背栓式石材幕墙支承点处受力的有限元分析  

Finite element analysis on stress of supporting point for back-bolt stone curtain wall

作　　者：张建军[1] 宋海罡[1] 张晓东[1] 孙华东[1] 

机构地区：[1]中北大学,山西太原030051

出　　处：《门窗》2007年第7期4-7,共4页Doors & Windows

摘　　要：背栓式石材幕墙承受垂直于板面的均布荷载时,背栓开孔周围分布着较大的集中应力,显著影响着石材幕墙的承载能力。目前国内外对于点支承玻璃板孔边应力的研究较多,但关于背栓式石材幕墙背栓开孔应力的研究尚不多见。本文利用有限元方法求解四点背栓式支承石材幕墙背栓开孔处的最大应力,讨论了孔边最大应力对于石材幕墙承载能力的影响,讨论了背栓开孔直径、深度及石材厚度对于孔边应力的影响,为背栓式石材幕墙的设计提供了理论依据。When loaded with lateral pressures, the back-bolt stone panel possesses relatively large concentrating stresses around its holes. The stress distribution around holes affects the bearing capacity greatly. Correlated studies are mainly focused on the pointsupported glass units. Now studies focused on the back-bolt stone units are few at home and abroad. The paper calculates the maximum round-the-bole stresses of the back-bolt stone curtain units with finite element method , and discusses its effect on the bearing capacity. The influences of the diameter, deepness of back-bolt hole, and the thickness of the stone panel on the around-thehole stresses are discussed. Theoretical advices are offered for design.

关 键 词：石材幕墙 背栓式 支承点 有限元分析 开孔直径 受力 集中应力 承载能力 

分 类 号：TU754.4[建筑科学—建筑技术科学]