Vibration Influence Of Wall Mounted Jib Crane Beam With Initial Defect

Steel structure workshop has the advantages of shorter construction period, construction of simple operation, can effectively improve the economic effectiveness in the construction, improve the process of industry development in our country, in the case of that, most of the new factory building is steel structure. The wall crane of the steel structure workshop (also known as wall cantilever crane) is a kind of special form of lifting transport equipment, due to in Design code for the steel structures and Construction quality acceptance of steel structures project specification in the no phase corresponds to of clear provides, so in actual design and construction for deformation and installation deviation control is given priority to with experience, we has necessary on its for research.This paper is based on a compressor plant for production of heavy steel structure engineering of Chengdu. First of all i summed up the General design principles of crane girder wall crane beam and structural measures. Then on plant construction process for has simulation analysis, compared has considered construction process or not on crane beam of displacement of effects; Then in the factory the whole truss model after considering the construction process of the crane beam is introduced the influence of initial displacement, has carried on the wall in ls-dyna crane workshop integral finite element analysis, understand the wall crane under light load and overload operation of mechanical performance with the crane beam considering the initial displacement produced by the construction process, In steel structure construction process, construction errors inevitably exist, in order to consider the safety of the crane beams that due to installation error in the construction impact on the wall of the crane beams and judgment in the presence of installation error case wall or not, the wall crane refinement model is established, and finite element simulation analysis, the suggested values of installation error is given. Finally, field monitoring was done at the factory, will be measured displacement results are compared with the results of finite element calculation to verify correctness of the finite element analysis. The purpose of this paper is expected based on the above analysis of the mechanical properties of wall crane beam has certain knowledge and understanding, a similar wall crane beam in the design and installation of projects provide some reference.