|Table of Contents|

Seismic simulation vibration table test study on wide-column double-beam frame structural system(PDF)

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

Issue:
2025年06期
Page:
35-45
Research Field:
建筑结构
Publishing date:

Info

Title:
Seismic simulation vibration table test study on wide-column double-beam frame structural system
Author(s):
WANG Wenhai;  CAO Dafu;  FEI Yadong;  LIU Jiaqi;  ZHANG Ying
(School College of Civil Engineering and Transportation, Yangzhou University, Yangzhou 225000, Jiangsu, China)
Keywords:
wide-column double-beam;  reinforcement retrofit;  seismic performance;  vibration table test;  scale-down model
PACS:
TU375.4
DOI:
10.19815/j.jace.2024.09089
Abstract:
In order to study the force mechanism, damage characteristics and overall seismic performance of the wide-column double-beam frame structural system under seismic action, a three-story wide-column double-beam frame structural system model with a scaled-down ratio of 1:4 was fabricated using particulate concrete, galvanized iron wire, clay bricks and other materials. A vibration table test study was carried out under X- and Y-direction horizontal earthquakes, the damage forms, damage processes and dynamic characteristics of the model structure were obtained under different working conditions of earthquakes. The results show that the structure is basically in a good state under the peak ground acceleration of 0.055g(g is gravity acceleration)and 0.15g earthquake actions, with minor damage occurring under the peak ground acceleration of 0.31g. After experiencing multiple earthquake actions of 0.4g, the model structure suffers severe damage but dose not collapse, and still maintains a certain level of bearing capacity. The most serious damage to the structure occurs at the corner where the external wall intersects vertically and horizontally, but the external wall and the frame are still well connected. The structural system is reasonable and reliable, possessing sufficient lateral stiffness and excellent seismic performance, and can meet the fortification targets of “undamaged under minor earthquakes, repairable under moderate earthquakes, and not collapsing under major earthquakes” in the 7th seismic intensity region.

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Last Update: 2025-11-25