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권영웅 ( Kwon Young Wung ),홍성걸 ( Hong Sung Gul ),박홍근 ( Park Hong Gun ),송진규 ( Song Jin-gyu ),정광량 ( Chung Kwang Ryang ),김민수 ( Kim Min Su ) 한국구조물진단유지관리공학회 2002 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.6 No.2
This paper concerns the seismic performance of high-rise concrete shear wall buildings with piloti and discontinuity. We could evaluate the performance levels of life safety, allowable shear stress and plastic hinge occurrence through the seismic performance assessment procedures. We could grade up the seismic performance level with seismic rehabilitation technique.
권영웅(Y. W. Kwon) 한국동력기계공학회 2006 한국동력기계공학회 학술대회 논문집 Vol.- No.-
The main advantages of the Dry CVT with V-belt, which has been popular in Asia, are a simple mechanism, less maintenance and low cost. The important factors which have an influence on the performance of the CVT are the weight of the centrifugal roller, the change of axial distance and spring force. Based on an experiment, the effects of load torque, speed ratio, and revolution of both the driving pulley and the driven pulley during the alteration of the axial distance, roller weight and spring constant were studied.
권영웅 ( Kwon Young Wung ),이영섭 ( Lee Young Sub ),김민수 ( Kim Min Su ) 한국구조물진단유지관리공학회 2001 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.5 No.2
This study concerns the experimental mechanical characteristics of reinforced concrete beams damaged by the thermal effect. Test factors are the heating time and temperature and test levels are 30, 60 and 120 minutes’ exposure under standard time-temperature relationships. Test results are as follows : (1) The max deflection rates of damaged RC beams are 11.5%, 13% and 11% according to the exposed time of 30, 60, 120 minutes respectively. (2) The reduction rates of strength capacity of damaged RC beams are 5%, 13.8% and 21.3% according to the exposed time of 30, 60 and 120minutes. (3) The ductility of damaged RC beams decrease according to the exposed time. (4) The slips of damaged RC beams increase according to the exposed time.