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Prefabricated steel and concrete composite floor adopting self-locking connection and installation method

A combined floor slab and assembly technology, applied to floors, building components, buildings, etc., can solve problems such as concrete cracking and connector corrosion, and achieve the effects of low foundation cost, improved connection strength, and less material usage

Pending Publication Date: 2018-07-24
NANJING HYDRAULIC RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is: to overcome the shortcomings of the prior art, to provide a matching steel-concrete composite floor with high assembly efficiency and tight connection structure and its installation method, which can effectively solve the connection between the traditional concrete floor and section steel. Corrosion of parts and cracking of concrete

Method used

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  • Prefabricated steel and concrete composite floor adopting self-locking connection and installation method
  • Prefabricated steel and concrete composite floor adopting self-locking connection and installation method
  • Prefabricated steel and concrete composite floor adopting self-locking connection and installation method

Examples

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Embodiment 1

[0029] This embodiment is a prefabricated steel-concrete composite floor with self-locking connection, such as Figure 1-Figure 4 As shown, it includes a frame foundation formed by a plurality of hollow steel pipe columns 1, H-shaped steel beams fixed on the frame foundation and arranged horizontally, and a plurality of side-by-side prefabricated reinforced concrete panels 5 arranged on the H-shaped steel beams, and the hollow steel pipes The column 1 is filled with concrete 2 . The H-shaped steel beam is composed of multiple transverse beams 3 a and longitudinal beams 3 , and each prefabricated reinforced concrete panel 5 spans the adjacent longitudinal beams 3 . This example does not limit the shape of the steel pipe column. According to actual needs, the cross-sectional shape of the hollow steel pipe column 1 can be square or polygonal, etc.; the H-shaped steel beam can be fixed on the frame foundation by welding or self-tapping screws.

[0030] The top surface of the uppe...

Embodiment 2

[0038] This embodiment is the installation method of the prefabricated steel-concrete composite floor in Embodiment 1, including the following steps:

[0039] 1) Install hollow steel pipe columns to form the frame foundation, install and fix H-shaped steel beams on the frame foundation, and lay ribs above the H-shaped steel beams;

[0040] 2) Adhere stretchable and deformable strip-shaped rubber sealing material on the edge of the upper flange plate of the longitudinal beam;

[0041] 3) With the steel frame composed of hollow steel pipe columns and H-shaped steel beams as the platform, the prefabricated reinforced concrete panels with channels, slurry inlets and slurry outlets are installed by hoisting, so that the ribs just snap into the channels; at the same time, use The weight of the prefabricated reinforced concrete panel completely compresses the rubber sealing material to ensure the sealing of the grouting channel;

[0042]4) Pressure grout the non-shrinkage self-compa...

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Abstract

The invention relates to a prefabricated steel and concrete composite floor adopting self-locking connection and an installation method. The prefabricated steel and concrete composite floor comprisesa frame foundation, an H-shaped steel beam and prefabricated reinforced concrete panels. The H-shaped steel beam is composed of transverse beams and longitudinal beams, and upper flange plates of thelongitudinal beams are fixedly connected with rib plates. Channels matched with the rib plates are formed in the prefabricated reinforced concrete panels, and the bottom surfaces of the prefabricatedreinforced concrete panels, the upper flange plates of the longitudinal beams and the channels are filled with no-shrink self-compacting high-strength concrete filler. The installation method comprises the steps that firstly the frame foundation and the H-shaped steel beam are installed, and the rib plates are laid above the H-shaped steel beam; and then a rubber sealing material is bonded on theedges of the upper flange plates of the longitudinal beams, and the rib plates are just clamped into the channels by lifting the prefabricated reinforced concrete panels; and finally the non-shrink self-compacting high-strength concrete filler is subjected to pressure grouting through a slurry inlet. According to the prefabricated steel and concrete composite floor adopting the self-locking connection and the installation method, the connection strength is high, the assembly construction efficiency is high, and the problems of corrosion of connecting pieces and cracking of concrete and the like can be effectively solved.

Description

technical field [0001] The invention relates to a prefabricated steel-concrete composite floor slab adopting self-locking connection and an installation method, belonging to the technical field of prefabricated buildings. Background technique [0002] In the field of construction, with the continuous improvement of people's requirements for energy conservation and environmental protection, steel-concrete composite structures occupy more and more prefabricated structures due to their advantages such as small cross-sectional area, light weight, large spanning capacity, and wide application range. Important position. In response to the country's call for a new type of urbanization centered on people, it will push the industrialization of prefabricated buildings to a new stage. [0003] The prefabricated steel-concrete composite floor is a new type of composite structure. It is quickly assembled by prefabricated components to form an overall structure. On the one hand, it can e...

Claims

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Application Information

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IPC IPC(8): E04B5/17
CPCE04B5/17
Inventor 胡少伟喻江叶宇霄许毅成
Owner NANJING HYDRAULIC RES INST
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