摘要
介绍了有限元软件ANSYS在预应力FRP筋混凝土梁非线性分析中的应用,论述了混凝土和FRP筋的单元选择、本构关系、预应力施加等问题及建模求解的过程,对一根无粘结预应力FRP筋混凝土试验梁进行有限元分析,得到梁的荷载-变形曲线,通过与试验数据对比验证了模型的可靠性。
The method of nonlinear analysis of prestressed concrete beam with FRP tendons in FEM software ANSYS was introduced. In the paper ,some problems,include the choice of elements,constitutive equations,the infliction of prestressing force and the process of modelling and solving,were discussed. Then the finite element analysis of a unbonded prestressed concrete beam with FRP tendons was made in ANSYS and the load-distortion curve was attained. Comparing with the test data,it indicated that the method was applicable.
出处
《国外建材科技》
2007年第2期56-59,共4页
Science and Technology of Overseas Building Materials
关键词
预应力
FRP筋混凝土梁
非线性
有限元
prestressing force
concrete beam with FRP tendons
nonlinear
finite element
