张弦梁(桁架)结构荷载态受力性能分析

Study on structural behavior of the beam (truss) stringstructures under load

本文分析了张弦梁(桁架)结构在使用阶段的受力性能,着重讨论了在最不利工况下,初始预应力幅值、矢高比与垂跨比、拱截面惯性矩(桁架截面高度)和撑杆间距及数目等四个参数对张弦梁(桁架)结构受力性能的影响,这四个参数也倍受工程设计人员的关注,最终本文得出了一些实用性结论.

<Abstrcat> In this paper the structural behavior of the beam (struss)string stuctures under load is studied. The effects of four parameters such as prestress of cable, rise-span ratio of arch and rag-span ratio of cable, moment of inertia of arch (height of truss section), and the number of struts, on behavior of the structures are discussed in detail, which are concerned by designers particularly. Finally, some available conclusions are obtained.