본 연구에서는 노후화된 공동주택 수직 증축 리모델링 시 면진시스템의 적용성을 검토 및 면진시스템 적용을 위한 기초자료를 제공할 목적으로 동일한 구조로 수직 증축 시 수직 층수와 면진주기에 따른 최적 면진주기를 산정하였다. 해석결과, 3개층 수직 증축 시에는 면진주기를 비면진 건물 주기의 2배 이상, 2개층 수직 증축 시에는 비면진 건물 주기의 3배 이상을 확보하여야만 충분한 면진효과를 나타내는 것을 알 수 있었다. 또한, 1개층 수직 증축 시에는 비면진 건물 주기의 4배 이상을 확보하여야만 면진효과를 나타내었다. 위의 결과를 활용하여 3개층 수직증축 리모델링 대상 공동주택에 면진시스템을 적용하여 그 효과를 검증하였다. 최상층 최대응답가속도가 비면진 건물의 최대응답가속도 보다 X방향의 경우에는 약 70%로, Y방향의 경우에는 약 65%의 감소를 나타내었다. 또한, 밑면 전단력의 경우, 비면진 건물과 비교하여 X방향 및 Y방향 모두 약 30% 감소하는 것으로 나타났다.

Voided Slab is a very efficient system that can reduce weight and its use has increased. In this paper, Shear performance of voided slab 3 type(rc slab, ball slab, ball slab with water) with improved damping performance was evaluated. As a result of the test, the shear performance was not much different from the existing RC slab.

In this study, the effect on seismic performance of Binding Column Method(BCM) system was empirically evaluated. Four column models that were confined by different forces and one rare column model as a control were manufactured for cyclic loading test. As a result, in the column retrofitted with BCM, the ultimate displacement and load were increased about 2.5 and 2.0 times. Also, the energy-dissipating capacity of the retrofitted model was improved, compared to a rare column model.

Present study investigates whether the syntactic constraints of English reflexives and pronouns originally proposed in Standard Binding Theory (SBT; Chomsky 1980, 1981, 1986) are well-reflected in written corpus data in British English by using the ICE-GB corpus. Four linguistic factors including structural relations between the reflexives/pronouns and their antecedents were used to analyze 1,000 sentences (400 reflexives and 600 pronouns) extracted from the ICE-GB corpus. The results demonstrated the following: i) The linguistic factors related to binding conditions showed structural differences between reflexives and pronouns in English; ii) English reflexives showed more cases of discourse binding (i.e., binding outside the sentential boundary) than the original expectation of SBT; iii) With the domain of sentential binding, structural constraints such as c-commanding and binding domain (Governing Category: SSC and TSC) were nearly violated with reflexives.

This study is the result of the survey on perception and anxiety of high - rise buildings in the general public. As a result of the survey, there was insufficient change in awareness before the construction of high - rise buildings such as landmarks was insufficient (before 2015). However, half of the citizens who felt uneasy that high-rise buildings were likely to collapse due to external influences were close. The anxiety was mainly due to the information of the press or the Internet. It is thought that the cause of anxiety comes from touching negative opinions about the high-rise buildings.

The transition piece of the offshore wind power support structure transmits the load of the tower stably to the support structure on the lower side. The transition piece of the offshore wind power support structure should solve the stress concentration problem in design. In this paper, in order to solve the stress concentration problem occurring at the transition piece of the offshore wind power support structure, the location and the mitigation of the stress concentration have been studied.

In this study, Integrity evaluation of offshore wind turbine substructure was carried out. The strain values obtained by strain gauges circularly installed on upper part of the substructure was converted into vertical and moment load. Considering directions of the moment load through FEM, the most conservative P-M interaction diagram of the model was graphed. Obtained load values were evaluated by utilizing P-M interaction diagram.

Transition piece of offshore wind turbine tower is one of the main parts which takes the direct load and pass on to the lower support structure. In this study, a new design method for the transition piece has been developed. The trasition piece was designed based on the the load flow which was analyzed by approximation and was evaluated by FEM.

In this paper, we research about integrated jacket support structure. The connection of the offshore wind support structure was designed based on the DNV-RP-C201 standard and the design of the appropriate type was derived through numerical calculation and finite element analysis of the stress paths of various connecting part type.

Recently, wind turbine industry have received more attention than before. Many countries including South Korea focus on the offshore wind turbine because of its geographical advantage. However, domestic technique level is much lower than that of advanced countries such as Europe. In this study, analysis on development trend of offshore wind turbine and design standard in Europe is carried out to develop the original design standard.

To calculate back the soil pressure acting on culverts, a technique for estimating the actual soil pressure has been established. The comparison between the design soil pressure and the real soil pressure is included.

Elasto-plastic buckling strength is evaluated based on the procedure given by DNV-RP-C208. To calculate the safety margin of an irregular-shaped steel plates, usage factor in DNV-RP-C201 is modified then used.

In this research, we carried out design and analysis with joint of concrete supporting structure for offshore wind energy. We developed load transfer mechanism about applied load induced from steel tower to concrete foundation. Also, a commercially available finite element program, ABAQUS 6.10, is used to analyze behavior of structure.

