Closely-spliced one-way laminated slab free of bar extending out of plate end and construction method of closely-spliced one-way laminated slab

A technology of connecting slabs and laminated slabs, which is applied to floors, structural elements, building components, etc., can solve the problems of discontinuous steel bars at the bottom, poor waterproof effect, and the existence of post-casting belts, so as to improve the waterproof effect and the continuous steel bars under stress , the effect of improving efficiency

Active Publication Date: 2020-12-01
SHAOXING UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The first purpose of the present invention is to provide a one-way laminated slab with continuous steel bars on the bottom slab and no ribs at the end of the plate and no ribs at the end of the post-casting strip. There are problems with ribs at the end of the bottom slab, discontinuous reinforcement at the bottom, and post-casting strips
[0009] The second object of the present invention aims at further providing a kind of one-way laminated board with good waterproof effect and good connection strength between the bottom and surface layers on the basis of the first object. Some laminated boards have poor waterproof effect and poor connection strength between the bottom and surface layers

Method used

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  • Closely-spliced one-way laminated slab free of bar extending out of plate end and construction method of closely-spliced one-way laminated slab
  • Closely-spliced one-way laminated slab free of bar extending out of plate end and construction method of closely-spliced one-way laminated slab
  • Closely-spliced one-way laminated slab free of bar extending out of plate end and construction method of closely-spliced one-way laminated slab

Examples

Experimental program
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Embodiment 1

[0033] Embodiment one, see figure 1 and figure 2 The invention discloses a one-way laminated slab with no ribs at the end of the close-fitting connecting plate, comprising a prefabricated bottom layer 1 and a cast-in-place surface layer 2 on the prefabricated bottom layer. Both the precast ground floor and the cast-in-place surface are concrete structures. The prefabricated bottom layer is composed of several prefabricated concrete panels 18 spliced ​​together. The concrete prefabricated slabs are provided with a number of steel bar channels 19 extending along the distribution direction of the concrete precast slabs, and the steel bar channels between adjacent concrete precast slabs are sealed and butted together one by one to form steel bar through holes 20 . A bottom stressed steel bar 21 is pierced through the steel bar passing hole. The two ends of the reinforced steel bars at the bottom are fixed on the two prefabricated concrete slabs at the outermost edge. A number...

Embodiment 2

[0035] Embodiment two, the difference with embodiment one is:

[0036] see image 3 and Figure 4 , also includes a number of lattice reinforcement groups 3 and a waterproof coating layer 4 between the prefabricated bottom layer and the cast-in-place surface layer. The lattice steel bar group includes the lower threaded steel bar 7, the upper threaded steel bar 8 and the steel connecting frame connecting the upper threaded bar and the lower threaded bar together. The lower threaded steel bars are poured in the prefabricated concrete slab, and the upper threaded steel bars are poured in the cast-in-place surface layer. A lattice reinforcement group includes 2 lower rebars and 1 upper rebar, and the upper rebar and the lower rebar are distributed in a triangle. The steel connecting frame includes two end connecting steel frames 9 located at the two ends of the upper threaded steel bar. The end connecting steel frame includes a horizontal steel section 10 and a vertical steel...

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Abstract

The invention relates to a closely-spliced one-way laminated slab free of a bar extending out of the plate end. The closely-spliced one-way laminated slab comprises a prefabricated bottom layer and acast-in-place surface layer located on the prefabricated bottom layer. The prefabricated bottom layer is formed by splicing a plurality of concrete prefabricated plates; the concrete prefabricated plates are provided with a plurality of steel bar hole channels; the steel bar hole channels between the adjacent concrete prefabricated plates are butted together to form steel bar via holes; and bottomstressed steel bars are arranged in the steel bar via holes in a penetrating mode, a plurality of grouting holes communicating with the steel bar hole channels are formed in the concrete prefabricated plates, the steel bar via holes are filled with transverse filling fixing strips formed by solidifying cement mortar, and the filling fixing strips extend into the grouting holes to form vertical fixing strips. According to a closely-spliced one-way laminated slab bottom plate free of the bar extending out of the plate end, bottom plate steel bars are continuous, the bar extending out of the plate end and post-cast strips do not exist, and the problems that according to an existing spliced laminated slab bottom plate, a bar extends out of the plate end, bottom steel bars are discontinuous, and post-cast strips exist are solved.

Description

technical field [0001] The invention relates to the technical field of prefabricated building boards, in particular to a one-way laminated board with no ribs at the end of the densely assembled connecting board and a construction method thereof. Background technique [0002] Prefabricated buildings meet the requirements of building industrialization and green environmental protection. Laminated panels are one of the main components of prefabricated buildings. [0003] At present, the one-way laminated slab (a laminated slab formed by splicing multiple concrete prefabricated slabs on the prefabricated bottom floor) has the following problems in the application process: the steel bars in the single concrete prefabricated bottom slab need to protrude from the end slab (hereinafter referred to as the reinforcement at the end of the slab) ), when splicing adjacent precast concrete slabs, the protruding steel bars are staggered together and then concrete is poured on site (herein...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B5/17E04C5/02E04C5/06E04B1/66
CPCE04B5/17E04C5/02E04C5/0636E04B1/66E04B2103/02E04B2103/06
Inventor 李泽深余润琪曾鑫王伟梁思雪
Owner SHAOXING UNIVERSITY
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