International Journal of Scientific and Research Publications, Volume 4, Issue 4, April 2014 1 ISSN 2250-3153 www.ijsrp.org Non-linear time history analysis of tall structure for seismic load using damper Waseem Khan * , Dr. Saleem Akhtar ** , Aslam Hussain *** * Assistant Professor, Department of Civil Engineering, University Institute of Technology, Rajiv Gandhi Proudyogiki Vishwavidyalaya, Bhopal . M.P. India ** Professor & Head, Department of Civil Engineering, University Institute of Technology, Rajiv Gandhi Proudyogiki Vishwavidyalaya, Bhopal . M.P. India *** Assistant Professor, Department of Civil Engineering, University Institute of Technology, Rajiv Gandhi Proudyogiki Vishwavidyalaya, Bhopal . M.P. India Abstract- This research paper describes the results of an extensive study on the seismic behavior of a structure with damper and without damper under different earthquake acceleration frequency like EQ Altadena , EQ Lucerne, EQ Pomona, EQ Smonica and EQ Yormo. The proposed procedure is placed the dampers on the floors of the ninth-floor and five-floor of a ninth story building frame then compare the different performance of structure with damper up to Ninth-floors, damper up to Fifth-floors and without damper of ninth-story building frame using SAP2000 V15. As per IS- 1893 2002 non-linear time-history analyses of frame structure indicate that maximum displacement, maximum base shear and maximum acceleration effectively reduce by providing the damper in building frame from base support to fifth- floor and base support to ninth-floor comparison to as usual frame. Index Terms- Earthquake, Damper, Structures, Energy absorber. I. INTRODUCTION arthquakes are natural hazards under which disasters are mainly caused by damage or collapse of buildings and other man-made structures. Experience has shown that for new constructions, establishing earthquake resistant regulations and their implementation is the critical safeguard against earthquake- induced damage. As regards existing structures, it is necessary to evaluate and strengthen them based on evaluation criteria before an earthquake. Earthquake damage depends on many parameters, including intensity, duration and frequency, content of ground motion, geologic and soil condition, quality of construction. Damper is used in machines, car suspension system and clothes washing machine. Damping system in a building use friction to absorbs some of the force from vibrations. A damping system is much larger and is also designed to absorb the violent shocks of an earthquake. During august-2007 Peru earthquake, many multistory buildings in urban areas was collapsed and suffered wide spread damages. Post-earthquake observations revealed many deficiencies in these structures including non-adoption of seismic engineering practices and lack of seismic resistant features. The seismic performance of a building can be improved by energy absorbing device, which may be active and passive in nature. Dampers are the energy dissipating devices will be coming up in large number in future times. Figure 1.1 schematic diagram of a damper In this regards nonlinear time history analysis are of paramount importance for seismic analysis. This motivation has led to this study on effect of dampers during earthquake for building frame, bridges, nuclear power houses etc. Various configurations of this damper profile layout have been considered along with various loading of earthquake acceleration as per IS 1893 (Part1):2002. The objective in this research paper is to perform the non- linear time history analysis of nine-story building frame with and without damper considering different earthquake acceleration load. Damper is one of the important device by which the seismic performance of a building can be improved, shown in figure 1.1. When dampers are applied to the structure the seismic forces as absolute acceleration, absolute displacement, absolute velocity and base shear are reduced. Following are of the major objective of this study. 1.1 Modeling of building frame without damper. 1.2 Modeling of building frame with damper. 1.3 Nonlinear time history analysis of building frames without damper. 1.4 Nonlinear time history analysis of building frames with damper. 1.5 Critical study of results in terms of absolute acceleration, absolute displacement, and base shear. E