输电杆塔结构体系主要失效模式识别的计算程序研发  

DEVELOPMENT OF CALCULATION PROGRAM FOR IDENTIFYING MAIN FAILURE MODES OF TRANSMISSION TOWER SYSTEM

作　　者：董黛[1] 侯建国[1] 肖龙[1] 安旭文[1] 李茂华[2] 

机构地区：[1]武汉大学土木建筑工程学院,武汉430072 [2]中国电力科学研究院,北京100055

出　　处：《工程力学》2013年第8期180-185,198,共7页Engineering Mechanics

摘　　要：对大型复杂结构进行体系可靠性分析时,识别结构体系的失效模式是体系可靠性分析的首要核心工作。针对大型复杂结构体系失效模式识别的难点问题,利用ANSYS软件高效的可视化建模及结构有限元分析求解的功能和MATLAB软件强大的科学计算及易与其他程序接口的特点,基于搜寻结构体系主要失效模式的阶段临界强度分枝——约界法的基本原理,编制了适用于输电杆塔结构体系主要失效模式识别的计算程序,并将其成功应用于某实际工程输电杆塔结构体系主要失效模式的搜寻,结果表明,该程序可以准确高效地进行输电杆塔结构体系主要失效模式的识别,为进行输电杆塔结构体系的可靠度分析奠定了基础。When analyzing the reliability of a large-scale and complicated structural system, the principal task of reliability analysis on the structural system is identifying the failure modes of the structural system. Aiming at the difficulties of identifying the failure modes of a large-scale and complicated structural system, one program for the failure mode identification of a transmission tower system is presented, based on the stage critical strength branch-and-bound principle. This program takes the advantage of the efficient visual modeling and finite analysis function of ANSYS and combines with the characteristics of MATLAB including powerful scientific computing and being easy to form a programming interface. Finally, this program is successfully used in the analysis of a practical engineering case, the results prove that this program is effective and feasible for identifying complicated structural failure modes and provide a basis for the reliability analysis of a transmission tower system.

关 键 词：输电杆塔结构体系 失效模式 阶段临界强度分枝-约界法 MATLAB ANSYS 

分 类 号：TU312.1[建筑科学—结构工程]