摘要
通过在钢管上施加均布面荷载和对混凝土施加温度荷载分别模拟钢管初应力和混凝土自应力,利用ANSYS有限元程序建立钢管混凝土构件实体模型,分析钢管初应力和混凝土自应力对钢管混凝土构件承载力影响规律,在此基础上拟合钢管混凝土构件承载力计算公式,相对于数值结果而言,该拟合计算公式具有较高的精度。
This paper simulates initial stress of steel tubes and self-stress of concrete by applying load of uniformly distribution surface and applying temperature load on concrete, establishes the entity model of concrete-filled steel tubular members by means of ANSYS finite element, and analyzes the laws of influences of initial stress of steel tubes and self-stress of concrete on concrete- filled steel tubular members, and on this basis fits computational equation for bearing capacity of concrete-filled steel tubular members. Relative to numerical result, this fitted computational formula has higher accuracy
出处
《公路交通技术》
2014年第3期59-65,共7页
Technology of Highway and Transport
基金
重庆市教委科技项目(KJ120412)
关键词
钢管混凝土
钢管初应力
混凝土自应力
承载力分析
承载力计算公式
steel tube concrete
initial stress of steel tube
self-stress of concrete
analysis of bearingcapacity
computational equation for bearing capacity
