WO2015120622A1 - Procédé pour éléments à treillis sans membrure et pont à nœuds combinés - Google Patents

Procédé pour éléments à treillis sans membrure et pont à nœuds combinés Download PDF

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Publication number
WO2015120622A1
WO2015120622A1 PCT/CN2014/072110 CN2014072110W WO2015120622A1 WO 2015120622 A1 WO2015120622 A1 WO 2015120622A1 CN 2014072110 W CN2014072110 W CN 2014072110W WO 2015120622 A1 WO2015120622 A1 WO 2015120622A1
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WO
WIPO (PCT)
Prior art keywords
plate
unit
embedded
pier
combined
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Ceased
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PCT/CN2014/072110
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English (en)
Chinese (zh)
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WO2015120622A9 (fr
Inventor
李勇
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Individual
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Individual
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Priority to PCT/CN2014/072110 priority Critical patent/WO2015120622A1/fr
Priority to CN201480001964.6A priority patent/CN104583496B/zh
Publication of WO2015120622A1 publication Critical patent/WO2015120622A1/fr
Anticipated expiration legal-status Critical
Publication of WO2015120622A9 publication Critical patent/WO2015120622A9/fr
Ceased legal-status Critical Current

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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
    • E01D2/00—Bridges characterised by the cross-section of their bearing spanning structure
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D6/00—Truss-type bridges
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D19/00—Structural or constructional details of bridges
    • 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
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/29—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures
    • E04C3/293—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures the materials being steel and concrete
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D2101/00—Material constitution of bridges
    • E01D2101/20—Concrete, stone or stone-like material
    • E01D2101/24—Concrete
    • E01D2101/26—Concrete reinforced
    • E01D2101/268—Composite concrete-metal

