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Fully-dry connection precast concrete plate, floor and method for improving seismic performance of floor

A prefabricated concrete slab and fully dry technology, which is applied in the direction of earthquake resistance, floor slabs, building materials, etc., can solve the problems of large season and climate influence, large environmental impact, long construction period, etc., and achieve high bearing capacity and good mechanical performance , the effect of high bending resistance

Inactive Publication Date: 2015-09-02
HENAN UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the need for post-cast concrete during construction, there are a lot of wet work and on-site work, which requires formwork and support, complex work, long construction period, strong influence by seasons and climate, high resource consumption, and great impact on the environment

Method used

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  • Fully-dry connection precast concrete plate, floor and method for improving seismic performance of floor
  • Fully-dry connection precast concrete plate, floor and method for improving seismic performance of floor
  • Fully-dry connection precast concrete plate, floor and method for improving seismic performance of floor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A fully dry-connected precast concrete slab, comprising a precast concrete slab 1 with tongue-and-groove forms on both sides, a row of precast slab top embedded parts 2 are pre-embedded on both sides of the top of the precast concrete slab 1, and the precast concrete slab 1 The bottom of the slab is provided with a group of slab bottom embedded parts 3, and slab end connectors 5 are respectively embedded at both ends of the precast concrete slab 1; The top anchor bar is connected with the top anchor bar, and the top anchor bar is pre-embedded in the precast concrete slab 1, and the slab top anchor plate is exposed on the side of the precast concrete slab; The longitudinal slab bottom steel bar 36 located on both sides of the bottom of the precast concrete slab 1 is connected with a pre-embedded metal plate on the longitudinal slab bottom steel bar 36, and the pre-embedded metal plate on the bottom side of the precast concrete slab 1 and the precast concrete slab The pre...

Embodiment 2

[0026] A floor constructed from the fully dry-connected precast concrete slabs, including a floor slab spliced ​​by fully dry-connected precast concrete slabs, beams are connected around the floor, and the beams are respectively connected to the fully dry-connected precast concrete The two ends of the slab and the outer full-dry connection are connected to the precast concrete slabs, and the corresponding slab top embedded parts 2 in the adjacent fully dry-connected precast concrete slabs are connected to each other and the corresponding slab top embedded parts 2 The top anchor plate is welded and connected, and the corresponding pre-embedded metal plate in the slab bottom embedded part 3 corresponding to the position in the adjacent fully dry-connected precast concrete slab is provided with a slab bottom metal connecting plate 35. The middle part of the bottom metal connection plate 35 is provided with a through hole, and the bottom metal connection plate 35 is respectively we...

Embodiment 3

[0028]A method for improving the anti-seismic performance of a floor. First, the floor slab formed by splicing the fully dry-connected precast concrete slabs is connected to the surrounding beams. Secondly, the positions of the adjacent fully dry-connected precast concrete slabs are corresponding The top anchor plate of the slab top embedded part 2 is fully welded and welded, and then the metal plate connected by the node is adjusted by welding the slab bottom embedded part 3 corresponding to the position in the adjacent fully dry-connected precast concrete slab The size of the opening and the length of the weld make the deformation capacity of the embedded part at the bottom of the plate close to that of the embedded part at the top. In this embodiment, the welding connection of the embedded parts 3 at the bottom of the slab adopts the metal connection of the embedded metal plate covering the bottom of the slab among the two embedded parts at the bottom of the slab correspondi...

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Abstract

The invention discloses a fully-dry connection precast concrete plate, a floor and a method for improving seismic performance of the floor. The concrete plate comprises a precast concrete plate, wherein plate top embedded parts are embedded in two sides of the top of the precast concrete plate; plate bottom embedded parts are arranged at the bottom of the precast concrete plate; each plate top embedded part comprises a plate top anchor slab; each plate top anchor slab is connected with an exposed plate top anchor bar; each plate bottom embedded part comprises horizontal plate bottom steel bars; the horizontal plate bottom steel bars are connected with embedded metal plates; longitudinal plate bottom steel bars are arranged among the embedded metal plates; the metal plates are exposed on the plate bottom surface of the precast concrete plate. The floor comprises a floor body spliced by the fully-dry connection precast concrete plates; the periphery of the floor is connected with a beam. By virtue of the method for improving the seismic performance of the floor, the node connection deformation capability of the floor spliced by the fully-dry connection precast concrete plates can be regulated by welding the adjacent plate bottom embedded parts with corresponding positions in the fully-dry connection precast concrete plates, so that the deformation capability of the plate bottom embedded parts is superior to that of the plate top embedded parts.

Description

technical field [0001] The invention relates to the field of prefabricated assembled buildings and construction thereof, in particular to a fully dry-connected prefabricated concrete slab, a floor and a method for improving its anti-seismic performance. Background technique [0002] At present, prefabricated floor slabs in the construction field mainly include: prefabricated perforated panels, grooved panels and prefabricated laminated panels, etc. Traditional prefabricated perforated panels and grooved panels have a relatively narrow range of use due to stress and connection. The prefabricated laminated slab floor is the most researched and applied floor form in the past 20 years. Composite floors can be roughly divided into two categories: thin-slab laminated floors and thick-slab laminated floors. Lamination of thin slabs is assembling an integral floor. In this type of floor, the prefabricated slab is a precast concrete thin slab, which is poured into a whole with the c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04C2/06E04C2/30E04B5/02E04B1/98
Inventor 庞瑞陈桂香倪红梅胡晓娜韩阳周蓝琨程健刘瑞
Owner HENAN UNIVERSITY OF TECHNOLOGY
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