CN102777034A - Concrete pouring method for combined structural steel and concrete structure of high-rise building - Google Patents

Abstract

The invention discloses a concrete pouring method for a steel-concrete composite structure of a high-rise building. When pouring a steel column, the steel column is poured and vibrated in different areas by adopting the method of simultaneously pouring progress and dislocation advancement; when pouring a steel beam , using the vertical grid method to divide the steel beams into two sides for pouring and vibration. The concrete pouring method used for the steel-concrete composite structure of this high-rise building is to press the section grid interval of the steel column or steel beam, and advance the dislocation of the pouring progress of each grid at the same time, and make full use of the dislocation height difference pressure of the concrete pouring progress in each grid , effectively make the gas in the concrete in the steel column and the steel beam and the gas in the square corner formed by the stiffened steel plate be completely discharged, eliminate the common quality defect of the concrete cavity in the traditional pouring method, ensure the compactness of the concrete, and improve the quality of the concrete. Construction quality of steel columns and beams. The construction technology is reasonable and convenient, the construction method is advanced, and the quality and safety of the project can be guaranteed.

Description

Concrete pouring method for steel-concrete composite structure of high-rise buildings

technical field

The invention relates to the technical field of beam-column structure construction in civil engineering, in particular to a concrete pouring method for a steel-concrete composite structure of a high-rise building.

Background technique

With the improvement of architectural design level, people's requirements for high space and wide plane of buildings have become high-end. In addition to the requirements for high space and long span floors, the commercial floors and entrance halls of high-rise buildings also require wall column sections in plane layout. The occupied area is the smallest, and the usable area is the largest, so as to achieve the good effect of building function. These high-space and long-span floors are often located at the bottom of high-rise buildings, and the bearing capacity of beams and columns is large, so the cross-sectional size of reinforced concrete beams and columns is required to increase accordingly. At present, a new technology of "steel-concrete composite structure" has been adopted in the field of architectural structure design, which is characterized by the advantage of high bearing capacity that the bearing capacity of steel-concrete components is more than twice that of reinforced concrete components of the same shape and size. Minimize the cross-sectional size of the beams and columns to meet the effect of building functionally high space and the maximum usable area of the planar space.

In the steel-concrete composite structure, due to the separation of the web steel plate of the steel column and the flange steel plate in the section of the steel concrete column and the relatively high density of the reinforcement of the outsourcing concrete, there are web steel plates of the steel beam and the upper and lower sides of the steel concrete beam in the section. The separation of the steel plates and the reinforcement density of the outsourcing concrete are also relatively high, and the pouring of the concrete is difficult. According to the traditional construction method, although some air vents are left in the design of the square inner corners of the stiffened ribs of the steel beam-column members, during the concrete pouring process, the air here is very difficult to discharge, making the concrete a cavity And there are quality problems.

Contents of the invention

The purpose of the present invention is to overcome the deficiencies in the prior art and provide a concrete pouring method for the steel-concrete composite structure of high-rise buildings. The compactness quality of concrete.

The technical scheme of the present invention is: a kind of concrete pouring method that steel-concrete composite structure of high-rise building is used, comprises the following steps:

(1) Install shaped steel columns, shaped steel beams, steel bars and templates;

(2) Install concrete pouring strings in steel columns;

(3) Inject cement mortar with a thickness of 50~100mm at the bottom of the steel column;

(4) According to the cross-section division of the steel column, adopt the method of shifting the pouring progress at the same time, pour concrete into the steel column through the concrete pouring string according to the order of each division, and vibrate the concrete with the vibrating rod until the steel The height of the concrete in the column is 10~20mm higher than the bottom surface of the steel beam;

(5) Along the longitudinal axis of the shaped steel beam, according to the longitudinal division of the shaped steel beam, the two sides of the shaped steel beam are respectively the first side and the second side, and the bottom edge of the first side of the shaped steel beam is stamped first Enter the concrete with a height of 300~400mm, and vibrate the concrete with a vibrating rod, so that the concrete flows through the bottom of the shaped steel beam to the bottom edge of the second side of the shaped steel beam, and check and confirm that all the gas in the concrete has been discharged;

Use the method of high and low dislocation, alternately pour concrete into the second side and the first side and vibrate, and at the same time repeatedly check and confirm that the air in the concrete has been completely discharged, until the concrete in the first side and the second side are higher than the mold The beam surface of the steel beam is 30mm~50mm.

