• Title/Summary/Keyword: City Wall

Search Result 238, Processing Time 0.03 seconds

A Study on Environment-Behavior Interaction in Community Facility - Through behavior setting surveys of Shounandai Bunka Center in Japan - (지역시설에서의 이용행태에 관한 연구 - 일본(日本) 상남태(湘南台)문화센타 행동상황조사를 통하여 -)

  • Lee, Eulgyu;Cho, Yonghoon
    • Journal of the Korean Institute of Rural Architecture
    • /
    • v.2 no.2
    • /
    • pp.103-113
    • /
    • 2000
  • An effective design of a public space that properly functions as a resting place in city can be found through the community facility studies. This study, based on the ecological psychology, discusses the mutual relationships between human behaviors and physical and social environment. It is demonstrated that design elements, such as chairs, tables, stairs, a flower bed, a stair-shaped exterior wall, a pond and others play important roles in providing environment for different human behaviors in public space. These environmental design elements also increase a variety of behavior for users.

  • PDF

Seismic Isolation Systems Incorporating with RC Core Walls and Precast Concrete Perimeter Frames -Shimizu Corporation Tokyo Headquarter-

  • Shimazaki, Dai;Nakagawa, Kentaro
    • International Journal of High-Rise Buildings
    • /
    • v.4 no.3
    • /
    • pp.181-189
    • /
    • 2015
  • Shimizu Corporation Tokyo Headquarters, one of the city's leading office buildings, features many pioneering technologies that contribute to a sustainable society through environmental stewardship and a sophisticated disaster management facility. In terms of structural engineering, a seismic isolation system incorporating reinforced concrete core walls and precast concrete perimeter frames create a robust structure in the event of a large earthquake. In addition to the seismic resistance of the structure, several pioneering construction methods and materials are adopted. This office building can serve as a basis for new design and construction approaches and methodologies to ensure safe and economical structures.

A Study on the maintenance situation of the deteriorted high-rise apartments (노후 고츨아파트의 유지관리 및 개선실태 조사)

  • 주서령;이미정
    • Journal of the Korean housing association
    • /
    • v.12 no.3
    • /
    • pp.75-83
    • /
    • 2001
  • The deteriorted high-rise apartments make a social problem in now days. As a result, and new alternative plan for deteriorted high-rise apartments such as the remodeling concept must be considered. This study aims to develop the remodeling items which is the guide lines when remodeling of the apartment will be conducted. Thorough the case studies of maintenance and repair status of the deteriorted apartments in seoul, reasonable guidelines for selection of remodeling items were developed. Physical maintenance items includes those that need major repair activity like wall painting, water proof roof, change/repairs/implement of heating system, boiler, city gas pipelines, cold and hot water pipes, elevators, cleaning of water tanks. The period of repair is shorter than the durable year of law or codes. As a result of the study, basic maintenance items and actual repair period were proposed. This result will be the basic guidelines for remodeling items.

  • PDF

Hydrogeological Survey and Satellite Remote Sensing in the Dunhuang Area

  • Piao, Chunze;Tanimoto, Chikaosa;Koizumi, Keigo;Li, Zuixiong;Wang, Xudong;Guo, Qinglin
    • Proceedings of the KSRS Conference
    • /
    • 2003.11a
    • /
    • pp.444-446
    • /
    • 2003
  • Mogao Grottos are located at the eastern foot of the Mingsha Mountain, 25km southeast of Dunhuang City. The caves were excavated into the cliff on the west bank of the Daquan River. The wall paintings in the caves are subject to the severe deterioration generated by recrystallization of salt. It relates with the movement of water/moisture in rock formation. Through the satellite image analysis and geological survey it has been clarified that the movement of ground water is governed by the fault system. The geographical nature is specified by the aggressive tectonic movement from the south.

