摘要
根据张弦桁架结构的受力性能和构造特点,利用ANSYS软件中的仿真功能,并充分考虑柔性索和桁架的结合,详细探讨了矢跨比、垂跨比、撑杆数目、预应力值大小等参数对结构地震响应的影响。结果表明:矢跨比、垂跨比对结构地震响应影响较大,撑杆数目、预应力值对结构地震响应影响较小。
Making use of the simulation function of ANSYS software and taking the combination of flexible cable and truss into account fully,the influence of the rise-span ratio,the sag-span ratio,the numbers of pole and the prestress for seismic response of structure are discussed in detail according to the force properties and structural characteristics of the truss string.The results show that the influence of the rise-span ratio and the sag-span ratio to the earthquake response is great,but the influence of the numbers of pole and prestress to is little.
出处
《钢结构》
2010年第3期37-40,44,共5页
Steel Construction
关键词
张弦桁架
地震波
矢跨比
垂跨比
撑杆数
预应力
truss-string structure
seismic waves
rise-span ratio
sag-span ratio
numbers of pole
pre-stress
