CN111677172A - Steel-concrete combined structure plate column structure system - Google Patents

Steel-concrete combined structure plate column structure system Download PDF

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Publication number
CN111677172A
CN111677172A CN202010496358.3A CN202010496358A CN111677172A CN 111677172 A CN111677172 A CN 111677172A CN 202010496358 A CN202010496358 A CN 202010496358A CN 111677172 A CN111677172 A CN 111677172A
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steel
concrete
plate
column
double
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CN202010496358.3A
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Chinese (zh)
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CN111677172B (en
Inventor
路冰
李爽
毛小勇
刘聪
李想
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Suzhou University of Science and Technology
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Suzhou University of Science and Technology
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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/43Floor structures of extraordinary design; Features relating to the elastic stability; Floor structures specially designed for resting on columns only, e.g. mushroom floors
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/38Connections for building structures in general
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/38Connections for building structures in general
    • E04B1/40Separate connecting elements
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62Insulation or other protection; Elements or use of specified material therefor
    • E04B1/92Protection against other undesired influences or dangers
    • E04B1/98Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04CSTRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00Structural elongated elements designed for load-supporting
    • E04C3/30Columns; Pillars; Struts
    • E04C3/34Columns; Pillars; Struts of concrete other stone-like material, with or without permanent form elements, with or without internal or external reinforcement, e.g. metal coverings
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04HBUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H9/00Buildings, or groups of buildings, or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake, extreme climate
    • E04H9/02Buildings, or groups of buildings, or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake, extreme climate withstanding earthquake or sinking of ground
    • E04H9/021Bearing, supporting or connecting constructions specially adapted for such buildings

Abstract

The invention discloses a steel-concrete combined structure plate column structure system, and aims to solve the problem that the traditional plate column node is weak in mechanical property. The steel-concrete composite structure plate column structure system comprises a double steel plate-concrete beamless floor and a steel tube concrete column, wherein the double steel plate-concrete beamless floor comprises two steel plates, a concrete layer and a shear connector, the steel tube concrete column is formed by pouring a concrete column in a steel tube, a hole is formed in the double steel plate-concrete beamless floor at the connecting node of the plate column, four T-shaped steel beams are uniformly arranged on the circumference of the hole, the T-shaped steel beams are arranged along the thickness direction of the hole, four inverted T-shaped steel beams are uniformly arranged on the circumference of the steel tube concrete column, and the inverted T-shaped steel beams are lapped with the T-shaped steel beams and connected through bolts. The invention not only gives play to the superiority of the mechanical property of the double-steel-plate-concrete combined structure and the steel pipe concrete combined structure, but also can carry out modular construction on the plate column member.

