张弦梁结构若干参数对承载性能的影响分析  

EFFECTS OF SOME PARAMETERS ON MECHANICAL PERFORMANCE OF THE BEAM STRING STRUCTURE

作　　者：蒋友宝[1] 冯健[2] 蒋剑锋[2] 孟少平[2] 

机构地区：[1]长沙理工大学桥梁与结构工程学院,长沙410076 [2]东南大学土木工程学院,南京210096

出　　处：《工业建筑》2008年第1期103-105,共3页Industrial Construction

基　　金：国家自然科学基金资助项目(50478075);江苏省自然科学基金资助项目(BK2003061)

摘　　要：张弦梁结构已在我国大型工程中有所应用,但对该种结构的理论研究并不完善。通过分析在全跨荷载或半跨荷载作用下,初始缺陷、矢跨比、垂跨比和预应力水平对结构承载性能的影响,得出拱矢跨比基于承载性能的最优值。对张弦梁结构的设计具有有益的参考。Beam-string structures have been adopted in several large-span structures. However, theoretical analysis Of this kind of structures has not been well established. The effects of the imperfections, rise-span ratio, sag-span ratio and prestressing value on the mechanical performance are researched under uniform full-span load and half-span load. So the optimal rise-span ratio of the arch is obtained. These conclusions provide some useful suggestions for the design of beam-string structures.

关 键 词：张弦梁结构 缺陷 矢跨比 垂跨比 预应力 

分 类 号：TU399[建筑科学—结构工程]