Definitions

  • the invention relates to the field of bridge engineering, in particular to a steel bellows PC combined bridge.
  • the invention provides a combined node bridge, comprising a segment unit structure, the block unit structure comprising:
  • the single element is at least two;
  • the integrated structure of the pier and the joint includes a shearing connection, and each of the two adjacent unit members is connected end to end through the integrated structure of the pier and the pier, so that the The single component forms a unit structure for overall handling and disassembly.
  • the integrated structure of the pier-type integrated node specifically includes:
  • each unit member is fixed with a pre-embedded plate
  • the plate plane of the pre-embedded plate is obliquely disposed with the beam top plate and/or the beam bottom plate
  • shear stud vertically fixed on the embedded plate
  • a shearing connection member the shearing connection member is provided with a reinforcing hole, and the lower end of the shearing connecting member is a plate body structure, and the plate body structure is used for extending into the beam top plate and/or the beam bottom plate for fixing The plate structure is fixed to the embedded plate.
  • the unit parts are connected in advance through the integrated structure of the stern-doped integral node structure to form a combined integral node structure which can be integrally handled and disassembled, and the unit elements can be directly connected to form a stern section, thereby ensuring the whole of the node.
  • the structure and structure are mechanically safe, and the integrated unit structure, especially the shear connection, makes the discrete unit parts form an integral section, without the upper chord and the lower chord, which greatly facilitates the construction.
  • the hoisting has realized the construction of the steel web without bracket.
  • the present invention also provides a bridge structure comprising a beam top plate and a beam floor, and further comprising at least one combined node bridge according to any of the above embodiments, wherein the unitary unit structure of the combined node bridge is disposed on the beam Between the top plate and the bottom plate of the beam, wherein the integrated joint node structure of the pier joints connected with the unit member extends into the beam top plate or the beam bottom plate to be fixed to form a bridge.
  • the invention further provides a chordless element method, comprising the steps;
  • Single component pouring step pouring concrete in a steel pipe to form a steel tube concrete
  • Welding step at least two unit pieces are connected end to end in advance, and each adjacent two unit parts are connected by a single pier combined integral node structure to form at least one segment unit structure, and the pier joint combined overall node structure is specific
  • the utility model comprises a pre-embedded plate, a shear-resistant stud and a shearing force connecting member, wherein the fixed end of each unit member is fixed with a pre-embedded plate, and the plate plane of the pre-embedded plate is obliquely disposed with the beam top plate and/or the beam bottom plate;
  • the shear stud is vertically fixed on the embedded plate;
  • the shearing connection member is provided with a steel bar hole, and the lower end of the shearing force connecting member is a plate body structure, and the plate body structure is used for extending into the beam top plate and/or the beam bottom plate, and the plate body structure and the pre-plate Buried plate
  • Lifting step sling the unit structure of the raft section in sections, firstly hoisting the unit structure of the first rafter in position, and then making temporary auxiliary fixing, and reinforced the unit body after hoisting the second raft;
  • Temporary reinforcement step two pieces of chord-free element method and combined node bridge are temporarily connected to the whole through angle steel to form a solid unit body, and then the next group is hoisted;
  • Step of pouring the bottom plate of the beam removing the temporary reinforcement and pouring the bottom plate of the beam;
  • Step of pouring the beam roof support the vertical mold on the bottom plate of the beam and pour the roof of the beam.
  • the step of adding a temporary small chord step is: temporarily adding some or all of the adjacent two unit elements in the same ⁇ segment unit structure When a small chord is installed, when a small chord is added to a part of the unit, the unit with the small chord is located within the scope of the construction sling;
  • the step of removing the temporary small chord is as follows: the small chord added in the step of adding the temporary small chord is removed.
  • the rafter unit structure in the above-mentioned combined node bridge is disposed between the beam top plate and the beam floor, wherein the stern combination combined with the unit member
  • the integral node structure extends into the beam roof or the beam floor to form a bridge, and it is because the combined node bridge is a combination of integral nodes and no chords, which not only ensures the integrity of the joint and the structural safety. Moreover, it is convenient for construction hoisting, realizing the construction of steel webs without brackets, shortening the construction period and reducing the construction cost.
  • FIG. 1 is a schematic diagram of an implementation step in an embodiment of a chord-free unit method of the present application
