摘要
介绍了一种新型的双层错位圆环形桁架,其由上下两层错位布置的圆环及连接竖杆、边桁架组成。该桁架体系基于圆环良好的套箍效应组成上下两层刚性膜,通过连接竖杆连通上下组成有机整体而共同受力。基于该受力原理及具体工程项目设计资料,对支座约束条件、高跨比、环径比、节点横隔板布置、吊装工艺及施工验算等给出了建议,为该类结构的设计和施工提供了有益的参考。
Introduces a new type of double-layer staggered ring truss,which contains three major parts:a two-layer staggered ring,con‐nected vertical rods and side trusses.The establishment of the truss system is based on the hoop effect of the ring,thus forming two layers of rigid membrane.The membranes and the vertical connecting rods are combined together to carry the loads as an organic whole.Based on the mechanical principle and the design data of specific engineering projects,gives some suggestions on the constraint conditions of the sup‐port,the depth-span ratio,the aspect ratio,the arrangement of the node diaphragm board,the hoisting technology and the checking calcula‐tion of the construction.At the meanwhile,it provides a useful reference for the design and construction of the structure.
作者
欧旻韬
陈星
OU Mintao;CHEN Xing(、Guangdong Architectural Design&Research Institute Co.,Ltd.Guangzhou 510010,China;、Guangdong Engineering Exploration&Design Association Guangzhou 510010,China)
出处
《广东土木与建筑》
2021年第7期37-40,共4页
Guangdong Architecture Civil Engineering
关键词
双层错位圆环形桁架
古钱币形状
刚性膜
数值模拟
double-layer staggered ring truss
ancient coin shape
rigid membrane
numerical simulation
