Study of design standard for lateral stiffness of railway bridge piers
li yun-sheng1; 2; yan gui-ping3; wang yuan-qing1; zhang yan-ling3(1.school of civil engineering; tsinghua university; beijing 100084; china; 2.school of civil engineering; shijiazhuang railway institute; shijiazhuang 050043; china; 3.school of civil engineering; beijing jiaotong university; beijing 100044; china)
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