  • FIG. 2 is a diagram showing an implementation step in a second embodiment of the chord-free unit method of the present application
  • FIG. 3 is a schematic diagram of implementation steps in a third embodiment of the chord-free element method of the present application.
  • FIG. 4 is an exploded view of an embodiment 1 of a composite node structure of the present invention.
  • FIG. 5 is an assembled view of the first embodiment of the integrated joint structure of the pier and pier;
  • FIG. 6 is another perspective view of the shearing force connecting member in the first embodiment of the composite pier joint structure of the present invention.
  • FIG. 7 is an exploded view of the second embodiment of the integrated structure of the pier-type joint of the present application.
  • FIG. 8 is an assembly view of the second embodiment of the integrated structure of the pier-type joint of the present application.
  • FIG. 9 is an exploded view of a third embodiment of the integrated joint structure of the pier and pier;
  • FIG. 10 is an assembled view of the third embodiment of the integrated joint structure of the pier and pier according to the present application.
  • the present application proposes a combined node bridge, which includes a ⁇ segment unit structure, which includes an empty unit member and a ⁇ ⁇ combined integral node structure.
  • the unitary member is at least two, and the integrated structure of the rammed joint comprises a shearing connection member for resisting the shear force formed between the unit members.
  • Each of the two adjacent unit members is connected end to end through the integrated structure of the pier and the joint, so that the unit member forms a unit structure for overall handling and disassembly, so as to facilitate construction and lifting.
  • the composite joint structure of the pier and pier joint refers to a structure in which two unit members are coupled by using a shear force connecting piece and its supporting components.
  • the following is abbreviated as the integrated structure of the pier joint integrated node.
  • the integrated structure of the pier-type integrated structure includes:
  • a manifold having a fixed end port for attachment to the beam roof and/or the beam floor opposite the beam roof and/or the beam floor;
  • a pre-embedded plate the fixed end of each of the manifolds is fixed with a pre-embedded plate, and the plate plane of the pre-embedded plate is obliquely disposed with the beam top plate and/or the beam bottom plate;
  • the shearing connecting member is provided with a reinforcing hole and fixed to the embedded steel plate, and the lower end of the shearing connecting member is a plate body structure, and the plate body structure extends into the beam top plate and/or the beam bottom plate to be fixed ;
  • shear stud is vertically fixed to the embedded plate.
  • the present embodiment exemplarily proposes three types of integrated structure of the stern-doped integrated node, but it is completely possible for those skilled in the art to perform the three embodiments based on the three embodiments without any creative work.
  • the disclosed solutions can be easily proposed in combination with the prior art, such as common knowledge, conventional means, and the like, and all of the embodiments are included in the scope of the present specification.
  • the first embodiment includes two manifolds 282, 283 (i.e., a unitary member, which may be a concrete filled steel tube), a beam top plate 25 (or a beam floor 26), an inner conduit 41, a pre-embedded plate 42a, Shear connector 43, shear stud 44, stiffener 45 and U-shaped bars 46.
  • the ports of the fixed ends of the two manifolds 282 and 283 are arranged in an "eight" shape, wherein the embedded plate 42a is disposed on
  • the "eight"-shaped structure has a smaller opening end, and the inner tube 41 is fixedly fixed in the fixed end of each of the manifolds, and is fixed to the pre-embedded plate 42a through the inner tube 41, wherein the inner tube 41 functions as an auxiliary coupling.
  • the shear connector 43 can employ an S-PBL shear connector 43 or a T-PBL shear connector 43.
  • the shearing force connecting member 43 has a plate shape, and has a reinforcing hole formed therein, and is fixed to the embedded plate 42a (which may be a pre-buried steel plate). Its lower end extends into the beam top panel 25 and/or the beam bottom panel 26 for attachment. Referring to FIG. 6 , the shear connector 43 is a top view of the I-shaped structure.
  • the stiffening plate 45 is fixedly coupled to the two manifolds 282, 283 and their corresponding embedded panels 42a for providing further reinforcement, although it may be omitted in other embodiments.
  • the U-shaped reinforcing bar 46 abuts against the fixed embedded plate 42a, and the lower end of the reinforcing bar extends into the beam top plate 25 and/or the beam bottom plate 26 to improve the load carrying capacity.
  • the lower end of the reinforcing bar extends into the beam top plate 25 and/or the beam bottom plate 26 to improve the load carrying capacity.
  • it can also be omitted in other embodiments.
  • the pre-embedded plates 42a corresponding to the two manifolds 282 and 283 are disposed independently of each other.
  • the difference from the first embodiment is that the pre-embedded plates 42b corresponding to the two manifolds are coupled to each other in an integrated structure.
  • the difference between the third embodiment and the first embodiment is that the stiffening plate 45 in the first embodiment is omitted in the integrated structure of the pier-and-pin joint structure provided in the third embodiment.
