http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
평면 비정형 구조물에 적용된 중간층 면진 시스템의 지진 응답 제어 성능 분석
박효선,김현수,강주원,Park, Hyo-Sun,Kim, Hyun-Su,Kang, Joo-Won 한국공간구조학회 2019 한국공간구조학회지 Vol.19 No.2
In this study, the seismic response is investigated by using a relatively low-rise building under torsion-prone conditions and three seismic loads with change of the location of the seismic isolation system. LRB (Lead Rubber Bearing) was used for the seismic isolator applied to the analytical model. Fixed model without seismic isolation system was set as a basic model and LB models using seismic isolation system were compared. The maximum story drift ratio and the maximum torsional angle were evaluated by using the position of the seismic layer as a variable. It was confirmed that the isolation device is effective for torsional control of planar irregular structures. Also, it was shown that the applicability of the mid-story seismic isolation system. Numerical analyses results presented that an isolator installed in the lower layer provided good control performance for the maximum story drift ratio and the maximum torsional angle simultaneously.
박효선,서지현,Park, Hyo Seon,Seo, Ji Hyun 한국강구조학회 2005 韓國鋼構造學會 論文集 Vol.17 No.3
고층 건물 변위설계는 고층건물 설계의 핵심 기술 중의 하나이며, 재분배 기법은 실용적인 고층건물 변위설계법으로 인식되고 있다. 재분배 기법은 구조 물량을 재분배함으로서 전체 구조물량의 변화없이 제어하고자 하는 변위를 최소화시키는 방법으로서, 재분배기법 적용에 의해서 최종 얻어지는 물량은 초기 물량의 영향을 받게 된다. 초기 물량이 과다한 모델의 경우, 재분배 기법을 적용하면 허용 변위는 충분히 만족하지만 물량 측면에서는 그 만큼의 절감 여지를 내포하고 있다고 볼 수 있다. 그러므로 중량 조절계수를 구조정식화에 포함시켜서 변위설계시 초기 설계안의 물량에 영향을 받지 않는 고층건물 변위설계 기법을 개발하였다. 제안된 변위설계법을 프레임-전단벽 구조물의 변위설계에 적용하여 그 결과를 분석한 결과, 제안된 방법은 초기 물량의 영향을 받지 않으며 고층건물 변위설계가 가능하였다. Drift design is one of the core techniques in the structural design of high-rise buildings and resizing technique is regarded as a practical drift design method for high-rise buildings. In the resizing technique, the structural weight is re-distributed to minimize the target displacement without a change in structural weights. However, the structural weight determined from resizing algorithm is bound to the structural weight based on the preliminary design. Therefore, in this paper, a drift design method that can control the weight of the structure without causing drift control performance to deteriorate is proposed by incorporating the weight control factor in the formulation of resizing algorithm. The proposed drift design method is applied to the drift design of two frame-shear wall systems. The proposed drift design method, in this study, makes it possible to control both the drift and weight of a high-rise building.
돼지 생식기호흡기증후군 바이러스의 Nucleocapsid 단백질 발현 및 진단적 응용
박효선,한태욱,김현수,최강석,이은정,강신영,Park, Hyo-Sun,Hahn, Tae-Uook,Kim, Hyun-Soo,Choi, Kang-Seuk,Lee, Eun-Jeong,Kang, Shien-Young 대한수의학회 2003 大韓獸醫學會誌 Vol.43 No.1
Porcine reproductive and respiratory syndrome (PRRS) is characterized by reproductive failures in sows and respiratory problems in piglets. The nucleocapsid(N) protein, encoded by the open reading frame 7 (ORF7) gene, is known to be the most abundant and antigenic protein in PRRS virus. Therefore, it was suggested that the N protein could be a suitable candidate for the detection of PRRS virus-specific antibodies and diagnosis of PRRS. In the present study, the ORF7 gene encoding the N protein was cloned and expressed as a fusion protein with the glutathione S-transferase (GST) in Escherichia coli. The resulting GST-N recombinant protein was used as an antigen for an indirect sandwich enzyme-linked immunosorbent assay (i-ELISA). Expressed GST-N recombinant protein was migrated at 41 kDa and reacted with ORF7-specific monoclonal antibody by Western blotting. In order to increase the specificity of the ELISA for the detection of PRRS virus-specific antibodes, an i-ELISA was developed using an anti-GST antibody as a capture antibody. The sensitivity and specificity of developed i-ELISA were 92% and 96%, respectively. Based on these results, it was suggested that the i-ELISA is a simple and rapid test for screening a large number of swine sera for the anti-PRRS virus antibodies.
