CN111663458B - Self-supporting cantilever formwork, formwork construction auxiliary device and formwork construction technology - Google Patents
Self-supporting cantilever formwork, formwork construction auxiliary device and formwork construction technology Download PDFInfo
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- CN111663458B CN111663458B CN202010702336.8A CN202010702336A CN111663458B CN 111663458 B CN111663458 B CN 111663458B CN 202010702336 A CN202010702336 A CN 202010702336A CN 111663458 B CN111663458 B CN 111663458B
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- 238000010276 construction Methods 0.000 title claims abstract description 131
- 238000009415 formwork Methods 0.000 title claims abstract description 113
- 238000005516 engineering process Methods 0.000 title 1
- 239000002131 composite material Substances 0.000 claims abstract description 39
- 238000000034 method Methods 0.000 claims abstract description 31
- 230000008569 process Effects 0.000 claims abstract description 28
- 230000008093 supporting effect Effects 0.000 claims description 84
- 229910000831 Steel Inorganic materials 0.000 claims description 29
- 239000010959 steel Substances 0.000 claims description 29
- 230000008602 contraction Effects 0.000 claims 1
- 230000002787 reinforcement Effects 0.000 claims 1
- 238000009434 installation Methods 0.000 description 15
- 238000010586 diagram Methods 0.000 description 8
- 230000009286 beneficial effect Effects 0.000 description 3
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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Abstract
本发明公开了一种自撑式悬挑模板、模板施工辅助装置及模板施工工艺，涉及桥梁施工技术领域。该自撑式悬挑模板包括模板主体和支撑杆，模板主体上相对的两个侧边分别为连接侧边和悬挑侧边，连接侧边与组合梁侧面的工字钢上翼板的外边缘铰接，支撑杆的一端铰接于悬挑侧边，另一端用于抵持于工字钢的下翼板和腹板之间的夹角内，以通过支撑杆支撑模板主体。该自撑式悬挑模板、模板施工辅助装置及模板施工工艺具有拆装较便捷，且施工较安全的特点。
The present invention discloses a self-supporting cantilever formwork, a formwork construction auxiliary device and a formwork construction process, and relates to the technical field of bridge construction. The self-supporting cantilever formwork comprises a formwork body and a support rod, and two opposite sides on the formwork body are respectively a connecting side and a cantilever side, and the connecting side is hinged to the outer edge of the upper wing plate of the I-beam on the side of the composite beam, and one end of the support rod is hinged to the cantilever side, and the other end is used to abut against the angle between the lower wing plate and the web of the I-beam, so as to support the formwork body through the support rod. The self-supporting cantilever formwork, the formwork construction auxiliary device and the formwork construction process have the characteristics of convenient disassembly and assembly, and safe construction.
Description
Technical Field
The invention relates to the technical field of bridge construction, in particular to a self-supporting cantilever formwork, a formwork construction auxiliary device and a formwork construction process.
Background
The I-steel-concrete composite beam is widely applied to large-span and multi-span railway bridge engineering, and has the advantages of large spanning capacity, high building height and the like compared with a concrete simply supported beam and a concrete continuous beam.
In the construction process, however, cast-in-situ construction is required at the wing plate of the I-steel-mixed composite beam, but the height of the wing plate from the ground is higher, the template at the wing plate is more complicated to mount and dismount, and the safety is lower.
In view of this, it is particularly important to develop and design a self-supporting cantilever formwork, a formwork construction auxiliary device and a formwork construction process capable of solving the above technical problems.
Disclosure of Invention
The invention aims to provide a self-supporting cantilever formwork which has the characteristics of being convenient to assemble and disassemble and safe to construct.
The invention also aims to provide a template construction auxiliary device which has the characteristics of being convenient to assemble and disassemble and safe to construct.
The invention also aims to provide a template construction process which has the characteristics of being convenient to assemble and disassemble and safe to construct.
The invention provides a technical scheme that:
In a first aspect, an embodiment of the invention provides a self-supporting cantilever formwork, which comprises a formwork main body and a supporting rod, wherein two opposite side edges on the formwork main body are respectively a connecting side edge and a cantilever side edge, the connecting side edge is hinged with the outer edge of an upper flange plate of an I-steel on the side face of a combined beam, one end of the supporting rod is hinged with the cantilever side edge, and the other end of the supporting rod is used for being propped against an included angle between a lower flange plate and a web plate of the I-steel so as to support the formwork main body through the supporting rod.
