摘要
建立钢箱梁桥面铺装三维有限元模型,在最不利荷位研究基础上分析铺装层模量及纵横向力对铺装层受力影响。结果表明:跨中为横向分量最不利荷位,横隔板边缘为纵向最大最不利荷位;上层铺装模量升高可降低层顶的拉应变,下层模量过高会增大层底剪应力;纵向制动力和横向离心力分别会增大铺装纵横向响应。
The three-dimensional finite element model of steel bridge deck pavement was established to analyze the influence law of pavement modulus and longitudinal and transverse force on the stress of pavement based on the research of the most unfavorable load position.The results showed that the most unfavorable load position of the transverse component is in the middle of the span,and the most unfavorable load position of the longitudinal component is at the edge of the diaphragm;The increase of the modulus of the upper pavement can reduce the strain of the top surface,but the high modulus of the lower pavement can increase the shear stress;Longitudinal braking force and transverse centrifugal force can increase the longitudinal and transverse response of pavement respectively.
作者
漆世虎
杜展展
祁浩东
QI Shi-hu;DU Zhan-zhan;QI Hao-dong(Nanjing Urban Construction Management Group Co,Ltd,Nanjing 210006,China;School of Transportation,Southeast University,Nanjing 211189,China)
出处
《建材世界》
2022年第4期53-56,共4页
The World of Building Materials
关键词
钢桥面铺装
力学响应
有限元分析
弯坡组合
模量
steel deck pavement
mechanical response
finite element analysis
curved slope combination
modulus