Wherein, the content of each component in the cement mortar described in step (3) is the same as the content of each component of the cement mortar contained in the concrete.

The method of dislocation advancement of the simultaneous pouring progress mentioned in step (4) is: concrete pouring and subsequent concrete vibration are carried out in the order of the section divisions of the steel column, and the concrete pouring string is tapped in the previous division of the column section. The concrete is inserted into the concrete, and the concrete is vibrated by the vibrating rod in the latter compartment at the same time.

The concrete pouring tube is made of thin steel plate, and the diameter D ₁ is about 40cm smaller than the diameter D of the pouring hole reserved on the steel column stiffener, that is, D=150-200mm, D ₁ =110-160mm. In order to easily pass through the hole of the stiffener steel plate during operation and facilitate concrete pouring, the length of the string can reach 4~6m, and the upper end is a funnel-shaped feeding port with a movable connection, from which the concrete can be directly poured into the concrete pouring string . If the profiled steel column section is two to three storeys high and concrete is poured in the middle layer, the outlet hose of the pumping concrete pump pipe can be inserted into the joint of the concrete pouring string from the opening of the steel plate on the side flange of the profiled steel column, and Concrete is poured into the concrete pouring stringer. The two sides of the concrete pouring string are welded with lifting rings to facilitate hoisting when tamping concrete.

The method of height dislocation described in step (5) is as follows: first, pour concrete with a height of 300~400mm into the bottom edge of the first side of the shaped steel beam, and vibrate to make the concrete flow to the bottom edge of the second side of the shaped steel beam , check and confirm that the gas in the bottom concrete has been completely discharged; then pound the concrete on the second side of the steel beam and vibrate, and at the same time repeat the inspection and confirm that the gas in the bottom concrete has been completely discharged until the concrete height of the second side is higher than The first side is 100mm higher; then pour concrete into the first side of the shaped steel beam and vibrate, and at the same time repeatedly check and confirm that the air in the concrete has been completely discharged, until the concrete height of the first side is 100mm higher than the second side; Repeat alternately pounding concrete on the second side and the first side and vibrating until the concrete on the first side and the second side is 30mm~50mm higher than the beam surface of the steel beam, repeat the vibration of the concrete, check and confirm that the steel beam is The air in the concrete at the corner of the bottom of the beam surface steel plate, the beam web and the stiffener steel plate has been completely discharged.

The middle part of the shaped steel column is a cross structure composed of two web steel plates perpendicular to each other, and the four ends of the cross structure are respectively provided with flange steel plates, and the shaped steel beams are vertically connected with the flange steel plates; multiple stiffening rib steel plates are arranged in the shaped steel column Each stiffener steel plate is vertically arranged with the cross structure, and concrete pouring holes are reserved in the four areas divided by the cross structure into the stiffener steel plate.

The step (4) is specifically:

(4-1) According to the cross structure, the section of the shaped steel column is divided into 4 grids, corresponding to the 4 areas of the stiffened steel plate, and the section of the shaped steel column between two adjacent stiffened steel plates is divided into 4 pouring areas;

(4-2) Aiming at a section of steel section, first pour concrete with a height of 400~500mm into the first pouring area through the concrete pouring string;

(4-3) After pouring concrete into the first pouring area, vibrate the concrete in the first pouring area with a vibrating rod, and at the same time pour concrete into the second pouring area with a height of 400~ 500mm of concrete;

(4-4) Vibrate the concrete in the second pouring area and the concrete in the third pouring area at the same time, vibrate the concrete in the third pouring area and the concrete in the fourth pouring area Simultaneously;

(4-5) After the concrete in the fourth pouring area is rammed in, vibrate the concrete in the fourth pouring area with a vibrating rod;

(4-6) Vibrating rods are used to vibrate the concrete in the four pouring areas and the concrete flow joints between the four sides of the steel column for the second time;

(4-7) Repeat steps (4-2) to (4-6) until the height of the concrete inside the steel column is 100~150mm higher than the stiffened steel plate surface of the steel column section, and then The second complex vibration of the slab facing the concrete;

(4-8) Repeat steps (4-2) to (4-7) until the concrete height in the steel column is 10~20mm higher than the bottom surface of the steel beam.

