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WUF-B 접합부 및 합성슬래브로 설계된 철골모멘트골조의 에너지 기반 근사해석을 이용한 연쇄붕괴 저항성능 평가
노삼영(Noh, Sam-Young),박기환(Park, Ki-Hwan),홍성철(Hong, Seong-Cheol),이상윤(Lee, Sang-Yun) 대한건축학회 2018 大韓建築學會論文集 : 構造系 Vol.34 No.2
The progressive collapse resistance performance of a steel structure constructed using the moment frame with the WUF-B connection and the composite slabs was evaluated. GSA 2003 was adapted for the evaluation. Additionally the structural robustness and the sensitivity against the progressive collapse were analyzed. In the numerical analysis, a reduced model comprised of the beam and spring elements for WUF-B connection was adapted. The composite slab was modeled using the composite-shell element. Instead of the time-consuming dynamic analysis for the effect of the sudden column removal, the equivalent energy-based static analysis was effectively applied. The analysis results showed that the structure was the most vulnerable to in the case of the internal column removal, however it satisfied the chord rotation criterion of GSA 2003 due to the contribution of the composite slab which improved the stiffness of structure. In the robustness evaluation, the structural performance showed more than 2.5 times of the requirement according to GSA 2003, and the structural sensitivity analysis indicated the decrease of 33% of the initial structural performance.
분할 원호판 강관 두부 결합부의 구조 성능에 관한 실험적 연구
노삼영 ( Noh Sam-young ),박해인 ( Park Hai In ),박문상 ( Park Moon Sang ) 한국구조물진단유지관리공학회 2005 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.9 No.2
The connection system of steel pile and RC footing is an important structure because the total load of upper construction should be transferred through the joint construction of different two materials-steel and RC-with strongly changed section area. Although many connection systems have been developed, their structural and economical efficiency and workability are often insufficient. Therefore, a new connecting system was developed to improve the above mentioned problems of current systems. The divided arc plate could improve the workability and economical efficiency, structural efficiency could be reached by welding. The main purpose of the research is to evaluate the structural behavior of the new designed connection system through experiments.
노삼영(Noh, Sam-Young),김승훈(Kim, Seung-Hun),이왕희(Lee, Wang-Hee),윤솔(Youn, Sol) 대한건축학회 2014 大韓建築學會論文集 : 構造系 Vol.30 No.1
In spite of the large stiffness of the Cast-In-Place Concrete Pile(CIP) wall, it is used only temporarily, because CIP wall construction shows the difficulty of keeping straightness and unification in the joint between each pile. Recently the Uni-wall method which improves the disadvantage of the CIP temporary wall is being developed for the use of Permanent Basement wall (Permanent Uni-wall System, PUS). The PUS is constructed in combination of piles consisting of circular casing piles and specially, shape casing piles with concave sides. The piles may be designed as reinforced concrete structure, steel-frame structure, steel-framed reinforced concrete structure and their combination In this paper Axial force-bending moment interaction curves are prepared for the three structural types of unit cross section. Applying the analysis results for a selected prototype structures, efficiency of the three structural section types are analyzed, based on the construction cost for varying number of basement stories.
노삼영(Noh, Sam-Young),이상윤(Lee, Sang-Yun) 한국구조물진단유지관리학회 2010 한국구조물진단학회 학술발표회논문집 Vol.2010 No.2
Since the use of seawater for the cooling system in the domestic nuclear power plant influences on ecological system of the coast, developed countries use the cooling system by natural draught cooling towers. Due to the enormous scale and sensible characteristics of the structure against thermal and wind load, the maintenance and the repair of the structural damage, besides structural safety, cause enormous costs. Therefore the durability design of the cooling tower becomes a new issue. In this study a 30 years old natural draught cooling tower with serious damage state was non-linearly analysed and the damage process was evaluated.
공동주택의 중량충격원에 의한 진동전달 및 강성보강에 의한 진동저감효과 분석
노삼영(Sam-Young Noh),윤진호(Jin-Ho Yun) 한국생활환경학회 2007 한국생활환경학회지 Vol.14 No.3
After 1970's many wall-type multi-residential buildings have been constructed to solve the housing problem domestically. However noise and vibration troubles by the floor impact among households in the wall-type multi-residential building became an important issue with the increasing demand of living circumstances. To meet a new measure against this problem induced by the floor impact, vibration characteristics of the wall-type building should be investigated. The purpose of this study is to investigate the ratio of vibration transmission, comparing the experimental results with them of numerical analysis. The experiment was performed in a unit of a 15-stories multi-residential building. The slab of the living room was impacted with a standard bang machine, in which the acceleration response of the slab and the wall was measured. The results of the numerical analysis for a simplified model of a family unit with 100 ㎡ were compared with them of the experiment. The results showed that the vibration energy is mainly transmitted through the slab and the contribution of wall is not noticeable. Also, the effects of stiffening beam under or on the slab and the alteration of wall cross section area were shown by means of the numerical eigenfrequency analysis.
노삼영 ( Noh Sam-young ),권현호 ( Gown Hyeon-ho ),신동춘 ( Sin Dong-chun ),홍찬윤 ( Hong Chan-yun ),유성용 ( Yu Seong-yong ) 한국구조물진단유지관리공학회 2010 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.14 No.1
Sink-hole is a kind of ground settlements caused by collapse of the underground space when the important structure is constructed on the closed mine tunnel. Thus Sink-hole must be reinforced certainly. Therefore, in this study, experimental performance evaluation of Sink-hole-reinforcing slab is done by scaled model. In this time, rock and silt which is selected by soil condition, are used as ground model which scale is same ratio as reinforced slab. This experiment estimate through the stability of reinforced slab and the ground mutual behavior analysis.