LGFOS를 이용한 보-기둥 부재의 부재력 계측 기법 개발
박효선,백재민,이홍민,Park, Hyo-Seon,Baek, Jae-Min,Lee, Hong-Min 한국방재학회 2006 한국방재학회논문집 Vol.6 No.3
기존 대부분의 구조물 건전도 모니터링 시스템에서는 제한적인 위치와 범위에서의 변형률 계측이 가능한 국부 변형률 센서를 이용하여 구조물 또는 구조 부재의 부재력을 계측하고 이에 기반하여 구조 안전성을 평가하고 있다. 그러나 실 구조물의 부재력 계측을 통한 안전성 평가는 하중의 크기 및 분포에 대한 불확실성 등의 다양한 이유로 부재 내 최대응력 작용점을 정확하게 파악하기 어렵다. 이러한 경우 구조물의 사이즈에 비하여 센서의 길이가 미소한 국부 변형률 센서를 이용한 안전성 평가의 적절성은 센서의 위치 및 개수에 좌우되는 한계를 가지게 된다. 이러한 한계를 극복하기 위하여 센서의 수를 증가시키면 처리해야하는 데이터의 양과 비용이 증가하게 되므로 현실적인 적용성에 문제점을 가지게 된다. 그러므로 본 연구에서는 이러한 한계와 문제점을 극복할 수 있는 대안으로 장대광변형센서에 의한 평균변형률을 이용한 보-기둥의 부재력 계측 기법을 제시하였다. In structural health monitoring, the safety of structural members are assessed by the level of stress measured by various strain sensors based on different sensing mechanisms. Since most existing strain sensors used for health monitoring system can cover a relatively small range of structural members, it is very difficult to measure the maximum value of the member subjected to varying amount and types of loads with those point sensors. The reliability of assessed safety of a member may be improved by increasing the number of sensors. It may not be also realistic to increase the number of sensors to overcome these drawbacks. In this paper, a stress measuring method for beam-column members is developed by estimating the maximum stress based on the average strains obtained from long gauge sensor. The average strain from long gage fiber optic sensor is transformed into the maximum strain by multiplication of the modification factor derived in this research.
박효선(Hyo Seon Park),유은종(Eun Jong Yu),주영규(Young Kyu Ju),송화철(Hwa Cheol Song),안재현(Jae Hyen Ahn),박칠림(Chil Lim Park) 한국강구조학회 1996 韓國鋼構造學會誌 Vol.8 No.2
As the building increases in height, the lateral deformation of the building due to wind or seismic loads becomes of primary concern. The excessive lateral deformation or story drift causes failure of both structural elements and nonstructural elements. The calculated deformation and drifts at the final design stage must be check not to exceed the specified limits proportional to the building height. Thus, the amount of material required for a tall building is determined by the structural stiffness criteria rather than member strength criteria. While research activity has been reported in the literature on development of structural optimization algorithms based on sensitivity analysis, no practical algorithm has been reported on their application to structural design of tall buildings. Therefore, the selection of determining elements for the drift control of a tall building at the final design stage heavily depends on structural designer`s heuristics based on his design experience. In this paper, the unit load method for calculating displacement of structures are explored to identify the controling elements for lateral deformation and drift in a tall building. Based on the unit load method, the lateral displacements of the models are reduced by 49.1% and 39.4% without changing the total weights of the structures.