【摘要】 国内对点支式玻璃幕墙索桁架支承体系的自振性能研究较少。基此,利用ANSYS软件对索桁架的自振特性进行了探讨,并讨论了索桁架布置形式、拉索截面积、索桁架矢高、撑杆截面积、拉索预应力、索桁架跨度等因素对其自振频率的影响,得到了一些有实用意义的结论。这些结论对该种结构抗风、抗震设计及主次结构共振分析具有指导意义。更多还原

【Abstract】 The research on dynamic characteristics of cable truss support system is limited.By resorting to ANSYS software,the dynamic characteristics for point-supporting glass curtain were researched.And something that affect its natural frequency,such as the layout of cable truss,the sectional area of cable,the height of cable truss,the sectional area of bar,as well as the prestress of cable and the span of cable truss were discussed.Some practical conclusions were gained.These conclusions are of guiding significance for anti-wind and anti-earthquake design of this structure as well as the analysis of the anti-resonance of main and sub-main structures.更多还原