  • PDF

Histopathological effects of the nematode Amidostomum acutum on the small intestines of two aquatic birds: Fulica atra and Gallinula chloropus

  • Altaif, Khalil I.;Mhaisen, Furhan T.;Mizhir, Aliaa H.
    • Korean Journal of Veterinary Research
    • /
    • v.61 no.3
    • /
    • pp.18.1-18.4
    • /
    • 2021
  • The small intestines of two rallid aquatic birds (Fulica atra Linnaeus, 1758 and Gallinula chloropus (Linnaeus, 1758) from Bahr Al-Najaf depression, southwest of Al-Najaf city, mid-Iraq), were infected with the nematode Amidostomum acutum Seurat, 1918 with a prevalence of 25% and 50%, respectively, and a mean intensity of 24.5 and 30, respectively. The infected birds showed several gross pathological and microscopic lesions in their small intestines due to the infection with this nematode. The gross lesions included hypertrophy in the anterior part of the duodenum and small rough nodules on the small intestine wall. Microscopic lesions included necrosis and shortening of villi with their fullness with inflammatory cells, degeneration of villi, and an increased number of acini at the base of the intestinal villi.

A Study on Bang Walls in the Capital of Silla - With a focus on the Hwangnyongsa Temple and its surroundings - (신라왕경 방장(坊牆)에 관한 연구 - 황룡사 및 그 주변을 중심으로 -)

  • Hyun, Seung-Wook
    • Journal of architectural history
    • /
    • v.30 no.1
    • /
    • pp.7-17
    • /
    • 2021
  • Bang walls surround the four sides of Band in ancient capital cities of East Asia where the Bang system was in operation. There are ongoing research efforts for the structure of a capital city and Bang system around the capital of Silla, but there is a huge shortage of research on Bang walls. This study thus set out to examine Bang walls in the capital of Silla around the Hwangnyongsa Temple and its surroundings. The findings show that the Bang walls in the capital of Silla were built with a mix of earth and stone and with tiled roofs on top. The sizes of Bang walls were distinguished from the walls of individual structure groups inside Bang and closely related to the Bang size and the width of adjacent roads.

Structural health monitoring and resilient assessment by novel intelligent models

  • C.C. Hung;T. Nguyen;C.Y. Hsieh
    • Structural Monitoring and Maintenance
    • /
    • v.10 no.4
    • /
    • pp.339-360
    • /
    • 2023
  • In this paper, to assess the performance of a multi-span simply supported RC bridge, the dynamic characteristics of the bridge were measured and determined by structural health monitoring and resilient assessment via operational modal analysis as well as FE modeling. Supporting finite element (FE) models were created and analyzed according to the design drawings. This study used 2D plane monitoring of locations of hole in the infill wall and used 3D health monitoring and resilient assessment. From the results of 3Dsymmetric frame, if the frame is unsymmetrical, the used model can lead to the reduction in the internal forces. The recommendations from this study is from some discrepancies observed between 2D and 3D models, if possible 3D model should be used in analyzing the real frames.

A Study on the Evaluation and Improvement of Permeability in Radial and Tangential Section of Domestic Softwoods (국산 침엽수의 방사, 접선단면의 투습성 평가와 개선방안에 관한 연구)

  • KIM, Joon Ho;YANG, Seung Min;LEE, Hyun Jae;PARK, Ki Hyung;KANG, Seog Goo
    • Journal of the Korean Wood Science and Technology
    • /
    • v.48 no.6
    • /
    • pp.832-846
    • /
    • 2020
  • The purpose of this research was to evaluate the vapor permeability of nine different species of domestic softwood and the vapor permeability evaluation through the production of small wall structures for the developing applications, utilizing the vapor permeability of wood. In addition, the permeability evaluation was attempted by means of the production of a small wall structure injected with a waste material, bottom ash, as a moisture absorbent for improving the permeability. Consequently, the results of the vapor permeability evaluation by means of Sd value are as follows: (1) It was observed that Abies holiphylla, Picea jezoensis, Ginkgo biloba, Pinus koraiensis and Pinus rigida are permeable to moisture among 9 species of domestic softwood in Korea. (2) By means of this, semi-permeability efficiency was evaluated when producing a small wall structure. (3) Besides, improved effects of permeability were evaluated when producing a small wall structure inserted with bottom ash. As a result, it was confirmed that the Sd value of Pinus koraiensis turned out to be 1.63, which is superior to other 8 tree species.

