Wind power tower P&H prestress high strength anchor bolt fracture analysis

Huadian Technology ›› 2016, Vol. 38 ›› Issue (8): 34-36.

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Wind power tower P&H prestress high strength anchor bolt fracture analysis

1.Huadian Zhengzhou Mechanical Design Institute Company Limited, Zhengzhou 450015, China; 2.Huadian Fuxin Energy Corporation Limited, Beijing 100031, China

Online:2016-08-25 Published:2016-10-31

Abstract

Abstract:

Abstract:Anchor bolts for a wind power plant’s P&H prestress pile foundation were fractured after installation. Units were forced to stop, foundation need repair or rebuilt, and caused enormous economic losses. Macroscopic and microcosmic analysis were made, and confirmed that the fracture was caused by insufficient material toughness. Due to inner defect and impurities, stress concentrated partially, and caused crack extended, finally fracture. Material selection standard was discussed, advises were provided for similar projects. 

Key words:

Keywords:wind power, foundation, high strength anchor bolt, fracture

LEI Qinghua1,WANG Jianwen2,WANG Zheng2.

Wind power tower P&H prestress high strength anchor bolt fracture analysis

[J]. Huadian Technology, 2016, 38(8): 34-36.

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Wind power tower P&H prestress high strength anchor bolt fracture analysis

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