In combination with the first aspect, in a first implementation manner of the first aspect, one end, away from the template main body, of the support rod is a support end, an end face of the support end is provided with a first supporting surface and a second supporting surface, the first supporting surface is used for supporting with a side face of the web, and the second supporting surface is used for supporting with a top face of the lower wing plate.
With reference to the first aspect and the foregoing implementation manner of the first aspect, in a second implementation manner of the first aspect, an end, close to the template main body, of the support rod is provided with a telescopic adjustment portion, the support rod is hinged to the overhanging side edge through the telescopic adjustment portion, and the telescopic adjustment portion can be lengthened or shortened to adjust the height of the overhanging side edge.
With reference to the first aspect and the foregoing implementation manner of the first aspect, in a third implementation manner of the first aspect, the telescopic adjusting portion is a positive and negative wire adjusting rod.
With reference to the first aspect and the foregoing implementation manner of the first aspect, in a fourth implementation manner of the first aspect, the support rod is provided with a lifting connection portion, and the template main body is provided with a lifting hole, and the self-supporting cantilever template further includes a lifting piece, which can pass through the lifting hole and is connected with the lifting connection portion, so as to lift the support rod, thereby driving the support rod to rotate relative to the template main body, so that an end of the support rod away from the cantilever side edge is located in an included angle between the web and the lower wing plate.
With reference to the first aspect and the foregoing implementation manner of the first aspect, in a fifth implementation manner of the first aspect, the number of the template main bodies is plural, the plural template main bodies are arranged and disposed, and the overhanging sides of adjacent template main bodies are connected with each other.
With reference to the first aspect and the foregoing implementation manner of the first aspect, in a sixth implementation manner of the first aspect, the self-supporting overhanging template further includes an anti-drop connection rope, where the anti-drop connection rope can be connected with the overhanging side edge and is used for being connected with a reinforcing steel bar on the composite beam.
In a second aspect, the embodiment of the invention also provides a template construction auxiliary device for installing the self-supporting cantilever template, which comprises a construction crane, wherein the construction crane is movably arranged on the combined beam and can be connected with the cantilever side edge so as to be used for lifting the template main body to move.
With reference to the second aspect, in a first implementation manner of the second aspect, the formwork construction auxiliary device further includes a construction guide rail, where the construction guide rail is used for being installed on the composite beam and is disposed along an extension direction of the composite beam, and the construction hoist is movably disposed on the construction guide rail, so as to hoist and mount the formwork main body connected to different positions of the composite beam along the construction guide rail.
With reference to the second aspect and the foregoing implementation manner of the second aspect, in a second implementation manner of the second aspect, the template construction auxiliary device further includes a construction transport vehicle, where the construction transport vehicle is movably disposed on the construction guide rail, and the construction transport vehicle is capable of moving along the construction guide rail, so as to be used for transporting the template main body.
The embodiment of the invention also provides a template construction process which is applied to the template construction auxiliary device, and comprises the steps of lifting the template main body to the outer edge of the upper wing plate, hinging the connecting side edge with the outer edge of the upper wing plate, lifting the supporting rod, and enabling one end, far away from the template main body, of the supporting rod to be propped against the included angle between the lower wing plate and the web plate, so that the supporting rod supports the template main body.
In combination with the third aspect, in the first implementation manner of the third aspect, the formwork construction process further includes lifting the overhanging side edge, and simultaneously lifting the connecting side edge by an auxiliary channel, wherein the auxiliary channel is a through channel arranged when bridge deck concrete on the composite beam is poured, one end of the auxiliary channel faces the connecting side edge, connection between the connecting side edge and the upper wing plate is disconnected, the connecting side edge is lowered so that the formwork main body is in a vertical state, and the self-supporting overhanging formwork is lifted to a preset position to complete dismantling work of the self-supporting overhanging formwork.
