OPTIMIZATION OF LATERAL FORCE RESISTING SYSTEM IN TALL BUILDINGS UNDER SESMIC LOADS IN DIFFERENT SEISMIC ZONES
Journal Title: International Journal of Engineering Sciences & Research Technology - Year 0, Vol 4, Issue 10
Abstract
The evolution of tall building structural systems based on new structural concepts with newly adopted high strength materials and construction methods have been towards “stiffness” and “lightness”. Structural systems are become “lighter” and “stiffer”. It is common knowledge that rather than directly standing the forces, it is better to reduce them and dissipate the magnitude of vibrations. Structure design of high rise buildings is governed by lateral loads due to wind or earthquake. Lateral load resistance of structure is provided by interior structural system or exterior structural system. The selected structural system should be such that it should be effectively utilized for structural requirements. Efficient lateral systems, decreases the lateral deformations caused by the seismic forces in the buildings. The distribution of the mass symmetrically reduces the torsional effect in the building. In this work, it is proposed to carry out an analytical study, on multi-storeys buildings of 10, 20 and 30 stories, was carried out accounting for different seismic zones. The suitability and efficiency of different lateral systems that are commonly used as conventional frame, concrete infill, diagrid and shear wall were investigated. These buildinq1g models are analysed, using ETABS 2015 software, to the action of lateral forces employing linear static and linear dynamic approaches as per IS 1893 (Part I): 2002. The results of the analyses, in terms of lateral deformations, base shear, modal time period respective storey drifts.
Authors and Affiliations
Prof. Syed Farrukh Anwar*
Keywords
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