OPTIMAL DESIGN ANALYSIS OF PORTAL FRAME OF ORDINARY STEEL STRUCTURE WORKSHOP WITH LIGHTWEIGHT ENCLOSURE

With the application of lightweight enclosure materials in the steel structure workshops, the solid??web type portal frame is used in metallurgical workshop, instead of the traditional latticed structure, but the current design method only bases on the code for design of steel structure and the experience. In order to control the steel consumption and ensure the safety, an optimal design method for the portal frame of ordinary steel structure workshop is proposed, according to the contrastive analysis on current related codes and the engineering experience. One project case shows the advantages of this method, and this method provides a basis for the project design of the same type.