A PARAMETRIC ULTIMATE STRENGTH FEA INVESTIGATION ON CONCRETE DECK OF A REAL BOWSTRING ARCH STEEL-CONCRETE COMPOSITE BRIDGE

摘要：

Concrete deck of bowstring arch steel-concrete composite bridges sustains huge general axial tensile stress under structural gravity (dead load) and local bending and shearing stresses under wheel loads (live load). In such a complex mechanical status, concrete deck may be tensiled to the extent of cracking. Meantime, wheel load must be transmitted through the tensiled or even cracked concrete deck. Consequently, ultimate strength of concrete deck of such bridges is an engineering problem which is worthy of researching. In this paper a parametric ultimate strength FEA comparative investigation on concrete deck of a real bowstring arch steel-concrete composite bridge was done. Several parameters, such as axial tensile stresses, reinforcement ratio, pre-crack of concrete deck, shear reinforcement ratio and concrete strength class etc., were considered. Some valuable conclusions for practical civil engineering were drawn finally.

关键词： Concrete deck bowstring arch steel-concrete composite bridge stress FEA

作者: Ru-Deng Luo

作者单位: School of Civil Engineering and Architecture,Central South University,Changsha 410075,P. R.China

会议类型: 国际会议

会议名称: The 4th Internatiuonal Symposium on Lifetime Engineering of Civil Infrastructure(第四届土木工程结构生命周期国际学术研讨会)

会议地点: 长沙

会议语种:英文

页码: 776-781

在线出版日期: 2009-10-26（万方平台首次上网日期，不代表论文的发表时间）