|Table of Contents|

Simplified Design and Analysis of Structure with Additional Improved Toggle-brace-damper Systems(PDF)

《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

Issue:
2009年01期
Page:
24-29
Research Field:
Publishing date:
2009-03-20

Info

Title:
Simplified Design and Analysis of Structure with Additional Improved Toggle-brace-damper Systems
Author(s):
LI Bo1;  LIANG Xing-wen2;  XIONG Er-gang1
1. School of Civil Engineering, Chang'an University,Xi'an 710061, Shaanxi, China; 2. School of Civil Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, Shaanxi, China
Keywords:
additional improved toggle-brace-damper;  energy dissipation system;  equivalent damping ratio;  response spectrum analysis;  nonlinear dynamic analysis
PACS:
TU352.1
DOI:
-
Abstract:
An enhanced toggle-brace-damper installation configuration with the damper directly connected to the beam-column joint was introduced, and the magnification factors for damper displacement and force were investigated. Expression for prediction of equivalent linear viscous damping ratio provided by the enhanced toggle-damper-brace systems installed in a building was introduced. For practical application, a simplified design and analysis method of structure with additional improved toggle-brace-damper systems was proposed based on Chinese code for seismic design of response spectrum, in which the damping coefficients of the dampers proportional to the relative modal displacements in the corresponding stories were distributed over the height of a structure to satisfy the given performance objective. The validity of this method was verified by nonlinear dynamic analyses. The results show that compared with the conventional installation configurations of toggle-brace-damper and diagonal brace-damper, this improved damper installation configuration not only decreases significantly floor displacement response but also reduces story shear demands.

References:

[1] CONSTANTINOU M C,SOONG T T,DARGUSH G F.Passive Energy Dissipation Systems for Structural Design and Retrofit[M].New York:Multidis-ciplinary Center for Earthquake Engineering Research,1998.
[2]SOONG T T,SPENCER B F.Supplemental Energy Dissipation:State-of-the-art and State-of-the Practice[J].Engineering Structures,2002,24(3):243-259.
[3]欧进萍,吴 斌,龙 旭.结构被动耗能减振效果的参数影响[J].地震工程与工程振动,1998,18(1):60-70. OU Jin-ping,WU Bin,LONG Xu.Parameter Analysis of Passive Energy Dissipation Systems[J].Earthquake Engineering and Engineering Vibration,1998,18(1):60-70.
[4]SYMANS M D,CONSTANTINOU M C.Passive Fluid Viscous Damping Systems for Seismic Energy Dissipation[J].Journal of Earthquake Technology,1998,35(4):185-206.
[5]CONSTANTINOU M C,TSOPELAS P,HAMMEL W,et al.Toggle-brace-damper Seismic Energy Dissipation Systems[J].Journal of Structural Engineering,2001,127(2):105-112.
[6]CONSTANTINOU M C,TSOPELAS P,HAMMEL W.Testing and Modeling of an Improved Damper Configuration for Stiff Structural Systems[R].Buf-falo:University at Buffalo,the State University of New York,1997.
[7]HWANG J S,HUANG Y N,HUNG Y H.Analytical and Experimental Study of Toggle-brace-damper Systems[J].Journal of Structural Engineering,2005,131(7):1035-1043.
[8]GB 50011-2001,建筑抗震设计规范[S]. GB 50011-2001,Code for Seismic Design of Building[S].
[9]FEMA 273,NEHRP Guidelines for the Seismic Rehabilitation of Buildings[S].
[10]ASHER J W,YOUNG R P,EWING R D.Seismic Isolation Design of the San Bernardino County Medical Center Replacement Project[J].Structural Design of Tall Buildings,1996,5(4):265-279.
[11]VANMARCKE E H,GASPARINI D A.A Program for Artificial Motion Generation User's Manual and Documentation[R].Cambridge:Massachusetts Institute of Technology,1976.

Memo

Memo:
-
Last Update: 2009-03-20