典型文献
Fatigue evaluation of steel-concrete composite deck in steel truss bridge—A case study
文献摘要：
An innovative composite deck system has recently been proposed for improved structural performance.To study the fatigue behavior of a steel-concrete composite bridge deck,we took a newly-constructed rail-cum-road steel truss bridge as a case study.The transverse stress history of the bridge deck near the main truss under the action of a standard fatigue vehicle was calculated using finite element analysis.Due to the fact that fatigue provision remains unavailable in the governing code of highway concrete bridges in China,a preliminary fatigue evaluation was conducted according to the fib Model Code.The results indicate that flexural failure of the bridge deck in the transverse negative bending moment region is the controlling fatigue failure mode.The fatigue life associated with the fatigue fracture of steel reinforcement is 56 years.However,while the top surface of the bridge deck concrete near the truss cracks after just six years,the bridge deck performs with fatigue cracks during most of its design service life.Although fatigue capacity is acceptable under design situations,overloading or understrength may increase its risk of failure.The method presented in this work can be applied to similar bridges for preliminary fatigue assessment.
文献关键词：
中图分类号：
作者姓名：
Huating CHEN;Xianwei ZHAN;Xiufu ZHU;Wenxue ZHANG
作者机构：
Faculty of Urban Construction,Beijing University of Technology,Beijing 100021,China;Tai'an High-tech Industrial Development Zone Management Committee,Tai'an 271000,China
文献出处：
引用格式：
[1]Huating CHEN;Xianwei ZHAN;Xiufu ZHU;Wenxue ZHANG-.Fatigue evaluation of steel-concrete composite deck in steel truss bridge—A case study)[J].结构与土木工程前沿,2022(10):1336-1350
A类：
overloading,understrength
B类：
Fatigue,evaluation,steel,concrete,composite,deck,truss,case,study,An,innovative,system,has,recently,been,proposed,improved,structural,performance,To,fatigue,behavior,took,newly,constructed,rail,cum,road,transverse,stress,history,near,action,standard,vehicle,was,calculated,using,finite,element,analysis,Due,fact,that,provision,remains,unavailable,governing,code,highway,bridges,China,preliminary,conducted,according,fib,Model,Code,results,indicate,flexural,failure,negative,bending,moment,region,controlling,mode,life,associated,fracture,reinforcement,years,However,while,top,surface,cracks,after,just,six,performs,during,most,its,design,service,Although,capacity,acceptable,situations,may,increase,risk,method,presented,this,work,can,applied,similar,assessment
AB值：
0.530915
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