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길이조절식 강관을 이용한 철근콘크리트 기둥의 내진보강효과
임지훈(Lim, Ji Hoon),김찬휘(Kim, Chan Hwi),이영학(Lee, Young Hak) 대한건축학회 2021 대한건축학회 학술발표대회 논문집 Vol.41 No.2
The seismic retrofit method for reinforced concrete (RC) column using steel rod was proposed to resist torsion and enhance workability. The proposed method is about installation steel rods on the RC column externally so that can enhance the maximum load when subjected to seismic load. To investigate seismic performance of proposed method, one RC column with non-seismic detail and one RC column applied proposed method were manufactured and conducted cyclic loading test. The experiment results showed that the proposed steel rod retrofit method effectively resisted seismic load by enhancing the maximum load about 45% against control specimen.
이원주 ( Wonjoo Lee ),유상우 ( Sangwoo Yu ),박수홍 ( Soohong Park ),김경훈 ( Kyunghoon Kim ),하다솜 ( Dasom Ha ),설은숙 ( Eunsuk Seoll ),한수진 ( Soojin Han ),박서하 ( Seoha Park ),이지수 ( Jisu Lee ),김찬휘 ( Chanhwi Kim ),강진구 ( 한국품질경영학회 2020 품질경영학회지 Vol.48 No.3
Purpose: This study was performed for advancement of aviation security equipments certification system. Methods: We investigated aviation security equipments certification-related registrations and the latest research trends of explosive detection technologies. Based on the literature studies, we draw the critical issues of the aviation security equipment certification system and suggested improvement direction. Results: We found some inaccuracies of the definition of explosive trace detection equipments, accreditation review committee, and performance evaluation test method. These problems should be modified to suit being practical. Conclusion: The present results would be useful for basic data for modifying aviation security equipments certification systems.
항공보안장비 성능 인증제의 현실과 품질개선에 관한 연구
이원주 ( Wonjoo Lee ),유상우 ( Sangwoo You ),박수홍 ( Soohong Park ),김경훈 ( Kyunghoon Kim ),설은숙 ( Eunsuk Seol ),한수진 ( Soojin Han ),박서하 ( Seoha Park ),이지수 ( Jisu Lee ),김찬휘 ( Chanhwi Kim ),강진구 ( Jingu Kang ),이기영 한국품질경영학회 2021 품질경영학회지 Vol.49 No.2
Purpose: This study focused on reality and quality improvement of aviation security equipment performance certification system. Methods: For this propose, we analyzed aviation security equipment performance certification system related legislations. Using analyzed data, we suggested advancement plan of aviation security equipment performance certification system. Results: In results, South Korea has been implementing aviation security performance certification system since October 2018. Parts for improvement of system are mutual certification with major countries that operate aviation security equipment performance certification systems, the spread of the defense industry’s system, development of similar substances for handling explosives, and introduction of preliminary inspections. Conclusion: The research result could be used as a basic data for upgrading Korea’s aviation security performance certification system.