斜拉网格结构的结构形式、应用及特性在国内的研究进展

Domestic development of structural configurations,applications and properties of cable-stayed spatial grid structures

斜拉网格结构是目前应用较为广泛的刚柔混合结构体系之一,由塔柱、拉索、网格结构组合而成。系统的对该类结构体系在我国的发展进行了回顾及展望。首先,对该混合结构的结构形式发展及部分工程应用进行了介绍;之后,分别回顾了斜拉平板网架结构和斜拉空间网壳结构的结构特性研究,从考虑结构几何非线性,参数振动和模态跃迁等因素,突出分析了斜拉空间网壳结构复杂的动力特性行为;最后,分析尚存的问题,对今后的发展进行了展望。

A cable-stayed spatial grid structure,composed of pylons,inclined cables and a spatial grid structure, is one kind of rigid-flexible-mixed-structures which are used widely.Here,the mixed-structure's development in China was elaborated systematically.Firstly,the structural configuration development and part engineering applications were introduced. Then,the studies on structural specialties of cable-stayed flat-plate grid structures and cable-stayed reticulated shell structures were reviewed,and the dynamic characteristics of cable-stayed reticulated shell structures from aspects of structural geometrical nonlinearity,parametric vibration and mode jumping were analyzed.Based on the above studies,remained issues and prospects for the mixed-structure' s developments were put forward at the end.