Description

Steel-concrete combined structure plate column structure system
Technical Field
The invention relates to a steel-concrete composite structure plate column structure.
Background
The slab-column structural system is a building structural system taking a beamless floor slab and a column as bearing components, and is widely applied to building structures due to the characteristics of high clearance height, flexible planar arrangement, construction formwork support and the like. At present, the structural types of the beamless floor in the plate column structure mainly include reinforced concrete beamless floors and prestressed concrete beamless floors. The thickness of the reinforced concrete beamless floor slab is generally higher, the self weight is not beneficial to earthquake resistance, the environment is cooled down and the concrete shrinks to cause cracks, and the corresponding construction cost is obviously improved in consideration of the requirement of the underground building on waterproofness. The prestressed concrete beamless floor slab can effectively solve the problem of concrete cracking. However, the construction cost of the prestressed concrete structure is high, and the construction difficulty of the prestressed concrete girderless floor is increased by the problem of the loss of the prestress. In addition, due to the adoption of high-strength steel, the ductility and the energy consumption capability of the prestressed concrete structure are low, and the earthquake reaction is large. In 2010, the American West House company adopts a double-steel-plate-concrete combined structure form in the design of the third generation AP1000 nuclear power station containment vessel for the first time. The double-steel-plate-concrete combined structure consists of steel plates on two sides, core concrete and a shear connector. Compared with the prestressed concrete containment, the ductility and the energy consumption capability of the double-steel-plate concrete combined containment are obviously improved, and the anti-seismic performance and the anti-impact capability are obviously improved. Meanwhile, the steel plate can save the concrete formwork supporting process, reduce the construction period, save the construction cost, provide better tightness and effectively prevent the nuclear waste from leaking.
In 1985, 91 board-column structural buildings in Mexico earthquake suffered damages of different degrees, and the main earthquake damage is represented by large lateral displacement of the whole structure, serious column shearing damage and punching damage of board-column joints. The slab-column node is the weak point of the slab-column structure and is also the key point for improving the seismic performance of the slab-column structure system. Therefore, researchers at home and abroad propose a plate column node form adopting a steel tube concrete column to replace the traditional reinforced concrete column. The steel pipe concrete structure consists of peripheral steel pipes and core concrete. Because the steel pipe restricts the concrete and the concrete restricts the steel pipe, the bearing capacity, the ductility and the energy consumption capability of the member can be greatly improved. Meanwhile, the peripheral steel pipe can also be used as a temporary template for pouring concrete, so that the construction cost is effectively saved.
Disclosure of Invention
The invention aims to solve the problem of weak mechanical property at the node of the traditional plate column, and provides a steel-concrete combined structure plate column structure system.
The steel-concrete composite structure plate column structure system comprises a double steel plate-concrete beamless floor and a steel tube concrete column, wherein the double steel plate-concrete beamless floor comprises two steel plates, a concrete layer and a shear connector, the two steel plates are arranged oppositely, a plurality of shear connectors are connected between the two steel plates, and a concrete layer is poured between the two steel plates to form the double steel plate-concrete beamless floor;
the concrete-filled steel tube column is formed by pouring a concrete column in a steel tube;
at the joint of the double-steel-plate concrete girderless floor slab and the steel tube concrete column, an opening is formed in the double-steel-plate concrete girderless floor slab, four T-shaped steel beams are uniformly arranged on the circumferential direction of the opening and arranged along the thickness direction of the opening, four inverted T-shaped steel beams are uniformly arranged on the circumferential direction of the steel tube concrete column and are in lap joint with the T-shaped steel beams and are connected through bolts, and concrete is poured in the opening of the double-steel-plate concrete girderless floor slab to form a slab-column joint.
The invention combines the characteristic of excellent anti-seismic performance of a double-steel-plate-concrete combined structure and a steel pipe concrete combined structure, and the invention provides a novel plate column structure system which takes a double-steel-plate-concrete beamless floor slab and a steel pipe concrete column as bearing members in view of the current situation that the anti-seismic performance of the traditional plate column node is weak. The punching failure of the plate column node is the main reason of weak seismic performance of the plate column structure. The steel pipe concrete column replaces a reinforced concrete column, and the lateral movement resistance of the plate column joint can be effectively improved due to the constraint effect of the steel pipe on the concrete. The double steel plate-concrete beamless floor slab is adopted to replace a reinforced concrete beamless floor slab, and the anti-cutting performance of the slab-column joint can be obviously enhanced by considering the continuity and the tightness of the steel plates. Therefore, the invention can greatly improve the seismic performance of the plate column structure system.
