Ancient Chinese Timber Architecture. II: Dynamic Characteristics
Publication: Journal of Structural Engineering
Volume 127, Issue 11
Abstract
It is imperative to preserve ancient Chinese timber architecture because the impacts of time and the environment have seriously reduced the resistance capability of these historical relics. However, little information can be found to provide basic knowledge for maintenance and reinforcement. Based on an experimental study of an ancient timber structure—the front tower over the North Gate of the Xi'an City Wall in China—a semirigid finite-element model (FEM) was developed to simulate the behavior of dou gong (corbel brackets) and tenon joints and a 3D FEM model was used to study the dynamic characteristics of the structure. The FEM program SAFATS was developed to conduct dynamic and earthquake response analysis for this kind of timber structure. By comparison with experimental results, the equivalent stiffness of the semirigid element was defined and the dynamic characteristics of the structure were obtained. Based on the analysis, it was found that the use of semirigid connections in timber structures, such as dou gong (corbel brackets) and tenon joints, may reduce the magnitude of earthquake forces significantly. It is concluded that the numerical method and computational program developed in this paper are able to determine basic characteristics and to provide solutions for the maintenance and reinforcement of a timber structure.
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Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 127 • Issue 11 • November 2001
Pages: 1358 - 1364
History
Received: Apr 3, 2000
Published online: Nov 1, 2001
Published in print: Nov 2001
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