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Performance Evaluation of Moment-Resisting Steel Frame Buildings Under Seismic and Blast-Induced Vibrations

  • Muhammed Zain KangdaEmail author
  • Sachin Bakre
Original Paper
  • 15 Downloads

Abstract

Purpose

The paper is an attempt to evaluate the efficiency of passive control techniques such as base isolation system (e.g. Lead/Rubber Bearing) and fluid viscous dampers subjected to earthquake ground motions and underground blast-induced vibrations. Two moment-resisting steel frame buildings are analyzed to evaluate the structural responses under dynamic excitations. The effect of vertical irregularity on the performance of passive control techniques in mitigating the responses of the building is also studied.

Methods

Non-linear dynamic analysis has been conducted on regular and irregular steel structures. The study investigates the effect of isolation period on the structural responses. The isolators are designed based on the design procedures developed by various researchers. The technical specifications of fluid viscous dampers have been selected from M/s Taylor Devices, USA.

Results

The structural responses and energy dissipated by these control techniques is evaluated and a comparative study is also carried out amongst control techniques under blast and seismic excitations.

Conclusions

Both the selected passive control techniques have proved to be very effective in reducing the structural responses and forces induced in the building owing to ground-induced vibration.

Keywords

Blast-induced vibration Base isolation Energy dissipation Earthquake Fluid viscous damper Passive techniques 

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Authors and Affiliations

  1. 1.Applied Mechanics DepartmentVisvesvaraya National Institute of TechnologyNagpurIndia
  2. 2.Department of Applied MechanicsVisvesvaraya National Institute of TechnologyNagpurIndia

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