철골철근비에 따른 혼합구조보의 내력 및 변형 특성에 관한 연구

임병호,박정민,김화중,Lim, Byung Ho,Park, Jung Min,Kim, Wha Jung 한국강구조학회 2002 韓國鋼構造學會 論文集 Vol.14 No.1

기존에 수행된 연구에서는 혼합구조보의 구조적 특성을 결정할 수 있는 제 영향인자 중에서 주근의 정착방법, 전단스팬비의 변화, 이질구조부의 보강 유무, 보강 방법의 변화 등에 따른 일련의 연구 성과들을 발표하였으며, 이러한 결과를 바탕으로 본 연구에서는 이질구조부에 대한 응력전달 및 내력상승 측면에서 철골단면적에 대한 인장철근비(철골철근비)를 변화시킨 단부 RC 중앙부 SC조 혼합보에 대해 RC부 주근의 정착방법(플랜지위 직접 용접, 스터드볼트 용접정착)에 따른 구조적 거동 특성을 고찰하였다. 그 결과 주근의 정착방법에 따른 구조적 특성은 거의 나타나지 않았으며, 철골철근비가 증가함에 따라 내력면에서는 효율성을 기대할 수 있으나, 연성능력이 저하될 수 있으므로 혼합구조보의 구조적 특성을 극대화시키기 위해서는 적정한 철골철근비로 제한하는 것이 필요한 것으로 나타났다. In the preceding study, a series of results was presented according to factors like as attaching method of main bar, shear span to depth ratio, reinforcing method for different types of region among various factors, which could determine the properties of composite beams. Based on these results, this study was planned to investigate the structural behaviors of according to attaching method of main bar for composite beams(end-reinforced concrete(RC), center-steel concrete (SC)) varying ratio of tensile bar to steel mainly. Consequently, there were little difference according to attaching method of main bar. And as the ratio of tensile bar to steel increase, the efficiency of strength was high, but ductile capacity of beams could deteriorate. Therefore, to maximize the structural properties of composite beams, it was considered that the ratio of tensile bar to steel should be limited.

이질 구조부 보강방법에 따른 혼합구조보의 휨거동 특성에 관한 연구

임병호,박정민,김화중,Lim, Byung Ho,Park, Jung Min,Kim, Wha Jung 한국강구조학회 2001 韓國鋼構造學會 論文集 Vol.13 No.4

This study was to investigate structural behavior of composite structure beams composed of end-RC. center-Steel according to respective reinforcing method for connection zone composed of different materials (SRC) while attaching main bars on steel-flange by welding. The main reinforcing methods are as follows ; non-reinforcing, vertical shear reinforcing (type-stirrup), inclined reinforcing(type-x), horizontal reinforcing(type-web, 0.3L), double horizontal reinforcing (type-web, 0.3L), vertical reinforcing (type-flange, 0.3L). Consequently, It showed little difference in structural properties like ductility and strength according to the attaching method of main bars. For Maximizing the structural properties of composite beam, the most effective methods were vertical reinforcing one and double horizontal reinforcing one. 본 연구에서는 단부 RC 중앙보 S조 혼합보에 대해 RC부 주근의 정착방법(플랜지 위에 직접 용접, 스터드 볼트 용접 정착) 과 이질구조부 (SRC 부)의 보강 방법에 따른 구조적 거동 분석을 고찰하였다. 이질구조부 보강방법으로는 무보강, 수직전단보강근 보강[D10-@50], 경사보강(X자형 보강), 수평보강1[웨브보강(0.3L)], 수평보강2[웨브보강(0.3L)], 수직보강[플랜지보강(0.3L)]과 같은 보강방법을 주요변수로 하여 구조적 특성을 상호 비교 분석하였다. 그 결과 보 주근의 정착방법에 따른 연성능력 및 내력 등과 같은 구조적 특성에는 큰 차이가 없었으며, 혼합구조보의 구조적 특성을 극대화시키기 위해서는 이질구조부를 수직보강한 경우와 2열 수평으로 보강한 방법이 가장 효과적인 것으로 나타났다.

의전행사와 호텔 시설

임병호,Lim, Byung-Ho 대한건축사협회 1986 建築士 Vol.1986 No.6

산업부산물인 가네트를 이용한 콘크리트의 성질개선에 관한 기초적 연구

임병호,박정민,김태곤,김화중,Lim, Byoung-Ho,Park, Jung-Min,Kim, Tae-Gon,Kim, Wha-Jung 한국콘크리트학회 1999 콘크리트학회지 Vol.11 No.1

