The same can be minimized by making the structure more rigid, but it appears to be not feasible and also uneconomical. Obviously, bare frames are to be more flexible and have great section requirement to withstand the forces induced. With an increase in the amount of stress, strain, deformation and displacement in the structure there is ultimately increases in the cost of construction due to the increased sectional elements. However, such provisions only increase the weight and live load of the structure along with earthquake forces. To solve this problem the use of multistorey building is needed. Availability of land has decreased and the price of the land has increased. Therefore metro cities are very densely populated. INTRODUCTION People from rural areas are migrating to cities due to the Industrial Revolution, the availability of jobs and facilities.
#HOW TO MODEL AND DESIGN HIGH RISE BUILDINGS USING ETABS.PDF SOFTWARE#
Response spectrum analyses conducted in ETABS software are considered in this study to analyze the behavior of the steel frame building with double diagonal bracings and chevron bracings with combination of outriggers at different storey levels in the G+40 storey building. Accordingly, in this study G+40 storey steel building is varied with double diagonal bracing and chevron bracing along with varying positioning of outrigger location, in a high risk seismic zone IV and soil type II. In this study, in order to control the lateral drift, it is proposed to add a set of outrigger trusses at various storey level and to locate the optimum location. However structures taller than 8-storey are prone to lateral drift amplification due to the higher mode effects. By employing the braced frame system, the damage is more uniformly distributed over the height. Braced frame structures provide high stiffness and moderate ductility.
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