摘要
发展高速铁路需采用100 m长定尺钢轨,鞍钢在原有50 m长的生产基地上需将厂房跨度扩大至最大56.05 m,而且要边生产边施工条件下完成新生产线工艺改造。通过多方案比较,选用了抗弯、抗扭等力学性能优异的空间管桁架新型结构形式,高强管桁架腹杆与弦杆相贯连接不用节点板且节约钢材。目前,国内尚属首次在工业厂房中应用该形式。设计计算采用了与结构实际做法相近的计算模型,而使计算更为简捷真实、有效。为大跨度重工业厂房的屋面设计提供了类似结构设计参考。
The length of 100 m rail is needed in the development of high-speed railway,The original production bay of 50 m was designed to extended to 56.05 m in Angang group.Yet the production must be going during construction time.Through a multi-propose comparison,a new type of steel structure is used,which is three-dimensional pipe truss,and it has an excellent mechanical properties from bending and twisting specialty.The rod in this kind of high-strength tube truss should be directly welded,and the node plates are not needed,so the material used for node plates normally are saved.At present,this kind of steel structure is the first time to use in the industry building.A calculation model similar to actual structure is used in design,so that the calculation is more simple and more actual even more effective.It should be used for a reference in similar structure design.
出处
《工业建筑》
CSCD
北大核心
2009年第S1期546-549,共4页
Industrial Construction
关键词
大跨度结构
管桁架
高强钢管
long-span structures
pipe truss
high-strength steel tube
