考虑滑移效应的体外预应力组合梁非线性有限元分析  

Nonlinear Finite Element Analysis on Steel and Concrete Composite Beams Under Slip Effect

作　　者：孙宾 

机构地区：[1]中石化上海工程有限公司,上海200120

出　　处：《化工设计》2007年第4期42-44,共3页Chemical Engineering Design

摘　　要：通过有限元软件ANSYS对体外预应力组合梁进行非线性分析,采用COMBIN39单元模拟栓钉的抗剪性能以考虑组合梁的滑移效应。计算结果与试验值吻合较好。对比分析不考虑滑移效应的组合梁的受力性能,结果表明,组合梁的滑移效应使梁的承载力降低,而变形增加。ANSYSis used to analyze the nonlinear capability of steel-concrete composite beams prestressed with external tendons,and pin is simulated by the element COMBIN39 to study the slip effect of composite beams.The calculations are consistent with the test results.And also the composite beams without slip effect is contrasted,the results indicate that the slip effect reduces the bearing capacity and increases the displacement of the composite beams.

关 键 词：ANSYS 组合梁 滑移效应 非线性 

分 类 号：TU378[建筑科学—结构工程]