Structural Design and Analysis of Long-span Steel Truss Corrido
In this paper,the steel truss corridor of a student dormitory renovation project in a certain area is taken as the re-search background,and its displacement,strength,floor stress and floor comfort are analyzed by Midas gen structural calcula-tion software.The research results show that the steel truss structure has the advantages of light weight,high stiffness and good overall performance in view of the characteristics of large span,high crowd density and heavy load.The concrete floor of the corridor is deformed in harmony with the deformation of the main truss structure,which produces a large horizontal tensile stress on the chord and the deflection meets the requirements.Under the earthquake,the normal section bearing capacity and shear bearing capacity of the main components of steel truss meet the strength requirements;The first natural frequency of the steel structure corridor is greater than 3Hz,and the peak acceleration of the dynamic time-history response of continuous walk-ing is 0.1219m/s2,so the comfort meets the requirements.During the construction process,the truss should be allowed to par-tially deform freely,so that the assumptions of the calculation model are consistent with the actual application.
万方数据
维普