The step (4-6) is the second vibration in which the concrete is vibrated twice. Specifically, every time the concrete is poured into the pouring area with a height of 400~500mm, the vibrating rod is inserted immediately after the string tube is pulled out to vibrate the concrete and confirm that the gas in the concrete has been completely discharged; when the four areas of the same section of the steel column are respectively The height of the concrete is 400~500mm and the vibration is completed. At this time, it is the first vibration; the second vibration is to vibrate the concrete for the second time according to the partitions on the section. At the same time, each partition on the side of the steel column The concrete flow joint position is vibrated back and forth to balance the vibration of the concrete in each area of the section, and confirm that all the gas in the concrete has been discharged.

In the step (4-7), when the height of the concrete in the shaped steel column is 100-150 mm higher than that of the stiffened steel plate in the shaped steel column, the second complex vibration is performed on the surface of the stiffened steel plate in the shaped steel column, through the In the 4 areas of the cross-section, the pouring holes on the stiffener steel plate and the concrete flow joint positions of each partition on the side of the column vibrate back and forth to balance the concrete in each area of the cross-section, and confirm that the concrete inside the square corner of the stiffened steel plate bottom of the steel column All gas has been exhausted.

During the above vibration process, due to the dislocation of the concrete pouring progress in each area, the concrete gas is first discharged from the side vent hole through the concrete level difference. Furthermore, because the concrete above the steel plate surface of the horizontal stiffener passes through the pouring hole and the opening of the flange steel plate, the flow height difference pressure on the concrete on the bottom surface of the steel plate makes the gas in the concrete at the inner corner of the steel plate bottom of the horizontal stiffener pass through the inner corner. The exhaust holes and concrete pouring holes are discharged upwards. When the horizontal stiffener steel plate does not leave an exhaust hole at the inner corner, the concrete gas can pass through the concrete level difference port from the Side discharge.

When checking whether the gas in the concrete is completely discharged, observe whether there are gas bubbles on the concrete surface during vibration, until the gas water bubbles on the concrete surface are completely discharged and disappear during vibration, and the compactness of the concrete meets the quality requirements.

The cross-section of the steel beam is "I" shape, including a top plate, a web and a bottom plate. The top plate and the bottom plate are respectively arranged on the upper and lower sides of the web. The shaped steel columns are fixedly connected, and the beam positioning corbels and shaped steel columns are used for positioning under the bottom plate.

The step (5) is specifically:

(5-1) Along the longitudinal axis of the steel beam, the section of the steel beam is longitudinally divided into two grids on the left and right, corresponding to the two sides of the "I" shape of the steel beam section;

(5-2) Punch concrete with a height of 300~400mm into the bottom edge of the first side of the shaped steel beam first, and use a vibrating rod to vibrate the concrete so that the concrete flows through the bottom of the shaped steel beam to the second side of the shaped steel beam. Side bottom edge, check and confirm that the gas in the concrete has been completely discharged, and then pound the concrete on the second side of the steel beam and vibrate, and at the same time repeat the inspection and confirm that the gas in the concrete at the bottom has been completely discharged, until the concrete on the second side The height is 100mm higher than the first side; then pour concrete into the first side of the steel beam and vibrate, and at the same time check repeatedly to confirm that all the gas in the concrete has been discharged, until the concrete height of the first side is higher than the second side 100mm;

(5-3) Use the method of high and low dislocation, alternately pour concrete into the second side and the first side and vibrate, and at the same time repeatedly check and confirm that the gas in the concrete has been completely discharged until the first side and the second side The concrete is 30mm~50mm higher than the beam surface of the shaped steel beam; repeat the vibration of the concrete and check to confirm that the gas in the concrete at the corner of the steel plate bottom of the shaped steel beam surface, the beam web and the stiffener steel plate is completely discharged. .

