新型轻钢房屋体系楼盖梁受力性能研究  

Study of mechanical behavior of floor beams in new light-weight steel housing system

作　　者：陈焰周[1] 曾德伟[2] 郭耀杰[2] 徐厚军[1] 沈鑫 

机构地区：[1]中南建筑设计院股份有限公司,湖北武汉430071 [2]武汉大学土木建筑工程学院,湖北武汉430072 [3]迈特建筑科技(武汉)有限公司,湖北武汉430064

出　　处：《武汉大学学报（工学版）》2011年第3期349-352,361,共5页Engineering Journal of Wuhan University

摘　　要：采用试验和有限单元法对冷弯薄壁型钢房屋体系楼盖梁的受力性能进行了分析.在有限元模型中,采用塑性壳单元,考虑材料非线性和几何非线性影响,拉铆钉连接采用耦合模型.首先对代表性楼盖梁的试验和有限元分析进行全面比较,验证了本文给出的有限元模型能够准确分析楼盖梁的受力性能.然后采用有限元分析了不同高度、跨度楼盖梁的受力性能.最后给出了各种规格的楼盖梁极限均布线荷载,供工程设计应用.Tests and the finite element method have been carried out to study the mechanical behavior of floor beams in the new light-weight steel housing system.A group floor beams have been tested to obtain ultimate bearing capacity.And then finite element model of floor beams,using plastic shell element in ANSYS and considering material and geometric nonlinearity,has been established to analyze their bearing behavior.Finally,the ultimate line-uniform loads are given for the various specifications of floor beams,for practical engineering design.

关 键 词：冷弯薄壁型钢 楼盖梁 试验 非线性有限元 受力性能 

分 类 号：TU392.1[建筑科学—结构工程]