The assembled steel-concrete composite structure plate-column structure system comprises double steel plates, concrete beamless floor slabs and steel tube concrete columns, wherein the beamless floor slabs and the steel tube concrete columns are connected through plate-column joints, and plate splicing is carried out between the beamless floor slabs. The invention has the advantages that the invention not only exerts the superiority of the mechanical property of the double-steel-plate-concrete composite structure and the steel pipe concrete composite structure, but also can carry out modular construction on the plate column member and carry out the assembled connection between the plate column node and the plate.
Drawings
FIG. 1 is a schematic view of a structure at an opening of a double steel plate-concrete girderless floor;
FIG. 2 is a schematic structural view of a concrete filled steel tubular column;
FIG. 3 is a schematic structural diagram of a plate-column joint connection in a steel-concrete composite structure plate-column structural system;
FIG. 4 is a detail view of a panel-to-column joint connection;
FIG. 5 is a schematic structural view of a first non-girder floor slab according to a fifth embodiment;
fig. 6 is a schematic structural view of a second girderless floor according to a fifth embodiment;
FIG. 7 is a schematic structural diagram of plate-plate splicing in a steel-concrete composite structural plate-column structural system;
FIG. 8 is a detailed structure diagram of the connection of the joint of the plate and the slab;
FIG. 9 is a floor plan of a steel-concrete composite structural slab-column structural system;
fig. 10 is a perspective view of a steel-concrete composite structural plate column structural system.
Detailed Description
The first embodiment is as follows: the steel-concrete composite structure plate-column structure system comprises a double-steel-plate concrete beamless floor 1 and a steel tube concrete column 2, wherein the double-steel-plate concrete beamless floor 1 consists of two steel plates 1-1, a concrete layer 1-2 and shear connectors 1-3, the two steel plates 1-1 are oppositely arranged, a plurality of shear connectors 1-3 are connected between the two steel plates 1-1, and the concrete layer 1-2 is poured between the two steel plates 1-1 to form the double-steel-plate concrete beamless floor 1;
the concrete-filled steel tube column 2 is formed by pouring a concrete column 2-2 in a steel tube 2-1;
at the joint of the double-steel-plate concrete girderless floor 1 and the steel tube concrete column 2, a hole is formed in the double-steel-plate concrete girderless floor 1, four T-shaped steel beams 3 are uniformly arranged on the circumferential direction of the hole, the T-shaped steel beams 3 are arranged along the thickness direction of the hole, four inverted T-shaped steel beams 4 are uniformly arranged on the circumferential direction of the steel tube concrete column 2, the inverted T-shaped steel beams 4 are in lap joint with the T-shaped steel beams 3 and are connected through bolts, and concrete is poured into the hole of the double-steel-plate concrete girderless floor 1 to form a plate column joint.
The second embodiment is as follows: the difference between the embodiment and the specific embodiment is that the steel tube 2-1 of the steel tube concrete column 2 is a square tube, and four inverted T-shaped steel beams 4 are uniformly arranged on the outer surface of the square tube.
The third concrete implementation mode: the difference between the second embodiment and the second embodiment is that a rectangular hole is formed in the joint of the double-steel-plate concrete girderless floor 1 and the steel pipe concrete column 2, an L-shaped template 5 is arranged at the right angle of the lower surface of the rectangular hole, and a gap formed between every two adjacent L-shaped templates 5 is matched with the horizontal steel plate of the inverted-T-shaped steel beam 4 to form a concrete pouring template.
In the embodiment, the steel tube concrete column is inserted into the rectangular opening of the double-steel-plate concrete beamless floor slab, and the L-shaped template in the opening is matched with the inverted T-shaped steel beam on the steel tube concrete column to form the concrete pouring template.
The fourth concrete implementation mode: the difference between this embodiment and the first to third embodiments is that the inverted T-shaped steel beam 4 and the T-shaped steel beam 3 are connected by a plurality of bolts, and the plurality of bolts are arranged in a rectangular array.
The fifth concrete implementation mode: the difference between the present embodiment and one of the first to fourth embodiments is that at the connection node between the first double steel plate-concrete girderless floor and the second double steel plate-concrete girderless floor, the lower steel plate 1-1 of the connection end surface of the first double steel plate-concrete girderless floor extends out of the outer edge 1-4, a plurality of inverted T-shaped steel beams 4 are arranged at intervals on the outer edge 1-4, a plurality of T-shaped steel beams 3 are arranged at intervals on the connection end surface of the second double steel plate-concrete girderless floor, and the T-shaped steel beams 3 of the second double steel plate-concrete girderless floor are overlapped with the inverted T-shaped steel beams 4 of the first double steel plate-concrete girderless floor and are connected by a plurality of bolts.