In the step (5), whether all the gas in the concrete is discharged is to observe whether there are gas bubbles on the surface of the concrete during vibration, until the gas and water bubbles on the surface of the concrete are completely discharged during vibration, and the compactness of the concrete Meet quality requirements.

In the step (5), the concrete pouring of the shaped steel beam is performed after the concrete pouring of the shaped steel column is completed, and then the concrete in the shaped steel column is settled after 1-1.5 hours.

The concrete pouring method of the steel-concrete composite structure of the high-rise building is mainly aimed at pouring the steel columns and the steel beams respectively. When pouring the steel columns, the steel columns are poured and vibrated in different areas by adopting the method of simultaneous pouring progress dislocation; when pouring the steel beams, the steel beams are divided into two sides for pouring and Vibrate. Utilize the dislocation height difference pressure of the concrete pouring progress in each grid, so that the gas in the concrete in the steel beam and the steel column and the gas in the square corner formed by the stiffener steel plate are completely discharged to ensure the compactness of the concrete.

Compared with the prior art, the present invention has the following beneficial effects:

The concrete pouring method used for the steel-concrete composite structure of this high-rise building is to press the section grid interval of the steel column or steel beam, and advance the dislocation of the pouring progress of each grid at the same time, and make full use of the dislocation height difference pressure of the concrete pouring progress in each grid , to effectively discharge the gas in the concrete in the steel column and the steel beam and the gas at the corner of the stiffened rib steel plate, eliminate the common quality problem of the cavity in the concrete caused by the gas in the traditional pouring method, and ensure the compactness of the concrete , Improve the construction quality of steel columns and beams. The construction technology is reasonable and convenient, the construction method is advanced, and the quality and safety of the project can be guaranteed.

Description of drawings

Fig. 1 is in this concrete pouring method, the structural representation of section steel column.

Fig. 2 is a schematic cross-sectional view of a section steel column provided with a stiffener steel plate in the concrete pouring method.

Fig. 3 is a schematic diagram of a longitudinal section of a shaped steel beam in the concrete pouring method.

Fig. 4 is a schematic diagram of the flow direction of concrete in each pouring area when the steel column is poured in the concrete pouring method.

Fig. 5 is a schematic diagram of the second re-vibration route when vibrating in each pouring area when the steel column is poured in the concrete pouring method.

Fig. 6 is a schematic diagram of the principle of pouring concrete and vibrating concrete respectively in two adjacent pouring areas of the steel column in the concrete pouring method.

Fig. 7 is a schematic diagram of the principle of the vibrating rod balancing the concrete in the four pouring areas on the slab face of the steel column stiffener steel plate in the concrete pouring method for the second re-vibration.

Fig. 8 is a schematic diagram of the principle when concrete is poured into one side of the shaped steel beam and vibrated in the concrete pouring method.

Fig. 9 is a schematic diagram of the principle of final vibration of the concrete in the steel beam in the concrete pouring method.

Detailed ways

The present invention will be further described in detail below in conjunction with the embodiments and the accompanying drawings, but the embodiments of the present invention are not limited thereto.

Example

The concrete pouring method that a kind of high-rise building steel-concrete composite structure of the present embodiment is used comprises the following steps:

(1) Install shaped steel columns, shaped steel beams, steel bars and templates;

(2) As shown in Figure 1, install the concrete pouring stringer 2 in the steel column 1;

(3) Inject cement mortar with a thickness of 50~100mm at the bottom of the steel column;

(4) According to the cross-section division of the steel column, adopt the method of shifting the pouring progress at the same time, pour concrete into the steel column through the concrete pouring string 2 according to the order of each grid, and vibrate the concrete through the vibrating rod 4 at the same time, Until the height of the concrete in the shaped steel column is 10~20mm higher than the bottom surface of the shaped steel beam; specifically:

(4-1) As shown in Figure 2, according to the cross structure, the section of the steel column is divided into 4 grids, corresponding to the 4 regions of the stiffener steel plate 3, as shown in Figure 1, two adjacent stiffener steel plate 3 The section of steel column between is divided into 4 pouring areas;

(4-2) As shown in Figure 6, for a section of steel section, first pour concrete with a height of 400~500mm into the first pouring area through the concrete pouring string 2;

