dam ›› 2015, Vol. 0 ›› Issue (1): 70-.

Previous Articles     Next Articles

Influence of the age of hydraulic steel gate on its structural safety

JIN Xiao-hua and ZHANG Meng   

  1. Huadong Engineering Corporation Limited of Power China
  • Received:2015-01-05 Online:2015-02-08 Published:2015-02-08

水工钢闸门使用年限对其结构安全的影响分析

金晓华1,张猛2   

  1. 1.中国电建集团华东勘测设计研究院有限公司,浙江 杭州,310014;2.国家能源局大坝安全监察中心,浙江 杭州,310014
  • 作者简介:金晓华(1963-),女,浙江人,高级工程师,从事水工金属结构设计工作。

Abstract: With the age increase of steel gate, defects such as rust, wear, cavitation, crack, deformation, loosen connecting rod, seizure of movable joint would occur. In review of the strength on the corroded and weakened cross section, to modify the allowable stress of structure material, reduction by age is not recommended.

Key words: age, rust, crack, review, reduction

摘要: 随着使用年限的逐渐延长,水工钢闸门会出现锈蚀、磨损、空蚀、裂纹、变形、连接件松动、活动关节咬死等各种各样的缺陷。在对腐蚀削弱后的断面进行强度复核时,不宜采用使用年限折减的方式修正结构材料的容许应力。

关键词: 使用年限, 锈蚀, 裂纹, 复核, 折减