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양원직,이원호,Yang. Wonjik,Yi. Waonho 한국방재학회 2013 한국방재학회논문집 Vol.13 No.6
최근 전 세계적으로 지진의 발생빈도가 증가하는 경향을 보이며 일부는 지진해일을 동반한 대규모 피해가 발생하고 있다. 2004년 12월 26일 인도네시아 수마트라 지진해일은 약 30만명의 인명피해와 100억 달러 이상의 재산피해가 발생하였으며, 2011년 3월 11일 일본 동북지방 태평양 연안 지진해일은 15,800여명의 인명피해와 25조엔 이상의 재산피해가 발생했다. 이러한 추세에도 불구하고 국내에서는 지진해일에 대한 국내 건축물의 대비책은 전무한 실정이다. 따라서 본 연구에서는 해일에 의한 건축물의 안전성 평가를 위하여 해일의 파력 및 건축물의 내력 평가방법을 소개한다. 또한 국내 건축물에 80%이상을 차지하고 있는 연안가 조적조 건축물에 대한 안전성을 침수심 깊이에 따라 평가하였다. The tsunami that hit Indonesia on December 26, 2004 took the lives of about 300,000 people and caused massive property damage amounting to more than 10 billion dollars. Another earthquake hit the northeastern coast of Japan on March 11, 2011 and triggered a tsunami that battered Japan`s coast, killing 15,800 and causing property damage amounting to 25 trillion yen. Despite this trend, no feasible actions have been taken on the buildings in Korea to reduce tsunami-induced damage. Therefore, this study will present the method of building`s resistance force evaluation and wave force for the building`s safety for the tsunami. Then, according to the inundation depth we examined the safety evaluation of masonry buildings in the shore that occupy more than 80% in Korean buildings.
에코인공경량콘크리트를 사용한 플랫플레이트 슬래브-기둥 접합부의 뚫림전단 성능 및 보강효과
양원직(Yang Won-Jik),이원호(Yi Waon-Ho),지석원(Jee Suk-Won),이학수(Lee Hak-Su) 대한건축학회 2009 大韓建築學會論文集 : 構造系 Vol.25 No.8
Reach on the high-strength lightweight concrete and the flat plate slab system have been doing for reducing dead load of structure and the maximum of doing the use area. But the lightweight concrete has a weak on the shear behavior, and flat plate slab is need to punching shear reinforcement at the critical section of around of columns. Typical shear reinforcement methods are stirrup and stud rail method. Two methods respectively have a disadvantage of economic efficiency and construction efficiency. Consequently, the objective of this study is to investigate in punching shear performance of flat plate slab using the lightweight concrete. Also shear reinforcement method is proposed for maximizing economic efficiency and construction efficiency, and that is compared with the conventional reinforcement method.
H형강의 웨브에 콘크리트를 충전한 합성보의 휨 성능 평가
양원직(Yang, Won-Jik),이원호(Yi, Waon-Ho),박진영(Park, Jin-Young),곽한식(Kwak, Han-Sik),윤현종(Yoon, Hyun-Jong),이학수(Lee, Hack-Soo) 대한건축학회 2012 大韓建築學會論文集 : 構造系 Vol.28 No.6
Due to the depression of economy, the resent construction market is in need of new process of the construction technology, which is efficient and economically sustainable development. Especially, due to the increase in steel costs, the research and development for the composite beam of steel frame buildings is actively taking place. Most types of the existing field assembly composite beams are concrete encased composite beams and they can be divided in two types: one is to produce in factories and assembled on site, such as common steel frame structure, the other is to place concrete after making a form around H-Beam. In the former case, the poured concrete increases the weight of beam and it causes a lot of time in handling on site. In the latter case, producing the form in the field results in an increase of construction time. Hence, this study shall develop the composite beam, which is able to solve the problems mentioned above. Besides it shall be verified its performance by experiment.
뉴랄-네트워크의 실시간 이력특성 동정기법에 의한 부분구조 유사동적 실험
양원직(Yang Won-Jik) 대한건축학회 2008 大韓建築學會論文集 : 構造系 Vol.24 No.3
In general, hysteresis models that are applied to a numerical analysis part of substructure on-line tests do not refer to an experimental behavior of members/subassemblage under loading tests on real-time basis. The objective of this study is to develop a new experimental technique for substructure on-line tests based on nonlinear hysteresis characteristics estimated with a neural network. New learning algorithms proposed by the authors are applied to substructure on-line tests and their results are compared with those by conventional test schemes. The results show that the new testingscheme successfully reproduce the dynamic behavior of model structure.