(4-3) After the concrete is poured into the first pouring area, vibrate the concrete in the first pouring area with the vibrating rod 4, and at the same time pour the concrete into the second pouring area with a height of 400~500mm concrete;

(4-4) Vibrate the concrete in the second pouring area and the concrete in the third pouring area at the same time, vibrate the concrete in the third pouring area and the concrete in the fourth pouring area Simultaneously;

(4-5) After the concrete in the fourth pouring area is rammed in, vibrate the concrete in the fourth pouring area with a vibrating rod;

(4-6) Vibrating rods are used to carry out the second complex vibration of the concrete in the four pouring areas and the concrete flow joints between the four sides of the steel column;

(4-7) As shown in Figure 7, repeat steps (4-2) to (4-6) until the height of the concrete inside the steel column is 100~150mm higher than that of the steel plate with stiffeners on the section surface of the steel column. Then the concrete is vibrated for the second time on the face of the stiffened steel plate;

(4-8) Repeat steps (4-2) to (4-7) until the concrete height in the steel column is 10~20mm higher than the bottom surface of the steel beam;

In the process of steps (4-2) to (4-5), the flow direction of concrete in each pouring area when the steel column is poured is shown by the arrow in Figure 4;

In the process of step (4-6), the second vibration during the pouring of the steel column is the second complex vibration of the concrete divided by the cross-section when each section of concrete with a height of 400~500mm is poured. In each area on the side of the column Vibrate back and forth at the joint position of the concrete flow and vibrate the concrete in each area of the section to balance, and confirm that the gas in the concrete has been completely discharged, as shown in Figure 5, where 5 and its corresponding arrows are the first vibration of the second complex vibration The route of , 6 and its corresponding arrows are the route of the second vibration of the second complex vibration;

In step (4-7), when the height of the concrete inside the shaped steel column is 100-150 mm higher than the surface of the stiffened steel plate in the shaped steel column, the second complex vibration is performed on the plate surface of the stiffened steel plate. As shown in Figure 7, the pouring hole 12 of the stiffener steel plate in the four areas of the cross-section of the steel column and the concrete flow joint position of each partition on the side of the column vibrate repeatedly through the vibrating rod 4 to balance the concrete vibration in each area of the cross-section , and confirm that the gas in the concrete at the bottom corner of the steel column stiffener plate has been completely discharged.

Check whether all the gas in the concrete is discharged during vibration, by observing whether there are gas bubbles on the concrete surface, until the gas water bubbles on the concrete surface are completely discharged and disappear during vibration, and the compactness of the concrete meets the quality requirements;

(5) As shown in Figure 3, along the direction of the longitudinal axis of the shaped steel beam 7, according to the longitudinal division of the shaped steel beam, the two sides of the shaped steel beam are respectively the first side 8 and the second side 9, as shown in Figure 8 As shown, concrete with a height of 300~400mm is pounded into the bottom edge of the first side 8 of the shaped steel beam first, and the vibrating rod 4 is used to vibrate the concrete, so that the concrete flows through the bottom of the shaped steel beam to the second side of the shaped steel beam 9 bottom edge, check and confirm that all the gas in the concrete has been discharged; adopt the method of high and low dislocation, alternately pour concrete into the second side 9 and the first side 8 and vibrate, and at the same time repeatedly check and confirm that the gas in the concrete has been completely discharged until the concrete in the first side 8 and the second side 9 is 30mm~50mm higher than the beam surface steel plate surface of the shaped steel beam 13, repeat the vibration inspection of the concrete and confirm that the bottom of the shaped steel beam surface steel plate and the beam web and Until all the gas in the concrete at the corners of the squares made of stiffened steel plates has been exhausted;

The process is specifically:

(5-1) Along the longitudinal axis of the steel beam, the section of the steel beam is longitudinally divided into two grids on the left and right, corresponding to the two sides of the "I" shape of the steel beam section;

(5-2) As shown in Figure 8, first pour concrete with a height of 300~400mm into the bottom of the first side 8 of the shaped steel beam, and use a vibrating rod to vibrate the concrete to make the concrete flow through the bottom of the shaped steel beam Go to the bottom edge of the second side 9 of the shaped steel beam, check and confirm that the gas in the concrete has been completely discharged;