Compared with the prior art, the self-supporting cantilever template provided by the embodiment of the invention has the beneficial effects that compared with the prior art, the self-supporting cantilever template comprises the following components:
The two opposite sides on the template main body are respectively a connecting side and an overhanging side, the connecting side is hinged with the outer edge of the upper flange plate of the I-steel on the side face of the combined beam, one end of the supporting rod is hinged with the overhanging side, the other end of the supporting rod is used for propping against the lower flange plate of the I-steel corresponding to the template main body and the web plate to support the template main body through the supporting rod, so that when the template main body is installed, the connecting side of the template main body hinged with the supporting rod can be hinged with the outer edge of the upper flange plate first, then the supporting rod is pulled by the combination Liang Shangdi, so that one end of the supporting rod, far away from the overhanging side, is propped against the included angle between the lower flange plate of the corresponding I-steel and the web plate, and when the template main body is dismounted, the connection between the connecting side and the upper flange plate can be disconnected, the template main body can be lifted, the installation and the dismounting of the template main body are more convenient, and the constructor is not needed to carry out formwork supporting and form dismounting work below the I-steel in the construction process.
The template construction auxiliary device and the template construction process provided by the embodiment of the invention have the same beneficial effects as those of the self-supporting cantilever template in the prior art, and are not repeated herein.
In order to make the above objects, features and advantages of the present invention more comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solution of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described. It is appreciated that the following drawings depict only certain embodiments of the invention and are therefore not to be considered limiting of its scope. Other relevant drawings may be made by those of ordinary skill in the art without undue burden from these drawings.
Fig. 1 is a schematic structural diagram of a self-supporting cantilever formwork according to a first embodiment of the present invention when the self-supporting cantilever formwork is mounted on a composite beam.
Fig. 2 is a schematic structural diagram of the self-supporting cantilever formwork according to the first embodiment of the present invention when the self-supporting cantilever formwork is mounted on a composite beam at another view angle.
Fig. 3 is a schematic structural diagram of a support rod of a self-supporting cantilever formwork according to a first embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a formwork construction auxiliary device according to a second embodiment of the present invention.
Fig. 5 is a schematic structural view of a formwork construction auxiliary device according to a second embodiment of the present invention when a formwork main body is installed.
Fig. 6 is a schematic structural view of a formwork construction auxiliary device according to a second embodiment of the present invention when the formwork main body is detached.
Fig. 7 is a schematic flow chart of a part of a formwork construction process according to a third embodiment of the present invention.
Fig. 8 is a schematic flow chart of another part of the template construction process according to the third embodiment of the present invention.
The icon comprises a 20-template construction auxiliary device, a 21-construction crane, a 212-hoisting steel rope, a 22-construction guide rail, a 23-construction conveying vehicle, a 10-self-supporting cantilever template, a 11-template main body, 111-connecting sides, 112-cantilever sides, 113-lifting holes, 12-supporting rods, 120-supporting ends, 121-first supporting surfaces, 122-second supporting surfaces, 123-expansion adjusting parts, 125-lifting connecting parts, 13-lifting pieces, 15-anti-falling connecting ropes, 900-combined beams, 910-I-steel, 912-upper wing plates, 913-web plates, 916-lower wing plates, 920-bridge floor concrete and 921-auxiliary channels.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It will be apparent that the described embodiments are some, but not all, embodiments of the invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
It should be noted that like reference numerals and letters refer to like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures. The terms "upper," "lower," "inner," "outer," "left," "right," and the like refer to an orientation or positional relationship based on that shown in the drawings, or that is conventionally put in place when the inventive product is used, or that is conventionally understood by those skilled in the art, merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention. The terms "first," "second," and the like are used merely to distinguish between descriptions and are not to be construed as indicating or implying relative importance. The terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises an element.
It should be further noted that, unless explicitly stated or limited otherwise, terms such as "disposed," "connected," and the like should be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection, may be a mechanical connection, or an electrical connection, may be a direct connection, or may be an indirect connection via an intermediary, or may be a communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
The following describes specific embodiments of the present invention in detail with reference to the drawings.
First embodiment:
Referring to fig. 1 and 2, fig. 1 is a schematic structural diagram of a self-supporting cantilever formwork 10 according to a first embodiment of the present invention when installed on a composite beam 900. Fig. 2 is a schematic structural diagram of the self-supporting cantilever formwork 10 according to the first embodiment of the present invention when mounted on a composite beam 900. The composite beam 900 is an i-beam-hybrid composite beam.
The first embodiment of the present invention provides a self-supporting cantilever formwork 10, and the self-supporting cantilever formwork 10 has the characteristics of convenient assembly and disassembly and safer construction.
The structural composition, the working principle and the beneficial effects of the self-supporting cantilever formwork 10 according to the first embodiment of the present invention will be specifically described below.
