scholarly journals EXPERIMENTAL STUDY ON SEISMIC PERFORMANCE EVALUATION OF TRADITIONAL TIMBER FRAME STRUCTURES WITH LARGE HANGING WALLS

2016 ◽  
Vol 81 (727) ◽  
pp. 1479-1489
Author(s):  
Saki OHMURA ◽  
Yasuhiro NAMBU ◽  
Yoshihiro SHIBUYA ◽  
Mina SUGINO ◽  
Yasuhiro HAYASHI
Keyword(s):  
Experimental Study ◽  
Performance Evaluation ◽  
Seismic Performance ◽  
Frame Structures ◽  
Seismic Performance Evaluation ◽  
Timber Frame

Seismic Performance Evaluation on Historical Timber Frame Structures with Large Hanging Walls

2015 ◽  
Vol 104 (21) ◽  
pp. 1-8
Author(s):  
Saki Ohmura ◽  
Tatsuya Yokobe ◽  
Yoshihiro Shibuya ◽  
Yasuhiro Nambu ◽  
Mina Sugino ◽  
...  
Keyword(s):  
Performance Evaluation ◽  
Seismic Performance ◽  
Frame Structures ◽  
Seismic Performance Evaluation ◽  
Timber Frame

Seismic Performance Evaluation for Steel-Frame-Structure Considering Member Fracture

2017 ◽  
Author(s):  
Kensuke Shiomi
Keyword(s):  
Performance Evaluation ◽  
Dynamic Response ◽  
Dynamic Analysis ◽  
Seismic Performance ◽  
Ground Motions ◽  
Steel Frame ◽  
Frame Structures ◽  
Seismic Performance Evaluation ◽  
Steel Frame Structures

Through the 2011 Tohoku Earthquake or the 2016 Kumamoto Earthquake, much larger earthquakes are considered recently in the seismic designs of large steel-frame structures. When structures are exposed by these severe ground motions, partial destructions in the structures, such as damage or fracture of members could happen. Especially, the low cycle fatigue of steel structures because of the repeated load from these long-term ground motions is a serious problem. However, current seismic performance evaluation method based on nonlinear dynamic analysis considers only elastic and plastic deformation of each member, excluding the fracture of members. If this member fracture happens during earthquakes, there is considered to be many effects on the seismic performance, like the changes of the vibration property, the dynamic response and the energy absorbance capacity of structures. Therefore, the fracture of members is preferably taken into account in the seismic performance evaluation for these large earthquakes. This paper proposes the dynamic analysis method for steel-frame structures which can express the member fracture. Dynamic analyses considering and not considering member fracture under the repeated loads supposing the long-term earthquake are conducted to the FEM model of full-scale structure. By comparing each result, the effects of considering member fracture to the seismic performance such as the dynamic response and the energy absorbance capacity are discussed.

scholarly journals Research on seismic performance of traditional Chinese hall-style timber buildings in the Song and Yuan dynasties (960–1368 AD): a case study of the main hall of Baoguo Temple

2022 ◽  
Vol 68 (1) ◽  
Author(s):  
Yijie Lin ◽  
Qing Chun ◽  
Chengwen Zhang ◽  
Yidan Han ◽  
Hui Fu
Keyword(s):  
Performance Evaluation ◽  
Seismic Performance ◽  
Lateral Displacement ◽  
Stable State ◽  
Time History ◽  
Seismic Action ◽  
Plastic Hinges ◽  
Seismic Performance Evaluation ◽  
Timber Frame ◽  
Width Direction

AbstractThe hall-style timber frame built in the Song and Yuan dynasties (960–1368 AD) is one of the most important structural prototypes of the traditional timber architecture in East Asia. The current research, through a typical case of the main hall of Baoguo Temple in Ningbo, China, aims to present an accurate and effective seismic performance evaluation method applicable to hall-style timber structures without time–cost expenditure. To obtain more realistic seismic response of hall-style timber frame, a simplified numerical model of the main hall of Baoguo Temple is established based on in situ measurements and low-cycle reversed loading tests results of mortise–tenon joints, moreover, nonlinear static pushover analysis has been performed to quantify the seismic performance levels under five loading conditions. The generalized force–deformation relationship of the timber plastic hinges is modified regarding to the moment–rotation curves of four special mortise–tenon joints. The seismic behaviour of global hall-style timber frame is evaluated through capacity spectrum method and verified by time history analysis, local failure mechanisms are evaluated by the occurrence sequence of plastic hinges. Finally, a performance-based assessment method adequate for the traditional hall-style timber architectures has been proposed with comparison to the current codes. The results have shown that the structural stiffness of the width-direction is less than that of the depth direction due to the asymmetrical configuration of the timber frame, and the building can maintain a stable state under large lateral displacement before collapsing. The inter-storey drift angles of the building under peak ground accelerations of 0.1 g, 0.2 g, and 0.3 g are less than the suggested ultimate values in the current local codes, however, the main hall represents to be more vulnerable to damage when suffer seismic action along the width-direction. This research can provide a reference for seismic performance evaluation and preventive conservation of ancient hall-style timber architectural heritage.

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