(5-3) Use the method of high and low dislocation, alternately pour concrete into the second side 9 and the first side 8 and vibrate, and at the same time repeatedly check and confirm that the gas in the concrete has been completely discharged until the first side 8 and the second side The concrete in side 9 is all 30mm~50mm higher than the beam surface of the shaped steel beam; Until the air in the concrete at the square corner of the web and the stiffener steel plate has been completely discharged;

When checking whether the gas in the concrete is completely discharged, it is to observe whether there are gas bubbles on the surface of the concrete during vibration, until the gas and water bubbles on the surface of the concrete are completely discharged and disappear during vibration, and the compactness of the concrete meets the quality requirements.

In the above construction method, in step (2), the concrete pouring string tube 2 is made of thin steel plate, and the diameter _D1 is about 40cm smaller than the diameter D of the pouring hole reserved on the steel column stiffener steel plate, that is, D=150～200mm, D ₁ =110～160mm. The length of the concrete pouring string can reach 4~6m, and the upper end is a funnel-shaped material inlet with a movable connection, from which the concrete can be directly poured into the string tube 2 . During operation, fasten the rings on both sides of the upper end of the string tube with a long steel wire rope, and insert the string tube 2 vertically through the reserved pouring hole 12 of the steel column stiffener steel plate to the concrete pouring position. When the column section is two to three storeys high, concrete is poured in the middle layer, and the outlet hose of the pumping concrete pump pipe can be inserted into the joint of the concrete pouring string tube 2 from the opening of the steel plate on the side flange of the steel column to pour the concrete. Put it into the skewer 2.

In step (3), the content of each component in the cement mortar is the same as the content of each component of the cement mortar contained in the concrete.

In step (4), the dislocation advancement method of simultaneous pouring progress is as follows: concrete pouring and subsequent concrete vibration are carried out in the order of the section divisions of the steel column, and the concrete pouring string 2 is pounded into the previous division of the column section Concrete, the process of vibrating the concrete through the vibrating rod 4 in the latter compartment at the same time.

The method of height dislocation described in step (5) is as follows: first, pour concrete with a height of 300~400mm into the bottom edge of the first side 8 of the shaped steel beam, and vibrate to make the concrete flow through the bottom of the shaped steel beam to the shaped steel beam. The bottom edge of the second side 9 of the beam, and confirm that the gas in the bottom concrete has been completely discharged; then pour concrete into the second side 9 of the steel beam and vibrate, and at the same time repeat the inspection and confirm that the gas in the bottom concrete has been completely discharged, Until the concrete height of the second side 9 is 100mm higher than that of the first side 8; then pour concrete into the first side 8 of the shaped steel beam and vibrate, and at the same time repeat the inspection to confirm that all the gas in the bottom concrete has been discharged, until the first side 8 The height of the concrete on the second side is 100mm higher than that on the second side; repeat the second side 9 and the first side 8 to ram the concrete in turn and vibrate until the concrete in the first side 8 and the second side 9 is higher than the steel beam The beam surface is 30mm~50mm, and finally both sides can be vibrated at the same time, and the concrete is vibrated repeatedly. Check and confirm that the gas in the concrete at the corner of the bottom of the steel beam surface, the beam web and the stiffener steel plate is completely exhausted. until discharged.

As shown in Figure 1, the middle part of the shaped steel column 1 is a cross structure 10 formed by two web steel plates perpendicular to each other, the four ends of the cross structure are respectively provided with flange steel plates 11, and the shaped steel beams are vertically connected with the flange steel plates; A plurality of stiffener steel plates 3 are arranged in the column, and each stiffener steel plate is arranged vertically to the cross structure, and concrete pouring string holes 12 are respectively reserved in the four areas divided by the cross structure.

As shown in Figure 3, the cross-section of the shaped steel beam 7 is "I" shape, including a top plate 13, a web 14 and a bottom plate 15, the top plate and the bottom plate are respectively arranged on the upper and lower sides of the web, and the upper and lower parts of the web are Bolt holes are set, and the bolt holes are fixedly connected with the steel columns by bolts, and the beam positioning brackets and the steel columns are used for positioning under the bottom plate. (Bolt holes and beam positioning corbels are not shown in the figure).