Referring to fig. 1, fig. 2 and fig. 3, fig. 3 is a schematic structural diagram of a support rod 12 of a self-supporting cantilever formwork 10 according to a first embodiment of the present invention.
The self-supporting cantilever formwork 10 comprises a formwork main body 11 and a supporting rod 12, wherein the formwork main body 11 is supported by the supporting rod 12, so that the formwork main body 11 is convenient to install and detach, the formwork is not required to be manually supported below the combined beam 900, the operation is convenient, and the safety is high.
Specifically, two opposite sides on the template main body 11 are a connecting side 111 and an overhanging side 112, in this embodiment, the template main body 11 is rectangular, the connecting side 111 and the overhanging side 112 are two non-adjacent edges on the template main body 11, the connecting side 111 is hinged to an outer edge of an upper flange 912 of an i-steel 910 on a side surface of the composite beam 900, wherein the side surface of the composite beam 900 is a vertical side surface on the composite beam 900, two vertical side surfaces of the composite beam 900 are respectively provided with an i-steel 910, and an upper flange 912 and a lower flange 916 of the two i-steels 910 are horizontally arranged, and in addition, the outer edge of the upper flange 912 is an edge, far away from the composite beam 900, on the upper flange 912.
One end of the supporting rod 12 is hinged to the overhanging side 112, and the other end is used for being abutted against an included angle between a lower wing plate 916 and a web plate 913 of the I-steel 910 corresponding to the template main body 11, so that the template main body 11 is supported by the supporting rod 12, and the template main body 11 is in a state shown in fig. 1.
In this way, when the template main body 11 is installed, the connecting side 111 of the template main body 11 of the hinged support rod 12 can be hinged to the outer edge of the upper wing plate 912, and then the support rod 12 is lifted on the composite beam 900, so that one end of the support rod 12 away from the overhanging side 112 is propped against the included angle between the lower wing plate 916 and the web plate 913 of the corresponding I-steel 910, and when the template main body 11 is dismounted, the connection between the connecting side 111 and the upper wing plate 912 can be disconnected, so that the template main body 11 can be lifted, the installation and the dismounting are more convenient, and in addition, the construction process does not need the construction personnel to carry out formwork supporting and disassembling work below the I-steel 910, and the construction process also has the safer characteristic.
Further, the end of the supporting rod 12 far away from the die plate main body 11 is a supporting end 120, the end surface of the supporting end 120 may have a first supporting surface 121 and a second supporting surface 122 disposed at an included angle, and the first supporting surface 121 is used for supporting the side surface of the web 913 of the i-beam 910, and the second supporting surface 122 is used for supporting the top surface of the lower wing plate 916 of the i-beam 910, in other words, the supporting end 120 is simultaneously supporting the web 913 of the i-beam 910 and the top surface of the lower wing plate 916, so as to improve the stability of the supporting rod 12 supporting the i-beam 910 in a surface-to-surface supporting manner, thereby improving the stability of the die plate main body 11.
In addition, the end of the supporting rod 12 near the template main body 11 may be further provided with a telescopic adjusting portion 123, the supporting rod 12 is hinged to the overhanging lateral edge 112 through the telescopic adjusting portion 123, and the telescopic adjusting portion 123 can be extended or shortened to adjust the height of the overhanging lateral edge 112, so as to adjust the template main body 11 at a preset position.
It should be noted that the telescopic adjusting portion 123 may be a forward and reverse screw adjusting rod, that is, the telescopic adjusting portion 123 is a structure formed by a sleeve and two screw rods screwed at two ends of the sleeve, and the two screw rods are made to approach or separate from each other by rotating the sleeve along different directions, so as to achieve the effect of adjusting the length of the support rod 12, however, in other embodiments, the telescopic adjusting portion 123 may be other telescopic structures, and the structural form of the telescopic adjusting portion is not limited in this embodiment.
Further, the supporting rod 12 may be provided with a lifting connection portion 125, the template main body 11 may be provided with a lifting hole 113, and the self-supporting cantilever template 10 may further include a lifting piece 13, where the lifting piece 13 may pass through the lifting hole 113 and be connected with the lifting connection portion 125, so as to lift the supporting rod 12, thereby driving the supporting rod 12 to rotate relative to the template main body 11, so that an end of the supporting rod 12 away from the cantilever side 112 is located in an included angle between the web 913 and the lower wing plate 916. In this way, when installing the template main body 11, a constructor can lift the lifting piece 13 of the lifting connection part 125 connected to the support rod 12 on the composite beam 900 to drive the support rod 12 to move, so that the support end 120 is propped against the included angle between the web 913 and the lower wing plate 916, and the operation is safer.
