Building pipe pile with built-in reinforcing ribs
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- 泉州市哦加斯科技有限公司
- Publication Date
- 2021-01-12
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Abstract
Description
technical field
[0001] The invention belongs to the field of building construction, and in particular relates to a building pipe pile with built-in reinforcing ribs. Background technique
[0002] At the end of the 1960s, the Fengtai Bridge Factory of the Ministry of Railways began to produce pre-tensioned prestressed concrete pipe piles, which were mainly used for the foundation construction of railway bridge projects; in the 1970s, post-tensioned prestressed concrete pipe piles were developed and produced. Since the 1970s, Especially in the construction of Shanghai Baoshan Iron and Steel Works, a large number of steel pipe piles imported from Japan were used. Not only the cost is high, but the durability is also poor. Concrete PC pipe piles, prestressed concrete thin-walled pipe piles and high-strength prestressed concrete pipe piles, pretensioned prestressed pipe piles are hollow cylindrical slender concrete made by pretensioning prestressing technology and centrifugal for...