In the step (5), the concrete pouring of the shaped steel beam is performed after the concrete pouring of the shaped steel column is completed, and then the concrete in the shaped steel column is settled after 1-1.5 hours.

The concrete pouring method of the steel-concrete composite structure of the high-rise building is mainly aimed at pouring the steel columns and the steel beams respectively. When pouring the steel columns, the steel columns are poured and vibrated in different areas by dislocation of the pouring progress at the same time; when the steel beams are poured, the steel beams are divided into two sides for high and low displacement by longitudinal division Pouring and vibrating. In this way, the gas at the corners of the shaped steel beams and shaped steel columns can be completely discharged to ensure the compactness of the concrete.

As mentioned above, the present invention can be better realized. The above-mentioned embodiment is only a preferred embodiment of the present invention, and is not used to limit the scope of the present invention; Covered by the scope of protection required by the claims of the present invention.

Claims (9)

1. the concreting method used of highrise building reinforced concrete composite structure is characterized in that, may further comprise the steps:

(1) mount type steel column, section steel beam, reinforcing bar and template;

(2) the concreting tumbling barrel is installed in steel column;

(3) go into the cement mortar that thickness is 50～100mm in the post rising pouring of steel column;

(4) according to the cross section lattice of steel column; Adopt and build the mode that the progress dislocation advances simultaneously; In steel column, smash into concrete through the concreting tumbling barrel by each minute case order; Through vibrating head concrete is vibrated simultaneously, the bottom surface of the concrete aspect ratio section steel beam in steel column exceeds till 10～20mm;

(5) along the longitudinal axis of section steel beam; Press vertical lattice of section steel beam; The both sides of section steel beam are respectively first side and second side, smash earlier into highly being the concrete of 300～400mm on the base of first side of section steel beam, and employing vibrating head vibrated concrete; Make concrete flow to the second side base of section steel beam through the bottom of section steel beam, the gas of reviewing and validate in the concrete is all discharged;

Adopt the mode of high infraversion malposition; Alternately in second side and first side, smash into concrete and vibration; Rechecking simultaneously also confirms that the gas in the concrete all discharges, and the concrete in first side and second side all exceeds till the beam face 30mm～50mm of section steel beam.

2. the concreting method of using according to the said highrise building reinforced concrete composite structure of claim 1 is characterized in that, described in the step (3) in the cement mortar content of each composition identical with the content of contained each composition of cement mortar in the concrete.

3. the concreting method of using according to the said highrise building reinforced concrete composite structure of claim 1; It is characterized in that; Building the mode that the dislocation of progress advances described in the step (4) simultaneously is: according to cross section each minute case order of steel column, in a lattice, smash concrete through the concreting tumbling barrel and in another lattice, through vibrating head the technology that concrete vibrates is carried out simultaneously.

4. the concreting method of using according to the said highrise building reinforced concrete composite structure of claim 1; It is characterized in that; The mode of high infraversion malposition is described in the step (5): smash on the first side base of section steel beam earlier into highly being the concrete of 300～400mm; And vibrate concrete is flowed to the second side base of section steel beam, the gas of reviewing and validate in the concrete of bottom is all discharged; Smash into concrete and vibration in second side of section steel beam then, rechecking simultaneously also confirms that the gas in the concrete of bottom all discharges, and exceeds 100mm until concrete aspect ratio first side of second side; Smash into concrete and vibration in first side of section steel beam, rechecking simultaneously also confirms that the gas in the concrete all discharges again, and exceeds 100mm until concrete aspect ratio second side of first side; Repetition is smash into concrete and vibration in second side and first side wheel stream; Concrete in first side and second side all exceeds the beam face 30mm～50mm of section steel beam; Repeat vibratory concrete, till reviewing and validate gas in the synthetic square inner corner trim place concrete of section steel beam face steel plate bottom and web and stiffening rib steel plate and all discharging;

In the said step (5); When whether the gas in the inspection concrete all discharges; Whether also have the gas bubble to occur through when vibrating, observing concrete surface, till clean disappearance of gas water vapor bubbles discharge of concrete surface, concrete compactness reaches quality requirement up in vibration the time.

