索支承实腹式钢拱承载性能影响因素分析  

ANALYSIS OF FACTORS FOR THE LOAD-CARRYING PERFORMANCE OF CABLE-STRUT STEEL ARCH

作　　者：李秀敏[1] 石永久[1] 王元清[1] 

机构地区：[1]清华大学土木工程系,北京100084

出　　处：《工业建筑》2007年第5期96-99,共4页Industrial Construction

摘　　要：运用由梁单元、杆单元及索单元组成的混合非线性有限元法对索支承实腹式钢拱结构进行参数分析,从而明确了撑杆数目、撑杆长度、钢索预应力、跨高比等因素对这种结构力学性能的影响,得出了一些有用的结论。Cable-strut steel arch is modeled by beam, truss and cable elements. To make clear the influence of such factors as strut number, strut＇ length, prestress in cable and the rist to span ratio of arch ete on the load-carrying performance of this kind of structure, parameter analysis is carried out with a mixed finite element program, from which some useful conclusions are drawn.

关 键 词：索支承钢拱 预应力钢结构 撑杆 钢索 

分 类 号：TU391[建筑科学—结构工程]