严  慧   罗尧治   赵  阳   董石麟
 （浙江大学土木系  杭州 310027）

[提要]  对所提出的一种新型预制四角锥轻型网架结构体系，从理论分析、足尺模型试验及工程应用等方面进行了系统、详细的分析研究。研究表明，该结构体系制作安装方便，成本低，具有明显的技术经济效果，为中小跨度的建筑提供了一种简易可行的新型网架结构体系。
[关键词]  预制四角锥  网架  结构体系

A new type of light-weight space truss consisting of prefabricated pyramidal units is presented. The new structural system is studied in detail through theoretical analysis,full-scale model test and engineering application. Research results show that, this system is easy to manufacture and erect,its cost is lower than ordinary space truss,it has obvious technical economic effect and provides a feasible space truss system to middle-span or small-span structure.
Keywords:  prefabricatecl pyramidal unit; space truss; structural system