Between Pillars Supporting Effect On The Performance Of Large Tonnage Portal Rigid Frame

With the rapid development of our country’s economy, the need to build a largenumber of buildings for modern equipment, industrial workshop. Compared withordinary steel structure, the light portal frame structure weith the advantages of materialis province, light weight, low cost, conveniently and other advantages, has been moreand more widely used in industrial workshop. Gantry frame in-plane stability is mainlydetermined by the rigid frame design itself, guarantee the stability of the plane is easy todo; The longitudinal stability the out-of-plane stability is, however, by the gantry framesupporting system to ensure that, especially for a plant with large tonnage crane, such aswith the weight of50t bridge crane workshop, weight increase, earthquake effect,effects on the longitudinal properties of the steel is more apparent. So the right choicebetween portal rigid frame column support structure, layout and internal forcecalculation is very important.First of all, using PKPM respectively in the frame of door type3d design (i.e.,plane structure model) to build the three-dimensional model, using PKPM the toolboxin the support calculation and construction drawing module under simplified model(that is) model, the two models under the same support in the form of mechanicalperformance were analyzed, find out the problems that exist in the current design, andputs forward corresponding Suggestions.Second, the column support arrangement between different, steel performance alsohave an effect. But not only consider the column support, should also be combined withroof level support, locate support arrangement scheme. In this paper, four differentlocation layout scheme, through the comparative analysis to select the optimal solution.Finally, gantry frame column support system between various, different forms ofsupport the influence of the vertical steel performance also each are not identical. In thispaper, through the establishment of various forms of support scheme were analyzed,select the optimal form of support.