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주창길,한주연,박태원,Ju, Chang-Gil,Han, Ju-Yeon,Park, Tae-Won 한국교육시설학회 2014 敎育施設 Vol.21 No.2
In the case of low-rise buildings in seismic performance evaluation, lateral force resistance of the pillars affects the seismic performance of the building. Evaluation of the seismic performance of the column is determined by the holding performance is evaluated by comparing the shear strength and bending strength it was destroyed bylow intensity. In case of the school building, in order to install the large windows for ventilation and lighting of the partition walls are located between the pillars. The case of the pillars of these, shear failure occurs in the event of an earthquake is often, in the seismic performance evaluation, partition wall and the wall of the shim is evaluated ignoring, pillar of the general pillars If you have to calculate the results of the seismic performance distorted that are destroyed by bending behavior can be evaluated as often. Results of the study, when assessed by distinguishing the effective length of the column, it was found that when a seismic load is applied, it is possible to accurately predict the failure mode, reliable results of seismic performance evaluation of the school building.
주창길(Ju, Chang-Gil),한주연(Han, Ju-Yeon),박태원(Park, Tae-Won) 한국교육시설학회 2014 敎育施設 Vol.21 No.2
In the case of low-rise buildings in seismic performance evaluation, lateral force resistance of the pillars affects the seismic performance of the building. Evaluation of the seismic performance of the column is determined by the holding performance is evaluated by comparing the shear strength and bending strength it was destroyed bylow intensity. In case of the school building, in order to install the large windows for ventilation and lighting of the partition walls are located between the pillars. The case of the pillars of these, shear failure occurs in the event of an earthquake is often, in the seismic performance evaluation, partition wall and the wall of the shim is evaluated ignoring, pillar of the general pillars If you have to calculate the results of the seismic performance distorted that are destroyed by bending behavior can be evaluated as often. Results of the study, when assessed by distinguishing the effective length of the column, it was found that when a seismic load is applied, it is possible to accurately predict the failure mode, reliable results of seismic performance evaluation of the school building.
지하주차장을 대상으로한 고강도철근 사용에 대한 경제성 분석
조승호,주창길,백인관,정란 단국대 부설 리모델링연구소 2013 리모델링 연구소 논문집 Vol.11 No.1
In this study, Rebar of SD500, SD600 is applied to the designed or constructed in domestic underground parking. Analyzed the variation of the rebar according to the strength of the rebar and the construction cost of the change. Most of underground parking appear reduction of Rebar ratio. In this case, the load acting on the underground parking garage is large. So, Rebar placing is dominated by element's stress. Therefore, Large amounts material of slabs, beams and foundations are reduced. In case of columns and wall, Ratio of Material reduction is less than former. Because Splice and Anchorage of rebar amounts are increased and Hoop and horizontal rebar amounts are fixed. Percentage of rebar of the column and wall are 15%. So, Showed a less impact on the reduction of total material.
아파트를 대상으로한 고강도철근 사용에 대한 경제성 분석
조승호,주창길,백인관,정란 단국대 부설 리모델링연구소 2013 리모델링 연구소 논문집 Vol.11 No.2
In this study, Rebar of SD500, SD600 is applied to the designed or constructed in domestic apartment. Analyzed the variation of the rebar according to the strength of the rebar and the construction cost of the change. Reinforced volume reduction of the apartment building is less than the other. Because, A low wall of rebar reduction is more than 50% of the total. The reason for the previous, Reduction of the quantity of horizontal reinforcement does not appear and Vertical rebar reinforcement than the stress is determined by the placement of rebar in which the upper floor.
MOC 장착에 따른 CNG-디젤 혼소엔진의 배출가스 영향
남충우(Chungwoo Nam),이호길(Hokil Lee),김성철(Sungchoel Kim),강정호(Jeongho Kang),박주창(Joochang Park),김태민(Taemin Kim),최수식(Susik Choi) 한국자동차공학회 2018 한국자동차공학회 학술대회 및 전시회 Vol.2018 No.11
Methane emission from natural gas engine is difficult to remove from typical three-way and diesel oxidation catalyst after combustion. Therefore, recently trends of aftertreatment with natural gas engines have add methane oxidation catalyst to meet the strengthen of emission regulation. This paper is on the methane emission characteristic of natural gas-diesel dual fuel engine, which are new paradigm fo diesel engine. In this study, the 6.7liters EURO-VI diesel engine was converted to implement the natural gas-diesel dual fuel engine. Also the MOC under development was add to installed meet the strengthened emission regulation. The test conditions compared the diesel operation and the CNG-diesel operation and analyzed the emission characteristics of DOC up stream, DOC down stream and AOC down stream under each condition. Also, MOC was installed in front of DOC to compared the characteristics of emissions that according to the MOC installation. As a result In the CNG-diesel dual fuel operation condition, PM, NOx, and CO2 were reduced compared to diesel operating condition, but CO and THC were increased. Also In the CNG-diesel dual fuel operation condition more than 99% of the THC emission was methane. Meanwhile Even though there has been about 76% of THC reduction due to MOC integration, it still were not meet EURO-6(WHSC) emission standards. Thus a strategy to improve performance and efficiency of MOC catalyst and CNG fuel management system control will be established.