Steel structure of prestressed high-strength concrete pipe pile body

Abstract

The invention relates to a steel structure of a pile used for construction, in particular to a steel structure of a pre-stress high-strength concrete pipe pile body. The steel structure comprises a plurality of pre-stress longitudinal ribs, a spiral net barrel and a plurality of annular hooping ribs, a plurality of steel wires intersect and bound together in the direction opposite to the spiral direction of a spiral angle at certain screw pitch to form the spiral net barrel, the pre-stress longitudinal ribs are evenly distributed in a circle formed by the spiral net sleeve in the circumferential direction, a circle formed by the pre-stress longitudinal ribs and the circle formed by the spiral net barrel are concentric, and the annular hooping ribs are evenly bound to the outer side of the spiral net barrel from top to bottom. Compared with the prior art, the spiral net barrel of the steel structure of the pre-stress high-strength concrete pipe pile body can greatly increase the anti-shearing bearing capacity of the pre-stress pipe pile, the anti-bending performance is enhanced by the pre-stress longitudinal ribs, meanwhile, the integrality between the pre-stress longitudinal ribs in the pipe pile body can be improved due to match between the spiral net barrel and the annular hooping ribs, and the anti-seismic energy consumption performance is enhanced.

Description

technical field [0001] The invention relates to a steel structure of a building pile, in particular to a steel structure of a prestressed high-strength concrete pipe pile body. Background technique [0002] As a kind of prefabricated pile foundation, prestressed high-strength concrete pipe pile (PHC pile) has high strength of pile body, large vertical bearing capacity of single pile, reliable pile quality, short construction period, low cost per unit bearing capacity, and design The advantages of wide selection range are widely used at home and abroad. At present, my country has some regulations on the design, production and construction of pipe piles, such as GB13476-2009 "Pretensioned Prestressed Concrete Pipe Piles" standard, 03SG409 "Prestressed Concrete Pipe Piles" Atlas, etc. , Guangdong, Shanghai, Zhejiang, Jiangsu, Tianjin, Henan and other places have also formulated local standards according to their own specificity. Most of these codes and standards stipulate ...

AI Technical Summary

Problems solved by technology

At present, the PHC pile products involved in the relevant national regulations and atlases pay more attention to the vertical compressive bearing capacity of pipe piles, but they have not been able to solve these two problems well, thus limiting the application of PHC piles in high-intensity areas. Promote application

Therefore, the level of research in this area still needs to be improved.

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