Abstract

Bolt connection is a usual connection in power transmission and power transformation steel structures, and preservative treatments such as rust removal and galvanization are adopted to protect the bolts. In order to investigate the influence of hot-dip galvanizing on the tensile strength of bolt, common strength bolts and high strength bolt produced in four factories were tested to gain tensile strength. The results indicate that hot-dip galvanizing may reduce the tensile strength of bolts, and galvanizing technics of different factory have difference influence on the tensile strength of bolts.

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