International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395 -0056
Volume: 04 Issue: 03 | Mar -2017
p-ISSN: 2395-0072
www.irjet.net
Analysis of a RCC frame Tall Structure using Staad Pro on Different Seismic Zones Considering Ground Slopes Rajkumar Vishwakarma1, Anubhav Rai2 1M-Tech 2Asst.
Student, Department of Civil Engineering, Gyan Ganga Institute of Tech. & Science, Jabalpur M.P. India Professor, Department of Civil Engineering, Gyan Ganga Institute of Tech. & Science, Jabalpur M.P. India
---------------------------------------------------------------------***--------------------------------------------------------------------Abstract – The hilly areas in north east India contained seismic activity. Due to hilly areas building are required to be constructed on sloping ground due to lack of plain ground. The buildings are irregularly situated on hilly slopes in earthquake areas therefore many damages occurred when earthquake are affected, this may be causes lot human disaster and also affect the economic growth of these areas... In this paper we analyzed using Staad Pro comparison between sloping ground, with different slope and plain ground building using Response Spectrum Method as per IS 1893-2000 The dynamic response, Maximum displacement in columns are analyzed with different configurations of sloping ground. Keywords— Seismic, Multistoried building, Sloping ground
I Introduction India has track record of catastrophic earthquakes, at various regions, which left behind loss of many lives and heavy destruction to property and economy. Investigation of buildings in hilly region is somewhat different than the buildings on leveled ground, since the column of the hill building rest at different levels on the slope. Such building have mass and stiffness varying along the vertical and horizontal planes resulting the center of mass and center of rigidity do not coincide on various floors, hence they demand torsional analysis, in addition to lateral forces under the action of earthquakes. The unsymmetrical building require great attention in the analysis and design under the action of seismic excitation. Past earthquake in which, buildings located near the edge of a stretch of hills or on sloping ground suffered serious damages. The shorter column attracts more forces and undergoes damage, when subjected to earthquakes. The other problems associated with hill buildings, additional lateral earth pressure at various levels, slope instability, different soil profile yielding unequal settlement of foundation.
Fig. 1.1 plan STRUCTURAL MODELLING A RCC medium rise building of 10 stories with floor height 3 m subjected to earthquake lading in V has been considered. In this regard STAAD Pro V8i software has been considered as tool to perform. Effect of sloping effect of the ground on behaviour of structural frames is analysed. The plan for the above building shown in figure has been considered to carry out the study the dimension of the building are 12m x 12m. Generally in such cases the building is to be analysed for the earthquake force because maximum lateral force induced in building is due to earthquake load. The structural effect of the building on various sloping ground is to be studied. This STUDY deals with comparative analysis of seismic behavior on tall structures G+10 building frame with three different soil types and different slope of ground as 00, 70 and 140. Under the Earthquake effect as per IS 1893(part I) 2002 static analysis. A comparison of analysis results in terms of Maximum displacements, Maximum bending moment, Maximum shear force has been carried out.
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