CN-122013933-A - Assembled square corrugated steel-concrete combined column and construction method

CN122013933ACN 122013933 ACN122013933 ACN 122013933ACN-122013933-A

Abstract

The invention provides an assembled square corrugated steel-concrete composite column and a construction method, wherein the assembled square corrugated steel-concrete composite column comprises a square corrugated steel plate assembly, the square corrugated steel plate assembly comprises a plurality of sections of assembly units which are sequentially arranged from top to bottom, each assembly unit comprises four corrugated steel plate members, each corrugated steel plate member comprises a corrugated steel plate, grouting corner pieces welded on the left side and the right side of each corrugated steel plate, square steel assemblies welded on the upper end and the lower end of each corrugated steel plate, and connecting plugboards for connecting the grouting corner pieces of two adjacent corrugated steel plate members, each grouting corner piece is provided with a connecting flat plate part, each connecting plugboard is connected with each connecting flat plate part of two grouting corner pieces in an inserting way, and the connecting flat plate parts of the two grouting corner pieces are attached and aligned to form a complete attaching surface.

Inventors

CHEN XUEPENG
WANG YUYIN
YANG HUA
ZHANG HUAN
GENG YUE
Su Andi
FANG YONG
CHEN CHENG

Assignees

哈尔滨工业大学

Dates

Publication Date: 20260512
Application Date: 20260214

Claims (10)

