Seismic mitigation of adjoining buildings using base isolators and inter-building dampers

Z. D. Yang; Eddie S.S. Lam

Seismic mitigation of adjoining buildings using base isolators and inter-building dampers

Z. D. Yang, Eddie S.S. Lam

The Hong Kong Polytechnic University

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic research › peer-review

Abstract

It is not uncommon for existing buildings to be very close, if not adjoining, to each other. Without any separation, pounding between adjacent buildings may pose serious seismic hazard. In the case of redevelopment of just one building within the building group, it is desirable to incorporate means of seismic mitigation to the existing buildings. In the past years, seismic isolators have been successfully used to decouple the superstructure from ground motion. It has also been suggested to separate adjacent buildings using dampers to reduce the adverse effect of pounding. In this study, inter-building dampers are used to connect the buildings to reduce the effect of pounding and base isolators are installed in the new building to reduce the effect due to ground motion. Equations of motion are formulated to represent the response of a building group to strong earthquake motion. Parametric studies are performed to assess the impact of varying both stiffness and damping of the inter-building dampers to the building group. As compared with the case of without inter-building dampers, structural response of the existing building is reduced.

Original language	English
Title of host publication	Proceedings - 3rd International Postgraduate Conference on Infrastructure and Environment, IPC 2011
Editors	Samson Zhoujun Liu, Arshad Ali Javed, Faye Danfei Ni, Allan Weilin Shen
Publisher	Faculty of Construction and Land Use, The Hong Kong Polytechnic University
Pages	251-258
Number of pages	8
ISBN (Electronic)	9789881731166
Publication status	Published - 1 Jan 2011
Event	3rd International Postgraduate Conference on Infrastructure and Environment, IPC 2011 - Hong Kong, Hong Kong Duration: 11 Jul 2011 → 12 Jul 2011

Publication series

Name	Proceedings - 3rd International Postgraduate Conference on Infrastructure and Environment, IPC 2011
Volume	1

Conference

Conference	3rd International Postgraduate Conference on Infrastructure and Environment, IPC 2011
Country/Territory	Hong Kong
City	Hong Kong
Period	11/07/11 → 12/07/11

Keywords

Base isolator
Critical damping
Dynamic response
Seismic mitigation

ASJC Scopus subject areas

Building and Construction
General Environmental Science

Cite this

Yang, Z. D., & Lam, E. S. S. (2011). Seismic mitigation of adjoining buildings using base isolators and inter-building dampers. In S. Z. Liu, A. A. Javed, F. D. Ni, & A. W. Shen (Eds.), Proceedings - 3rd International Postgraduate Conference on Infrastructure and Environment, IPC 2011 (pp. 251-258). (Proceedings - 3rd International Postgraduate Conference on Infrastructure and Environment, IPC 2011; Vol. 1). Faculty of Construction and Land Use, The Hong Kong Polytechnic University.

Yang, Z. D. ; Lam, Eddie S.S. / Seismic mitigation of adjoining buildings using base isolators and inter-building dampers. Proceedings - 3rd International Postgraduate Conference on Infrastructure and Environment, IPC 2011. editor / Samson Zhoujun Liu ; Arshad Ali Javed ; Faye Danfei Ni ; Allan Weilin Shen. Faculty of Construction and Land Use, The Hong Kong Polytechnic University, 2011. pp. 251-258 (Proceedings - 3rd International Postgraduate Conference on Infrastructure and Environment, IPC 2011).

@inproceedings{2c93009ff19d45f5842f4914f23f4984,

title = "Seismic mitigation of adjoining buildings using base isolators and inter-building dampers",

abstract = "It is not uncommon for existing buildings to be very close, if not adjoining, to each other. Without any separation, pounding between adjacent buildings may pose serious seismic hazard. In the case of redevelopment of just one building within the building group, it is desirable to incorporate means of seismic mitigation to the existing buildings. In the past years, seismic isolators have been successfully used to decouple the superstructure from ground motion. It has also been suggested to separate adjacent buildings using dampers to reduce the adverse effect of pounding. In this study, inter-building dampers are used to connect the buildings to reduce the effect of pounding and base isolators are installed in the new building to reduce the effect due to ground motion. Equations of motion are formulated to represent the response of a building group to strong earthquake motion. Parametric studies are performed to assess the impact of varying both stiffness and damping of the inter-building dampers to the building group. As compared with the case of without inter-building dampers, structural response of the existing building is reduced.",

keywords = "Base isolator, Critical damping, Dynamic response, Seismic mitigation",

author = "Yang, {Z. D.} and Lam, {Eddie S.S.}",

year = "2011",

month = jan,

day = "1",

language = "English",

series = "Proceedings - 3rd International Postgraduate Conference on Infrastructure and Environment, IPC 2011",

publisher = "Faculty of Construction and Land Use, The Hong Kong Polytechnic University",

pages = "251--258",

editor = "Liu, {Samson Zhoujun} and Javed, {Arshad Ali} and Ni, {Faye Danfei} and Shen, {Allan Weilin}",

booktitle = "Proceedings - 3rd International Postgraduate Conference on Infrastructure and Environment, IPC 2011",

note = "3rd International Postgraduate Conference on Infrastructure and Environment, IPC 2011 ; Conference date: 11-07-2011 Through 12-07-2011",

