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Stair type expansion reinforcing band system and construction method

An expansion reinforcement belt and stepped technology, applied in artificial islands, water conservancy projects, infrastructure projects, etc., can solve problems such as water seepage in construction joint areas, cracking of super-long components, etc., to speed up construction progress, save engineering costs, and avoid rework The effect of steps

Inactive Publication Date: 2018-12-18
CHINA MCC17 GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to solve the problems of cracking of super-long components and water seepage in the construction joint area proposed in the above-mentioned background technology;

Method used

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  • Stair type expansion reinforcing band system and construction method
  • Stair type expansion reinforcing band system and construction method
  • Stair type expansion reinforcing band system and construction method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Such as figure 1 A stepped expansion reinforcing belt system shown includes a concrete bottom form, a concrete matrix is ​​poured on the upper end of the concrete bottom form, and an upper through-going steel bar and a lower through-through steel bar are pre-embedded in the concrete base. An expansion reinforcement belt is provided, and the expansion reinforcement belt is poured with post-poured expansive concrete. The steel wire mesh on both sides is fixedly connected with a stepped vertical reinforcement bar, and the upper and lower ends of the expansion reinforcement belt are respectively provided with an upper additional reinforcement bar and a lower additional reinforcement bar.

[0038] Wherein, the inner corner of the expansion reinforcement belt is provided with an expansion waterstop, the upper additional reinforcement, the lower additional reinforcement, the stepped vertical reinforcement and the steel wire mesh are welded and bound to each other, and the step...

Embodiment 2

[0047] Such as figure 2 The construction method of the wall expansion reinforcing belt system includes the following steps:

[0048] Step 1, substrate cleaning;

[0049] Step 2: Install expansion reinforcement strips 2 at intervals of 35m along the vertical and horizontal sides of the structure at the parts of the concrete matrix 1 where the temperature shrinkage stress is relatively large. The cross section of the slope is a stepped structure;

[0050] Step 3: Set up a slope stepped steel wire mesh 3 on both sides of the expansion reinforcement belt 2 for isolation, and set a A16@250mm stepped steel bar at the location of the steel wire mesh 3 for reinforcement, and the expansion reinforcement belt 2 Set the upper additional steel bar 7 on the inner side, and weld the additional steel bar 7, the stepped vertical reinforcement bar, and the steel wire mesh 3 to each other, and bind them firmly to avoid being washed away by the concrete during the pouring process. hose 10;

...

Embodiment 3

[0055] Such as image 3 The construction method of the beam expansion reinforcement belt system specifically includes the following steps:

[0056] Step 1, substrate cleaning;

[0057] Step 2: Install expansion reinforcement strips 2 at intervals of 35m along the vertical and horizontal sides of the structure at the parts of the concrete matrix 1 where the temperature shrinkage stress is relatively large. The cross section is a slope stepped structure;

[0058] Step 3: Set up a slope stepped steel wire mesh 3 on both sides of the expansion reinforcement belt 2 for isolation, and set a A16@250mm stepped steel bar at the location of the steel wire mesh 3 for reinforcement, and the expansion reinforcement belt 2 The upper additional steel bar 7 is arranged on the inner side, and the additional steel bar 7, the stepped vertical reinforcement bar, and the steel wire mesh 3 are welded to each other and bound firmly. Four stirrup bars 13 are added on both sides of the reinforcement...

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Abstract

The invention provides a stair type expansion reinforcing band system and a construction method. The system comprises a concrete bed die. A concrete base body is poured to the upper end of the concrete bed die. Upper run-through reinforcing steel bars and lower run-through reinforcing steel bars are embedded in the concrete base body. Expansion reinforcing bands are arranged in the concrete base body. Post-poured expansive concrete is poured in the expansion reinforcing bands. The section of each expansion reinforcing band is in a slope stair shape. Stair type steel wire nets are attached to the two side walls of each expansion reinforcing band. The steel wire net on each side is fixedly connected with a stair type vertical reinforcing steel bar. The system is simple in structure, the construction method is simple and clear, operation is convenient, the system can be effectively used for expansion post-cast strip pouring construction of most concrete pouring, the problems of ultra-longcomponent cracking and construction joint area water seepage are solved, the construction quality is guaranteed, meanwhile, later rework steps are avoided, engineering cost is saved, and the construction schedule is quickened.

Description

technical field [0001] The invention relates to the technical field of building construction, in particular to a stepped expansion reinforcing belt system and a construction method. Background technique [0002] In recent years, with the diversified development of the construction industry, the design of engineering structures has become more and more novel, and buildings with super-long structures, large chassis and multi-tower structures or irregular structures have emerged in cities, especially those with special requirements for underground waterproofing. The emergence of large-area underground buildings continues. [0003] Most structures are designed with post-construction pouring strips to account for shrinkage cracking of the concrete. [0004] However, the post-casting zone is very prone to water leakage, which brings hidden dangers to the normal use of the building. The retention time in the main construction is relatively long. During this period, the maintenanc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D31/02E02D29/16
CPCE02D31/02E02D29/16
Inventor 万超范刚王大明彭文峰
Owner CHINA MCC17 GRP
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