CN210459704U - Full-assembly replaceable steel-concrete composite floor - Google Patents

Full-assembly replaceable steel-concrete composite floor Download PDF

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Publication number
CN210459704U
CN210459704U CN201921120759.8U CN201921120759U CN210459704U CN 210459704 U CN210459704 U CN 210459704U CN 201921120759 U CN201921120759 U CN 201921120759U CN 210459704 U CN210459704 U CN 210459704U
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China
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steel
concrete
concrete composite
longitudinal
composite floor
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CN201921120759.8U
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Inventor
喻江
胡少伟
陆俊
范向前
董茂干
张卫云
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Nanjing Water Planning And Designing Institute Co ltd
Nanjing Hydraulic Research Institute of National Energy Administration Ministry of Transport Ministry of Water Resources
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Nanjing Water Planning And Designing Institute Co ltd
Nanjing Hydraulic Research Institute of National Energy Administration Ministry of Transport Ministry of Water Resources
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Abstract

The utility model relates to a full-assembly replaceable steel-concrete composite floor slab, which comprises a steel-concrete frame foundation structure and a plurality of steel-concrete composite structures consisting of steel plates and reinforced concrete panels; the steel-concrete frame foundation structure is composed of a plurality of vertically arranged hollow steel pipe columns and a plurality of I-shaped steel beams fixedly connected with two adjacent hollow steel pipe columns respectively, the I-shaped steel beams are horizontally arranged and divided into a transverse steel beam and a longitudinal steel beam, and the steel-concrete combined structure is lapped on the two adjacent longitudinal steel beams; the upper flange plate of the longitudinal steel beam is provided with a plurality of pore channels, a stainless steel shear screw penetrating through the steel plate is preset on the steel-concrete composite structure, and the longitudinal steel beam and the steel plate are fastened together through a retaining nut after the stainless steel shear screw penetrates through the corresponding pore channel. The utility model discloses not only do benefit to the quick high-efficient assembly of steel-concrete composite floor slab, can conveniently change the assembly component who damages moreover.

