预应力FRP筋混凝土梁的非线性有限元分析  

NONLINEAR FINITE ELEMENT MODELIG OF PRESTRESSED CONCRETE BEAM WITH FRP TENDONS

作　　者：王作虎[1] 杜修力[1] 詹界东[1] 邓宗才[1] 

机构地区：[1]北京工业大学建筑工程学院,北京100124

出　　处：《玻璃钢／复合材料》2010年第2期3-6,21,共5页Fiber Reinforced Plastics/Composites

基　　金：北京市教委基金(4700001401509);国家自然科学基金(50678011)

摘　　要：FRP作为一种新型高性能的结构材料,具有轻质、高强和抗腐蚀等特点,在土木工程中是一种具有发展前景的新型预应力筋用材。本文详细介绍了有限元软件ANSYS对预应力FRP筋混凝土梁的建模过程,并且将分析结果与体内有粘结和体内无粘结预应力FRP筋混凝土试验梁的试验结果进行了比较,验证了模型的可靠性。As a new structural material, FRP （fiber reinforced plastics）features light weight, high strength, corrosion resistance,etc., which has a bright future when used for a new type of prestressing tendon in engineering structures. This paper introduces how to use ANSYS in building the finite element modeling of pretressed concrete beam with FRP tendons. Then the finite element analysis of a bonded and 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.

关 键 词：预应力混凝土梁 FRP筋 非线性 有限元 

分 类 号：TU528.57[建筑科学—建筑技术科学]