金属拱型波纹屋盖结构弹性稳定承载力公式  

FORMULAS FOR ELASTIC STABILITY LOAD-BEARING CAPACITY OF ARCHED CORRUGATED METAL ROOF

作　　者：张勇[1] 石永久[1] 王元清[1] 刘锡良[2] 

机构地区：[1]清华大学土木系,北京100084 [2]天津大学土木系,天津300072

出　　处：《工业建筑》2001年第12期60-62,共3页Industrial Construction

摘　　要：根据金属拱型波纹屋盖结构的构造及受力特点 ,将其简化成平面拱计算模型并进行了大量的几何非线性分析。通过对分析结构的线性回归 ,给出了不同支承条件、不同矢跨比结构在不同荷载作用下的弹性稳定承载力公式。这组公式不仅适用于金属拱型波纹屋盖结构 。In accordance with the characteristics of the configuration and behavior of arched corrugated metal roof,it was simplified into a kind of plan arch structure in theory.Based on a great deal of geometrical nonlinearity analysis,and linear regressive treatment on the theoretical results,the formulas for the elastic stability load\|bearing capacity of this kind of structure with distinct support conditions,varying rise\|to\|span ratios,and under different loads were derived.These formulas apply to not only arched corrugated metal roof but also to any other kind of circular arch structure.

关 键 词：金属拱型波纹屋盖 承载力 弹性 几何非线性 

分 类 号：TU392.1[建筑科学—结构工程]