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TIME HISTORY ANALYSIS OF A REINFORCED CONCRETE (RC) BUILDING IN HILLY TERRAIN SUBJECTED TO EARTHQUAKE
 
Mountainous terrain provides numerable challenges to a civil engineer for any construction activity. These include construction in areas of high earthquake intensity, extreme climates and terrorist activities (e.g., blast loading). The topography of hills necessitates construction of structures with asymmetric designs and mass distribution. Such structures when subjected to various forces and loads behave in a manner which is different from the structures that are constructed on plain areas. There exist many weak spots in such buildings which is needed to be identified and thereafter appropriately designed. However, such remote hilly areas where well designed structures are to cater for these effects are required, are yet to witness designs based on sound structural engineering. Considering the need for a suitable analysis and design of mid-rise reinforced concrete (RC) buildings in hilly regions, the present deals with the evaluation of the response of a G+3 building on a hilly area subjected to earthquake and wind. Four different types of slopes with inclinations 150, 300, 450 and 600 were considered for the present study to assess the performance of building subjected to lateral loads. Time history analysis has been employed for the analysis using SAP2000 software. The results indicated that the building with a slope of 150 is preferred compared to others to withstand the lateral loads. It was also observed that the short column towards hill sloped had experienced the maximum stress. Absolute Joint displacements and accelerations increased with the increase in slope of ground when subjected to lateral loads.

Anahtar Kelimeler: Time history analysis, earthquake, reinforced concrete (RC), seismic response, structural modeling



 


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