Description

Full-assembly replaceable steel-concrete composite floor
Technical Field
The utility model relates to a complete removable formula steel-concrete composite floor that assembles belongs to assembly type building technical field.
Background
In order to realize rapid and efficient assembly production, meet the requirements of people on living space and achieve the aims of multiple functions and durability, the steel-concrete combined structure plays an increasingly important role in an assembly type building structure system by the advantages of large spanning capacity, high bearing level, wide application range and the like.
The traditional steel-concrete composite floor slab mainly comprises a steel plate and a reinforced concrete slab, a plurality of assembly holes are reserved in the reinforced concrete slab during assembly construction, the assembly is carried out one by one through shear-resistant studs, and then the hole sealing is carried out, so that the compactness of the floor slab is ensured. In this way, the prefabrication process becomes complicated, and the quality in the hole of the assembly hole is difficult to control. In addition, the shear resistant stud is difficult to be in complete contact with the assembly hole by adopting the assembly method, and the effective transmission of shear force cannot be realized to ensure the safe use of the structure.
On the other hand, many engineering practices show that the problems of concrete cracking near the assembly hole, corrosion of a shear connector and the like can also occur when the assembly type steel-concrete composite floor slab is in service operation in a natural environment for a long time, and the normal and safe use of the structure is also seriously influenced.
Disclosure of Invention
The to-be-solved technical problem of the utility model is: the assembled steel-concrete composite floor slab is beneficial to the quick and efficient assembly of the steel-concrete composite floor slab and convenient for replacing damaged assembly components.
In order to solve the technical problem, the utility model provides a technical scheme is: a full-assembly replaceable steel-concrete composite floor slab comprises a steel-concrete frame foundation structure and a plurality of steel-concrete composite structures consisting of steel plates and reinforced concrete panels, wherein the reinforced concrete panels and the steel plates are connected together through pouring;
the steel-concrete frame foundation structure is composed of a plurality of vertically arranged hollow steel pipe columns and a plurality of I-shaped steel beams fixedly connected with two adjacent hollow steel pipe columns respectively, the I-shaped steel beams are horizontally arranged and divided into a transverse steel beam and a longitudinal steel beam, and the steel-concrete combined structure is lapped on the two adjacent longitudinal steel beams;
the upper flange plate of the longitudinal steel beam is provided with a plurality of pore channels, a stainless steel shear screw penetrating through the steel plate is preset on the steel-concrete composite structure, and the longitudinal steel beam and the steel plate are fastened together through a retaining nut after the stainless steel shear screw penetrates through the corresponding pore channel.
Preferably, the inner diameter of the duct is the same as the outer diameter of the stainless steel shear screw.
Preferably, the hollow steel pipe column is filled with concrete.
Preferably, the hollow steel pipe column is fixedly connected with the I-shaped steel beam through welding or self-tapping screws.
The utility model discloses the beneficial effect who brings is:
(1) the utility model discloses the equal prefabricated processing of well all components is accomplished, transports and carries out bolt assembly to the job site and connect, has reduced the noise pollution of job site on the one hand, and on the other hand is when guaranteeing construction quality, has further improved the efficiency of construction.
(2) The utility model discloses adopt steel-mix integrated configuration, can reduce the height of roof beam cross-section, increase the span of girder, more do benefit to and improve indoor clean space.
(3) The utility model discloses when pouring steel sheet, reinforced concrete panel, carry out effective contact through stainless steel shear screw and reinforced concrete panel, can avoid near pilot hole concrete stress concentration and crushing, more be favorable to avoiding leading to the emergence that the screw rod corrodes because the pilot hole space in the traditional connected mode.
(4) Compare with traditional assembled floor, the utility model discloses can change the concrete panel component that can not normal use after long-time operation, save the maintenance reinforcement expense, create the condition for composite floor's recycle.
In order to improve the stability of the junction of the adjacent reinforced concrete panels, the technical scheme is further improved as follows: and key teeth and key grooves which face each other and are matched with each other are respectively arranged on the interfaces of the two adjacent steel-concrete composite structures, and the butt joints of the key teeth and the key grooves are mutually glued.
Drawings
The present invention will be further explained with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Figure 2 is a schematic view of a steel-concrete frame infrastructure.
FIG. 3 is a schematic view of the connection of a stainless steel shear screw to a steel plate.
Fig. 4 is a schematic illustration of a steel plate in cast connection with a reinforced concrete panel.
Fig. 5 is a schematic view of the connection of two adjacent reinforced concrete panels.
Fig. 6 is an installation schematic diagram of an embodiment of the present invention.
Reference numerals: 1 is a reinforced concrete panel and 2 is a steel plate; 3 is stainless steel shear screw, 4 is vertical girder steel, 5 is the pore, 6 is hollow steel-pipe column, 7 is self-compaction expanded concrete, 1a is protruding shear force key tooth, 1b is concave shear force keyway, 2a is the through-hole on the steel sheet, 3a is hexagon stopping nut, 4a is the upper flange board.
Detailed Description
Examples
The fully assembled replaceable steel-concrete composite floor slab of the embodiment, as shown in fig. 1-4, comprises a steel-concrete frame foundation structure and a plurality of steel-concrete composite structures consisting of steel plates 2 and reinforced concrete panels 1, wherein the reinforced concrete panels 1 and the steel plates 2 are connected together through pouring, and the steel plates 2 and the reinforced concrete panels 1 are prefabricated members.
As shown in fig. 1 and 2, the reinforced concrete frame foundation structure is composed of a plurality of vertically arranged hollow steel pipe columns 6 and a plurality of i-shaped steel beams respectively fixedly connected with two adjacent hollow steel pipe columns 6, the i-shaped steel beams are horizontally arranged and divided into two types, namely a transverse steel beam and a longitudinal steel beam 4, a plurality of steel-concrete composite structures are parallelly overlapped on the two adjacent longitudinal steel beams 4, each reinforced concrete panel 1 spans the adjacent longitudinal steel beams 4, and the hollow steel pipe columns 6 are fixedly connected with the i-shaped steel beams through welding or self-tapping screws. Preferably, the hollow steel pipe column 6 is filled with self-compacting expansion concrete 7.
As shown in fig. 2, the upper flange plate 4a of the longitudinal steel beam 4 is provided with a plurality of ducts 5, as shown in fig. 3, a stainless steel shear screw 3 penetrating through the steel plate 2 is preset on the steel-concrete composite structure, as shown in fig. 6, after the stainless steel shear screw 3 penetrates through the corresponding duct 5, the longitudinal steel beam 4 and the steel plate 2 are fastened together by a retaining nut. The inner diameter of the duct 5 is preferably the same as the outer diameter of the stainless steel shear screw 3.
The manufacturing and mounting method of the present embodiment is as follows:
1) installing a hollow steel pipe column 6, pouring self-compacting expanded concrete 7 in the hollow steel pipe column 6 to establish a combined column foundation, and installing a transverse steel beam and a longitudinal steel beam on the combined column foundation to form a reinforced concrete frame foundation structure;
2) on the basis of a prefabricated steel plate with a through hole, a high-strength stainless steel shear screw 3 penetrates through the through hole 2a in the steel plate and is welded, the reserved part of the end of the screw rod is determined according to the height of a concrete panel, and a prefabricated steel plate assembly is formed by welding;
3) on the basis of the longitudinal steel beam 4, reserving pore channels 5 on the upper flange plate 4, wherein the pore channels 5 correspond to the through holes 2a on the steel plate one by one;
4) pouring the prefabricated steel plate component and the reinforced concrete panel together to form a whole to form a steel-concrete combined structure;
5) as shown in fig. 6, a steel-concrete frame foundation structure is used as a platform, and a steel-concrete composite structure with a steel plate component is installed by hoisting, so that a rod head of a high-strength stainless steel shear screw rod just penetrates through a pore channel on an upper flange plate of a longitudinal I-shaped steel beam, meanwhile, the self weight of a prefabricated reinforced concrete panel is utilized for compaction, and then, the prefabricated reinforced concrete panel is fixedly connected through a regular hexagon retaining nut 3a to assemble the screw rod in the prefabricated steel plate component.
The embodiment can be further modified as follows: as shown in fig. 5, two adjacent prefabricated reinforced concrete panels are connected through a preset convex shear key tooth 1a and a preset concave shear key groove 1b, and are bonded at the joint through epoxy resin.
The present invention is not limited to the specific technical solutions described in the above embodiments, and other embodiments can be provided in addition to the above embodiments. It should be understood by those skilled in the art that any modifications, equivalent substitutions, improvements and the like that are made within the spirit and principle of the present invention are within the scope of the present invention.

