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드라이빙핀전용 전단연결재를 이용한 합성보의 탄소성 거동
양일승,오영호,이만재,Yang, Il-Seung,Oh, Young-Ho,Lee, Man-Jae 한국강구조학회 2012 韓國鋼構造學會 論文集 Vol.24 No.1
합성보는 철골보와 콘크리트슬래브를 스터드볼트로 일체화한 구조이며, 일반적으로 용접을 이용한 스터드볼트(Stud Bolts)가 연결재로 많이 사용된다. 그러나, 스터드볼트는 감전사고와 같은 전기재해나 용접불량 등 문제점을 가지고 있다. 따라서, 드라이빙핀을 이용한 기계적 접합이 대안으로 대두되고 있다. 본 연구는 드라이빙핀 전용 제안형 전단연결재를 이용한 합성보의 횡하중(지진하중이나 풍하중)시 구조적 성능을 평가하고자 한다. 기존형 합성보과 제안형 합성보는 안정된 탄소성 거동을 나타내었으며 기둥주변에서 콘크리트 압괴로 내력이 저하되었다. 따라서, 제안형 합성보는 기존형 합성보를 대체할 수 있을 것으로 판단된다. The adoption of a composite beam system is regarded as a simple but effective solution because it improves the overall stiffness, strength and stability of the structure by welding shear studs. However, welding shear studs poses problems including electric shock and weld defects. Mechanical methods have emerged as an alternative to metallurgical methods for connecting the H-beam and shear connector. Four specimens were tested in order to compare the structural behavior of the proposed composite beams with that of the classical composite beam given the condition of horizontal loading. With the original composite beam (FCB-SB specimen) using stud bolts, hysteresis loops are stable, but its strength decreased with the crashing of the concrete slab around the column. The suggested composite beams using shear connectors also yielded stable hysteresis loops. Consequently, use of the suggested composite beams instead of the original composite beam are recommended.
연직하중 시 드라이빙핀전용 전단연결재를 이용한 합성보의 내력
양일승,Yang, Il-Seung 대한건축학회 2011 대한건축학회논문집 Vol.27 No.9
Power actuated fasteners in sort of mechanical methods have appeared to be an alternative to metallurgical methods in the connection of H-beam and shear connector. Power actuated fasteners can be driven by power actuated tools or by pneumatically driven tools. This mechanical connection method has many advantages over metallurgical connection methods. First of all, a power supply is unnecessary and there are no concerns about an electrical accident. However, the handling of the mechanical connection method takes severs caution. Since the sound at the time of installation is loud, discretion is needed in a quiet place. Four specimens were tested so as to compare the structural behavior of the proposed composite beams with that of the classical composite beam in condition of vertical load. In the results, the proposed composite beam proposed in this paper, having shear connector using driving pins, showed sufficient plastic ductility and strength. And, yielding and maximum strength specimens in suggested composite beams using suggested shear connectors are 1.05~1.06 times than those of CB-SB specimen, which is composite beams using stud bolts.
양일승(Il Seung Yang),조중현(Joong Hyun Cho) 한국관광연구학회 2014 관광연구저널 Vol.28 No.11
The purpose of this study was to study and analyze the cases of rural theme parks in Gwangju and Jeonnam using rural reservoirs, which are the major waterfront spaces in rural regions, to derive their performances and limitations and to suggest the measures to form rural theme parks using rural reservoirs and to revitalize their operation. As a result of case studies and analysis, there were performances such as the increase in amenity resources and visitors and cooperative operation with nearby villages and farm households. On the other hand, there were limitations such as lack of characteristics and differentiation of parks, lack of experience and amusement facilities with programs, high ratio of transit or simple visitors, and difficulties securing the financial resources for maintenance. In order to form and revitalize the rural theme parks using rural reservoirs, therefore, it is necessary to introduce unique and differentiated themes and facilities, expand the introduction of experience and amusement facilities, seed substantial ways to attract private funds, revitalize the development and operation of park programs, secure the budget for constant operation of parks, and participate the spontaneous management of local community residents.
고인성 시멘트 복합재료를 사용한 철골 가새의 접합에 관한 연구
양일승(Yang Il-Seung),윤현도(Yun Hyun-Do),김순철(Kim Soon-Chul),이강민(Lee Kang-Min),한병찬(Han Byung-Chan),박완신(Park Wan-Shin) 대한건축학회 2004 大韓建築學會論文集 : 構造系 Vol.20 No.11
Steel braced frames retrofit method has been broadly used in Japan due to their effectiveness in both light weight and construction periods. However steel braced frames retrofit method has difficulties in application on the inner frames of buildings to be retrofitted consequently, there have been demands for the braced frames retrofit method that can be broadly and easily applicable to both inner and outer frames of the buildings. In this study, a retrofit method of the steel brace frames having High Performance Fiber Reinforced Cementitious Composites (HPFRCCs) and steel bars at the mid span of the steel brace member is proposed. Pre-fabricated upper and lower segments of the brace member are connected in-site with HPFRCCs, consequently the proposed method is applicable to the inner frame of the building as a seismic retrofit method with advantages of simple and rapid installation. From the cyclic test of specimens, the test results clearly showed that steel brace using HPFRCCs and steel bars ensure the better cyclic compressive performance than the normal braced members. The better construction effectiveness also can be achieved with the proposed retrofit method.
내진 건축구조용 냉간성형 각형강관의 휨성능에 관한 실험적 연구
양일승(Yang, Il-Seung),정진안(Chung, Jin-An),이세정(Lee, Sae-Jung),정경수(Chung, Kyung-Soo) 대한건축학회 2012 大韓建築學會論文集 : 構造系 Vol.28 No.6
The use of SN steel in the building structure improved the reliability of the building. As a preceding study, the material properties of SPAR295 square pipes manufactured using SN400B plates were evaluated. The yield and ultimate strengths at the edges of SPAR295 square pipes did not satisfy the design codes based on the values at the sides. The bending tests of cold rolled steel square pipes for aseismatic building structures are performed. The main results show that: 1) the ultimate bending strength is much great, and the energy dissipation capacity is very well, which can make to consume great energy in earthquake. This SPAR295 can meet the need of seismic design very well. 2) The specimens are showed long yield platform after yielding, great cumulative energy-dissipating capacity and well ductility. 3) The fracture of specimens are caused by the local buckling and fracture of welding vicinity.
양일승(Yang Il-Seung),문연준(Moon Youn-Joon),오영호(Oh Young-Ho),김순철(Kim Soon-Chul) 대한건축학회 2011 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.31 No.2(구조계)
The easy assembly joint system is required because the number of skillful carpenters is decreasing remarkably in korea. Main objective of this study is to investigate experimently the structural performances beam-column joints using the new type connecting system, which is composed of metal connector and adhesive. The metal connectors embedded into the wood with adhesive in new type connecting system. In order to improve the bond strength, threaded steel rods are used as metal connector. From this result, specimens using the suggested joints are shown stable hysteresis behaviors and can be calculated by the suggested equation.