角型有孔 H 形鋼보의 終局耐力에 관한 硏究

韓德傳 瑞逸專門大學 1991 論文集 Vol.9 No.-

This paper is an experimental study on the strength and deformation of H-shape steel beams with rectangular opened web. Tested and interpreted the test and theoretical analysis based on the stress-strain relationship. Web opening lengths of specimen are 1.0h, 1.5h, and 2.0h. In the relation of maximum bending strength, it was corresponded that the experimental results and theoretical.

合成 圓形鋼管 기둥의 耐力에 관한 實驗的 硏究

한덕전 瑞逸大學 1998 論文集 Vol.16 No.-

The maximum load carrying capacity and deformation capacity of steel circular columns infilled concrete under the axial forces are investigated in experiments of the compressive strengths. The experimental parameters are the diameter to thickness ratios of steel tube columns and the compressive strength of infilled concrete. As the results of the experiments, the confinement effect of the infilled concrete by steel circular tube was slightly increased as the diameter to thickness ratios of steel circular tube and the strength of infilled concretes decreased. The predicting formulae of ultimate strengths of steel circular columns are infilled concrete demonstrated that the values of the prediction are slightly higher than that of test results.

SRC短柱의 挫屈强度에 관한 硏究

한덕전 瑞逸大學 1999 論文集 Vol.17 No.-

This paper is a study on the buckling strength of steel reinforced concrete stub-columns. The main parameters of the test are hoop bar ratios and end eccentric ratios. As a theoretical method for evaluating the bucking strength of eccentrically loaded steel reinforced concrete stub-columns, N-M interaction method, which takes the stress of elements of member sections is in a state of full plasticity distribution, was applied. In order to prove the hypothesis in the experiment, steel reinforced concrete stub-columns specimens were produced according to each parameter, and they were mono-compressed.

쉬어키를 가진 면진건축물의 동적해석

한덕전,김태호,Han, Duck-Jeon,Kim, Tae-Ho 한국공간구조학회 2007 한국공간구조학회지 Vol.7 No.1

지진 다발 지역인 일본에서 최근 초고층 건축물에 전단키를 갖는 면진 구조물에 많이 건설되고 있으며 초고층 건축물은 중저층 건축물과 비교하여 고유진동주수가 크기 때문에 지진하중이 작아 지진에 대한 피해가 적다. 지진에 의하여 큰 전단력이 발생할 경우에 전단키를 갖는 면진장치의 전단키는 파괴되고 면진장치가 지진에 거동하게 되며 만약에 퐁하중이 지진하중보다 크다면 전단키를 지진하중에 대하여 설계하는 것이 아니라 풍하중에 의하여 설계하여야 한다. 중진지역인 한국에서도 면진 건축물에 있어서 전단키의 필요성 요구되며 이에 대한 검증이 필요한 실정이다. 본 논문에서는 5층과 15층 면진 건축물에 대하여 전단키를 적용하고 지진해석을 실시하여 그 거동을 비교분석, 면진 건축물에 대한 전단키의 필요성을 알아보았다. Recently, high-rise base isolated building structures with shear keys are often constructed in Japan which frequently occurs earthquakes. High-rise buildings are less damaged because those buildings have longer natural period than md or low rise buildings. The shear key is device that prevents the base isolators operating by the wind loads not by the earthquake loads. In case of big base shear force acts on the shear keys by earthquake, this device is broken and base isolator is operated. Therefore, seismic intensities play a role in acting on the shear keys. If wind loads are hither than the earthquake loads, the shear keys designed by wind loads are not operated in earthquakes. So, the requirements of shear keys in high-rise base isolated building structures must be examined in Korea with moderate seismic legions. In this study shear keys are applied with 5 and 15 stories base isolated building structures and investigated their dynamic responses to original and 1/2 scale downed El Centre NS(1940) ground motions. The results show that the yield shear forces of the shear keys affect significantly the dynamic behavior of base isolated building structures

콘크리트 중진 원형강관단주의 내력에 관한 연구

한덕전,김규석 대한건축학회 1997 大韓建築學會論文集 Vol.13 No.10

내재해형 조립 비닐하우스 골조 구조시스템 개발 연구

한덕전,심종석 한국농촌건축학회 2016 농촌건축 : 한국농촌건축학회논문집 Vol.18 No.2

The collapsing accidents of greenhouse frames have been increased yearly due to strong wind and heavy snow, but as it was, there were few studies about the structural safety of greenhouses. Therefore, this study was carried out to develop the stress tolerant structural frame systems in built-up greenhouses. The vertical loading experiment of developed scale models were implemented and the developed types of models were simulated by 3-D analysis program in this study. These types of models, which are existing type and honeycomb type, in arch and standard style frames were classified. As a result of this study, it was verified that the honeycomb type model of arch style frame is better than the existing type model of it in stress resistance against snow load and wind load.

