Structural Engineering Journal | A General Analysis of Equipment Cost and Management in Flyover Project

The IUP Journal of Structural Engineering

Characterization and Implementation of ADAS Type Hysteretic Damping Device in Steel Structure

Article Details

Pub. Date	: Apr, 2023
Product Name	: The IUP Journal of Structural Engineering
Product Type	: Article
Product Code	: IJSE020423
Author Name	: U K Koshti, A B Patel and S P Purohit
Availability	: YES
Subject/Domain	: Science and Technology
Download Format	: PDF Format
No. of Pages	: 17

Price

Download

Abstract

The paper explains the impact of metallic dampers on the seismic performance of a nine-story steel moment frame. The design technique for an X-shaped Added Damping and Added Stiffness (ADAS) type steel damper is examined. With a minimal activation load, the damper is designed to give well before the building yields. A series of Finite Element (FE) simulations were used to verify the performance of the proposed device under constant and increasing cycle loads. The suggested steel dampers exhibited comparable hysteretic curves and steady hysteretic behavior, according to the simulation findings. ABAQUS software was used for FE analysis. Then, utilizing El centro (1940) ground motion recordings in SAP2000 software, nonlinear time history studies were done to evaluate the seismic behavior of steel frames using this sort of passive control system. Through the dampers, the seismic reactions of the frames were investigated and compared in terms of maximum displacement, maximum story drift, roof displacement time history, input energy and dissipated energy. The results showed that the constructions with dampers outperformed the original structure in terms of seismic performance.

Introduction

Engineers realized in the late 19th to early 20th centuries that steel buildings and structures functioned better during earthquakes than other types of construction. During the Richter magnitude 6.8 North ridge (Los Angeles) earthquake of January 17, 1994, and the Richter magnitude 7.2 Kobe (Japan) earthquakes, several steel structures fell. Both earthquakes struck highly developed metropolitan centers in countries recognized for their seismic engineering expertise. Material ductility alone does not ensure ductile structural behavior, engineers discovered.

Many types of structures rely heavily on their post-elastic behavior to survive amid significant ground motion. The capacity of the frame system to dissipate energy