  • the integrated joint structure of the pier and pier provided by the present application can fully solve the stress concentration of the joint, has a single function, and does not require additional coating corrosion protection measures.
  • the nodes in the structure are monolithic and the force is clear.
  • the PBL parts have large shear capacity and good fatigue resistance; and the overall rigidity is good.
  • the discrete unit parts can be formed into a one-piece stern section, without the upper chord and the lower chord, which greatly facilitates the construction hoisting and realizes the construction of the steel web without bracket.
  • the present application further provides a bridge structure including a beam top plate 25 and a beam floor 26, and further comprising at least one combined node bridge according to any of the above, the combination
  • the unit structure of the truss section of the node bridge is disposed between the beam top plate 25 and the beam bottom plate 26, wherein the truss-combined integral node structure portion connected with the unit members 282, 283 extends into the beam top plate 25 or the beam bottom plate 26 to be fixed to form a bridge.
  • the above-mentioned rafter unit structure is disposed between the beam top plate and the beam bottom plate, wherein the integrated joint node structure of the stern pier jointed with the unit piece extends into the beam top plate or the beam bottom plate to be fixed and formed into a bridge, and
  • the above-mentioned combined node bridge is characterized by a combined integral node and no chord, which not only ensures the integrity of the joint and the structural force and safety, but also facilitates the construction hoisting, realizes the construction of the steel web without bracket, shortens the construction period and reduces the construction cost.
  • the present application further proposes a chord-free element method corresponding to the above-mentioned bridge structure. Please refer to FIG. 1 and also refer to FIG. 4-10 for reference, which includes the steps:
  • Welding step at least two unit parts 282, 283 are connected end to end in advance, and each adjacent two unit parts 282, 283 are connected by a single pier combined integral node structure to form at least one unit structure, as shown in FIG. B, C is shown.
  • the integrated structure of the pier-type integrated structure reference may be made to the above embodiment, which specifically includes the pre-embedded plates 42a, 42b, the shear-resistant pegs 44 and the shearing force connecting members 43, and the fixed ends of each of the unit members 282, 283 are fixed
  • the pre-embedded plates 42a, 42b, the plate planes of the pre-embedded plates 42a, 42b are obliquely disposed with the beam top plate 25 and/or the beam bottom plate 26;
  • the shear studs 44 are vertically fixed to the pre-embedded plates 42a, 42b;
  • the shearing force connecting member 43 is provided with a reinforcing hole, and the lower end of the shearing force connecting member 43 is a plate body structure, and the plate body structure is used for extending into the beam top plate 25 and/or the beam bottom plate 26 to fix the plate.
  • the body structure is fixed to the embedded plates 42a, 42b.
  • the integrated structure of the stern-doped integrated node can be any one of the above three embodiments, or can be combined with common knowledge and habits based on the solutions disclosed by the three embodiments without any creative work by those skilled in the art. Other solutions are easily proposed by the prior art such as means.
  • Stiffening plate step welding the stiffening plates on the two unit members 282, 283 and their corresponding pre-embedded plates 42a, 42b, as shown in B and C of FIG.
  • the stiffening plate 45 may be omitted, so that the step corresponding to the stiffening plate may be omitted.
  • Lifting step hoisting the unit structure of the raft section, first lifting the unit structure of the first rafter in position, and then making temporary auxiliary fixing, and reinforced the unit body after hoisting the second raft.
  • Temporary reinforcement step the two unit sections are temporarily joined through the angle steel to temporarily join them into a whole body to form a stable unit body, and then hoist the next group;
  • Step of pouring the bottom plate of the beam Remove the temporary reinforcement and pour the bottom plate 26 of the beam, as shown in D of Fig. 1.
  • Step of pouring the beam roof support the vertical mold on the bottom plate of the beam, and pour the beam top plate 25, as shown in D of Fig. 1.
  • a step of adding a temporary small chord before the lifting step in the above method in the same unit structure, some or all of the adjacent two unit elements are temporarily added.
  • a small chord 7 is installed to increase the joint strength, and when a small chord 7 is attached to a part of the unit member, the unit member to which the small chord 7 is attached is located within the range of the construction sling 6.
  • a small chord 7 is added between all the unit members, and in the step C2 in Fig. 3, the unit member only in the range of the construction sling 6 is provided with a small chord 7.
  • the step of removing the temporary small chord is added: the small chord added in the step of adding the temporary small chord is removed.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Bridges Or Land Bridges (AREA)

