穹顶网壳的优化形体和试验分析

OPTIMAL FORMS OF GRID DOME AND ITS TEST ANALYSIS

本文研讨方格形网格穹顶的优化形体在实际工程中的应用问题。当具有不规则建筑边界的情况下，经典的薄壳穹顶常常不能满足建筑师和结构工程师的设计构思。采用倒置索网形成的网壳结构能妥善地解决上述问题，并且相当程度上得出了实用的优化结构。

Abstract In this paper,the optimal forms of grid dome in practice are presented.The classical dome shell struetures covering some lrregular boundarys often seem not to be saitisfied for creative architects and engineers. Thecahle net form finding niethod controlling lower,tress level within the system makexit possible to furnish with awide range of optimal soltition。Two exampltes of such grid domes,recent ly designed and constructed are explained.MOdel tests as well as the nonlinear analysis show that the inversed cable net grid domes are much supe-rior to the md,thmatical configuldated shells.