Abstract

During the past two decades, countless and valuable studies have been conducted on passive seismic control of structures on two-dimensional shear frame model and a few on three-dimensional shear frames. To simulate the actual behavior of buildings with higher accuracy, it is necessary to use more realistic and more complex models in evaluating the seismic performance and controller design. In this study, two indicators related to the structural damage and efficiency control have been used for the seismic control of the structure considering the soil-structure interaction (SSI) effect. with a detailed and complex three-dimensional finite element model in the OpenSees software, a twenty-story concrete structure is designed by the performance based plastic design (PBPD) method; the optimization process of control system and structure performance under the circumstances taken into account at the design stage have been studied. Seismic performance subjected to three acceleration records of far-field earthquake has been investigated and to consider the effects of SSI, the simplified cone physical model has been used. Results indicate that according to the type of soil for which the structure is designed, Tuned Mass Damper (TMD) cannot be reliably used to reduce lateral displacement of the structure, but TMD shows a proper performance in reducing inter-story drift

Highlights

  • With a preliminary research on passive seismic control systems and structures with obvious benefits, this type of systems mainly including the cost of all this equipment and easy manufacturing process; engineers began to make extensive use of them to reduce the structural loads due to wind and earthquake loads [1,2,3,4]

  • The results showed that soil failure decreases Tuned Mass Damper (TMD) efficiency

  • In this study, constructing a three-dimensional finite element model of a high-rise with a concrete structure designed by performance based plastic design (PBPD), the effects of soil-structure interaction (SSI) under far-field earthquake and nonlinear behavior of structure have been studied

Read more

Summary

Introduction

With a preliminary research on passive seismic control systems and structures with obvious benefits, this type of systems mainly including the cost of all this equipment and easy manufacturing process; engineers began to make extensive use of them to reduce the structural loads due to wind and earthquake loads [1,2,3,4]. It has been tried to obtain TMD optimum parameters by considering less attended aspects that have been already expressed from high rise concrete structure designed by PBPD and equipped with TMD through providing an accurate three-dimensional finite element model. For this purpose, time history analysis has been conducted on the twenty-story concrete structure model, under three far-field earthquake records. In this study, using criteria related to structural response and damage and structural damage, it has been tried to realistically evaluate the performance of TMD in concrete structures

Performance based plastic design method
Summary of PBPD method steps
Design of twenty-story concrete structure using PBPD method
Cone model characteristics of soil
Features of the structural model
Applied base excitations
Survey of the results of analysis and optimization parameters of TMD
Findings
Conclusions
Full Text
Published version (Free)

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call