碳/玻混杂纤维筋预应力混凝土梁抗弯性能的有限元分析  

Finite Element Analysis on Bending Characteristics of Prestressed Concrete Beams Reinforced with C/G HFRP Bar

作　　者：吴小军[1] 金广谦[2] 朱国平 赵亚军 

机构地区：[1]73211部队后勤部 [2]解放军理工大学 [3]南京润华市政建设有限公司 [4]苏州市建鑫建筑安装责任有限公司

出　　处：《纤维复合材料》2010年第1期3-7,共5页Fiber Composites

基　　金：国家自然科学基金(50608069)资助

摘　　要：碳/玻混杂纤维增强塑料(HFRP)筋具有单一纤维筋难以企及的优点,本文在试验研究的基础上,介绍了ANSYS有限元软件在预应力HFRP筋混凝土梁非线性分析中的应用,论述了混凝土、HFRP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,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,从而为HFRP筋混凝土的推广应用提供了一条便捷的研究方法。In contrast to the single fiber,hybrid fiber reinforced polymer （HFRP） has better benefit.In the paper,Based on the test results flexural behaviors of HFRP bars reinforced prestressed concrete beams are analyzed by ANSYS software,some problems,include the choice of elements,constitutive equations,the infliction of prestressing force and the process of modeling 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.It is useful method for research and application of concrete beams reinforced with carbon/glass HFRP bars on civil engineering.

关 键 词：碳/玻混杂纤维筋 有限元分析 抗弯性能 预应力混凝土结构 

分 类 号：TU378.2[建筑科学—结构工程]