In this research, we used half model instead of full model in order to consider convergence and analysis running time. We carried out nonlinear analysis on the joints between steel tower to concrete supporting structure of the 5MW offshore wind turbine applying only half of the load on the joint.

In this research, We carried out compressive, chloride ion penetration and scaling, freezing-thawing test. These test will evaluate the durability of Waste Glass Powder(WG) and Sludge(WGS) concrete. In result, the compressive strength of containing WG, WGS increased rather than OPC in age 90 days. Also, resistance of chloride ion penetration and scaling, freezing-thawing confirmed excellent rather than OPC.

최근 국지성 도시홍수탐지 및 예측의 실패는 기존 대형 S밴드 레이더 관측망의 저층관측 한계를 시사한다. 기존 관측망의 한계를 극복하고자 돌발홍수의 조기탐지 및 분석을 위한 새로운 첨단관측기법인 X밴드 이중편파레이더 관측망(X-Net)의 필요성이 대두되었다. 본 연구에서는 X-Net 실증 테스트베드를 구축하고자 수도권 지역에서 X밴드 이중편파 레이더 설치를 위한 후보지를 조사하고 각 후보지의 적합성 판단을 위해 현장조사, 전파환경조사를 수행하여 최적 관측망을 검토하였다. 최적의 관측망을 선정하기 위해 레이더 빔시뮬레이션을 통하여 각 후보지의 빔차폐율을 조사하고 설치후보지에 대한 현장조사를 통하여 기존시설(전력, 도로, 통신망 등)의 가용성을 판단하였다. 이와 함께 전파환경조사를 실행하여 X밴드 대역의 주파수 할당 가능성을 평가하고, 각 후보지별 간섭이 없는 주파수대역을 조사하였다.

This paper examines behaviors of floating quantifiers in English and Korean, and provides analyses for them. These two languages have ordinary quantifiers and numeral quantifiers. Their syntactic behaviors are a little different in two languages, and those differences also make differences in their meaning. When they do not float, they can have both cardinal and presuppositional reading. When they float, however, they have only cardinal reading. For their analyses, this paper adopts Heim`s tripartite structure and Diesing`s Mapping Hypothesis. In those analyses, when QPs are mapped into restrictive clause, they have presuppositional reading. But, when they are mapped into nuclear scope, they have cardinal reading. In sum, this paper provides some theoretical accounts for ordinary and numeral quantifiers of English and Korean.

역병균 (Phytophthora infestans)의 균사 신장 및 난포자 형성에 미치는 생리 화학적 영향을 알아보고자 국내에서 분리된 A2형인 KM10, U6, MHB6, CDB6, JD1과 일본에서 분양 받은 A1형인 F8l7, DNC303, A2 형인 IB908, DN107 균주를 이용하여 공시 배지별 및 V-8A 배지에 cholesterol, β-sitosterol및 lecithin을 첨가했을 때의 영향을 조사하고, 식물체상에서의 난포자 형성여부를 조사한 결과, 다음과 같은 결과를 얻을 수 있었다. 1. 균사 신장은 V-8A, RMA에서 양호하였고, 난포자 형성은 V-8A에서 가장 많았다. V-8A에 cholesterol, β-sitosterol 및 lecithin을 첨가하였을 때 접종 10일 후 균사 신장은 무처리 대비 각각 16.6, 8.3, 5.2% 더 신장하였으며, 난포자 형성수는 각각 76.0, 58.0, 34.6% 크게 증가하였다. 2. A1형과 A2형이 동시에 존재할 경우 식물체상에서 난포자를 형성하는지 알아보고자 식물체 조직편에 A1, A2형을 대치 배양하여 난포자 형성을 유도한 결과, 난포자의 형성률 및 수는 적었으나, 식물체 상에서도 난포자 형성이 가능한 것을 확인 할 수 있었는데, 금후 이에 대한 세심한 주의가 필요할 것으로 생각된다.

생강 근경썩음병 길항균 Bacillus polymyxa 'HB26-5' 균주를 이용한 생물적 방제 가능성을 알아보기 위한 배양적 특성 및 제형화, 근권정착률을 조사한 결과 배양적온은 25℃였고, 배지의 산도는 7.0에서 생육이 좋았으나 시간이 지남에 따라 초기에는 pH6.I~6.5의 약산성으로 되었다가 7일 후에는 pH7.8~8.2의 약알칼리성으로 변하였다. 길항균의 토양정착을 돕기 위해 첨가된 유기물중 쌀겨와 피트 또는 쌀겨와 카올린을 혼합한 제제가 토양처리 후 7주까지 길항균의 밀도 변화가 가장 작았다. 그러나 실제 노지포장에 처리하였을 경우 3주 후부터 밀도가 떨어지기 시작하였다. 제형의 경도,크기 등 물리적 특성과 길항균의 밀도유지 등을 고려할 때 알긴산 나트륨 2%, kaolin 15%, 쌀겨 3%를 혼합한 제형이 가장 우수하였다.