본 연구는 부존자원의 고갈화 문제에 따른 신소재 개발이라는 성자원적인 측면과 산업부산물의 재활용이라는 환경친화적인 측면에 상응하여 현재 경북지역에서 발생하는 산업 폐기물인 가네트를 대상으로 제반 물성 실험을 통하여 콘크리트 제조시 활용할 수 있는 방안에 대해 실험실적을 통해 그 가능성을 검토하였다. 그 결과 가네트 미분말은 포졸란 반응성과 상관관계를 갖는 실리카와 알루미나의 함유량이 약 50% 정도로써 화학조성상 혼화재로서 사용 가능성을 보여 주었으며, 응결시간은 가네트 치환량이 많아 질수록 다소 줄어드는 것으로 나타났으며, 플로우 시험결과 일반 모르터에 비해 가네트의 사용량이 많아짐에 따라 플로우치가 약간씩 증가하는 경향을 보이며 콘크리트에 활용시 시공연도를 증진시켜 줄 것으로 기대된다. 또한 모르터에 대한 압축강도 시험결과 물결합재비에 따라 약간씩의 차이는 있지만 대체적으로 일반 모르터에 비해 약간씩 압축강도를 상회하고 있으며 최고의 강도 발현율은 치환율 10% 정도로 사료되며, 기존 혼화재(실리카 흄, 플라이애쉬)에 비해 동수준의 강도 발현율을 나타냄으로써, 콘크리트 제조시 시멘트 절감효과 및 성질개선을 위한 혼화재로써의 사용가능성을 보여 주었다. This paper investigated the possibility of appling to concrete through fundamental experiment for garnet, which was industrial wastes generated in kyung pook region, in aspects of development of new materials and recycling of industrial wastes due to shortage of natural resources. Consequently, garnet powder showed the possibility of admixture as showed in the chemical composition because the content of silica and alumina in relation to pozzolanic activity was about 50%. The time of setting was more or less diminished as the increasing of replacement ratio of garnet. In flow test, flow values tended to increase to some degree as the increasing of replacement ratio of garnet. Therefore, application of garnet was expected to improve the workability of concrete. The compressive strength of mortar replaced by garnet was respectively increased as compared with plain mortar and the maximum strength was showed in replaced by 10%, however a little different to the change of W/B ratio. Also, the possibility of admixture to reduce the amount of cement and to improve the property of concrete was showed as the strength of mortar replaced by garnet was comparable to that by existing admixture(silica fume, fly-ash).

임대주택 유형별 거주자의 주거인식 비교 연구

임병호(Lim, Byung-Ho),지남석(Ji, Nam-Seok),윤진성(Yoon, Jin-Sung),이재우(Lee, Jae-Woo) 대한국토·도시계획학회 2013 國土計劃 Vol.48 No.2

힌지 연결부를 갖는 PHC 말뚝의 횡방향 반복하중 거동

임병호(Lim, Byungho),강준원(Kang, Jun Won),윤혜진(Yoon, Hyejin),김영진(Kim, Young Jin) 대한토목학회 2018 대한토목학회 학술대회 Vol.2018 No.10

글로벌 가치사슬 재편에 따른 물류 변화가 물가 상승에 미치는 기여도 분석

임병호(Byeong-ho Lim),장정인(Jeong-In Chang) 한국해양환경·에너지학회 2022 한국해양환경공학회 학술대회논문집 Vol.2022 No.6

신 · 구도심의 업종분포특성 비교연구

임병호(Lim. Byung-Ho) 한국지역개발학회 2008 韓國地域開發學會誌 Vol.20 No.2

This study was performed to make a comparative study on facilities distribution of new and old urban central district in Daejeon. The results are summarized as follows First, the facilities such as food and beverage, private service, business had a high distribution ratio, so that it was supposed that those were frequent facilities in urban central district. Secondly, correlation analysis was executed to examine the similarity of facilities distribution between the old urban central district and the new one. Analysis showed that a correlation coefficient was 0.866. And regression analysis was performed to derive a trend line of facilities distribution between two urban central districts. Thirdly, the facilities such as printing and publishing, clothing and accessory, lodging, retail and miscellaneous goods, fumiture and industrial arts, electric machine, building materials had characteristics of concentrating in new urban central district, while the facilities as study and training, business, hospital, liquor store had characteristics of converging into old urban central district And Finally, the facilities such as study and training, business, hospital, liquor store were major facilities of new urban central ditrict. And the facilities as printing and publishing, clothing and accessory, lodging, retail and miscellaneous goods were major facilities of old urban central district. The results of this study expected to clue on revitalization of old urban central district and decentralization of city.

배타적경제수역에서의 기국주의 도입에 따른 파급효과 전망

임병호(Byeongho Lim),김태진(Tae-Jin Kim),장정인(Jeong-In Chang) 한국해양환경·에너지학회 2023 한국해양환경·에너지학회 학술대회논문집 Vol.2023 No.05

도시의 중심성과 연관성에 기초한 지역의 공간구조 설정방법 및 탐색적 적용에 관한 연구 : 충청권 적용 사례를 중심으로

임병호(Lim, Byung-Ho) 한국지역개발학회 2020 韓國地域開發學會誌 Vol.32 No.3

The purpose of this study is to establish a analysis method of spatial structure and apply the method to the case area of Chungcheong. In this study, the components of spatial structure were set up in three categories: population, facilities and activities. The total population and the productive population were selected as indicators of population category. The number of employees, the number of hospital beds, the area of commercial facilities, and the number of high school students were chosen as those of facilities category. And the number of transfer and commuters were selected as those of activities category. To establish spatial structure, the centrality index and the relationship index were derived from the selected indicators. The centrality index was derived from the indicators of population and facilities, and the relationship index was derived from those of activities. The final outcome of spatial structure was completed by scheming the index of centrality and relationship into the space. In accordance with the above methodology, the spatial structure of Chungcheong province was analyzed. The results showed that the centrality and relationship of Daejeon, Cheongju, Cheonan, and Sejong in Chungcheong province were high and strong. This study is expected to be provided as a basis research for various discussions on spatial structures.