5. the concreting method of using according to the said highrise building reinforced concrete composite structure of claim 1; It is characterized in that; Said steel column middle part is the vertical each other cross structures that constitute of 2 abdomen steel plates; 4 ends of cross structure are provided with edge of a wing steel plate respectively, and section steel beam is connected with edge of a wing steel plate is vertical; Be provided with a plurality of stiffening rib steel plates in the steel column, each stiffening rib steel plate is vertical with cross structure respectively to be provided with, and is reserved with concreting tumbling barrel hole respectively in 4 zones that cross structure is divided into stiffening rib steel plate.

6. the concreting method of using according to the said highrise building reinforced concrete composite structure of claim 5 is characterized in that, said step (4) is specially:

(4-1) according to cross structure, the cross section of steel column is divided into 4 lattice, and is corresponding with a zone of stiffening rib steel plate respectively, is divided into 4 in the shaped steel shell of column between adjacent two stiffening rib steel plates and builds the zone;

(4-2) to a shaped steel shell of column, build the zone through the concreting tumbling barrel to first earlier and smash into highly being the concrete of 400～500mm;

After (4-3) first is built and smashes concrete in the zone, first concrete of building in the zone is vibrated, build the zone through the concreting tumbling barrel to second simultaneously and smash into highly being the concrete of 400～500mm through vibrating head;

(4-4) vibrate second build the zone in concrete with smash into the 3rd build the zone in concrete carry out simultaneously, vibrate the 3rd build the zone in concrete with smash into the 4th build the zone in concrete carry out simultaneously;

After (4-5) the 4th concrete of building in the zone smash completion, the 4th concrete of building in the zone vibrated through vibrating head;

(4-6) respectively four concrete of building the mobile junction of concrete between zone and each district, four sides of steel column are carried out secondary vibration through vibrating head;

(4-7) repeating step (4-2) is to (4-6), and the stiffening rib steel plate plate face of the concrete aspect ratio shaped steel shell of column face in steel column exceeds till 100～150mm, faces concrete multiplex vibration for the second time at the plate of stiffening rib steel plate then;

(4-8) repeating step (4-2) is to (4-7), and the bottom surface of the concrete aspect ratio section steel beam in steel column exceeds till 10～20mm.

7. the concreting method of using according to the said highrise building reinforced concrete composite structure of claim 1; It is characterized in that the cross section of said section steel beam is " worker " font, comprises top board, web and base plate; Top board and base plate are located at the both sides up and down of web respectively; The upper and lower of web is provided with bolt hole, and the bolt hole place is fixedly connected with steel column through bolt, and floor below positions through beam location bracket and steel column.

8. the concreting method of using according to the said highrise building reinforced concrete composite structure of claim 7 is characterized in that, said step (5) is specially:

(5-1) along the longitudinal axis of section steel beam, the cross section of section steel beam vertically is divided into 2 lattice, and is corresponding with " worker " font two side areas in section steel beam cross section respectively;

(5-2) smash earlier into highly being the concrete of 300～400mm on the first side base of section steel beam; And employing vibrating head vibrated concrete; Make concrete flow to the second side base of section steel beam through the bottom of section steel beam, the gas of reviewing and validate in the concrete of bottom is all discharged;

(5-3) mode of the high infraversion malposition of employing; Alternately in second side and first side, smash into concrete and vibration; Rechecking simultaneously also confirms that the gas in the concrete all discharges; Concrete in first side and second side all exceeds till the beam face 30mm～50mm of section steel beam, till repeating concrete vibrating and inspection confirmed that gas in the synthetic square inner corner trim place concrete of section steel beam face steel plate bottom and web and stiffening rib steel plate is all discharged.

9. the concreting method of using according to the said highrise building reinforced concrete composite structure of claim 1; It is characterized in that; In the said step (5); The concreting of section steel beam is after the concreting of steel column is accomplished, and after treating the heavy reality of steel column inner concrete in 1～1.5 hour, carries out again.

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