COMPARISON OF STEEL FRAMED AND STEEL DIAGRID STRUCTURAL SYSTEMS FOR TALL BUILDINGS
Sathiya Narayanan P
Post graduate student, Department of Civil Engineering, Pondicherry Engineering College, India , IN
Dr.S. Palanivel
Post graduate student, Department of Civil Engineering, Pondicherry Engineering College, India , IN
Keywords: Diagrid Structural System, Conventional system, Tall buildings, Steel Structure, CFT Column
Abstract
Tall buildings are increasing all over the world because of ingenuity of structural engineers, advances in construction equipments and methods, materials and structural systems. Structural design of tall buildings is governed by lateral load mainly the wind load, so structural system selected should be capable of resisting lateral load. The lateral load resisting structural system should provide stiffness, ductility and resistance to the structure. Lateral load resistance of structure is provided by interior and exterior structural systems like shear wall core system, braced tube system, outrigger system and tubular system. Nowadays people want to build unique structure and conventional method of designing have failed to give the desired result. Diagrid structural system is new trending concept in field of Structural Engineering taking into account, the factors of structural stability, aesthetic appearance and economic consideration. Compared to closely space vertical columns in framed structure, diagrid structural systems have special inclined columns on the periphery of the building. Diagrid structural system for tall buildings produces axial force along the periphery diagrid column direction under horizontal load and vertical load, which has the advantage of resisting horizontal wind load and seismic load. This paper presents a comparison of steel diagrid structural system with conventional steel moment frame structural system using ETABS software.
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