|Table of Contents|

Vibration Reduction Analysis of Spring Damping Support on Progressive Collapse Resistance ofStadium Steel Structure(PDF)

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

Issue:
2022年03期
Page:
101-110
Research Field:
Publishing date:

Info

Title:
Vibration Reduction Analysis of Spring Damping Support on Progressive Collapse Resistance ofStadium Steel Structure
Author(s):
TAN Jian1;  LIN Song-wei1; 2;  OU Tong1;  GUO Shu-yan1;  WANG Da-yang2;  ZHANG Yan-hui1;  SHI Xu-yang1;  WU Gui-guang1
(1. Guangdong Architectural Design & Research Institute Co., Ltd., Guangzhou 510010, Guangdong, China; 2. School of Civil Engineering, Guangzhou University, Guangzhou 510006, Guangdong, China)
Keywords:
spring damping support;  progressive collapse resistance;  vibration reduction;  nonlinear dynamic method;  energy dissipation component
PACS:
TU398.7
DOI:
10.19815/j.jace.2021.07050
Abstract:
The vibration reduction principle of spring damping support was expounded, and its structure form was given. The calculation principle of nonlinear dynamic analysis method used in the demolition component method was introduced. Taking the steel roof of the stadium of the third Asian Youth Games as the research subject, the response of the structure under the progressive failure of the rod system was analyzed. The influence of spring damping support on the progressive collapse resistance of the structure was studied. The results show that the progressive collapse resistance of the steel roof of the stadium is good. The maximum displacement of the cantilever end of the progressive failure structure of the rod system is 387 mm and the deflection is 1/90, which will not lead to the overall collapse of the structure; after the component is removed, the structure enters the motion state immediately. The kinetic energy, strain energy, cantilever end displacement and support abdominal rod stress of the structure increase sharply at the moment of demolition, and gradually decrease after reaching the peak value, and oscillate repeatedly with time, and finally tend to be stable, and the structure reaches a stable equilibrium again. The displacement of cantilever end and the stress of key members calculated by nonlinear dynamic method are slightly larger than those by static analysis method, and the method is safer. The spring damping support can effectively reduce the dynamic response of the structure and improve the anti-progressive collapse ability of the structure, and the damping effect is affected by spring and damping. When the structure adopts energy dissipation components such as spring damping bearings, the dynamic nonlinear analysis method should be used to consider the favorable influence of energy dissipation components.

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Last Update: 2022-05-30