铝合金毂节点网架在全封闭煤场中的应用  

Application of Aluminum Alloy Hub Node Grid in Closed Coal Yard

作　　者：贾光华[1] 贾思然 JIA Guang hua;JIA Si-ran(Hebei Huadian Shijiazhuang Thermal Power Co.,Ltd.,Shijiangzhuang 0500041,Hebei;Henan Polytechnic University Wanfang Institute of Science and Technology,Zhengzhou 451400,Henan,China)

机构地区：[1]河北华电石家庄热电有限公司,河北石家庄050041 [2]河南理工大学万方科技学院,河南郑州451400

出　　处：《电站辅机》2018年第3期48-51,共4页Power Station Auxiliary Equipment

摘　　要：条形全封闭煤场的屋盖一般采用大跨度拱形桁架结构,拱脚承受的推力较大,因受制于檩条的经济跨度,所以,基础及钢结构的成本占比较大。在某电厂条形煤场封闭改造工程中,屋盖采用了铝合金毂节点网架与张弦桁架的组合结构,减少了拱脚的水平推力,同时,也降低了安装成本,可为煤场的封闭改造方案,提供有益的借鉴。Large span arch truss structure is generally used for roof of strip-shaped closed coal yard. The arch foot bears greater thrust. Because of the economic span of purlin, the cost of foundation and steel structure is larger. In a strip coal yard closed renovation project of a power plant, the roof adopts the composite structure of aluminum alloy hub node grid and string truss, which reduces the horizontal thrust of arch foot, and at the same time reduces the installation cost. It can provide useful reference for the coal yard closed renovation project.

关 键 词：煤场 全封闭 铝合金 毂节点 网架 张弦桁架 钢结构 应用 

分 类 号：TK223.25[动力工程及工程热物理—动力机械及工程]