摘要
汶川大地震中,大量公路桥梁遭到严重破坏,其中横向抗震挡块的破坏普遍严重。针对桥梁抗震挡块破坏的严重性,归纳了其破坏特征,并提出了应关注的问题;基于我国抗震设计规范对其规定的欠缺,介绍了国外抗震设计规范对挡块的设计要求,并建议国内规范加强相关内容的增订;对现有延性减震挡块的设计方法进行了介绍,以促进延性减震挡块在国内的研究和应用。
Many highway bridges were destroyed in the Wenchuan earthquake, and many lateral seismic shear keys extensively suffered severe damage. In view of the severity of the seismic shear keys＇ destruction, main damage characteristics of the seismic shear keys were summarized, and some concerned issues were proposed. Based on the shortage of present seismic design code in China, the seismic design requirement of shear keys in several overseas seismic bridge specifications were introduced, and it is proposed to prompt the revision and enlargement of current design methods for seismic shear keys. Several ductile seismic shear keys were present in order to promote research and application of ductile seismic shear keys in China.
出处
《世界地震工程》
CSCD
北大核心
2013年第2期90-95,共6页
World Earthquake Engineering
基金
河北省自然科学基金(E2011210028)
作者简介
石岩（1985-），男，博士研究生，主要从事桥梁结构抗震研究．E-mail：syky86@163．com
