A Typical Non-Linear Dynamic Analysis of Asymmetric RCC Buildings with Base Isolation, Damper and Bracing During Earthquake

  • Ajay Chaubisa
  • B.M. Purohit
  • A.R. Darji
Keywords: Key words: Asymmetric RCC Buildings, Non-linear Dynamic Analysis, Base Isolation, Damper, Bracing, Earthquake data.

Abstract

The development in concrete technology covering materials, structural systems, and construction techniques made it possible to build concrete tall buildings. The needs and demands of taller structures in construction industry and real estate industry are increasing day by day all over the world. These structures are flexible in nature and constructed as light weight as possible (when seismic load acts on a RCC structure it play as a functions of self-weight), which have less values of damping, makes them vulnerable to undesirable vibrations. This vibration in the structures creates major problems to serviceability requirement or demand of the structure and also reduces structural integrity with possibilities of failures. Construction decades or a Current trend uses several new techniques adopted to reduce earthquake and wind induced structural vibration.

In recent year’s considerable large concentration has been paid to research and development of structural control systems and devices with particular importance on mitigations of seismic and wind responses of buildings. Many vibration-control control systems are categorised measures like active, semi-active, passive and hybrid Control methods have been developed. on-structural components are sensitive in nature due to large amount of ground motions which produces floor accelerations, velocities, and displacements. At the time of an earthquake, the buildings produce motion, resulting in peak floor accelerations higher than the peak ground acceleration. Thus earthquake ground motion can causes significant or severe structural damages. Therefore, the demands of structural response control system increase worldwide.

This article deal with review of RCC structures with some most worldwide used structural response control system or devices such as damper, base isolation and bracing, Article also comprises recent development in these control systems with their structural reduction efficiency. In this study, reinforced concrete structure is taken for seismic performance evaluation. This RC building is modeled with different structural control system such as base isolator, damper and bracing with use of commercial computer software. After that various ground motion data is applied to the building model to evaluate structural response. Nonlinear time history analysis is carried out for building model with each control system (base isolation, damper and bracing) and the result of seismic response of each of control system is compared with other control system.

References

A Kadid1, D.Yahiaoui1, “SEISMIC ASSESSMENT OF BRACED RC FRAMES”, Procedia Engineering 14 (2011)2899–2905.
A. Ghobarah a, H. AbouElfath, “REHABILITATION OF A REINFORCED CONCRETE FRAME USINGECCENTRIC STEEL BRACING”, Engineering Structures 23 (2001) 745–755.
A.K. Sinha, Sharad Singh, “STRUCTURAL RESPONSE CONTROL OF RCCMOMENT RESISTING FRAME USING FLUIDVISCOUS DAMPERS”, International Journal of Civil Engineering and Technology (IJCIET)Volume 8, Issue 1, January 2017.
Abdo lrahim Jalali, Peyman Narjabadifam, “OPTIMUM MODAL CHARACTERISTICS FOR MULTI-STORY BUILDINGS ISOLATED WITH LRBS”, 4th International Conference on Earthquake Engineering Taipei, Taiwan, October 12-13, 2006.
AmnartKhampanit , SutatLeelataviwat, JensakKochan in, PennungWarnitchai, “ENERGY-BASED SEISMICSTRENGTHENING DESIGN OF NON-DUCTILE REINFORCEDCONCRETE FRAMES USING BUCKLING- RESTRAINED BRACES”, Engineering Structures 81 (2014) 110–122.
C.P. Providakis, “EFFECT OF LRB ISOLATORS AND SUPPLEMENTAL VISCOUS DAMPERS ON SEISMICISOLATED BUILDINGS UNDER NEAR-FAULT EXCITATIONS”, Engineering Structures 30 (2008)1187–1198.
D. Lopez Garcia, T. T. Soong,” EFFICIENCY OF A SIMPLE APPROACH TO DAMPER ALLOCATION IN MDOF STRUCTURES” Journal of Structural Control,Vol.9 Pages 19-30, 2002 Apr.
Franco Braga, Michelangelo Laterza, “FIELD TESTING OF LOW-RISE BASE ISOLATED BUILDING”, Engineering Structures 26 (2004) 1599–1610.
Goel, R. K, “SEISMIC RESPONSE OF LINEAR AND NON-LINEAR ASYMMETRIC SYSTEMS WITH NONLINEARVISCOUS DAMPERS”, Earthquake Engineering Structural Dynamics. 34,2005,
Hwang, J. S., and Ku, S. W, “ANALYTICAL MODELING OF HIGH DAMPING RUBBER BEARINGS”,J. Struct. Engrg.ASCE, 123 (8), 1029–1036, (1997).
Kelly JM, “ROLE OF DAMPING IN SEISMIC ISOLATION”, Earthquake Engineering and Structural Dynamics1999;28(1):3–20.
Liya Mathew, C. Prabha, “EFFECT OF FLUID VISCOUS DAMPERS IN MULTI-STOREYED BUILDINGS”, IMPACT: International Journal of Research in Engineering & Technology, Vol. 2, Issue 9, Sep 2014.
Nitendra G Mahajan, D B Raijiwala, “SEISMIC RESPONSE CONTROL OF A BUILDINGINSTALLED WITH PASSIVE DAMPERS”, International Journal of Advanced Engineering Technology, Vol.2, Issue3, July-September, 2011,
Pooja Desai, VikhyatKatti, “BRACINGS AS LATERAL LOAD RESISTING STRUCTURAL SYSTEM”, International Research Journal of Engineering and Technology, Volume.4 Issue.5, May -2017.
Ramadan T, Ghobarah A, “ANALYTICAL MODEL FOR SHEAR–LINK BEHAVIOR” J StructEngng, ASCE1995;121(11):1574–80.
S.M. Kalantari, H. Naderpour, S.R. HoseiniVaez, “INVESTIGATION OF BASE ISOLATOR TYPE SELECTION ON SEISMICBEHAVIOR OF STRUCTURES INCLUDING STORY DRIFTS ANDPLASTIC HINGE FORMATION”, the 14th World Conference on Earthquake Engineering October 12-17, 2008, Beijing, China,
Stefano Silvestri, GiadaGasparini, TomasoTrombetti,(2012) “A FIVE-STEP PROCEDURE FOR THE DIMENSIONING OFVISCOUS DAMPERS TO BE INSERTED IN BUILDING STRUCTURES”, Journal of Earthquake Engineering, 14: 417–447.
Yongqi Chen, Tiezhu Cao, Liangzhe Ma, ChaoYinglu, “SEISMIC PROTECTION SYSTEM AND ITS ECONOMIC ANALYSIS ONTHE BEIJING HIGH-RISE BUILDING PANGU PLAZA”, The 14th World Conference on Earthquake Engineering October 12-17, 2008, Beijing, China.
Published
2018-10-05