• Title/Summary/Keyword: low-rise

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Intonation Types of Sentence Terminal in Korean Dialects (방언의 월 끝 억양의 유형)

  • Lee, Byung-Woon
    • Speech Sciences
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    • v.9 no.2
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    • pp.49-58
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    • 2002
  • This study is to classify intonation types of sentence terminal in accordance with sentence form in Korean dialects. Intonation types of sentence terminal in declarative, interrogative (yes-no and wh-sentence), imperative, suggestive of Gyeongnam dialect are low fall, high fall, high fall, low fall, so are not distinctive by intonation, but distinctive by final ending morphemes. But those of Jungbu dialect are low fall, rise-fall and full rise, high level, low rise-fall. Those of Jeonnam dialect are low level, rise-fall and full rise, high level, high level. So those of Jungbu dialect are similar to Jeonnam dialect.

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The proposal of urban regeneration methods for deteriorated downtown residential area, considering the development condition of urban blocks - A case study of Kwangju City (쇠퇴한 구도심 주거지의 개발여건별 재활성화 방법 제안 - 광주광역시 구도심을 사례로)

  • Yoon, Yong-Suk;Yang, Woo-Hyun;Kim, Lee-Won
    • Proceeding of Spring/Autumn Annual Conference of KHA
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    • 2009.11a
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    • pp.132-137
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    • 2009
  • The purpose of this study was to suggest urban regeneration methods for deteriorated downtown residential area, considering the development condition of urban blocks. Through the research that are based on literature, field survey, urban planning map and local experts consulting, it found out suitable sites for development such as a deteriorated residential zone or a unused site and it was deduced eight development types from analyzing the characters of developable sites. And then it is suggested various housing forms which were applied to eight development types of developable sites. The consequences of this research are summarized as follows. There are various housing forms by eight development types; block housing, low rise-high density court housing, medium low rise-high density housing, urban housing for low-income groups belong to T1-development of urban strategic position; block housing, housing on hilly site, semi-detached house, lodging house, urban housing for low-income groups, elderly housing belong to T2-development for living benefit; block housing, low rise-high density court housing, housing on hilly site, low rise housing, lodging housing, urban housing for low-income groups, elderly housing belong to T3-development of a small-scale rental housing; block housing, low rise-high density court housing, medium low rise-high density housing, terrace-house, housing on hilly site, low rise housing, block-typed detached house, semi-detached house, cluster-typed low rise housing, town house, urban housing for low-income groups belong to T4-residential environment renewal development; terrace-house, housing on hilly site, low rise housing, block housing, semi-detached house belong to T5-development of a small-scale housing; terrace-house, housing on hilly site, low rise housing, cluster-typed low rise housing belong to T6-development to adapt natural environment; block housing, low rise-high density court housing, low rise housing, block-typed detached house, town house belong to T7-development for community; block housing, low rise-high density court housing block housing, medium low rise-high density housing, terrace-house, housing on hilly site, low rise housing, elderly housing belong to T8-development of environment-friendly.

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Wind pressure coefficients on low-rise structures and codification

  • Letchford, Chris;Holmes, J.D.;Hoxey, Roger;Robertson, Adam
    • Wind and Structures
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    • v.8 no.4
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    • pp.283-294
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    • 2005
  • This paper describes the work of the Working Group on wind pressure coefficients on low-rise structures, one of the groups set up by the International Association of Wind Engineering in 1999. General aspects of wind loading on low-rise structures are summarized. The definition, derivation and codification of loading coefficients is described. Comparisons of pressure coefficients on low rise structures are made between a selection of wind loading standards. Recommendations for consistency and for the harmonization of these coefficients are given.

