低预应力装配式方钢管拱结构受力性能分析

Performance Analysis of Lower-Prestressed Fabricated Latticed Arch of Square Steel Tubes

低预应力装配式方钢管拱结构是一种新型的结构型式 .结构中下弦相间节点间所设的预应力拉筋 ,可以增强结构的整体刚度 ,减小支座水平推力 .通过对该结构在不同荷载及不同跨度等参数作用下的受力性能进行分析认为 ,该结构不仅构造简单、造型美观、加工安装方便 ,而且受力性能也很好 .

The lower prestressed fabricated arch is a new type of latticed steel structure made up of square steel tubes.It can be easily made in the factory and be fabricated very conveniently in the site.The tension elements located along with the lower chords every two joints are steel bars,to which the prestress is applied so as to improve the rigidity of the structure.The static behavior of the structure under various loads is studied,which indicates that the structure has a good load bearing character,and that the structure is available and practical.