Method for constructing recycled mixed concrete beams and slabs

A construction method and concrete technology, which is applied in the direction of floors, joists, girders, etc., can solve the problems of difficult cutting of recycled aggregates and long construction period, and achieve the effects of saving electric energy, improving production efficiency, and saving manpower

Active Publication Date: 2016-01-20
GUANGZHOU CONSTR ENG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The object of the present invention is to provide a safe, flexible and convenient construction method for recycled concrete beam slabs with high construction efficiency. For the construction of recycled mixed concrete beams and slabs

Method used

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  • Method for constructing recycled mixed concrete beams and slabs
  • Method for constructing recycled mixed concrete beams and slabs
  • Method for constructing recycled mixed concrete beams and slabs

Examples

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Embodiment 1

[0034] see Figure 1-7 As shown, the construction method of the recycled mixed concrete beam slab of the present invention includes: dividing the installation of conventional beam slab steel bars into two installations, first installing the bottom steel bars; then placing waste concrete blocks, then installing the upper steel bars, and finally pouring new concrete to complete. The beam slab is placed on the template 10, and waste concrete aggregates 9 are placed in the beam slab.

[0035] Among them, the stirrups of the beam are made into the upper L-shaped stirrup 1 and the lower L-shaped stirrup 2, and are installed twice. The installation connection point is set at the upper 2 / 3L of the bottom of the stirrup, and the plate reinforcement is made of cold-rolled steel. The overall hoisting of the mesh. Both the upper and lower sections of the L-shaped hoop connecting joint are provided with straight thread sleeve threads, and the two sections of thread threads can rotate bidi...

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Abstract

The invention discloses a method for constructing recycled mixed concrete beams and slabs. The method includes mounting conventional reinforcing steel bars of the beams and slabs in two processes, to be more specific, mounting the bottom reinforcing steel bars at first, then placing waste concrete blocks, mounting the upper reinforcing steel bars and ultimately pouring new concrete. An upper L-shaped stirrup and a lower L-shaped stirrup are secondarily mounted for manufacturing a stirrup of each beam, mounting joints are arranged at upper positions separated from the bottoms of the stirrups by 2 / 3 L, and slab surface bars are integrally lifted by the aid of cold-rolled reinforcing steel bar meshes. Integral lifting techniques are implemented for the slab surface bars by the aid of the cold-rolled reinforcing steel bar meshes, to be more specific, slab bottom bars are mounted at first, then waste concrete blocks are placed after the slab bottom bars are completely mounted, and cold-rolled reinforcing steel bar mesh surface layers are lifted. The new concrete is integrally poured after working procedures are completed. The method for constructing the recycled mixed concrete beams and slabs has the advantages of safety, flexibility and convenience in use, high construction efficiency and suitability for constructing the recycled mixed concrete beams and slabs.

Description

technical field [0001] The invention relates to a construction method, which belongs to the technical field of recycled mixed concrete cast-in-place beam slab construction, in particular to a construction method of recycled mixed concrete beam slab. Background technique [0002] Recycled mixed concrete is the concrete waste obtained from the demolition of old buildings. After crushing, screening, purification and other processes, a large number of aggregate-scale particles are obtained, and then new concrete is prepared by using them. It is a new technology that responds to the national green construction call, promotes the sustainable development of the construction industry, and achieves the strategic goal of energy conservation and emission reduction. However, how to effectively use this technology in actual construction is still a problem that needs to be solved at present. [0003] In the current design and application, it is very common that the spacing between beam s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04C3/20E04B5/32E04C5/16
CPCE04B5/40E04C5/0609E04B2103/02E04B1/161
Inventor 王龙吴波
Owner GUANGZHOU CONSTR ENG
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