It should be noted that, in the present embodiment, the pulling member 13 is a steel rod, which can pass through the pulling hole 113 and detachably hook the pulling connection portion 125, and the constructor pulls the pulling member 13 on the composite beam 900 Fang Caozuo to complete the movement of the supporting end 120 in the included angle between the web 913 and the lower wing plate 916, however, in other embodiments, the pulling member 13 may also be a steel rope or an auxiliary pulling driving member disposed on the composite beam 900.
Further, the number of the template bodies 11 may be plural, and the plurality of template bodies 11 are arranged in a row, and overhanging sides 112 of adjacent template bodies 11 are connected to each other, so as to improve stability of the template bodies 11.
In this embodiment, the overhanging side 112 is provided with a bolt hole (not shown) and the bolt is detachably inserted into the bolt hole of the adjacent template body 11 to connect the adjacent template body 11, so as to facilitate the installation and the removal.
Further, the self-supporting cantilever formwork 10 may further include a drop-preventing connection rope 15, wherein the drop-preventing connection rope 15 can be connected with the cantilever side 112 and used for being connected with the reinforcing steel bar on the composite beam 900, so as to prevent the formwork body 11 from suddenly dropping when the formwork body 11 is installed or removed, thereby further improving the safety.
The working principle of the self-supporting cantilever formwork 10 provided in the first embodiment of the present invention is as follows:
The two opposite sides on the template main body 11 are respectively a connecting side 111 and an overhanging side 112, the connecting side 111 is hinged with the outer edge of an upper wing plate 912 of the I-steel 910 on the side surface of the combined beam 900, one end of the supporting rod 12 is hinged with the overhanging side 112, the other end is used for propping against the included angle between a lower wing plate 916 and a web plate 913 of the corresponding I-steel 910 of the template main body 11, so that the template main body 11 is supported by the supporting rod 12, when the template main body 11 is installed, the connecting side 111 of the template main body 11 hinged with the supporting rod 12 can be hinged with the outer edge of the upper wing plate 912 first, then the supporting rod 12 is lifted on the combined beam 900, so that one end of the supporting rod 12 far away from the overhanging side 112 is propped against the included angle between the lower wing plate 916 and the web plate 913 of the corresponding I-steel 910, and when the template main body 11 is dismounted, the template main body 11 can be lifted, the installation and the dismounting are more convenient, and the construction process does not need the constructor to carry out formwork supporting and demolding work under the I-steel 910.
To sum up:
The first embodiment of the present invention provides a self-supporting cantilever formwork 10, which has the characteristics of convenient assembly and disassembly and safer construction.
Second embodiment:
referring to fig. 4, 5 and 6, fig. 4 is a schematic structural diagram of a template construction assisting apparatus 20 according to a second embodiment of the present invention. Fig. 5 is a schematic view of a construction of a form construction assisting apparatus 20 according to a second embodiment of the present invention when the form body 11 is installed. Fig. 6 is a schematic structural view of a form construction assisting apparatus 20 according to a second embodiment of the present invention when the form body 11 is detached.
The second embodiment of the present invention provides a formwork construction auxiliary device 20, where the formwork construction auxiliary device 20 is used for auxiliary installation of a self-supporting cantilever formwork 10, and has the characteristics of convenient assembly and disassembly, and safe construction.
The template construction auxiliary device 20 comprises a construction crane 21, wherein the construction crane 21 is movably arranged on a composite beam 900, and the construction crane 21 can be connected with an overhanging side edge 112 so as to hoist a template main body 11 to move, so that when the template main body 11 is installed, the template main body 11 is hoisted to move to the outer edge position of a wing plate 912 on an I-steel 910, when the template main body 11 is dismounted, the template main body 11 is prevented from falling off by hoisting the template main body 11, thereby improving the convenience and safety of the dismounting of the template main body 11, and the template main body 11 can be hoisted to the composite beam 900.
In this embodiment, the construction hoist 21 is a cantilever crane, which can rotate to cooperate with the boom to drive the cantilever formwork to move.