1. The assembled square corrugated steel-concrete composite column is characterized by comprising a square corrugated steel plate component (1) and first filling concrete (2) and second filling concrete (3) which are poured in the square corrugated steel plate component (1), wherein the square corrugated steel plate component (1) comprises a plurality of sections of component units which are sequentially arranged from top to bottom, the first filling concrete (2) and the second filling concrete (3) comprise concrete sections which are respectively corresponding to the sections of the component units and are formed by casting in a sectionalized mode, the component units comprise four corrugated steel plate components (11), the corrugated steel plate components (11) comprise corrugated steel plates (111), grouting corner pieces (112) welded at the left side and the right side of the corrugated steel plates (111), square steel components welded at the upper end and the lower end of the corrugated steel plates (111) and connecting plugboards (115) for connecting grouting corner pieces (112) of two adjacent corrugated steel plate components (11), the connecting plugboards (112) are provided with connecting flat plate parts, the connecting flat plate parts of the two grouting corner pieces (112) are connected in a plug-in plug mode, the connecting flat plate parts of the two grouting corner pieces (112) can be matched with each other in a matching mode, and the upper side and lower side of the square steel plates (112) can be matched with each other in a filling corner piece (114), the second filling concrete (3) is filled in a square cavity formed by enclosing the multi-section assembly units.
2. The fabricated square corrugated steel-concrete composite column according to claim 1, wherein the cross section of the grouting corner fitting (112) is isosceles right triangle, the corrugated steel plate (111) is connected with the right-angle side of the grouting corner fitting (112), and the hypotenuse of the grouting corner fitting (112) is a connecting flat plate part.
3. The fabricated square corrugated steel-concrete composite column according to claim 1, wherein the oblique side of the grouting corner fitting (112) is provided with an insertion through hole penetrating up and down, the cross section of the connection plugboard (115) is in an i shape, the connection plugboard (115) comprises a wing plate and a web plate, the thickness of the web plate is the same as the width of the insertion through hole, and the width of the web plate is the same as the total thickness of the connection flat plate parts of the two grouting corner fittings (112) aligned in a fitting manner.
4. The fabricated square corrugated steel-concrete composite column according to claim 1, wherein the outer wall size of the square steel member (113) is matched with the inner cavity size of the n-shaped plate member (114), a retaining strip portion (1141) is arranged on the inner side of the opening portion of the inner cavity of the n-shaped plate member (114), and chamfer portions which are convenient for the square steel member (113) to be inserted into the inner cavity of the n-shaped plate member (114) are arranged on the retaining strip portion (1141) and the insertion end of the square steel member (113).
5. The assembled square corrugated steel-concrete combined column according to claim 1, wherein the outer wall of the square steel part (113) is matched with the inner cavity of the n-shaped plate part (114), the square steel part (113) comprises square steel and a plurality of elastic clamping column assemblies, each elastic clamping column assembly is sequentially arranged along the length direction of the square steel, each elastic clamping column assembly comprises a clamping column (1131), a mounting seat (1132) and a spring (1133), the spring (1133) is horizontally arranged between the clamping column (1131) and the mounting seat (1132), guide through holes corresponding to the clamping columns (1131) of each elastic clamping column assembly one by one are formed in the side wall of the square steel part (113), the clamping columns (1131) penetrate through the guide through holes, limiting structures (1134) for preventing the clamping columns (1131) from completely penetrating through the guide through holes are formed in the clamping columns (1131), one side wall of the n-shaped plate part (114) is provided with a limiting structure (1134), the clamping columns (1131) corresponding to the elastic clamping assemblies one by one, and the elastic clamping columns (1132) are inserted into the guide through holes (114one by one, and the elastic clamping columns (1132) are inserted into the guide through holes (113) in the preset positions corresponding to the steel plate part (114).
6. The fabricated square corrugated steel-concrete composite column according to claim 5, wherein the spring (1133) is located in square steel, the mounting base (1132) is mounted on the side wall of the other side of the square steel, which is not provided with a guide through hole, positioning structures matched with the spring (1133) are arranged on opposite end faces of the mounting base (1132) and the clamping column (1131), the positioning structures are positioning protrusions or positioning grooves, and the limiting structures (1134) are anti-falling screws mounted on the clamping column (1131) in a threaded mode.
7. The fabricated square corrugated steel-concrete composite column according to claim 6, wherein the guiding through hole is matched with the cross section of the clamping column (1131), the guiding through hole is a non-cylindrical through hole, an inclined surface (11311) is arranged at the outer end of the clamping column (1131), the inclined direction of the inclined surface (11311) is consistent with the direction of inserting the square steel piece (113) into the n-shaped plate piece (114), and the inclined surface is used for forming guiding extrusion with the cavity port of the n-shaped plate piece (114) in the inserting process, so that the clamping column (1131) automatically compresses the spring (1133) to retract into the guiding through hole when the square steel piece (113) is inserted into the n-shaped plate piece (114).
8. A fabricated square corrugated steel-concrete composite column according to any one of claims 1 to 7, wherein the corrugated steel plate member (11) further comprises a guide pin plate (116) for guiding the grouting angle (112) connecting two adjacent upper and lower assembly units, one end of the guide pin plate (116) is fixed at the lower end opening of the grouting angle (112) of the upper assembly unit, and the other end is insertable into the upper end opening of the grouting angle (112) of the lower assembly unit, and the outer wall of the guide pin plate (116) is attached to at least two adjacent inner walls of the grouting angle (112).
9. A construction method of an assembled square corrugated steel-concrete composite column, which is used for the assembled square corrugated steel-concrete composite column as claimed in claim 8, and is characterized by comprising the following steps: S100, preparing a corrugated steel plate member (11) through factory prefabrication; s200, assembling a first section of assembly unit, namely lifting four corrugated steel plate members (11) to a construction station, and connecting the four corrugated steel plate members (11) into a complete assembly unit through four connecting plugboards (115); s300, performing concrete construction on the first section of assembly units, namely pouring first filling concrete (2) into the inner cavity of each grouting corner fitting (112) of the first section of assembly units, curing until the strength is more than 70% of the design strength, and pouring second filling concrete (3) into the square cavity surrounded by the first section of assembly units; S400, lifting and butting the second-section assembly units, namely lifting each corrugated steel plate member (11) of the second-section assembly unit to the position right above the first-section assembly unit, enabling a guide plugboard (116) at the lower end of a grouting corner fitting (112) of the second-section assembly unit to be aligned with an opening at the upper end of the grouting corner fitting (112) of the first-section assembly unit, slowly inserting the second-section assembly unit, realizing accurate alignment of the upper assembly unit and the lower assembly unit, and simultaneously enabling a square steel member (113) or an n-shaped plate member (114) of the second-section assembly unit to be aligned with an n-shaped plate member (114) or a square steel member (113) of the first-section assembly unit, and completing vertical fixation through an anti-falling fit structure of the second-section assembly unit and the first-section assembly unit; S500, performing concrete construction on the second section assembly units, namely repeating the operation of the step S300, firstly pouring first filling concrete (2) into the inner cavity of each grouting corner fitting (112) of the second section assembly units, curing until the strength is more than 70% of the design strength, and then pouring second filling concrete (3) into the square cavity surrounded by the second section assembly units; s600, repeating the construction steps S400-S500, and sequentially completing the installation and the concrete construction of the subsequent assembly units.
10. The construction method of the fabricated square corrugated steel-concrete composite column is characterized in that the first filling concrete (2) adopts early strength grouting material, and is injected at a constant speed along an upper end opening of a grouting corner fitting (112) through a grouting funnel during grouting, the second filling concrete (3) can be planted with longitudinal steel bars and stirrups according to design requirements before casting, and is bound and formed, and an inserted vibrator is adopted for layered vibration in the casting process, wherein the vibration depth of each layer is not more than 500mm, and the vibration is carried out until the surface of the concrete is general in grouting and no obvious sinking exists; And the method further comprises the step of S700 of integrally curing and forming, wherein after all concrete construction is completed, the combined column is subjected to integrally covering and moisture-preserving curing, the curing period is adjusted according to the ambient temperature, the first filling concrete (2) and the second filling concrete (3) are ensured to reach the design strength, and the combined column construction is completed.

