The importance of urban green space creation is increasingly recognized as the most realistic and efficient approach for fine dust mitigation in urban areas. Particularly considering the characteristics of domestic cities, the application of buffer green spaces along roads can maximize the efficiency of fine dust reduction without the need for separate green space creation. Accordingly, this study analyzed the fine dust mitigation effects based on the types of plantings in the central dividers and roadside trees in Jeonju City, Jeollabuk-do. To do this, we controlled various external variables of urban space and considered the planting arrangement types in the central dividers, carrying out the analysis using a CFD simulation. The simulation results confirmed that the central dividers with plantings demonstrated more effective ultrafine dust reduction than those without. Moreover, the arrangement of roadside trees showed a greater ultrafine dust reduction effect when adopting a multilayered structure compared to a single layer. Based on these findings, we concluded that installing both trees and shrubs simultaneously in the central dividers and along roads was effective for ultrafine dust mitigation. On this basis, we quantified the dust reduction effects of plants in urban street environments and proposed planting guidelines for roadside green spaces to improve air quality.
Before the 15th century, the main buildings of the residences of the ruling class in Seoul consisted of Momchae(身梗), Seocheong(西廳), and Naeru(內樓)‧Chimru(寢樓). Based on the equality of the relationship between husband and wife, the couple lived in the main building[Momchae] in the center of the mansion, but based on the individuality of the relationship between husband and wife, each had an area consisting of the same section within the building. Naeru‧Chimru was the two floors bedroom building became a common living space for the minister and wife, upstairs in summer, downstairs in winter. In preparation for large gatherings and important receptions, an open-structured West Hall(西廳) was located on the west side of the mansion. Momchae, Seocheong, and Naeru‧Chimru were the common building types and layouts of the residences of the highest ruling class, including high-ranking officials, until the reign of King Sejong. However, from around the time of King Seongjong, Seocheong and Chimru came to be regarded as privileged and luxurious buildings only allowed for the grand prince's residence. The layout of the bedroom, main building (including Wings), Outer Sarang[外舍廊], and Joyangru[朝陽樓] of Prince Bongrim's mansion built in the first half of the 17th century clearly shows the transitional period when the arrangement of chimru, main building, and western office was disrupted and the layout changed to the Inner main building(Anchae for wife) and Outer main building(Sarangchae for husband).
최근 도심지에 건설되고 있는 대부분의 주상복합건물과 아파트들은 다양한 공간을 구성하기 위해 주로 복합구조형식을 채택하고 있다. 특히, 이러한 구조형식들 중의 하나인 상부벽식-하부골조시스템은 전이층에서 서로 연결되는 전단벽형식과 골조형식을 모두 포함하고 있다. 그러나 이 시스템은 구조적인 안전성 측면에서 볼 때 매우 불합리하며, 전이층에서의 응력분포를 파악하기 매우 어렵다. 따라서 본 연구에서는 연직 및 정적 횡하중이 작용하는 전이보 시스템의 전단벽 배치에 따른 구조적인 거동과 응력분포를 분석하고자 함에 있으며, 또한 해석결과를 바탕으로 전이층부근에서의 하중의 전달경로 및 응력집중현상을 파악하고, 전단벽과 전이보의 효율적인 설계를 위한 방안을 제시하고자 한다.
This study has been researched mainly about the gradual changing patterns of site plan and plan layout of 17 sampling traditional houses in kyungpuk province during the time period of 1877-1945. The objective of this study is to closely examine the characteristics of locality and trend of the times. Survey and Measured drawing, personal interviews with clients has been carried out and the result is as down below; 1.The certain changes have shown that the furnace in sarangchae(outer wing for men) in ㅁ shaped and 『』 shaped houses served only for that purpose and inner gate has been built in sideward of sarangchae. 2.As living standard was upgraded storage space and size of the rooms got bigger. On the other hand, spacial formation was emphasized by its function accordding to house activities and living circulation because the family members in direct line became reality of the time. 3.The modernistic thought of rationalism and convenience are well expressed in the plan layout and house living as a whole.
본 연구는 한국의 전통정원을 식물 선택 및 배식 기법의 측면에서 고찰하여 당시의 식생 현황을 옛 그림이나 문헌을 통해 간접적으로 유추하여 자연 천이 및 인위적인 변형 등을 통해 변화된 오늘날의 모습과 비교․분석하여 전통정원 조성을 위한 가이드라인을 제시하고자 수행하였다. 조선시대 궁궐정원, 별서정원 및 주택정원을 고찰한 결과, 전통 정원의 전통성을 전달할 수 있는 공간 구성과 상징적 및 사상적 의미를 가지는 식물종 선택이 매우 중요하며, 구체적으로 전통정원의 공간 기능, 배식 의미, 식물 종, 경관 요소 등을 도출하여 식재 유형 예시도를 작성하였다. 이를 통하여 한국 전통정원의 현재 모습의 기록 및 국내․외 한국 전통정원 조성을 위한 가이드라인 제공을 기대할 수 있다.
본 연구는 FSM 공법의 PSC 박스 거더교를 최소경비로 자동 설계하는 최적설계 프로그램을 이용하여 다양한 변단면 거더유형을 가진 등경간 및 부등경간 거더교에 대하여 최적설계를 수행하였다. 또한 각 변단면 거더유형에서 산출된 최적의 긴장재 배치에 관하여 연구함으로서 향후 복잡한 구조물에 대하여 더욱 적절한 긴장재의 배치형태에 대한 방향을 제시하고자 하는데 목적이 있다. 사용된 최적설계 프로그램은 축차 무제약 최소화 기법을 이용하였고, 설계과정에서 설계점들이 설계가능 영역밖에 있는 것을 허용할 수 있도록 Kavlie가 제안한 확장 벌칙함수를 도입하였다. 또한 설계점들의 탐사 방법은 Powell's direct search method를 사용하며, 설계시간을 단축시키기 위해 설계점 변화에 따른 단면력 변화를 Gradient를 이용하여 근사화 시키는 방법을 사용하였다.