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.

Study on the Method of Structural Seismic Performance Evaluation Based on the Damage Spectra

2010 ◽  
Vol 163-167 ◽  
pp. 4324-4330
Author(s):  
Jun Teng ◽  
Hu Bing Tu
Keyword(s):  
Performance Evaluation ◽  
Seismic Performance ◽  
Structural Damage ◽  
Evaluation Method ◽  
Low Cycle Fatigue ◽  
Time History ◽  
Seismic Damage ◽  
Hysteretic Energy ◽  
Seismic Performance Evaluation ◽  
The Impact

Park-Ang seismic damage model is increasingly concerned due to it considers not only maximum elasto-plastic deformation, but also low cycle fatigue accumulated hysteretic energy, while research on the method of seismic performance evaluation based on the model is still rare. Therefore, a new evaluation method on the basis of damage spectra is proposed in this paper. Damage spectra of site I considering three kinds of ultimate deformation ductility factor are built firstly, and then transformation relationship between damage of MDOF and SDOF of frame structures is researched. Lastly, procedure of seismic damage evaluation on the structure is proposed. An example is used to confirm the validity of the spectra-based seismic performance evaluation method. The example analysis shows that: the method proposed here is reasonable to consider the impact of the cumulative hysteretic energy on the structural damage. The results from the method have good consistency with the time history analysis results. It can assess the extent of structural damage from the statistical viewpoint.

scholarly journals Seismic Performance Evaluation of Boil-Off Gas Compressor in LNG Terminal

2015 ◽  
Vol 9 (1) ◽  
pp. 557-569 ◽  
Author(s):  
Hyo-Sang Park ◽  
Tae-Hyung Lee
Keyword(s):  
Performance Evaluation ◽  
Seismic Performance ◽  
Fragility Curves ◽  
Time History ◽  
Likelihood Estimation ◽  
Integrated System ◽  
Limit States ◽  
Seismic Performance Evaluation ◽  
Strength Limit ◽  
Anchor Bolts

Liquefied natural gas (LNG) terminals, one of the lifeline facilities, need to be protected by a proper seismic design against extreme earthquakes. An LNG terminal consists of a series of process facilities that are connected by pipelines of various sizes. Boil-off gas (BOG) compressor is one of the critical process facilities whose failure will cause the functional failure of the LNG terminal. Process facilities, including BOG compressor, other than LNG storage tanks and pipes, have not been a major concern in terms of the seismic performance evaluation. In this study, the seismic performance of a BOG compressor is evaluated and the seismic fragility functions are presented. An integrated system of a BOG compressor is modeled by a 3 dimensional finite element modeling scheme. A series of time history analyses are conducted to monitor the behavior of anchor bolts, one of the most critical elements in the BOG compressor. To develop fragility curves, a set of 20 ground motions are selected from a database of the historic earthquake accelerations. Fragility curves are developed based on the maximum likelihood estimation approach with respect to the strength limit states. When an earthquake load is applied to the BOG compressor, the main motor is likely to overturn and the flywheel is likely to slide, and, consequently, anchor bolts will be subjected to tension and shear force, respectively. It is concluded that the BOG compressor is safe against the design level earthquake

Displacement Based Seismic Performance Evaluation of Reinforcement Concrete Structures

2010 ◽  
Vol 163-167 ◽  
pp. 1063-1067
Author(s):  
Qing Xuan Shi ◽  
Qiu Wei Wang ◽  
Kun Yang
Keyword(s):  
Performance Evaluation ◽  
Seismic Performance ◽  
Time History ◽  
Time History Analysis ◽  
Capacity Spectrum Method ◽  
Seismic Performance Evaluation ◽  
Spectrum Method ◽  
Capacity Spectrum ◽  
History Analysis ◽  
Displacement Based

To further understand displacement based seismic theory of building structures, the seismic performance evaluation using capacity spectrum method related to damping is carried out for the reinforced concrete frame-shear wall model structure of a thermal power main plant. By comparing with time-history analysis results, it can be seen that some problems such as equivalence of multi-degree-of-freedom system and value of equivalent damping ratio in capacity spectrum method remains to be further investigated. Force and displacement response of structures and plastic hinges position of all members could be obtained through nonlinear push-over analysis after determining the top displacement; weak parts and damage pattern of structures could also be easily found out by this method. At last, research shows that dynamic time-history analysis can be replaced by static push-over analysis, which is regarded as an exact seismic performance evaluation method by contrast.

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
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