Seismic Performance of Low-rise Piloti RC Buildings with Concentric Core (중심코어를 가지는 저층 철근콘크리트 필로티 건물의 내진성능)

  • Yoon, Tae-Ho
    • Journal of the Korean Society of Industry Convergence
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    • v.25 no.4_2
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    • pp.611-619
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    • 2022
  • In this study, the seismic performance of low - rise piloti buildings with concentric core (shear wall) position is analysed and reviewed based on KDS 41. The prototype is selected among the constructed low - rise piloti buildings with concentric core designed based on KBC 2005 which was used for many low - rise piloti buildings construction. The seismic performance of the building shows plastic behavior in X-direction and elastic behavior in Y-direction. The inter-story drift is lager than that of concentric core case and is under the maximum allowed drift ratio. The displacement ratio of first story is much lager the that of upper stories, and the frame structure in the first story is evaluated as vulnerable to lateral force. Therefore, low - rise piloti buildings with concentric core need the diminishment of lateral displacement and reinforcement of lateral resistance capacity in seismic design and seismic retrofit.

A Study on the Characteristic Micro-Climate in the City using Computerized Fluid Analysis and Actual Measurement (전산유체해석과 실측을 이용한 도심내 미기후 특성에 대한 연구)

  • You, Jang-Youl;Park, Min-Woo
    • Journal of Korean Association for Spatial Structures
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    • v.23 no.1
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    • pp.35-43
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    • 2023
  • Microclimate analysis was conducted through actual measurement according to land use status in urban, and CFD analysis was conducted to analyze and predict the microclimate characteristics of urban, and compared and analyzed with the actual measurement results. It was measured in high-rise areas and parks, and the temperature of the park area was 0.4 to 0.6℃ lower, and the relative humidity was 1.0 to 3.0% higher. The correlation coefficient was obtained by comparing the results of the computational fluid analysis with the results of the computational fluid analysis at the actual location located within the CFD analysis area for validation. The seasonal correlation coefficients are all higher than 0.8, so it is judged that they can be applied to microclimate analysis in urban area. The computational fluid analysis was divided into three areas (low-rise, low and high-rise, and high-rise) centered on the A2 point. On average, the low-rise area was 0.1 to 0.4% higher than the high-rise area. In the low and high-rise area and high-rise area, the pith of buildings are wide, so the airflow is smooth, so it is judged that the temperature is relatively low.

A Study on the Improvement of the Environment-Friendly Low-rise House using Amenity (어메니티를 활용한 친환경 저층집합주거 개선방안에 관한 연구)

  • Jang, Young-Woo;Lee, Jong-Kuk
    • Proceeding of Spring/Autumn Annual Conference of KHA
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    • 2009.04a
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    • pp.124-128
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    • 2009
  • As the problem of destroying natural environment is emerging as a common social issue world widely, recently in the filed of architecture there has been increasing interests in environment-friendly architecture according to the awakening and understanding of environmental pollution. The social problem caused by pursuing affluent urban life is now making the quality of life an issue against the urban policy that has been simply emphasizing quantitative expansion only. Accordingly, development and popularization of such a type as environment-friendly low-rise house is being suggested as an alternative idea, because it can combine secured independent space, which is a merit of independent houses, and characteristic architectural shapes, making possible the development of large scale environment-friendly complexes. Based on the analysis of the examples of Environment-friendly low-rise house in other countries that are utilizing amenity concepts, such as environment, ecology, culture and history, the present research proposed an alternative idea for highly dense high-rise houses, by resolving the problems of low-rise house complex caused by the variable of ecological environment. An effort was made to understand the concept of low-rise house through theoretical investigation, and based on the analysis of domestic and foreign cases, a method for improving the problems was deduced as a conclusion.

