High speed railway construction is an epoch-making project in the field of infrastructure construction in China,the mutual spanning between railways is common in construction,in which the steel structure beam is widely used.The processing and assembly of steel structure beam can be completed in the field or on-site during the construction,a larger span can be realized,the operation is safe and the construction quality is guaranteed.In hoisting operation,the lifting and falling of beams can be performed within a short time,and the construction process is simple.Except for large-scale hoisting equipment,there are few other temporary measures and less interference to the existing line driving.This paper mainly studies and analyzes the hoisting construction technology of the portal pier large-span steel beam across the existing line.
关键词
门式墩/大跨度钢横梁/既有线吊装施工
Key words
portal pier/large-span steel beam/existing line hoisting construction
维普
万方数据