Design formulas for stability analysis of reticulated shells

摘要

The aim of the paper is to propose some kind of design formulas for stability analysis of single-layer reticulated shells,reflecting the recent advances in theoretical study but simple in form for the convenience of practical application.For this purpose a comprehensive parametrical analysis of stability behaviors of single-layer reticulated shells of different types with various geometric and structural parameters has been carried out based upon complete load-deflection response analysis with consideration of the effects of initial imperfections and unsymmetrical distribution of loads..More the 2800 examples of reticulated shells of prototype were analyzed,and the plentiful results obtained were thoroughly studied.As a result,practical formulas for predicting limit loads of reticulated domes,reticulated vaults with different supporting conditions,as well as reticulated shallow shells,obtained by regression analysis,were proposed.