|Table of Contents|

Retrofitting Design for Passive Energy Dissipation Structure Based on Roof Displacement(PDF)

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

Issue:
2009年03期
Page:
89-95
Research Field:
Publishing date:
2009-09-20

Info

Title:
Retrofitting Design for Passive Energy Dissipation Structure Based on Roof Displacement
Author(s):
CHEN Min1;  ZOU Yin-sheng2;  ZHAN Fa-yi1;  LIU Chang2
1. School of Civil Engineering and Mechanics, Central South University of Forestry and Technology, Changsha 410004, Hunan, China; 2. School of Civil Engineering, Hunan University, Changsha 410082, Hunan, China
Keywords:
passive energy dissipation structure;  roof displacement;  Pushover analysis;  time history analysis;  damper
PACS:
TU352.1
DOI:
-
Abstract:
A simple and straight retrofitting design method was put forward based on roof displacement of building structure for passive energy dissipation. By Pushover analysis, a multi-degree-of-freedom system was transformed into an equivalent single-degree-of-freedom system. According to the dependence relationship between damping ratio of passive dampers and stiffness, an iteration method was presented. Then supplemental effective damping ratio and effective stiffness required to meet the performance criterion of the equivalent single-degree-of-freedom system could be solved conveniently by standard software through simple iterative computation, and two damper distribution patterns in multi-degree-of-freedom-system were also proposed. The procedure was applied to a ten-storey reinforced concrete frame structure for verification of the proposed method. The analytical results show the methods that can make satisfactory accuracy achieved for structure in Pushover analysis can be applied. The effects of energy dissipation for different damper distribution patterns are different.

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Last Update: 2009-09-20