Comparison of Seismic Zone-II & Zone-V With Respect to Wind Effects on High Rise Structure Using ETABS

Abstract

Abstract: Reinforced concrete (RC) framed buildings with ground parking are commonly seen in major cities. These RC framed structures are constructed in densely populated cities of developing countries all around India. Earthquakes in the past have major effects on the life and economy as to the buildings and infrastructure was poorly built. Earthquake and wind are both juggernaut as they cannot be stopped in any way, though the solutions are provided only to safeguard the buildings. It is therefore necessary to analyse and modify the building elements satisfactorily to withstand earthquake and wind effects. The Indian code for wind load resisting structure is prepared for analysis of the building and to design the structure for resisting wind loading effects. The wind loading is predominant in effect for three seconds. When the wind loading is taken account the internal pressure of wind and external pressure of the wind loading is taken into account. Wind acts on the surface that is been exposed to it. Mostly windward wind is considered to act on the building. The parameter from analysis of the wind loading on the structure is compared to seismic loading in different zones. Practically seismic effect on building is unpredictable though there is specification suggested in IS code for designing of earthquake resistant structure. The structure is accordingly designed and analysed with proper method with respect to the building height and plan aspect. The response of the building to lateral forces of seismic loading is considered to be in horizontal direction whereas the force acting in the vertical direction is negligible. The response of the building is considered to the same movement that of the shaking to earth motion. The response of building in wind loading effect is compared with response of the elements in seismic loading effects. Up to a certain height wind effect is considered to be same. Seismic loading affects from the foundation itself and the lateral force shake the building in the direction of earthquake motion. The design criteria can be changed when building can be efficiently analysed for both wind and seismic effect. With the help of comparison of the building structure in seismic and wind loading effect, the building can be designed safely if in the analysis the structure is shown failure. Precautions can be adopted in designing of the building material or the building elements. The consulting structural engineer needs to design, and build to safeguard the building from the seismic and wind effect Keywords: Earthquake, Bending moment, Seismic zones, Wind, Direction, Effects.