Claims (5)

1. The utility model provides a removable formula steel-concrete composite floor of full assembly which characterized in that: the reinforced concrete composite structure comprises a reinforced concrete frame foundation structure and a plurality of steel-concrete composite structures consisting of steel plates and reinforced concrete panels, wherein the reinforced concrete panels and the steel plates are connected together through pouring;
the steel-concrete frame foundation structure is composed of a plurality of vertically arranged hollow steel pipe columns and a plurality of I-shaped steel beams fixedly connected with two adjacent hollow steel pipe columns respectively, the I-shaped steel beams are horizontally arranged and divided into a transverse steel beam and a longitudinal steel beam, and the steel-concrete combined structure is lapped on the two adjacent longitudinal steel beams;
the upper flange plate of the longitudinal steel beam is provided with a plurality of pore channels, a stainless steel shear screw penetrating through the steel plate is preset on the steel-concrete composite structure, and the longitudinal steel beam and the steel plate are fastened together through a retaining nut after the stainless steel shear screw penetrates through the corresponding pore channel.
2. The fully assembled replaceable steel-concrete composite floor slab as recited in claim 1, wherein: the inner diameter of the pore passage is the same as the outer diameter of the stainless steel shear screw.
3. The fully assembled replaceable steel-concrete composite floor slab as recited in claim 1, wherein: concrete is filled in the hollow steel pipe column.
4. The fully assembled replaceable steel-concrete composite floor slab as recited in claim 1, wherein: and key teeth and key grooves which face each other and are matched with each other are respectively arranged on the interfaces of the two adjacent steel-concrete composite structures, and the butt joints of the key teeth and the key grooves are mutually glued.
5. The fully assembled replaceable steel-concrete composite floor slab as recited in claim 1, wherein: the hollow steel pipe column is fixedly connected with the I-shaped steel beam through welding or self-tapping screws.
CN201921120759.8U 2019-07-17 2019-07-17 Full-assembly replaceable steel-concrete composite floor Active CN210459704U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921120759.8U CN210459704U (en) 2019-07-17 2019-07-17 Full-assembly replaceable steel-concrete composite floor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921120759.8U CN210459704U (en) 2019-07-17 2019-07-17 Full-assembly replaceable steel-concrete composite floor

Publications (1)

Publication Number Publication Date
CN210459704U true CN210459704U (en) 2020-05-05

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113404180A (en) * 2021-06-09 2021-09-17 中国建筑第八工程局有限公司 Coupling shear wall structure capable of being repaired and replaced after earthquake of coupling beam floor slab

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113404180A (en) * 2021-06-09 2021-09-17 中国建筑第八工程局有限公司 Coupling shear wall structure capable of being repaired and replaced after earthquake of coupling beam floor slab

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