【作者】 王作虎； 杜修力； 邓宗才； 詹界东； 高艳；

【Author】 Wang Zuohu~1 Du Xiuli~1 Deng Zongcai~1 Zhan Jiedong~1 Gao Yan~2 (1.School of Civil Engineering,Beijing University of Technology Beijing 100124; 2.Beijing Pake International Engineering Consulting Ltd.Beijing 100022)

【机构】 北京工业大学建筑工程学院； 北京帕克国际工程咨询有限公司；

【摘要】 FRP筋作为一种新型的预应力筋用材,由于无粘结预应力FRP筋与周围混凝土之间没有粘结,所以分析无粘结预应力FRP筋混凝土梁要比有粘结的混凝土结构复杂得多。已有的文献都是基于一定试验数据的半经验半理论公式,这些公式对于其他独立试验梁的计算精度往往不太理想。本文详细介绍和比较了有限元软件ANSYS对无粘结预应力FRP筋混凝土梁的各种建模分析方法,并且将分析结果与试验结果进行了比较,验证了模型的可靠性。更多还原

【Abstract】 As a new type of prestressing tendon,the analysis of beams prestressed with unbonded FRP tendon is much more complicated than that of bonded concrete beams,because the strain compatibility between FRP tendon and its adjacent concrete is no longer valid.Unfortunately,most of the previous literature were based on the experience derived from data of large amounts of experimental beams,which are unprecise to other independent beams.This paper introduces how to use ANSYS in building the finite element modeling of unbonded pretressed concrete beam with FRP tendons.Comparing with the test data,it indicated that the method was applicable.更多还原