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김규석(Kyu Suk Kim),양영성(Young Sung Yang),최산호(San Ho Choi),김필중(Pil Jung Kim) 한국강구조학회 1993 韓國鋼構造學會誌 Vol.5 No.3
This paper is to study experimentally the ultimate strength of reinforced perforated composite beams. One perforated steel beam, one normal composite beam, two perforated composite beams and two composite beams with reinforced web openings according to the opening to the opening shape ratio. Moment-shear ratio was 330. Opening depth was 70% of steel beam depth. As the result, we could find out the following conclusions : 1. The concert slab in composite beam can increase up so much the strength of the beams. 2. By using reinforcement in the vicinity of openings, the ultimate strength of composite beams with web opening can increase up to that of composite beams without web openings. 3. The ultimate strength of perforated composite beams according to the moment-shear ratio was little concerned with opening length.
항복선 (降伏線) 이론에 의한 콘크리트 유전 원형강관 기둥 - H 형강 보 접합부의 국부내력 평가
김재건(Jae Keon Kim),강현식(Hyun Sik Kang),윤명호(Myung Ho Yoon),문태섭(Tae Sup Moon),김규석(Kyu Suk Kim),김동규(Dong Kyu Kim),김덕재(Duck Jae Kim) 한국강구조학회 1997 韓國鋼構造學會誌 Vol.9 No.3
This paper is concerned with an theoretical study on the local load-caning capacities of Concrete-Filled Circular Tubular (CFCT) column to H-beam connections by yield line theory. In this paper, the three cases which is assumed the yield line are involved. The first model is simplified yield line model. The first model is modified by x and kx factor. The last one is Morita`s model. Local load-carrying capacities are compared experimental results with theoretical ones about each cases. The purpose of this paper is to investigate the local strength of connections to evaluate the structural behavior of the CFCT column to H-beam connections. Being studied on the test and theoretical results. the basic data for non-diaphragm connection design would be suggested.
R.C.D 공법을 이용한 주각부의 스터드코넥터 전단내력에 관한 실험적 연구 (1)
김태영(Tai Young Kim),김영호(Young Ho Kim),김상모(Sang Mo Kim),정회용(Hoe Yong Cheong),이병찬(Byoung Chan Lee),김규석(Kyu Suk Kim) 한국강구조학회 1997 韓國鋼構造學會誌 Vol.9 No.3
Nowadays, in the constructions of large-scale structure, there is applied top-down construction method for the purpose of the safety of building construction and the effects of a shortening term. In the design of headed stud connectors encased column base, shear strength of stud connector have followed the shear strength evolution of composite steel-concrete beams. The purpose of this paper is to compare stud shear strength evolution of encased column base with that of composite beam. Push-out specimens were tested by each parameter of horizontal reinforcements(hoop, D10@100), stud diameter(Φ13, 16, 19, 22). and concrete compressive strength(F_c=240, 300 ㎏/㎠). And the other aim of this paper is to acquire the basic data of structural design calculated to the number of headed stud connector.
합성용 데크플레이트를 이용한 합성슬래브의 전단부착강도에 관한 연구
김형준(Hyung Joon Kim),허충(Chung Hui),김진호(Jin Ho Kim),윤명호(Myung Ho Yoon),이명재(Myung Jae Lee),문태섭(Tae Sup Moon),김규석(Gyu Suk Kim),김덕재(Duck Jae Kim),김동규(Dong Kyu Kim) 한국강구조학회 1997 韓國鋼構造學會誌 Vol.9 No.3
The objective of this study is to investigate the longitudinal shear strength of the composite slabs with the composite metal deckplate. The experiment was done with composite slabs which use the composite deckpalte. This paper compares the most important design methods for composite slabs - the m+k method and the partial connection theory. The partial connection theory has been established by Helmut Bode. 12 specimens(SPI) were tested for the study. And the informations of 2 specimens were used from a previous test. Parameters in the study are the thickness of deckplate(1.2, 1.6㎜), and shear span(L/7, L/3. L/4), shapes of deck plate etc. Based on experimental and analytical study, the longitudinal shear strength in the shear span were developed in this study. The modified formula would be consisted for the longitudinal shear strength.