|Table of Contents|

Importance and Seismic Evaluation of Rural Masonry Structure Wall Under Strong Earthquake(PDF)

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

Issue:
2021年04期
Page:
33-43
Research Field:
Publishing date:

Info

Title:
Importance and Seismic Evaluation of Rural Masonry Structure Wall Under Strong Earthquake
Author(s):
LIN Yong-jun1;  ZHOU Chang1;  YANG Min-run1;  XIAO Tian-xu1;  YANG Bing2
(1. School of Civil Engineering, Southwest Jiaotong University, Chengdu 610031, Sichuan, China; 2. China Southwest Architectural Design and Research Institute Corp. Ltd, Chengdu 610041, Sichuan, China)
Keywords:
strong earthquake;  rural masonry structure;  the importance of wall;  seismic evaluation;  earthquake influence coefficient
PACS:
TU362
DOI:
10.19815/j.jace.2020.09019
Abstract:
In order to clarify the importance differences of different masonry structure elements in rural areas under strong earthquake, and thus take targeted measures to make the structural seismic evaluation and reinforcement maintenance more reasonable, the typical masonry structure in rural areas of China was taken as the research object, the influences of seismic influence coefficient, structural column(ring beam)setting, wall elevation position, seismic wave spectrum characteristics, and seismic wave duration on the importance of the wall were analyzed from the angle of static response and dynamic response, and wall importance coefficient was introduced into the seismic evaluation of rural masonry structures. The study results show that with the increase of earthquake influence coefficient, the importance of wall in the tension area increases, while that in the compression area decreases. When the seismic influence coefficient is small, the wall with the constructional column and the ring beam is more important than that without the structural column and ring beam, and vice versa. In the same plane position, the importance of wall compression increases from floor top to floor bottom. The dynamic parameters, such as seismic peak intensity, frequency spectrum characteristics, and duration, have a certain influence on the wall importance coefficient, but the peak ground motion acceleration is still the most critical factor affecting the wall shear importance. In the seismic evaluation of rural masonry structure buildings, the introduction of the importance coefficient of walls can make clear the critical walls in masonry structure buildings.

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Last Update: 2021-07-10