Design of Long Span Exhibition Hall of Steel Structure

ABSTRACT The current demand from Society/Industry is large clear span structures. A variety of pre-engineered options are available today. For exhibition hall of permanent nature, an attempt has been made to choose a different geometry than that offered by pre-engineered suppliers. The arch shape long span steel structure has been analyzed and designed using the software applications. The trusses designed here are of circular hollow sections since they are of special interest from aesthetic viewpoint. For getting a view of open spaces only three numbers of columns are placed in the interior side of the structure. The span of 25m is kept open on front side of structure for the purpose of entrance and exit, and can be closed with the help of shutters. The roof sheeting over the truss is of galvalume sheet of 0.55mm thickness and in the central strip translucent sheet is provided for natural skylight. Initially the forces are calculated and are applied on the structure modeled in Staad-Pro, then the structure is analyzed and designed. Finally the results are discussed & compared the trusses of different spacing.