摘要
结合河南卫河大桥工程实例,采用数值分析法中的有限元法,研究各受力参数对单箱三室波形钢腹板PC组合箱梁横向应力的影响;揭示单箱三室波形钢腹板PC组合箱梁在集中荷载和汽车活载作用下,箱梁的横向应力峰值的变化规律。计算数据表明,各室中心线正弯矩区和各腹板加腋处负弯矩区为单箱多室波形钢腹板PC组合箱梁的横向受力最不利位置。
In the engineering case of Weihe Bridge in Henan, series of three-dimensional models have been generated ,which adopt the finite element analysis. From the results, the influences of parameters to girder transverse stress have been studied. The transverse stress under the dead load and the vehicle load is calculated by the finite element soft too. The distribution regularity of the transverse stress is also discussed ,which would be useful in the design of this kind of girder. It is indicated from the results that the middle of the cells and the web armpits are proved to be the worst loading position in this kind of girder.
出处
《重庆交通大学学报(自然科学版)》
CAS
北大核心
2009年第4期652-657,共6页
Journal of Chongqing Jiaotong University(Natural Science)
基金
国家自然科学基金项目(50078014)
关键词
波形钢腹板
单箱多室
横向应力
有限元
corrugated steel webs
multi-cell box girder
transverse stress
finite element