Large-area RC basement structure sequence construction method

Abstract

The invention provides a large-area RC basement structure sequence construction method. Firstly, a large-area RC basement is structurally decomposed, and warehouse dividing arrangement, operation conducted according to a rebar binding method, construction joint arrangement, concrete pouring, concrete curing, concrete temperature measurement and briquette retention are sequentially conducted. According to the large-area RC basement structure sequence construction method, a sequence method is adopted for replacing a construction post-cast strip, related work such as RC basement backfill and the like is conducted in advance, engineering construction efficiency is improved, and construction cost is reduced. Construction control is strict, and structural concrete early-stage cracks of the RC basement are effectively controlled. The concrete mixing ratio is optimized, the cement use amount is controlled, and structural concrete shrinkage distortion of the RC basement is effectively controlled. The waterproof quality of concrete of an RC basement structural outer wall and a bottom plate are improved.

Description

technical field [0001] The invention relates to the technical field of warehouse-hopping construction, in particular to a warehouse-jumping construction method for a large-area RC basement structure. Background technique [0002] In the current construction industry, large-area RC (reinforced concrete) basement structures require post-casting strips to control concrete temperature shrinkage cracks on the corresponding parts of the floor, exterior walls, and roof. The traditional post-pouring belt retention construction method has brought many adverse effects to the project. The post-pouring belt has been left for a long time, especially the formwork support at the roof post-casting belt cannot be removed, which will affect the construction of other projects in the basement, such as backfilling and decoration works, and affect the progress of the project; Due to the impact of the bound steel bars, the cleaning work is very difficult; finished product protection and safety pr...

AI Technical Summary

Problems solved by technology

The traditional post-pouring belt retention construction method has brought many adverse effects to the project

The post-pouring belt has been left for a long time, especially the formwork support at the roof post-casting belt cannot be removed, which will affect the construction of other projects in the basement, such as backfilling and decoration works, and affect the progress of the project; Due to the impact of the bound steel bars, the cleaning work is very difficult; finished product protection and safety protection measures must be taken at the post-pouring belt, which increases the engineering workload and brings a lot of inconvenience to the construction; when pouring concrete on the post-pouring belt, the original The concrete is cleaned and chiselled. This process is cumbersome and wastes manpower. The post-cast concrete needs to be upgraded and mixed with an admixture of expansion agent. After pouring, it should be carefully maintained and fully watered and saturated for about two weeks. Otherwise, the quality risk of water leakage is likely to occur at the joint, wasting manpower and material resources; the post-casting belt of the basement exterior wall is the focus and difficulty of quality control, and this is the most prone to water leakage. A little carelessness will cause quality problems, and the quality is not easy to control

[0003] In the traditional large-scale RC basement construction, the concrete temperature shrinkage is controlled by post-pouring belts. The construction process is complicated, wastes financial and material resources, delays the construction period, and the poor construction quality often leads to water seepage in the basement structure.

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