Wind Analysis of 20 Storey RC Structure with and without Shear Wall
Mr. Vivek Ananda Bandgar, Prof. M. V. Nagendra
High-rise RC structure, wind analysis.
In common, for the design of high-rise buildings, both wind as well as seismic loads needs to be measured. prevailing criteria for carrying out analysis for seismic loads and wind loads are different. As per IS 875(Part 3):1987, when wind interacts with a structure, both positive and negative pressure occur concurrently, the structure must have adequate strength to defy the applied loads. Load exerted on the structure is transferred to the structural system then passing through the foundation and finally transferred to the earth. The wind pressure is essentially a function of exposed basic wind speed, topography, building height, exposed area and shape of the building. Here we have concentrated on wind loads. It radically changes the behavior of high rise structure as the height and wind speed increases. Usually shear wall is used in the high rise building. To carry out the modeling and analysis for 20 storey building with and without shear wall E-TABS software is used. Comparison of the 20 storey structure with and without shear wall is then undertaken.