超大跨度网络拱结构的分析

Analysis of long-span network arch structure

网络拱结构系由上弦拱、下弦杆及交叉倾斜的系杆组成的一种新型结构形式.本文阐述了网络拱结构的特点及分析原理,提出了一个网络拱结构的简化分析方法,并举例以说明其应用.最后对网络拱在大跨度建筑屋盖中的开发应用提出了一些设想和方案.

Network arch structure is a new type of structure composed of upper chord arch, lower chord members and diagonal members. This paper deals with main features and analysis principles of network arch structures. A simplified analytical method is proposed and a numerical example is given for reference in practical design. Prospects for the application of the network arch in long-span roof structures are presented at the end of the paper.