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A comparative study on dynamic behavior of high-rise building and low-rise building considering SSI analysis (SSI 해석을 고려한 초고층 및 저층 건물 동적거동 비교 연구)

  • You, Kwang-Ho;Kim, Seung-Jin
    • Journal of Korean Tunnelling and Underground Space Association
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    • v.20 no.6
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    • pp.973-987
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    • 2018
  • Most of the previous seismic analyses have been carried out by separating the ground and structures, and there is a lack of comparative study on the dynamic behavior of high-rise and low-rise buildings. Therefore, in this study, the sensitivity analysis was performed with selected parameters by using a finite element analysis program in order to grasp the dynamic behavior of high-rise and low-rise buildings. As a result, it was turned out that the horizontal displacement, the interstory drift ratio, and the bending stress of a high-rise building were more affected by a long seismic wave than a low-rise buildings. Also, the weak parts of a high-rise and low-rise building were more affected by type of seismic wave than the ground conditions. Therefore, it is inferred that it will be helpful for seismic designs to consider the influence of ground conditions and seismic wave type on buildings.

Low-energy Tall Buildings? Room for Improvement as Demonstrated by New York City Energy Benchmarking Data

  • Leung, Luke;Ray, Stephen D.
    • International Journal of High-Rise Buildings
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    • v.2 no.4
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    • pp.285-291
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    • 2013
  • This paper proposes a framework for understanding the energy consumption differences between tall and low-rise buildings. Energy usage data from 706 office buildings in New York illustrates expected correlations from the framework. Notable correlations include: taller buildings tend to use more energy until a plateau at 30~39 floors; tall buildings in Manhattan use 20% more energy than low-rise buildings in Manhattan, while tall buildings outside Manhattan use 4% more energy than low-rise buildings outside Manhattan. Additional correlations are discussed, among which is the trend that the Energy Star program in New York City assigns higher ratings to tall buildings with higher EUIs than low-rise buildings with the same EUI. Since Energy Star is based on regressions of existing buildings, the Energy Star ratings suggest taller buildings have higher EUIs than shorter buildings, which is confirmed by the New York City energy benchmarking data.

Vibration control of low-rise buildings considering nonlinear behavior of concrete using tuned mass damper

  • Abbas Bigdeli;Md. Motiur Rahman;Dookie Kim
    • Structural Engineering and Mechanics
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    • v.88 no.3
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    • pp.209-220
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    • 2023
  • This study investigates the effectiveness of tuned mass dampers (TMDs) in controlling vibrations in low-rise reinforced concrete buildings. It examines both linear and nonlinear behaviors of concrete structures subjected to strong ground motions from the PEER database. The research follows the ASCE 7-16 provisions to model structural nonlinearity. Additionally, the study explores the effect of varying TMD mass ratios on the performance of these systems in real-world conditions. The findings emphasize the importance of accounting for structural nonlinearity in low-rise buildings, highlighting its significant influence on the controlled response under severe seismic excitations. The study suggests including nonlinear analysis in seismic design practices and recommends customizing TMD designs to optimize vibration control. These recommendations have practical implications for enhancing the safety and effectiveness of seismic design practices for low-rise buildings.

Monitoring of wind effects on an instrumented low-rise building during severe tropical storm

  • Li, Q.S.;Hu, S.Y.
    • Wind and Structures
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    • v.20 no.3
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    • pp.469-488
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    • 2015
  • A full-scale instrumented low-rise building with gable roof was built at a coastal site with a high incidence of tropical cyclones for monitoring of wind effects on the building during windstorms. This paper presents the field measurements of the wind velocity field around and the wind-induced pressures on the low-rise building during the passage of severe tropical storm Soudelor. Near-ground wind characteristics such as wind speed, wind direction, turbulence intensity, gust factor, turbulence integral length scale and wind velocity spectra were investigated. The wind-induced pressures on the roof of the building were analyzed and discussed. The results revealed that the eave and ridge edges on the roof were subjected to the most severe suction pressures under quartering winds. These suction pressures showed obvious non-Gaussian behavior. The measured results were compared with the provisions of ASCE 7-10 to assess the suitability of the code of practice for the wind-resistant design of low-rise buildings under tropical cyclones. The field study aims to provide useful information that can enhance our understanding of the extreme wind effects on low-rise buildings in an effort to reduce tropical cyclone wind damages to residential buildings.