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모멘트골조와의 상호작용을 고려한 고층 전단벽의 항복변형성능 평가
강수민(Kang Su-Min),김재요(Kim Jea-Yo) 대한건축학회 2011 大韓建築學會論文集 : 構造系 Vol.27 No.1
The current seismic design code uses a displacement-based design scheme for structural designs of special shear walls in tall buildings. But the displacement-based design in the design code does not consider contributions of yield deformation. In this study, the contributions of yield deformation to total deformation of the special shear wall was analyzed through numerical parametric analyses. Since general tall building structures consist of moment frames as well as shear walls, the effect of moment frames on yield deformation was analyzed. For RC tall buildings, the yield deformation of the wall increased as the building height increased and reached more than 30% of total deformation. Also, as the rigidity of moment frames increased and the cantilever behavior of wall was more restricted, the yield deformation decreased. Therefore, based on the numerical results, the evaluation method for the yield deformation of shear walls was proposed considering interactions with moment frames, and the existing design equation for special shear wall was modified based on the proposed method for evaluating yield deformation.
비틀림 형상을 갖는 철골조 초고층 건물의 시공 중 구조거동 분석
최미미(Choe, Mi-Mi),김재요(Kim, Jea-Yo),엄태성(Eom, Tae-Sung) 대한건축학회 2013 大韓建築學會論文集 : 構造系 Vol.29 No.12
This study presents the analysis procedure and results for the structural performances of twisted tall buildings under construction. Six sample models of 60-story twisted steel structure in diagrid system or braced tube system were selected, and design load requirements during construction for the buildings were analyzed. At construction stages of 20 stories completion and 40 stories completion, the structural behaviors for wind and seismic loads were presented and compared with those of completed buildings. Also, for load combinations of gravity loads, seismic loads, and wind loads, the design loads of structural members were calculated, and design strength ratios at construction stages and after completion were compared. The analyzed results may be used as guidelines for structural design or construction planning.
주거용 RC 벽식 건물의 시공 중 지진하중의 영향 분석
최성현 ( Choi Seong-hyeon ),김재요 ( Kim Jea-yo ) 한국구조물진단유지관리공학회 2021 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.25 No.2
일반적으로 주거용 RC 건물은 설계단계에서 구조 설계를 하고 시공단계로 진입한다. 하지만 시공단계에서는 콘크리트의 강도와 강성이 완전히 발현되지 않는다. 또한 시공 기간은 건물의 사용기간보다 짧기 때문에 기간에 비해 과다한 지진하중이 재하되고 있다. 이에 따라 ASCE 37-14의 6.5/2 ASCE/SEI 7-10에는 시공 중 지진하중을 저감계수를 통하여 저감하여 검토할 수 있는 절차를 제시하고 있다. 하지만 정의한 지진하중의 저감계수는 모호한 범위를 제시하고 있다. 따라서 저감계수가 아닌 지진재현주기에 따른 지진하중을 주거용 RC건물의 예제 모델에 적용하여 구조거동 및 부재성능을 분석하였다.
철근콘크리트 특수전단벽의 변위기초설계를 위한 항복변형성능 평가
강수민(Kang Su-Min),김재요(Kim Jea-Yo) 대한건축학회 2010 大韓建築學會論文集 : 構造系 Vol.26 No.10
The current seismic design code uses a displacement-based design scheme for structural designs of special RC shear wall. But the displacement-based design in the current seismic design code does not consider contributions of yield deformation. In this study, the evaluation method of displacement capacity for RC shear walls was analyzed and applied to the parametric study for the lateral deformations of RC shear walls. Based on results of parametric analyses with various design conditions, the contribution of yield deformation to the deformation capacity of RC shear wall was analyzed. It was presented that, for RC shear walls in tall buildings, the yield deformation increased as the building height increased and reached more than 50% of total deformation. Therefore, for the reasonable design of special RC shear wall in tall buildings, the yield deformation should be included in the displacement-based design process.
레슬링 국가대표 선수단의 스포츠심리기술훈련 적용 사례 연구
정성현(Jung, Sung-Hyun),김재요(Kim, Jea-Yo),박정호(Park, Jung-Ho),오형석(Oh, Hyung-Suk) 한국체육과학회 2015 한국체육과학회지 Vol.24 No.4
The purpose of this study is a performance enhancement by applying the sport psychological skills training aimed at wrestling national team. This study four people male players, female players were targeted by four people from May 2014 to October 2014(InCheon ASIAN GAME) applying psychological skills training and sports psychology counseling. The experimental procedure is subject education / discussion / treatment / feedback / assessment order, the results obtained by them are as follows; 2014 Incheon Asian Games wrestling national team will prepare the psychological pressure coming from the outside before a large-scale convention, was faced with anxiety, worry, and many other issues. So researchers have so players have to pay. Players are more psychological skills training session is actively look again showed themselves psychological skills training. Psychological skills of players was enhanced to the appropriate level. In addition, players are evaluated through interviews sport psychological skills training program positively.
시공 및 설계조건을 고려한 플랫 플레이트의 장단기 처짐 분석
최미미(Choe Mi-Mi),최승민(Choi Seung-Min),엄태성(Eom Tae-Sung),김재요(Kim Jea-Yo) 대한건축학회 2012 大韓建築學會論文集 : 構造系 Vol.28 No.8
The structural design or construction plan of RC flat plates may be governed by serviceability conditions. Specially, since over-loading and tensile cracking in early-aged slabs significantly decrease the serviceability of a flat plate system under construction, construction conditions and their impacts on the slab deflections may be decisive factors in planning flat plate systems. In this study, the parametric study for short and long-term deflections of flat plates was performed. For various design and construction conditions of the number of shore floors, a slab construction cycle, a distance among shores, a section area of shore, a concrete strength, a compressive reinforcement ratio, a tensile reinforcement ratio, and a slab thickness, the construction loads were calculated by considering shore stiffness and concrete cracking as well as slab stiffness and construction steps, and then the immediate deflections at construction stages and long-term deflections at service stages were calculated. The effects of each design or construction condition on the control of short and long-term deflections were analyzed.