节点文献
预应力混凝土连续箱梁底板崩裂破坏的机理及其对策
Mechanism and Prevention Countermeasures of Cracking for Bottom Slab in a Continuous Prestressed Concrete Box Girder
【摘要】 对某主跨为85 m预应力混凝土连续箱梁桥的合龙段底板崩裂情况进行了调查与分析,运用BAP、ANSYS等有限元软件进行了仿真模拟,分析了箱梁底板混凝土崩裂的机理,并提出了处理类似问题的对策。
【Abstract】 The cracking situation of the bottom slab of the closing segment of a continuous prestressed concrete box girder with 85m main span is investigated and analyzed.Using the finite element software,such as BAP and ANSYS,structural simulation is presented.The cracking reason of the bottom slab of box girder is analyzed.Some countermeasures to the similar accidents are proposed.
【关键词】 连续箱梁桥;
底板崩裂;
曲率效应;
应力集中;
【Key words】 continuous box girder; bottom slab creaking; curvature effect; stress concentration;
【Key words】 continuous box girder; bottom slab creaking; curvature effect; stress concentration;
- 【文献出处】 结构工程师 ,Structural Engineers , 编辑部邮箱 ,2007年02期
- 【分类号】U448.213
- 【被引频次】52
- 【下载频次】413