Description

Assembled square corrugated steel-concrete combined column and construction method Technical Field The invention relates to the technical field of constructional engineering, in particular to an assembled square corrugated steel-concrete combined column and a construction method. Background In the field of constructional engineering, the steel plate-concrete combined column structure becomes a core member for improving the bearing capacity, stability and anti-seismic performance of a structure by virtue of the synergistic stress advantage of steel and concrete, and is widely applied to important engineering such as high-rise buildings, large-span workshops, bridge pier columns and the like. The corrugated side plate-square steel tube concrete column is an improved combined column form, a square steel tube shell is formed by welding corrugated steel plates, concrete is poured into the tube, lateral deformation of the concrete is limited by the lateral restraining effect of the corrugated side plate, and compressive strength and ductility of the concrete are remarkably improved. Meanwhile, the concrete is filled in the square steel tube, so that the local buckling of the corrugated side plates is effectively avoided, the tensile and shearing advantages of the steel are fully exerted, and the structural stress performance is optimized through the cooperative work of the corrugated side plates and the steel. However, the prior corrugated side plate-square steel tube concrete column still has some technical defects in practical application. Firstly, in the aspect of member processing and construction, the square steel tube shell of the traditional corrugated side plate-square steel tube concrete column is required to be subjected to cutting, splicing and welding operation of corrugated steel plates on a construction site, the site construction process is complicated, the labor intensity is high, the welding quality is difficult to guarantee due to factors such as weather conditions, technical level differences of site constructors and the like, the defects of uncompacted welding seams, cracks and the like are easy to occur, the safety of a column structure is influenced, the construction efficiency is low, and the requirement of industrial rapid construction of a building cannot be met. In the aspect of connection node design, when the column body needs to be subjected to sectional construction, the sectional connection of the existing corrugated side plate-square steel pipe concrete column adopts a flange connection or field welding butt joint mode, the flange connection has the problems of high cost and complex construction, and the field welding butt joint has the quality control difficulty same as that of the whole square steel pipe welding. Disclosure of Invention The invention aims to provide an assembled square corrugated steel-concrete combined column and a construction method thereof, so as to solve the problems of complicated field construction procedures, high control difficulty of welding quality control, insufficient sectional connection reliability and low construction efficiency of the conventional corrugated side plate-square steel tube concrete column. The invention is realized in the following way: According to the first aspect of the invention, the assembled square corrugated steel-concrete composite column comprises a square corrugated steel plate assembly and first filling concrete and second filling concrete poured in the square corrugated steel plate assembly, wherein the square corrugated steel plate assembly comprises a plurality of sections of assembly units which are sequentially arranged from top to bottom, the first filling concrete and the second filling concrete comprise concrete sections which are respectively corresponding to the sections of assembly units and are formed by casting in a sectioning mode, the assembly units comprise four corrugated steel plate members, each corrugated steel plate member comprises a corrugated steel plate, grouting corner pieces welded on the left side and the right side of the corrugated steel plate, square steel assemblies welded on the upper end and the lower end of the corrugated steel plate and connecting plugboards for connecting the grouting corner pieces of the two adjacent corrugated steel plate members, each grouting corner piece is provided with a connecting flat plate part, the connecting plugboards are connected with the connecting flat plate parts of the two grouting corner pieces in a plugging mode, the connecting flat plate parts of the two grouting corner pieces are aligned to form a complete joint face, each square steel piece and n-shaped plate members which can be mutually plugged and matched and can be prevented from being separated from top and bottom, and square filling concrete filling corner pieces are filled in each square filling concrete filling cavity. Further, the cross section of the grouting angle piece is isosceles r