The sixth specific implementation mode: the difference between this embodiment and the fifth embodiment is that a plurality of bolts connecting the T-shaped steel beam 3 and the inverted T-shaped steel beam 4 are arranged in a rectangular array.
The seventh embodiment: the fifth embodiment is different from the fifth embodiment in that concrete is poured at the joint of the first double steel plate-concrete flat slab and the second double steel plate-concrete flat slab.
Example (b): the steel-concrete composite structure plate column structure system comprises a double steel plate-concrete beamless floor 1 and a steel tube concrete column 2, wherein the double steel plate-concrete beamless floor 1 comprises two steel plates 1-1, a concrete layer 1-2 and shear connectors 1-3, the two steel plates 1-1 are oppositely arranged, a plurality of shear connectors 1-3 are connected between the two steel plates 1-1, and the concrete layer 1-2 is poured between the two steel plates 1-1 to form the double steel plate-concrete beamless floor 1;
the concrete-filled steel tube column 2 is formed by pouring a concrete column 2-2 in a steel tube 2-1;
at the joint of the double-steel-plate concrete beamless floor 1 and the steel tube concrete column 2, a hole is formed in the double-steel-plate concrete beamless floor 1, four T-shaped steel beams 3 are uniformly welded on the circumferential direction of the hole, the T-shaped steel beams 3 are arranged along the thickness direction of the hole, four inverted T-shaped steel beams 4 are uniformly welded on the circumferential direction of the steel tube concrete column 2, the inverted T-shaped steel beams 4 are lapped with the T-shaped steel beams 3 and are connected through bolts, and concrete is poured in the hole of the double-steel-plate concrete beamless floor 1 to form a plate column joint;
at the connecting node of the adjacent first double steel plate-concrete girderless floor and the second double steel plate-concrete girderless floor, the lower steel plate 1-1 of the connecting end surface of the first double steel plate-concrete girderless floor extends out of the outer edge 1-4, a plurality of inverted T-shaped steel beams 4 are welded on the outer edge 1-4 at intervals, a plurality of T-shaped steel beams 3 are welded on the connecting end surface of the second double steel plate-concrete girderless floor at intervals, the T-shaped steel beams 3 of the second double steel plate-concrete girderless floor are lapped with the inverted T-shaped steel beams 4 of the first double steel plate-concrete girderless floor and are connected through a plurality of bolts, and the plurality of bolts are arranged in a rectangular array.
The double-steel-plate concrete beamless floor slab comprises two side steel plates, core concrete and a shear connector. The steel tube concrete column consists of an outer steel tube and core concrete. The connection mode of the steel pipe concrete column is as required in the technical Specification for steel pipe concrete structures (GB 50936-.
This embodiment plate column node adopts assembled connected mode, and wherein, the steel core concrete column welds the type of falling T girder steel outward, and the opening is opened to the no beam floor of steel core concrete, and entrance to a cave inner wall welding type of T girder steel. When the steel pipe concrete column is installed, the inverted T-shaped steel beam is connected with a web plate of the T-shaped steel beam through bolts, the steel pipe concrete column and the double steel plates-concrete beamless floor are temporarily fixed, then the steel plate steel pipe concrete column and the double steel plates-concrete beamless floor lower steel plates (including an L-shaped template and steel plates on the beamless floor) are welded, finally, concrete is poured, and the steel pipe concrete column is connected with the double steel plates-concrete beamless floor upper steel plates through splicing steel plates. A schematic diagram of a board-column node assembly type connection mode of the novel board-column structure system is shown in FIG. 3. The detailed view of the plate column node of the novel plate column structure system is shown in fig. 4.
The slab plates of the embodiment are spliced in an assembly mode, inverted T-shaped steel beams are welded on the outer edges of the slab plates, and adjacent double steel plates and concrete beam-free floor slabs are temporarily fixed through bolts. The plate-column structure system plate-plate splicing mode is schematically shown in fig. 7. The detailed view of the plate-plate splicing node of the plate-column structural system is shown in fig. 8.
The plane layout of the plate-plate splicing nodes in the plate-column structural system of the embodiment is shown in fig. 9. Two splicing nodes are required to be arranged at the center of the plate edge and the plate corner, so that the reliability of plate-plate connection is improved. Splicing nodes need to be arranged between the center of each plate edge and each plate corner at equal intervals. The three-dimensional structure diagram of the steel-concrete composite structure plate column structure system is shown in fig. 10.

