双曲扁壳薄膜内力的计算  

作　　者：赵青 伍卫秀[2] 虞锦晖[2] 

机构地区：[1]中外建设计与顾问有限公司,北京100044 [2]南昌大学建筑工程学院,南昌330029

出　　处：《建筑知识：学术刊》2013年第B01期21-22,24,共3页Architectural Knowledge

摘　　要：为便于计算双曲扁壳的内力，不少学者提出各种不同的简化方法。但它们中有些由于含有收敛很慢的无尽级数，计算工作较为繁重；而另外有些方法，虽然计算相对较简便，但其精确度不太理想。在薄膜理论的基础上，本文介绍了四边支承双曲扁壳内力计算方法，与规程计算结果相比，具有足够的精确度且较为简便。In order to make it more convenience in calculation of internal forces of double currature shallow shells,varies simplified approaches have been worked out by many experts.As a matter of fact,the calculation work for some of them is still strenuous,becauseit contains very slow convergence infinite series in computing expressions.Others approaches seem to be simple,but it＇s precision is inadequate even from the view of engineering.On the basis of membrane theory ,a simplified method for double curvature shallow shells supported on four edges is presented in this paper.Compared with results obtained from ＂Specification for design of reinforced concrete shell structures＂, this approach is adequately accurate and relatively simple.

关 键 词：双曲扁壳 无尽级数 法向力 剪力 

分 类 号：TU312.1[建筑科学—结构工程]