Large Span Portal Frame Structure Design And Analysis

Portal frame in today’s much favored, for its light weight, quick manufacture,installation and construction period, so can reduce the cost of. Large span portal framestructure can also provide large space, can meet the demand of large space building, sothat the large span portal frame has a larger space for development.Design of portal frames, to comply with the relevant norms, the existing norms ofthe lack of specialized long-span steel arch structure design method, through the use ofPKPM structure design software, the establishment of a60m large span lightweightsteel portal frame, carries on the analysis, this paper analysis the content as follows:(1)The collection of relevant literature portal frame through research, development,research of portal frame properties, and its market prospect.(2)Reference portal frame design-related literature, summarized portal framedesign and analysis methods, design beams cross section when using brute-forcemethod to find the optimal cross section. Analysis Methods icon law, specificallysummed up the situation by force structures, analysis of the structure and thespecification whether discrepancies.(3)Construction of60m large span portal frame model, combined with the datacalculated internal force analysis, research their condition in the case of differentprojects, see its feasibility. The purpose of the analysis has been calculated, the structuremeets the requirements, the amount of steel per Pin for10.725t, to reach the provincialsteel.(4)Nodes portal frame design, design forms with pictures on display, rationalanalysis obtained by computing node, the node is designed to meet the requirementsthrough analysis, practical.By60m large span portal frame design analysis, it meets specifications and designrequirements, practical and can achieve good economic results, there is much room fordevelopment.