A construction method of large raft foundation

Abstract

The invention discloses a large raft foundation construction method and belongs to the technical field of raft supporting structures. The large raft foundation construction method is characterized by comprising the following steps that firstly, a base (7) is welded to the bottom ends of stand columns (4); secondly, bottom reinforcement bar binding is conducted, and then the base (7) is welded to bottom reinforcement bars; thirdly, middle connecting beams are horizontally welded to the middle portions of the stand columns (4); fourthly, bracing pieces (6) are only supported between the adjacent stand columns (4) on the outer sides; fifthly, middle reinforcement bar binding is conducted, and middle reinforcement bars are welded to the middle connecting beams; sixthly, upper beams (8) are horizontally welded to the top ends of the stand columns; seventhly, upper reinforcement bar binding is conducted, and upper reinforcement bars are welded to the upper cross beams (8); and eighthly, concrete pouring is conducted. By means of the large raft foundation construction method, the welding project amount is small, the welding quality is ensured, construction is convenient, the steel use amount is small, the construction period is short, and the overall stability is good.

Description

technical field [0001] The invention relates to a large-scale raft foundation construction method, which belongs to the technical field of raft support structures. Background technique [0002] In the construction of large-scale raft foundations, the amount of steel bars is large, and it is easy to generate large lateral forces and concentrated loads during the construction process. The overall stability is poor, and it is easy to cause lateral collapse. The amount of steel bars used in the traditional raft foundation horse stool construction method Large, large amount of welding work, poor overall stability, and small synchronous working surface, inconvenient operation and long construction period. In order to ensure the overall stability of raft foundation construction, reduce the amount of steel reinforcement, facilitate operation and shorten the construction period, it is necessary to design a new large-scale raft foundation construction method. Contents of the inventi...

AI Technical Summary

Problems solved by technology

[0002] In the construction of large-scale raft foundations, the amount of steel bars is large, and it is easy to generate large lateral forces and concentrated loads during the construction process. The overall stability is poor, and it is easy to cause lateral collapse. The amount of steel bars used in the traditional raft foundation horse stool construction method Large, large amount of welding work, poor overall stability, and small synchronous working surface, inconvenient operation, and long construction period

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