Further, the formwork construction assisting apparatus 20 may further include a construction guide 22, the construction guide 22 being adapted to be mounted to the composite beam 900, and the construction guide 22 being disposed along an extension direction of the composite beam 900, and the construction hoist 21 being movably disposed on the construction guide 22 to hoist the formwork main body 11 connected to different positions of the composite beam 900 along the construction guide 22.
In addition, the form construction assisting apparatus 20 may further include a construction conveyance vehicle 23, the construction conveyance vehicle 23 being movably provided to the construction guide rail 22, the construction conveyance vehicle 23 being movable along the construction guide rail 22 for transporting the form body 11.
When the template main body 11 is installed, the template main body 11 can be lifted to a position close to the outer edge of the upper wing plate 912 by a construction crane 21 from a construction transport vehicle so as to start the installation work of the self-supporting cantilever template 10, the anti-drop connecting rope 15 is connected with the steel bars on the combined beam 900 before the installation to prevent the template main body 11 from suddenly dropping, when the connecting side 111 is close to the outer edge of the upper wing plate 912, the connecting side 111 and the upper wing plate 912 are hinged, the template main body 11 is lowered, the supporting rod 12 is lifted by the lifting piece 13 so that the supporting rod 12 is supported at the right angle between the lower wing plate 916 and the web plate 913 of the I-shaped steel 910, when the template main body 11 is basically in place and the supporting rod 12 plays a supporting role, a constructor can finely adjust the height of the template main body 11 by rotating the telescopic adjusting part 123 so that the template main body 11 is positioned at a preset position and then connected with the adjacent template main body 11, and the lifting steel rope 212 of the template main body 11 is removed to complete the installation of the template main body 11.
When the template main body 11 is disassembled, the anti-drop connecting rope 15 is firstly connected with an anchor point on the poured bridge floor concrete 920 on the combined beam 900 to prevent the template from suddenly dropping, then the overhanging side edge 112 of the template main body 11 is connected with the lifting steel rope 212 of the construction crane 21, and then the auxiliary channel 921 stretches into the lifting piece 13 to pull the connecting side edge 111 of the template main body 11, wherein the auxiliary channel 921 is a through hole corresponding to the connecting side edge 111 when the bridge floor concrete 920 is poured, the connection between the connecting side edge 111 and the upper wing plate 912 is disconnected, the template main body 11 is gradually lowered until the template main body 11 is in a vertical state, as shown in fig. 6, then the template main body 11 is lifted up by the construction crane 21 and then is placed on the construction transport vehicle, and the construction transport vehicle is transported to another position to install the template main body 11 so as to realize recycling.
The working principle of the template construction assisting apparatus 20 according to the second embodiment of the present invention is as follows:
The self-supporting cantilever formwork 10 is transported by the construction transport vehicle, and the construction crane 21 lifts the self-supporting cantilever formwork 10 from the construction transport vehicle to a position close to the outer edge of the upper wing plate 912 so as to start the installation work of the self-supporting cantilever formwork 10. When the template main body 11 is detached, the overhanging side edge 112 of the template main body 11 is connected through the construction crane 21 so as to lift the template main body 11, keep the position of the template main body 11, and lift the template main body 11 onto a construction transport vehicle on the composite beam 900 through the construction crane 21, and the template main body 11 is installed by being transported to another position by the construction transport vehicle.
To sum up:
the second embodiment of the present invention provides a template construction auxiliary device 20, which also has the characteristics of convenient assembly and disassembly and safer construction.
Third embodiment:
Referring to fig. 7, fig. 7 is a schematic flow chart of a portion of a template construction process according to a third embodiment of the present invention.
The third embodiment of the present invention provides a formwork construction process, which is applied to the auxiliary construction device in the above embodiment, so as to be used for installing and dismantling the self-supporting cantilever formwork 10, and the formwork construction process also has the characteristics of convenient disassembly and assembly, and safer construction.
It should be noted that, the basic principle and the technical effects of the template construction process provided in this embodiment are the same as those of the foregoing embodiments, and for brevity, reference may be made to the corresponding contents of the foregoing embodiments.
The template construction process comprises the following steps:
And S101, lifting the template main body 11 to the outer edge of the upper wing plate 912. So as to start the installation work of the self-supporting cantilever formwork 10, and before the installation, the anti-falling connecting rope 15 can be connected with the steel bars on the combined beam 900, so as to prevent the formwork main body 11 from suddenly falling, and improve the safety.
