Construction Scheme Comparison and Key Construction Technology of a Traffic Center Steel Roof
The steel roof structure of Chongqing East Railway Station Traffic Center adopts orthogonal three-dimensional truss,which is a tall spatial structure with high middle and low sides.The lower support of the roof adopts tree-shaped column,branch column and straight pipe column,and there are many forms of support system,complex modeling,novel structural form,many limited factors in construction scheme selection and complex construction conditions.In view of this,based on the analysis of structural characteristics and combined with the actual situation of the project,the cumulative sliding method construction technology is proposed to be adopted.At the same time,the design and checking calculation of sliding measures and simulation analysis of structural construction process are carried out.The analysis results show that the structural deformation is within the controllable range,which verifies the feasibility of the construction scheme.