A cast-in-place composite construction method for a thick concrete roof structure system

Abstract

The invention discloses a cast-in-place superimposed construction method of a heavy concrete roof structure system, which comprises: 1) using concrete to pour the bottom slab; 2) installing a wall reinforcement cage on the poured bottom slab; Start to pour concrete into it from the bottom to the required height of the side wall, then stop pouring, and complete the pouring of the side wall; Concrete, complete the first node pouring; 4) Continue to pour concrete between the wall reinforcement cage and the arch plate reinforcement, and complete the second hidden arch layer pouring; 5) Install flat top layer reinforcement, pour concrete, and complete the third leveling Pouring of the top floor. The cast-in-place superimposed construction method of the present invention changes the one-time pouring of the originally designed arch structure into three parts of node + concealed arch + flat plate structure for batch pouring, which can realize the organization of flowing water construction, effectively reduce the construction load and ensure construction safety.

Description

technical field [0001] The invention relates to an arched cast-in-place superimposed method, in particular to a super-large and heavy concrete structure system cast-in-situ superimposed construction method. Background technique [0002] The thickness of the roof of the arched cast-in-place reinforced concrete structure reaches 2.5m ~ 3m, and the height of the vault is high, and the thickness of the section along the vertical direction at the arched part is greater. It is difficult to meet the requirements by using the traditional one-time integral cast-in-place concrete pouring process . After calculation, if the construction of the main structure is completed by one-time overall cast-in-place, even if heavy supports are used, the distance between the vertical supports will be smaller than the operating space, so the construction plan of completing the main arch structure concrete by one-time pouring is not feasible. Contents of the invention [0003] The technical proble...

AI Technical Summary

Problems solved by technology

[0002] The thickness of the roof of the arched cast-in-place reinforced concrete structure reaches 2.5m ~ 3m, and the height of the vault is high, and the thickness of the section along the vertical direction at the arched part is greater. It is difficult to meet the requirements by using the traditional one-time integral cast-in-place concrete pouring process

After calculation, if the construction of the main structure is completed by one-time overall cast-in-place, even if heavy supports are used, the distance between the vertical supports will be smaller than the operating space, so the construction plan of completing the main arch structure concrete by one-time pouring is not feasible

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