Step S102, hinge-connecting the side 111 and the outer edge of the upper wing 912. When the connecting side 111 approaches the outer edge of the upper wing 912, the connecting side 111 and the upper wing 912 are hinged to facilitate the installation of the lower template body 11, further improving the safety of the installation of the template body 11.
Step S103, the supporting rod 12 is pulled, and one end of the supporting rod 12 far away from the template main body 11 is propped against the included angle between the lower wing plate 916 and the web plate 913. The formwork supporting action is simpler, the formwork supporting action is only needed to be operated on the combined beam 900, the safety is higher, in addition, a constructor can finely adjust the height of the formwork main body 11 by rotating the telescopic adjusting part 123, so that the formwork main body 11 is positioned at a preset position and is connected with the adjacent formwork main body 11, and then the lifting steel ropes 212 of the formwork main body 11 and the construction crane 21 are removed, so that the installation of the formwork main body 11 is completed.
Referring to fig. 8, fig. 8 is a schematic flow chart of another part of the template construction process according to the third embodiment of the present invention.
The formwork construction process may further include removing portions of the formwork body 11:
Step S104, the overhanging lateral edge 112 is pulled up, and the connecting lateral edge 111 is pulled up by the auxiliary channel 921. So as to maintain the position of the formwork main body 11, and in addition, before lifting the connecting side 111, the anti-drop connecting rope 15 can be connected with the anchor point on the poured bridge deck concrete 920 on the composite beam 900, so as to prevent the formwork from suddenly dropping.
In step S105, the connection side 111 is disconnected from the upper wing 912, and the connection side 111 is lowered to make the template body 11 in a vertical state. As shown in fig. 6, to facilitate the transfer of the template body 11 by the construction hoist 21.
And S106, lifting the self-supporting cantilever template 10 to a preset position to finish the dismantling work of the self-supporting cantilever template 10. The formwork main body 11 can be lifted onto the composite beam 900 by the construction crane 21 and then placed on the construction transport vehicle, and the construction transport vehicle is transported to another position for installation of the formwork main body 11, so that recycling is realized.
The working principle of the self-supporting cantilever formwork 10 provided by the third embodiment of the invention is as follows:
The operation of lifting the template body 11 to the outer edge of the upper wing plate 912 is performed on the composite beam 900, the operation of hinge-connecting the side 111 and the outer edge of the upper wing plate 912 is performed on the composite beam 900, and the operation of lifting the support rod 12 on the composite beam 900 such that the end of the support rod 12 remote from the template body 11 is abutted in the angle between the lower wing plate 916 and the web plate 913 is performed. The operation is simple, and the safety is high only by being carried out on the combined beam 900.
To sum up:
the third embodiment of the invention provides a template construction process which also has the characteristics of being convenient to assemble and disassemble and safe to construct.
The above description is only of the preferred embodiments of the present invention, and is not intended to limit the present invention, and the features of the above embodiments may be combined with each other, and various modifications and variations may be possible to those skilled in the art without collision. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention. Moreover, the present embodiments are to be considered as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (9)
1. The self-supporting cantilever formwork is characterized by comprising a formwork main body (11) and a supporting rod (12);
Two opposite side edges on the template main body (11) are respectively a connecting side edge (111) and an overhanging side edge (112), and the connecting side edge (111) is hinged with the outer edge of an upper wing plate (912) of an I-steel (910) on the side surface of the combined beam (900);
One end of the supporting rod (12) is hinged to the overhanging side edge (112), and the other end of the supporting rod is used for propping against an included angle between a lower wing plate (916) and a web plate (913) of the I-steel (910) so as to support the template main body (11) through the supporting rod (12);
a lifting connecting part (125) is arranged on the supporting rod (12), and a lifting hole (113) is formed in the template main body (11);
The self-supporting cantilever formwork (10) further comprises a lifting piece (13), the lifting piece (13) can penetrate through the lifting hole (113) and is connected with the lifting connecting portion (125) to lift the supporting rod (12), so that the supporting rod (12) is driven to rotate relative to the formwork main body (11), and one end, away from the cantilever side edge (112), of the supporting rod (12) is located in an included angle between the web (913) and the lower wing plate (916).
