scholarly journals SUGGESTION OF SEISMIC PERFORMANCE EVALUATION METHOD APPLIED ENERGY BALANCE- BASED SEISMIC RESISTANT DESIGN PROCEDURE TO TIME HISTORY RESPONSE ANALYSIS RESULTS

2008 ◽  
Vol 73 (632) ◽  
pp. 1755-1763 ◽  
Author(s):  
Haruyuki KITAMURA ◽  
Tomoe MAYAHARA ◽  
Megumi KAWASAKI
Keyword(s):  
Performance Evaluation ◽  
Energy Balance ◽  
Seismic Performance ◽  
Evaluation Method ◽  
Design Procedure ◽  
Time History ◽  
Response Analysis ◽  
Seismic Performance Evaluation ◽  
Time History Response ◽  
Performance Evaluation Method

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.

Reviews Research and Development of Reinforced Concrete Column Seismic Performance Evaluation

2013 ◽  
Vol 353-356 ◽  
pp. 2079-2083
Author(s):  
Yong Ping Xie ◽  
Lei Jia ◽  
Gang Sun
Keyword(s):  
Performance Evaluation ◽  
Reinforced Concrete ◽  
Seismic Performance ◽  
Evaluation Method ◽  
Modern Technology ◽  
Concrete Column ◽  
Reinforced Concrete Column ◽  
Seismic Performance Evaluation ◽  
Existing Problems ◽  
Performance Evaluation Method

Column is the key member of the seismic structures. Tthe failure of column will cause a large number of casualties. With the development of modern technology, more attention on seismic performance evaluation of reinforced concrete column is paid by academics. The theoretical basis and the concepts of seismic performance evaluation of reinforced concrete column are introduced firstly, and then the existing reinforced concrete column seismic performance evaluation method, the principle and the existing problems are reviewed. Meanwhile the key problems and tendency of research of seismic performance evaluation methods are putted forward.

scholarly journals Development of Preliminary Seismic Performance Evaluation Method for Water Supply Pipes considering Hydraulic Characteristics

2020 ◽  
Vol 20 (5) ◽  
pp. 319-327
Author(s):  
Jeongwook Choi ◽  
Doosun Kang ◽  
Donghwi Jung ◽  
Chanwook Lee ◽  
Do Guen Yoo ◽  
...  
Keyword(s):  
Performance Evaluation ◽  
Water Supply ◽  
Seismic Performance ◽  
Evaluation Method ◽  
Preliminary Evaluation ◽  
Hydraulic Characteristics ◽  
Seismic Performance Evaluation ◽  
Water Pipes ◽  
Detailed Evaluation ◽  
Performance Evaluation Method

The seismic performance evaluation of water supply systems is generally conducted in two stages: a preliminary and a detailed evaluation process. In the case of water pipelines, the priority pipes are selected through preliminary evaluation for a detailed evaluation. However, as the preliminary seismic performance evaluation method for existing water pipes solely focuses on their installation year and structural evaluation, it does not reflect the hydraulic characteristics of the water supply, which is the main purpose of water pipes. Therefore, this study proposed an evaluation method for the existing preliminary evaluation judgment index, by considering the calculation method for the probability of spatial failure, as well as the index obtained through hydraulic analysis results. The proposed methodology was applied to a domestic regional water supply system to be verified, and the results were analyzed. The proposed method is expected to serve as a result of basic research to enhance the seismic performance evaluation method in the future.

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

scholarly journals A Simple Critical Response Evaluation Method for Base-Isolation Building-Connection Hybrid System Under Double Impulse as Representative of Near-Fault Ground Motion

2021 ◽  
Vol 7 ◽  
Author(s):  
Tomoya Nakamura ◽  
Kohei Fujita ◽  
Izuru Takewaki
Keyword(s):  
Evaluation Method ◽  
Base Isolation ◽  
Ground Motions ◽  
Time History ◽  
Response Analysis ◽  
Response Evaluation ◽  
Critical Response ◽  
Near Fault ◽  
Pulse Type ◽  
Time History Response

We revisit a unique building system including a base-isolation, building-connection hybrid control system. The base-isolation system withstands pulse-type earthquake ground motions effectively and the building-connection system resists long-duration earthquake ground motions efficiently. A simple smart critical response evaluation method without nonlinear time-history response analysis is proposed for this hybrid building system under near-fault ground motions. An analytical expression of the maximum elastic-plastic deformation of a damped bilinear hysteretic single-degree-of-freedom (SDOF) model under critical double impulse as a representative of pulse-type ground motions derived in our previous paper plays an important role in the development of the simple critical response evaluation method. A two-step transformation procedure into an SDOF model is proposed. The first step is the transformation of the main base-isolated building into an SDOF system and the second step is the reduction of the connecting dampers supported on a sub building to a damper with a sophisticated compensation factor on an assumed rigid wall. The evaluation of damping coefficients with the consideration of yielding of the base-isolation story is a key step in this paper. Different from the previous work, the equivalent damping coefficient is derived depending on the response range before and after yielding of the base-isolation story. This treatment enhances the accuracy of the proposed method. The accuracy and reliability of the proposed response evaluation method is demonstrated by the time-history response analysis of the multi-degree-of-freedom (MDOF) model.

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