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이산요소해석을 통해 다양한 하중을 받는 치장조적조의 실험 검증 및 성능 평가
진수민(Jin, Su Min),이기학(Lee, Kihak) 한국콘크리트학회 2021 한국콘크리트학회 학술대회 논문집 Vol.33 No.2
본 연구는 치장조적조 성능 실험에 대한 이산요소 해석 검증을 실시하고 실제 적용 상황에서의 성능 확인을 위하여 여러 형태의 가력 조건에 따른 이산요소 해석 모델의 성능 평가를 실시하였다. 여러 변수를 바탕으로 실험 결과의 비교를 통해 해석모델의 유효성을 검증하고 향후 조적조시스템의 구조안정성을 평가하는 DB를 구축할 수 있도록 개발하였다. This research conducted a discrete element analysis verification for masonry wall performance experiments and evaluated the performance of discrete element analysis models for verification of performance in applied situations. Based on this, the safety evaluation of the structure was developed a discrete element analysis model according to various types of trimmings.
경계조건과 형태 기반으로 구성된 5개 와이어웨이시스템의 진동대 실험을 통한 내진성능 검증
진수민(Su-Min Jin),Han Van Tran,김성찬(Sung Chan Kim),신지욱(Jiuk Shin),이기학(Kihak Lee) 한국조명·전기설비학회 2021 조명·전기설비학회논문지 Vol.35 No.12
This paper presents the results of an experimental seismic investigation performed on prototypes made of a pulley-wireway system with four different boundary conditions and an existing lighting structure support, a one-way system, through a tri-axial shaking table test. The attention of this study focused on evaluating the seismic qualification of the prototypes based on ICC-ES AC 156. In particular, the influence of the mounting position of prototypes at the ceiling, steel frames, walls, and beam or column on the seismic response of the building was also discussed in detail. The seismic performance in terms of acceleration and displacement response was also evaluated by power spectral density-based (PSD), and root mean square-based (RMS), which showed a better seismic response of H-beam frame type than other types of pulley-type wireway system. Finally, it was determined that the newly developed lighting support with the addition of a pulley is capable of dissipating seismic energy more effectively than the previous lighting equipment system.
유한요소해석을 통한 진동 감쇠형 와이어웨이시스템의 내진성능 검증
진수민(Su Min Jin),트란 반 한(Han Van Tran),김성찬(Sung Chan Kim),신지욱(Jiuk Shin),이기학(Kihak Lee) 한국조명·전기설비학회 2021 한국조명·전기설비학회 학술대회논문집 Vol.2021 No.11
The addition of the pulley component resulted in the increasement of energy absorption capacity as well as friction effect and showed in significant reduction in maximum displacement and oscillation after the peak responses.
유한요소해석을 통한 진동 감쇠형 와이어웨이시스템의 내진성능 검증
트란 반 한,진수민,김성찬,차지현,신지욱,이기학,Tran, V. Han,Jin, Su Min,Kim, Sung Chan,Cha, Ji Hyun,Shin, Jiuk,Lee, Kihak 한국공간구조학회 2020 한국공간구조학회지 Vol.20 No.4
A new lighting support structure composing of two-way wires and pulley, a pulley-type wireway system, was developed to improve the seismic performance of a ceiling type lighting equipment. This study verifies the seismic performance of the pulley-type wireway system using a numerical approach. A theoretical model fitted to the physical features of the newly-developed system was proposed, and it was utilized to compute a frictional coefficient between the wire and pulley sections under tension forces. The frictional coefficient was implemented to a finite element model representing the pulley-type wireway system. Using the numerical model, the seismic responses of the pulley-type wireway system were compared to those of the existing lighting support structure, a one-way wire system. The addition of the pulley component resulted in the increasement of energy absorption capacity as well as friction effect and showed in significant reduction in maximum displacement and oscillation after the peak responses. Thus, the newly-developed wireway system can minimize earthquake-induced vibration and damage on electric equipment.