2. The self-supporting cantilever formwork according to claim 1, wherein one end of the supporting rod (12) far away from the formwork main body (11) is a supporting end (120), the end face of the supporting end (120) is provided with a first supporting surface (121) and a second supporting surface (122) which are arranged in an included angle, the first supporting surface (121) is used for supporting the side face of the web (913), and the second supporting surface (122) is used for supporting the top face of the lower wing plate (916).
3. The self-supporting cantilever formwork according to claim 1, wherein one end of the supporting rod (12) close to the formwork main body (11) is provided with a telescopic adjusting part (123), and the supporting rod (12) is hinged with the cantilever side edge (112) through the telescopic adjusting part (123);
The expansion and contraction adjusting part (123) can be expanded or contracted to adjust the height of the overhanging lateral edge (112).
4. The self-supporting cantilever formwork according to claim 1, wherein the number of the formwork main bodies (11) is plural, the plurality of the formwork main bodies (11) are arranged in a row, and the cantilever side edges (112) of the adjacent formwork main bodies (11) are connected with each other.
5. The self-supporting cantilever formwork according to claim 1, wherein the self-supporting cantilever formwork (10) further comprises an anti-drop connecting rope (15), the anti-drop connecting rope (15) being connectable with the cantilever side (112) and being adapted to be connected with a reinforcement bar on the composite beam (900).
6. A formwork construction assist device, characterized by being adapted to mount a self-supporting cantilever formwork (10) according to any one of claims 1-5;
The template construction auxiliary device (20) comprises a construction crane (21), wherein the construction crane (21) is used for being movably arranged on the combined beam (900) and can be connected with the overhanging side edge (112) so as to be used for lifting the template main body (11) to move.
7. The formwork construction assist apparatus as claimed in claim 6, wherein the formwork construction assist apparatus (20) further comprises a construction guide rail (22), the construction guide rail (22) is configured to be mounted to the composite beam (900) and disposed along an extension direction of the composite beam (900), and the construction hoist (21) is movably disposed on the construction guide rail (22) to hoist the formwork main body (11) connected to different positions of the composite beam (900) along the construction guide rail (22).
8. The formwork construction assist apparatus according to claim 7, wherein the formwork construction assist apparatus (20) further comprises a construction conveyance vehicle (23), the construction conveyance vehicle (23) being movably provided to the construction guide rail (22), the construction conveyance vehicle (23) being movable along the construction guide rail (22) for transporting the formwork main body (11).
9. A form construction process, applied to the form construction auxiliary device according to any one of claims 6 to 8, comprising:
lifting the template main body (11) to the outer edge of the upper wing plate (912);
-hinging the connecting side (111) and the outer edge of the upper wing (912);
and lifting the supporting rod (12), and enabling one end, far away from the template main body (11), of the supporting rod (12) to be propped against an included angle between the lower wing plate (916) and the web plate (913), so that the template main body (11) is supported by the supporting rod (12).
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| CN202010702336.8A CN111663458B (en) | 2020-07-20 | 2020-07-20 | Self-supporting cantilever formwork, formwork construction auxiliary device and formwork construction technology |
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| CN202010702336.8A CN111663458B (en) | 2020-07-20 | 2020-07-20 | Self-supporting cantilever formwork, formwork construction auxiliary device and formwork construction technology |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN202954365U (en) * | 2012-11-19 | 2013-05-29 | 天津二建建筑工程有限公司 | Prefabricated detachable foundation pit ladder rest platform and diaphragm wall connection structure |
| CN212742231U (en) * | 2020-07-20 | 2021-03-19 | 成都华川公路建设集团有限公司 | Self-supporting overhanging formwork and formwork construction auxiliary device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5020162B2 (en) * | 2008-05-29 | 2012-09-05 | 日鐵住金建材株式会社 | Support for overhanging slab |
| CN203654695U (en) * | 2013-10-30 | 2014-06-18 | 黑龙江省建设集团有限公司 | Foldable support frame |
| CN105064670B (en) * | 2015-07-31 | 2017-03-15 | 北京建工路桥工程建设有限责任公司 | Exterior wall cantilevered plate formwork for placing sets up support |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202954365U (en) * | 2012-11-19 | 2013-05-29 | 天津二建建筑工程有限公司 | Prefabricated detachable foundation pit ladder rest platform and diaphragm wall connection structure |
| CN212742231U (en) * | 2020-07-20 | 2021-03-19 | 成都华川公路建设集团有限公司 | Self-supporting overhanging formwork and formwork construction auxiliary device |
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