中文摘要：

点支式玻璃幕墙鱼腹式索桁架结构由于其轻盈、通透的特点得到了广泛的应用，其一般都是对称支承布置。当结构由对称支承变为非对称支承时，由于其抵抗不对称变形的能力较弱，结构的力学性能会发生较大的改变，需要作进一步的探讨。为此结合江苏信息大厦玻璃幕墙鱼腹式索桁架工程，采用了模型试验和理论分析的方法，对该鱼腹式索桁架结构在非对称支承条件下静动力性能进行了研究，并得到可供设计参考的风振系数建议值。

英文摘要：

Fish-bellied cable truss of point supported glazing has been widely used for the characters of lightness and transparency. And commonly it is systematically supported, when additional support is added, the structure is turned from symmetrical support into unsymmetrical support, the mechanical performance will be changed greatly because of its weak ability to resist unsymmetrical deformation, and more discussion will be needed. Therefore it was made that the static and dynamic performance of cable truss under unsymmetrical support with model experiment and theoretical analysis. At last it was given the referenced wind-induced vibration coefficient for design.