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Title |
An Experiment Study on Verification for the Performance of Seismic Retrofit System Using of Dual Frame With Different Eigenperiod
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Authors |
오상훈(Sang-Hoon Oh) ; 최광용(Kwang-Yong Choi) ; 유홍식(Hong-Sik Ryu) ; 김영주(Young-Ju Kim) |
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DOI |
https://doi.org/10.11112/jksmi.2018.22.5.091 |
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Keywords |
내진보강 시스템 ; 진동대 실험 ; 듀얼 시스템 ; 내진성능 Seismic retrofit system ; Shaking table test ; Dual system ; Seismic Performance |
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Abstract |
The new seismic retrofit system in study propose is the Dual system, which aims to be applied to the seismically vulnerable low-story buildings. The Dual system is composed of existing structure, external retrofit frame and hysteretic steel dampers installed between former two components. The Dual system dissipates the energy by plastic deformation of steel damper caused by relative displacement due to the differences in stiffness, weight, and eigenperiod of each components. The dynamic test with shaking table was performed to verify the seismic performance of the proposed Dual system. As a result of the dynamic test, it is expected that the Dual system will improve the seismic performance due to the reduction of strain of 56% and the damage reduction of 93%, even though the energy is 1.84 times higher than that of the dual system. And the results of the study are presented as basic data of the study for setting the design range of the dual system.
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