基于无粘结预应力混凝土简支梁动力有限元程序设计  

DYNAMIC FINITE ELEMENT PROGRAMMING OF SIMPLY SUPPORTED UNBONDED PRESTRESSED CONCRETE BEAMS

作　　者：张耀庭[1,2] 饶林珠[1,2] 

机构地区：[1]华中科技大学土木工程与力学学院,湖北汉武433074 [2]华中科技大学控制结构湖北省重点实验室,湖北武汉430074

出　　处：《南阳理工学院学报》2009年第1期36-39,共4页Journal of Nanyang Institute of Technology

摘　　要：本文在预应力砼基本理论和动力有限元分析的基础上,考虑预应力对刚度的影响,进行了无粘结预应力动力有限元的程序设计。对无粘结预应力混凝土简支梁的动力性能,运用所编程序进行了分析计算,计算结果表明,本文所编制的有限元分析程序在简支梁动力有限元分析计算中具有相对较高的精度。Based on the basic theory of finite element and prestressed concrete, finite element modal analysis program about unbonded prestressed simple supported concrete beam in condideration of the effects of the prestressing force on stiffness is developed in this paper. The developed programs are used to calculate the displacement of the unbonded prestressed concrete simple supported beam. Comparing with the experimental result, the precision of the program is verified. The results show that the program has a relatively high accuracy in the dynamic finite element analysis and calculation.

关 键 词：无粘结 混凝土梁 有限元 固有频率 动力响应 

分 类 号：TU378.2[建筑科学—结构工程]