Claims (7)

1. The steel-concrete composite structure plate-column structure system is characterized by comprising a double-steel-concrete beamless floor (1) and a steel tube concrete column (2), wherein the double-steel-concrete beamless floor (1) consists of two steel plates (1-1), a concrete layer (1-2) and shear connectors (1-3), the two steel plates (1-1) are oppositely arranged, a plurality of shear connectors (1-3) are connected between the two steel plates (1-1), and the concrete layer (1-2) is poured between the two steel plates (1-1) to form the double-steel-concrete beamless floor (1);
the concrete-filled steel tube column (2) is formed by pouring a concrete column (2-2) in a steel tube (2-1);
at the joint of the double-steel-plate concrete girderless floor (1) and the steel tube concrete column (2), an opening is formed in the double-steel-plate concrete girderless floor (1), four T-shaped steel beams (3) are uniformly arranged on the circumferential direction of the opening, the T-shaped steel beams (3) are arranged along the thickness direction of the opening, four inverted T-shaped steel beams (4) are uniformly arranged on the circumferential direction of the steel tube concrete column (2), the inverted T-shaped steel beams (4) are in lap joint with the T-shaped steel beams (3) and are connected through bolts, and concrete is poured into the opening of the double-steel-plate concrete girderless floor (1) to form a plate column joint.
2. A steel-concrete composite structural slab column structural system according to claim 1, wherein the steel pipes (2-1) of the steel pipe concrete column (2) are square pipes, and four inverted T-shaped steel beams (4) are uniformly arranged on the outer surface of the square pipes.
3. The steel-concrete composite structure plate column structure system according to claim 2, wherein a rectangular opening is formed in the double steel plate-concrete girderless floor (1) at the joint of the double steel plate-concrete girderless floor (1) and the steel pipe concrete column (2), an L-shaped formwork (5) is arranged at a right angle of the lower surface of the rectangular opening, and a gap formed between adjacent L-shaped formworks (5) is matched with a horizontal steel plate of the inverted T-shaped steel beam (4) to form a concrete pouring formwork.
4. A steel-concrete composite structural plate column structural system according to claim 1, wherein the inverted T-shaped steel beams (4) and the T-shaped steel beams (3) are connected by a plurality of bolts arranged in a rectangular array.
5. The steel-concrete composite structural slab column structural system according to claim 1, wherein at the connection node of the adjacent first and second double steel plate-concrete girderless floors, the lower steel plate (1-1) of the connection end surface of the first double steel plate-concrete girderless floor extends out of the outer edge (1-4), a plurality of inverted T-shaped steel beams (4) are arranged on the outer edge (1-4) at intervals, a plurality of T-shaped steel beams (3) are arranged on the connection end surface of the second double steel plate-concrete girderless floor at intervals, and the T-shaped steel beams (3) of the second double steel plate-concrete girderless floor are overlapped with the inverted T-shaped steel beams (4) of the first double steel plate-concrete girderless floor and are connected through a plurality of bolts.
6. A steel-concrete composite structural plate column structural system according to claim 5, wherein a plurality of bolts connecting the T-shaped steel beam (3) and the inverted T-shaped steel beam (4) are arranged in a rectangular array.
7. The steel-concrete composite structural plate column structural system according to claim 5, wherein concrete is cast at the joint of the first double steel plate-concrete girderless floor and the second double steel plate-concrete girderless floor.
CN202010496358.3A 2020-06-03 2020-06-03 Steel-concrete combined structure plate column structure system Active CN111677172B (en)

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CN112323988A (en) * 2020-11-11 2021-02-05 东北大学 Connecting and construction process of prefabricated steel-encased concrete column and profiled steel sheet composite slab
CN112323985A (en) * 2020-11-11 2021-02-05 东北大学 Prefabricated reinforced concrete column and composite board node and construction process
CN112323987A (en) * 2020-11-11 2021-02-05 东北大学 Prefabricated stiffened steel pipe concrete column and profiled steel sheet combined plate joint and construction process

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112323988A (en) * 2020-11-11 2021-02-05 东北大学 Connecting and construction process of prefabricated steel-encased concrete column and profiled steel sheet composite slab
CN112323985A (en) * 2020-11-11 2021-02-05 东北大学 Prefabricated reinforced concrete column and composite board node and construction process
CN112323987A (en) * 2020-11-11 2021-02-05 东北大学 Prefabricated stiffened steel pipe concrete column and profiled steel sheet combined plate joint and construction process

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