}

Yang, ZD & Lam, ESS 2011, Seismic mitigation of adjoining buildings using base isolators and inter-building dampers. in SZ Liu, AA Javed, FD Ni & AW Shen (eds), Proceedings - 3rd International Postgraduate Conference on Infrastructure and Environment, IPC 2011. Proceedings - 3rd International Postgraduate Conference on Infrastructure and Environment, IPC 2011, vol. 1, Faculty of Construction and Land Use, The Hong Kong Polytechnic University, pp. 251-258, 3rd International Postgraduate Conference on Infrastructure and Environment, IPC 2011, Hong Kong, Hong Kong, 11/07/11.

Seismic mitigation of adjoining buildings using base isolators and inter-building dampers. / Yang, Z. D.; Lam, Eddie S.S.
Proceedings - 3rd International Postgraduate Conference on Infrastructure and Environment, IPC 2011. ed. / Samson Zhoujun Liu; Arshad Ali Javed; Faye Danfei Ni; Allan Weilin Shen. Faculty of Construction and Land Use, The Hong Kong Polytechnic University, 2011. p. 251-258 (Proceedings - 3rd International Postgraduate Conference on Infrastructure and Environment, IPC 2011; Vol. 1).

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic research › peer-review

TY - GEN

T1 - Seismic mitigation of adjoining buildings using base isolators and inter-building dampers

AU - Yang, Z. D.

AU - Lam, Eddie S.S.

PY - 2011/1/1

Y1 - 2011/1/1

N2 - It is not uncommon for existing buildings to be very close, if not adjoining, to each other. Without any separation, pounding between adjacent buildings may pose serious seismic hazard. In the case of redevelopment of just one building within the building group, it is desirable to incorporate means of seismic mitigation to the existing buildings. In the past years, seismic isolators have been successfully used to decouple the superstructure from ground motion. It has also been suggested to separate adjacent buildings using dampers to reduce the adverse effect of pounding. In this study, inter-building dampers are used to connect the buildings to reduce the effect of pounding and base isolators are installed in the new building to reduce the effect due to ground motion. Equations of motion are formulated to represent the response of a building group to strong earthquake motion. Parametric studies are performed to assess the impact of varying both stiffness and damping of the inter-building dampers to the building group. As compared with the case of without inter-building dampers, structural response of the existing building is reduced.

AB - It is not uncommon for existing buildings to be very close, if not adjoining, to each other. Without any separation, pounding between adjacent buildings may pose serious seismic hazard. In the case of redevelopment of just one building within the building group, it is desirable to incorporate means of seismic mitigation to the existing buildings. In the past years, seismic isolators have been successfully used to decouple the superstructure from ground motion. It has also been suggested to separate adjacent buildings using dampers to reduce the adverse effect of pounding. In this study, inter-building dampers are used to connect the buildings to reduce the effect of pounding and base isolators are installed in the new building to reduce the effect due to ground motion. Equations of motion are formulated to represent the response of a building group to strong earthquake motion. Parametric studies are performed to assess the impact of varying both stiffness and damping of the inter-building dampers to the building group. As compared with the case of without inter-building dampers, structural response of the existing building is reduced.

KW - Base isolator

KW - Critical damping

KW - Dynamic response

KW - Seismic mitigation

UR - http://www.scopus.com/inward/record.url?scp=85068513797&partnerID=8YFLogxK

M3 - Conference article published in proceeding or book

AN - SCOPUS:85068513797

T3 - Proceedings - 3rd International Postgraduate Conference on Infrastructure and Environment, IPC 2011

SP - 251

EP - 258

BT - Proceedings - 3rd International Postgraduate Conference on Infrastructure and Environment, IPC 2011

A2 - Liu, Samson Zhoujun

A2 - Javed, Arshad Ali

A2 - Ni, Faye Danfei

A2 - Shen, Allan Weilin

PB - Faculty of Construction and Land Use, The Hong Kong Polytechnic University

T2 - 3rd International Postgraduate Conference on Infrastructure and Environment, IPC 2011

Y2 - 11 July 2011 through 12 July 2011

ER -

Yang ZD, Lam ESS. Seismic mitigation of adjoining buildings using base isolators and inter-building dampers. In Liu SZ, Javed AA, Ni FD, Shen AW, editors, Proceedings - 3rd International Postgraduate Conference on Infrastructure and Environment, IPC 2011. Faculty of Construction and Land Use, The Hong Kong Polytechnic University. 2011. p. 251-258. (Proceedings - 3rd International Postgraduate Conference on Infrastructure and Environment, IPC 2011).

Seismic mitigation of adjoining buildings using base isolators and inter-building dampers

Abstract

Publication series

Conference

Keywords

ASJC Scopus subject areas

Other files and links

Fingerprint

Cite this