SRC柱의 中心壓縮性狀에 관한 實驗的 硏究

韓德傳 瑞逸專門大學 1993 論文集 Vol.11 No.-

This paper is the experimental study on the compressive characteristics of concentrically loaded steel reinforced concrete columns. In order to obtain the information on the structural characteristics of steel reinforced concrete columns for concrete encased H-shape steel section, parametric experimental study carried out on the maximum compression strength, deflection curve and failure mechanism under concentically axial load. Variables chosen for experiments are slenderness ratio(λ), ratios of steel(_(s)P_(c)), ratios of hoop(P_(w)) and axis of loading direction(axis of H-shape steel). The test runs as follows:In increasing ration of hoop, this study presented the enhancement of compressive strength, ductility of SRC columns. On the orther hand, it is scarecely improved to the compressive strength by the rests of parameter.

부재의 이력모델에 따른 건축구조물의 내진성능 평가

한덕전,고현,Han, Duck-Jeon,Ko, Hyun 한국공간구조학회 2009 한국공간구조학회지 Vol.9 No.4

성능에 기초한 내진설계에서 구조물의 지진에 대한 성능평가를 위하여 구조물의 비탄성 지진거동을 정확하게 예측하는 젓이 중요하다. 정확한 시스템의 연성능력 평가를 위해서는 각부재의 하중과 변형의 관계를 보다 실제적으로 규정하는 것이 중요하다. 비선형 해석에 의한 구조물의 비탄성 거동 파악을 위해서 단순화된 부재의 하중-변형 관계 모델을 적용한다면 구조물의 실제적이고 정확한 거동을 예측하기에는 어려움이 있다. 본 논문에서는 하중-변형 관계를 Backbone 이력모델을 적용하여 단순화된 하중-변형 관계를 적용한 모델과 시스템연성능력 및 층연성능력을 비교, 평가하였다. 해석결과로 이선형 이력모델의 경우에 시스템 및 층 연성도의 과소평가는 실제구조물의 소성거동을 과소평가하는 곁과를 초래하며 보다 정착한 비선형해석을 위하여 부재의 이력모델은 Backbone 이력모델을 사용하는 것이 바람직하다. It is very important that predict the inelastic seismic behavior exactly for seismic performance evaluation of a building in the performance based seismic design. But, it is difficulty that predict the building behavior of actual and exact in simplified load-deformation relation of structural material and members. In this study, system ductility and story ductility capacity of building structure used to the Backbone hinge Model are estimated and compared considering the characteristics of load-deformation relation of structural material and members. Analyses results, bilinear hinge model has lower system ductility and story ductility demands than those of backbone hinge model.

지진지반운동의 수직성분을 고려한 증진지역 건축구조물의 지진응답평가

한덕전,고현 한국공간구조학회 2009 한국공간구조학회지 Vol.9 No.1

최근의 근단층지반운동인 Northridge 지진(1994, 미국), Kobe 지진(1995, 일본), Izmit 지진(1990, 터키)은 큰 수직성분의 영향으로 건축물 및 교량에 심각한 손상을 주었다. 일반적인 건축구조물의 내진설계에서 지진하중의 수직성분을 고려하여 설계하는 경우는 드물다. 본 연구에서는 지진하중의 수직성분 영향의 고려 유무에 따른 예제구조물의 기둥부재의 축력의 변화와 부재 단부의 소성힌지회전각을 산정하여 시스템의 손상상태를 평가하여 보았다. 해석결과 축력의 증가는 기둥부재의 손상에 의한 전체 구조시스템의 story collapse mechanism의 가능성을 주게 되므로 근단층지반운동이 예상되는 부분에서는 지진하중의 수직성분에 대한 영향을 고려하여야할 것으로 판단된다. Recent earthquake, such as the Northridge(1994), the Kobe(1995) and the Izmit(1990) earthquakes, gave serious damage in various buildings and bridges by the vertical seismic component. Most of the seismic designs neglect the vertical seismic component for usual frame structures. The purpose of this study is to evaluate the effects of the vertical seismic component and to compare the axial force of columns and plastic rotation angle of the analytical models in these effects. The vertical seismic component produced a large increment of axial force in columns. And the vertical seismic component caused a significant increase of the damage in the columns. As analysis result, increase of axial force cause the damage of columns and give possibility of story collapse mechanism of the structure system. Therefore, area that near fault ground motion is expected may be consider the effect of vertical component of seismic ground motions.

鐵筋콘트리트短柱의 强度와 變形에 관한 硏究

韓德傳 瑞逸專門大學 1991 論文集 Vol.9 No.-

This paper is to study the enlargement of resisting force and ductility of the frame work by confing the hoop bars of reinforced concrete columns. The main prameter are the compressive strengths of concrete, the number of longitudinal reinforcing bars, and the space and the thickness of hoop bars. The hoop bars improve the ductility of reinforced concrete columns, is not the enlargement of resisting force.