Abstract

Cette invention concerne un procédé pour éléments à treillis sans membrure procédé et un pont à nœuds combinés, dans lequel les éléments unitaires dans le pont à nœuds combinés sont préalablement reliés bout-à-bout pour former une structure d'ensemble à nœuds à treillis/piles combinés de façon à obtenir une structure d'ensemble à nœuds combinés pouvant être transportée et démontée en une seule pièce. Par ailleurs, les éléments unitaires peuvent former directement un segment à treillis lorsqu'ils sont connectés, de manière à garantir l'intégrité des nœuds et de la structure lorsqu'ils sont soumis à des forces. De plus grâce à ladite structure d'ensemble à nœuds à treillis/piles combinés et en particulier à des connecteurs de cisaillement, les éléments unitaires discrets forment un segment à treillis intégré. L'utilisation d'une membrure supérieure et d'une membrure inférieure n'est pas nécessaire, ce qui facilite considérablement le levage au cours de la construction, et la réalisation d'une construction d'éléments à âme d'acier sans échafaudage.
PCT/CN2014/072110 2014-02-14 2014-02-14 Procédé pour éléments à treillis sans membrure et pont à nœuds combinés Ceased WO2015120622A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/CN2014/072110 WO2015120622A1 (fr) 2014-02-14 2014-02-14 Procédé pour éléments à treillis sans membrure et pont à nœuds combinés
CN201480001964.6A CN104583496B (zh) 2014-02-14 2014-02-14 无弦杆桁元法与组合式节点桥梁

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2014/072110 WO2015120622A1 (fr) 2014-02-14 2014-02-14 Procédé pour éléments à treillis sans membrure et pont à nœuds combinés

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WO2015120622A9 WO2015120622A9 (fr) 2016-10-20

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108252425A (zh) * 2018-03-28 2018-07-06 福州大学 一种钢管约束混凝土节点结构及相应桁架结构与施工方法
CN109468946A (zh) * 2018-04-12 2019-03-15 上海公路投资建设发展有限公司 一种用于大型盖梁悬臂拼装的钢结构临时固定装置及工艺
CN119180077A (zh) * 2024-08-14 2024-12-24 西南交通大学 钢桁梁桥拼装随机误差向成桥线形偏差传播的计算方法

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CN109024217A (zh) * 2018-07-17 2018-12-18 中铁大桥勘测设计院集团有限公司 腹杆与弦杆的连接结构及焊接方法
CN110725217A (zh) * 2019-11-28 2020-01-24 广东冠生土木工程技术股份有限公司 一种装配式超高性能混凝土梁及其施工方法
CN110777644A (zh) * 2019-12-03 2020-02-11 广东冠生土木工程技术股份有限公司 一种超高性能混凝土桁架梁及其施工方法
CN116732909A (zh) * 2023-07-05 2023-09-12 中铁大桥勘测设计院集团有限公司 一种钢桁梁节段的临时加固方法

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CN101936054B (zh) * 2010-08-19 2012-07-25 李勇 钢桁腹组合pc梁及其施工方法
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WO2008100026A1 (fr) * 2007-02-16 2008-08-21 Hyundai Engineering & Construction Co., Ltd. Poutre composite avec âme en treillis en acier présentant des liaisons articulées, et structure de liaison correspondante
CN101787678A (zh) * 2010-02-08 2010-07-28 中铁一局集团有限公司 大跨度节段拼装造桥机及其拼装施工工艺
KR101141885B1 (ko) * 2010-03-30 2012-05-03 권오근 강관트러스 복합 거더의 강관과 콘크리트 현재 합성용 연결재 및 그를 이용한 강관트러스 복합 거더
WO2013172598A1 (fr) * 2012-05-15 2013-11-21 (유)하남종합건설 Élément âme pour améliorer structure de raccordement de nœuds de pont à poutre triangulée composite
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108252425A (zh) * 2018-03-28 2018-07-06 福州大学 一种钢管约束混凝土节点结构及相应桁架结构与施工方法
CN108252425B (zh) * 2018-03-28 2023-12-08 福州大学 一种钢管约束混凝土节点结构及相应桁架结构与施工方法
CN109468946A (zh) * 2018-04-12 2019-03-15 上海公路投资建设发展有限公司 一种用于大型盖梁悬臂拼装的钢结构临时固定装置及工艺
CN109468946B (zh) * 2018-04-12 2024-04-12 上海公路投资建设发展有限公司 一种用于大型盖梁悬臂拼装的钢结构临时固定装置及工艺
CN119180077A (zh) * 2024-08-14 2024-12-24 西南交通大学 钢桁梁桥拼装随机误差向成桥线形偏差传播的计算方法

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CN104583496A (zh) 2015-04-29
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