A Study on Tile from the Early Period of the Three Kingdoms Period Excavated in Bonghwang-dong (김해 봉황동 유적 일대 출토 삼국시대 초기 기와 검토)

  • YUN Sunkyung;KIM Jiyeon
    • Korean Journal of Heritage: History & Science
    • /
    • v.56 no.4
    • /
    • pp.40-52
    • /
    • 2023
  • The basic purpose of building material called tiles is waterproofing and damp proofing, and they were restricted to use on important buildings to symbolize authority. This is especially true during the Three Kingdoms period, although unearthed examples are rare. Most of these tiles are found in ruins in the Silla and Baekje regions. Tiles were excavated from the Buwon-dong ruins that show the oldest manufacturing technique in the Gaya region to date, and tiles from the early Three Kingdoms period were recently excavated from the Gimhae Bonghwang-dong ruins, which is presumed to be the site of the royal palace of Geumgwan Gaya. These are important materials that show the appearance of tiles from the early days of Gimhae, the ancient capital of Geumgwan Gaya. The tiles excavated from the Bonghwang-dong ruins are reddish-yellow because a small amount of sand was mixed in the tile material and baked at a low temperature. The tiles are thin, no traces of fabric were identified, but traces of clay bands were identified. Tapping tool marks and traces of an anvil used in pottery production are clearly observed on the inside and outside, indicating that the tiles were made in the same way as earthenware manufacturing methods. If this is connected to the genealogy of the potters who made Gaya earthenware, it is estimated that tiles and earthenware were produced together as in the Songrim-ri ruins in Bulo-dong, Incheon, Songgok-dong ruins in Gyeongju, and Mulcheon-ri ruins. To date, tiles excavated from the Gimhae area have been identified only in places believed to be the Geumgwan Gaya City Wall (Royal Palace) in the Gimhae Basin. Considering what has been recorded so far and the geographical scenery, the Bonghwang-dong remains are the only city wall candidate site, and this is clearly revealed through the existence of the excavated tiles, which proves this. Considering that a small number of tiles were excavated during this time, it is estimated that the role of tiles as a luxury product with a symbolic meaning was greater than that of roofing materials, and there were strict restrictions and controls on its use.

The Characteristics of Traffic Noise and Its Effects on Inhabitants' Life at an Apartment Area in Taejon City (대전 신도시 일부 아파트지역 교통소음의 특성과 주민생활에 미치는 영향)

  • Park, Chan-Ho;Chang, Seong-Sil
    • Journal of Environmental Health Sciences
    • /
    • v.25 no.3
    • /
    • pp.94-102
    • /
    • 1999
  • To estimate the effects of environmental noise on inhabitants' life in an apartment area at Taejon, noise levels and traffic volume of major roads were measured. 203 housewives were surveyed by questionaires including general factors, noise related factors and three items of life effects: subjective evaluations on the general environment, annoyance, and life disturbance due to environmental noise. At the boundary adjacent to the road with more traffic volume, noise level was higher; according to the time, the amount of noise level was in the morning, in the evening, at noon, and at night in order. Most of boundary noise levels were higher than those of recommended standard environmental noise levels in a residential area. The boundary noise level showed a very significant linear relationship with traffic volume of near roads. Noise level difference in the apartments adjacent to three roads was ranged 2.4~6.7dB between in windows open and close state. The apartments adjacent to 9 lane or 6 lane-road, which were protected by noise prevention wall and 20m or more distance from the roads, showed higher noise level at middle floors and high floors than those of low floors; but the buildings adjacent to 4 lane-road, with no protection, showed higher noise level at low and middle floors than those of high floors. Among 203 housewives, 120(59.1%) participated in this study, and 86(73.2%) of them answered that the most serious environmental noise was traffic noise from near roads. Comparing traffic noise levels with those of before-migration, 67.0% participants found the environmental noise became louder. Fifty eight(49.5%) of the participants wanted noise protection wall and 15(25.9%) of them were willing to charge the fee. Less perception on the present noise comparing to those before-migration, less traffic volume, and lower noise levels in the apartments were related to higher scores of self-evaluation on the environment. Higher susceptibility on the present noise, areas with more traffic volume, higher boundary noise levels, and higher noise levels showed higher scores of annoyance on environmental noise and life disturbance. Considering above all things, it was suggested that traffic noise in this area was the major problem of environmental noise, and its' effect was so serious that inhabitants needed some preventive measures for better life quality.

  • PDF