锈蚀槽钢梁受弯性能研究
Study on bending performance of corroded channel steel beams
Received:April 10, 2018  Revised:September 01, 2018
DOI:10.7520/1001-4888-18-073
中文关键词:  锈蚀  槽钢梁  受弯试验  承载力计算
英文关键词:corrosion  channel steel beam  bending test  calculation of bearing capacity
基金项目:国家十三五重点研发计划课题(2016YFC0701305)
Author NameAffiliation
XU Shan-hua* Xi'an University of Architecture and Technology, Civil Engineering, Xi'an 710055, Shanxi, China 
ZHANG Hai-jiang Xi'an University of Architecture and Technology, Civil Engineering, Xi'an 710055, Shanxi, China 
BAI Ye Dongling Real Estate Agency, Baoji 721000, Shanxi, China 
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中文摘要:
      通过7根锈蚀槽钢构件的受弯试验,研究了锈蚀对槽钢梁受弯性能的影响。试验研究表明:锈蚀槽钢梁的承载力与残余翼缘厚度具有良好的线性关系,残余翼缘厚度可以用来表征锈蚀程度的大小。锈蚀槽钢梁的荷载-挠度曲线和弯矩-曲率曲线可大致分为两个阶段:弹性阶段和弹塑性阶段;有些试件的曲线在加载初期有较小的斜率。在试验研究的基础上,提出了锈蚀槽钢梁基于残余翼缘厚度和锈蚀率的承载力计算公式;计算公式具有较好的可靠度。
英文摘要:
      The effects of corrosion on bending performance of channel steel beams were studied through the bending test of 7 corroded channel steel members. The experimental results show that the bearing capacity of corroded channel steel beam has a good linear relationship with the residual flange thickness, and the residual flange thickness can be used to characterize the degree of corrosion. The load-deflection curves and moment-curvature curves can be roughly divided into two stages: elastic stage and elastic-plastic stage. The curves of some specimens have small slopes at the beginning of loading. According to the experimental study, the formula of bearing capacity based on residual flange thickness and corrosion ratio is proposed. The formula has enough reliability.
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