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SE1-012
16:10
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16:25
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Experimental planning and structural collapse behavior of 7-story reinforced concrete building model under near-fault earthquakes
The near-fault effect on buildings and infrastructures is a significant issue of human life and property in Taiwan because there are numerous active faults inside this island. It is well-known that special characteristics with large displacement and high velocity can be observed close to a near-fault. However, it is difficult to reproduce such a near-fault earthquake record by using the existing test facilities of National Center for Research on Earthquake Engineering (NCREE). Thus, the experimental studies on the near-fault effect are rare. Furthermore, many buildings were severely damaged in the Meinong earthquake in 2016 Among them, some of mid- to high-rise buildings were severely damaged or collapsed and caused numerous casualties. In recent years, more and more residential or commercial buildings were constructed. Thus, the casualty risk caused by the collapse of mid- to high-rise buildings should not be underestimated, and the method of seismic assessment for mid- to high-rise buildings to identify the building with high collapse risk becomes a critical issue. NCREE establishes the Tainan Laboratory to equip with a high performance six degree-of-freedom seismic simulation testing system which can simulate the near-fault motions. After the Tainan Laboratory is completed, NCREE provided better seismic experimental services to the government agencies, academia and industry which is beneficial to improving public safety against earthquake disasters. This study focuses on the experimental result of collapse tests on the new shaking table in Tainan Laboratory. After the shaking table tests, the test result is compared with the proposed seismic assessment method. This experiment can offer abundant information of RC frames collapse behavior and help the researchers to upgrade existing analytical models to make better prediction for RC buildings’ seismic behavior, also, to raise up the more economical improvement.
Fu-Pei Hsiao
Mid- and high-rise building, Near-fault effect, Reinforced concrete structure, Shaking table test
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SE1-013
16:25
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16:40
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2018 THREE-DIMENSIONAL SHAKING TABLE TEST OF A 7-STORY REINFORCED CONCRETE BUILDING UNDER NEAR-FAULT EARTHQUAKES ON THE NCREE TAINAN LAB. – OVERVIEW OF THE BLIND ANALYSIS CONTEST
In Taiwan, near fault effects on building structures are an important issue. The performance of the shaking table in NCREE Tainan Laboratory can present the characteristics of near-fault ground motions. A blind prediction contest is held in order to contribute to the development of computational prediction of seismic responses and efficient modeling techniques for reinforced concrete frame buildings involving near fault effects and “soft/weak” 1st story condition. The goal is to promote efficient seismic performance assessment methods for reinforced concrete frames. Accordingly, shaking-table tests of a 1/2-scale 7-story reinforced concrete frame building have been carried out. The purpose of the contest is to stimulate development of computational methods and efficient modeling techniques for nonlinear dynamic analysis. In this report, statistical data are presented for the types and parameter values employed by the participants of the contest, and the key factors to accurate estimation of extreme inelastic behavior are investigated.
Yuan-Tao Weng, Jui-Liang Lin, Yeong-Kae Yeh, Fu-Pei Hsiao
Blind analysis contest, Near fault effect, seismic response
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SE1-001
16:45
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17:00
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BLIND ANALYSIS OF A 7-STORY REINFORCED CONCRETE BUILDING USING DETAILED FINITE ELEMENT MODELING
A detailed finite element (FE) model of a 7-story reinforced concrete building was elaborated for a blind analysis contest held by National Center for Research on Earthquake Engineering (NCREE) in Taiwan.
Yasunori Mizushima, Takuya Kinoshita, Yuki Idosako, Hiroto Takatsu
detailed finite element model, reinforced concrete, Shaking table test
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SE1-002
17:00
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17:15
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TECHNICAL REPORT OF STAGE-II FOR BLIND ANALYSIS CONTEST ON A 7-STORY REINFORCED CONCRETE BUILDING UNDER NEAR-FAULT EARTHQUAKE
This paper shows the modeling method and th eanalysis result for "Blind Analysis Contest On a 7-story Reinforced Concrete Building Under Near-Fault Earthquake" to be held in Tainan, Taiwan.
Riku Sakamoto, Zhang Kaiwei, Li-Wei Yu, Kuang-Yen Liu
Blind Analysis, RC structure
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SE1-003
17:15
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17:30
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INSTRUCTIONS FOR BLIND ANALYSIS CONTEST ON A 7-STORY REINFORCED CONCRETE BUILDING MODEL UNDER NEAR-FAULT EARTHQUAKES
This technical report describes the post test blind analysis for a 7-story reinforced concrete building under near-fault earthquakes by Tsinghua University, using the MSC.MARC software with the THU-Fiber beam model and multilayer shell model to simulate the structure.
Xinlei Jin, Chi Zhang
7-story reinforced concrete building, multilayer shell model, parameter sensitivity analysis, THU-Fiber beam model
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SE1-011
17:30
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17:45
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ANALYTICAL MODELING OF A HALF-SCALE SEVEN-STORY REINFORCED CONCRETE BUILDING SHAKEN TO NEAR-FAULT EARTHQUAKE MOTIONS
A half-scale, seven-story reinforced concrete frame building was shaken to collapse on the shaking table at NCREE Tainan Laboratory in Taiwan. This experiment was used as a case study to investigate modeling techniques for building structures subjected to near-fault motions. The 2016 Meinong earthquake resulted in serious building damages in Tainan, especially to several high-rise buildings. The major causes of damaged structures are: (1) soft and weak first-story and (2) non-ductile member or connection detailing. In order to study and analyze the dynamic response of high-rise buildings based on construction practice in Taiwan and investigate the difference of the building damage caused by the near-fault and far-field earthquakes. A three dimensional, half scale, seven-story reinforced concrete (RC) frame infilled with RC walls except the lower two stories has been tested on the shaking table. After excitation, the specimen suffered noticeable structural damages to column, beam and beam-to-column connections. The experiment results were compared to an ETABS model that uses a nonlinear time history analysis to evaluate the accuracy and effectiveness of the modeling technique. It was verified that a better simulation on failure mode of frames can be obtained in the nonlinear time history analysis than in the nonlinear static analysis. This study can be used to develop the seismic evaluation procedure for existing high-rise reinforced concrete structures; moreover, the analysis and simulation technique of the dynamic behavior of the high-rise building can be further improved. The research results of this project can provide the engineering community a modeling guideline and improve the structural design and analysis technologies in Taiwan.
Shu-Hsien Chao, Yu-Fang Liu, Jui-Liang Lin, Chun-Hsiang Kuo, Chung-Che Chou, Yuan-Tao Weng, Te-Kuang Chow
1999 Chi-Chi Earthquake, near fault earthquakes, Nonlinear Time History Analysis, Shaking table test
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