摘要
针对无粘结预应力混凝土梁中的预应力钢筋与混凝土之间没有粘结,二者应变不协调,采用传统的平均应变平截面假定理论无法正确分析梁的工作性能,给相关研究带来了一定困难的情况,采用非线性有限元分析的方法,从材料本构关系、单元选、模型建立等方面介绍了无粘结预应力混凝土梁的模拟分析过程,并将模拟分析结果与模型试验结果进行了对比分析,以供相关研究参考.
There is no bond between unbonded prestressed concrete beam and concrete, the strain of them is uncoordinated. The average strain plane section assumes theory can not correctly analyze the operating performance of the beam, which brought some difficulties to the relevant research. Using nonlinear finite element analysis method, the simulation analysis process of unbonded prestressed concrete beams was introduced from the aspects of the material constitutive relation, unit selection, modeling, etc. The simulation results were compared with model test results, to provide a reference for related research.
出处
《沈阳大学学报（自然科学版）》
CAS
2012年第3期75-77,86,共4页
Journal of Shenyang University：Natural Science
基金
辽宁省高等学校科学研究资助项目(2008476)
关键词
无粘结
预应力混凝土
有限元
unbonded
prestressed concrete
finite element
