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Flat 슬래브 구조물에 대한 온도프리스트레싱 공법적용
정중연 ( Joung Jung-yeun ),정치영 ( Jung Chi-young ),안진희 ( Ahn Jin-hee ),김상효 ( Kim Sang-hyo ) 한국구조물진단유지관리공학회 2010 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.14 No.1
In this study, it was studied applying thermal prestressing method (TPSM) to the flat slab structure which is recently popular in building structure. In case of the TPSM, both sectional increase effect and prestress effect can be achieved by applying the thermal prestressing method. Therefore before applying the TPSM to practical slab case, experimental research was conducted to evaluate workability and effect of eccentricity of prestressing coverplate. Main variation of the experiments was eccentricity of coverplate. As a result of this study, it was concluded that the TPSM can be applied to the flat slab structures and also that applicability can be achieved by TPSM.
슬래브구조물에 대한 온도프리스트레싱 공법 실적용 및 평가
정치영 ( Jung Chi-young ),정중연 ( Joung Jung-yeun ),안진희 ( Ahn Jin-hee ),김상효 ( Kim Sang-hyo ) 한국구조물진단유지관리공학회 2010 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.14 No.2
In this study, it was studied applying thermal prestressing method (TPSM) to the slab structure which is in service. In case of the TPSM, both sectional increase effect and prestress effect can be achieved by applying the thermal prestressing method. The measurement to evaluate the applying prestress was conducted and it was compaerd with the results of FE analysis. As a result of this study, it can be confirmed that the expected values for prestress were similar with the measured values.
슬래브구조물에 대한 온도프리스트레싱 공법 실적용 및 평가
정치영(Jung, Chi-Young),정중연(Joung, Jung-Yeun),안진희(Ahn, Jin-Hee),김상효(Kim, Sang-Hyo) 한국구조물진단유지관리학회 2010 한국구조물진단학회 학술발표회논문집 Vol.2010 No.2
In this study, it was studied applying thermal prestressing method (TPSM) to the slab structure which is in service. In case of the TPSM, both sectional increase effect and prestress effect can be achieved by applying the thermal prestressing method. The measurement to evaluate the applying prestress was conducted and it was compaerd with the results of FE analysis. As a result of this study, it can be confirmed that the expected values for prestress were similar with the measured values.
단부 수평가동-수직구속 부재를 적용한 라멘형 가설교량의 거동평가
김상효,정중연,허원호,정치영,Kim, Sang Hyo,Joung, Jung Yeun,Heo, Won Ho,Jung, Chi Young 한국강구조학회 2013 韓國鋼構造學會 論文集 Vol.25 No.1
기존 라멘형 가설교량은 주거더의 온도신축에 따라 벤트부에 과도한 수평력이 유발되는 것을 방지하기 위하여, 연장을 짧게 분할하여 가설되고 있다. 이 때 분할되는 구간에서 중복 설치되는 벤트부가 생기게 되어, 교량의 통수단면 감소와 형하공간 감소에 따른 문제와 중복 설치된 벤트부에 의한 경제성 감소 문제가 발생한다. 따라서 본 연구에서는 라멘형 가설교량 벤트부의 수평력 문제를 해결하고, 중복 설치되는 벤트부를 절감시키기 위한 단부 수평가동-수직구속 부재를 이용한 라멘화 공법을 제안하고, 이에 대한 거동특성분석을 수행하였다. Most rahmen-type temporary bridges are constructed with limited bridge length to prevent excessive horizontal forces due to the thermal expansion of main girder. To achieve a long length temporary bridge several independent bridges are required and they can not share the bents, at the rahmen-type ends, with the adjacent ones. The additional bents require more cost and reduce the section space under bridges. In order to remove extra bents with keeping the rahmen effect at the bridge ends, this study proposes a new rahmen-type movable joint system for temporary bridges.