• Title/Summary/Keyword: building

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Knowledge and Perception Level on Building Equipment Required of CMrs at the Project Design Stage

  • Jang, Young-Jun;Kim, Jin-Dong;Kim, Gwang-Hee
    • Journal of the Korea Institute of Building Construction
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    • v.12 no.6
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    • pp.674-681
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    • 2012
  • With the rise in the functions required in modern building structures, the role of the building equipment that maintains the functions of a building has been emphasized and increased. Effective management in this area is only possible when the construction manager (CMr) is qualified and has the knowledge of building equipment that is needed. Therefore, in this study, a questionnaire survey was carried out on equipment engineers and CMrs, in order to determine the level of building equipment knowledge required, and to identify the perception level of CMrs about the building equipment in the construction project at the project design stage. The results of this study revealed that the CMrs surveyed had a lower level of knowledge on the building equipment than the level that was desired by the equipment engineers. This indicates that CMrs currently have a weak capacity for the management of building equipment. It is thus necessary for CMrs to undergo systematic training in order learn more about building equipment and thus be able to manage construction projects more efficiently.

The development and application of environmental impact assessment program for apartment building element based on building materials LCI DB (건축재료 LCI DB 기반의 공동주택 부위별 환경영향 평가 프로그램 개발 및 적용에 관한 연구)

  • Kim, Rak Hyun;Tae, Sung Ho;Kim, Ji Hoon;Lee, Jong Gun
    • KIEAE Journal
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    • v.16 no.6
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    • pp.151-157
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    • 2016
  • Purpose: The purpose of this study is to develop and apply an environmental impact assessment program for apartment building elements, based on the building materials of the LCI DB, which can link the LCA results of building materials and buildings. Method: For this purpose, a framework for building elements was established, and several building material combinations were developed. In addition, the LCA method for quantifying environmental load emissions from the building materials of each site was applied to establish an environmental impact database of the building materials of the LCI DB. Result: An environmental impact assessment program, based on a Microsoft Excel worksheet, was developed for apartment building elements. This program can link the environmental impact assessment of building materials and building units. To validate the program evaluation results that were obtained in this study, a comparative analysis was carried out using the results of existing evaluation methods. The error rate was estimated to be 5% for environmental impact assessment using existing evaluation methods.

Field monitoring of wind effects on a super-tall building during typhoons

  • Zhi, Lunhai;Li, Q.S.;Wu, J.R.;Li, Z.N.
    • Wind and Structures
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    • v.14 no.3
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    • pp.253-283
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    • 2011
  • This paper presents the field measurement results of wind effects on a super-tall building (CITIC Plaza, 391 m high) located in Guangzhou. The field data such as wind speed, wind direction and acceleration responses were simultaneously and continuously recorded from the tall building by a wind and vibration monitoring system during two typhoons. The typhoon-generated wind characteristics including turbulence intensity, gust factor, peak factor, turbulence integral length scale and power spectral density of fluctuating wind speed were presented and discussed. The dynamic characteristics of the tall building were determined based on the field measurements and compared with those calculated from a 3D finite element model of the building. The measured natural frequencies of the two fundamental sway modes of the building were found to be larger than those calculated. The damping ratios of the building were evaluated by the random decrement technique, which demonstrated amplitude-dependent characteristics. The field measured acceleration responses were compared with wind tunnel test results, which were found to be consistent with the model test data. Finally, the serviceability performance of the super-tall building was assessed based on the field measurement results.

A Study on Design Tendencies in Office Buildings of Public Institutions after Reinforcement of the Building Energy Performance Criteria in Korea (건물에너지성능기준 강화 이후 국내공공기관 업무용 건축물의 디자인경향)

  • Lee, Ah-Young
    • KIEAE Journal
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    • v.11 no.6
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    • pp.139-149
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    • 2011
  • This study focuses on design tendencies in office buildings of public institutions after tightening up Korea's building energy performance criteria. Important office design criteria and recommendations pay attention to the issues such as building orientation, greening buildings, building form, space and envelop by intensifying building energy performance related laws, government guidelines and evaluation systems. The design tendencies explored in this research are as follows. Office buildings mainly face south and have various types of indoor and roof green spaces not for ecological reasons but for the rest. Building depth becomes thinner and atria are inserted into office buildings to improve daylighting and natural ventilation. Building cores are located on north or west and east sides acting as buffer spaces to reduce heat loss and to block solar radiation. Office building envelop design includes various creative ideas to control or utilize solar energy as like three dimensional or double structured skin and window size variation to cope with the intensity of solar radiation. Further, solar energy generation systems are integrated with building component such as roofs, sun screens and windows. This study demonstrates that government's reinforcement of the building energy performance criteria drives the change in design methods and approach.

A Study of the Daylighting Performance in Obstructed Office Building in Urban Area (오피스 건물에서 인접건물이 자연채광 성능에 미치는 영향)

  • Park, Woong-Kyu;Ki, Hyun-Joo;Jeong, Chan-Woul;Song, Doo-Sam
    • Journal of the Korean Solar Energy Society
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    • v.34 no.5
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    • pp.101-108
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    • 2014
  • The performance of the daylighting in buildings depends on building site and shape. As an energy saving design strategy, daylighting is a key issue in green building design. In this paper, the influence of the adjacent or obstructed building on daylighting performance of the office building in urban area was analyzed. A typical office building about 20 storeys with obstructed buildings has been modeled and simulated using Radiance. The parametric simulations have been performed to analyze the influence of the daylighting performance (illuminance, luminance) of the analyzed office. The results show that the possibility of the glare was decreased when the obstructed building is located in south, also the illuminance level was significantly decreased. When the obstructed building is located in north, the changes of the illuminance level and luminance possibility were somewhat small compared to the unobstructed condition. The daylighting performance of the analyzed building was most affected by the obstructed building in winter season.

Building Integrated Vegetation Systems into the New Sainsbury's Building Based on BIM

  • Lee, Dong-Kyu
    • Journal of KIBIM
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    • v.4 no.2
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    • pp.25-32
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    • 2014
  • Today, there is a growing need of environment-friendly buildings, so-called 'green', facilities, and energy saving buildings to decrease environmental pollutants released into cities by construction activities. Green-Building Information Modeling (Green-BIM) is a purpose-built solution which supports to forecast energy consumption of 3-D model of a building by augmenting its primary 3-D measurements (width, height and depth) with many more dimensions (e.g. time, costs, social impacts and environmental consequences) throughout a series of sequential phases in the lifecycle of a building. The current study was carried out in order to integrate vegetation systems (particularly green roof and green wall systems) and investigate thermal performance of the new Sainsbury's building which will be built on Melton road, Leicester, United Kingdom. Within this scope, a 3-D building model of the news Sainsbury's building was first developed in $Autodesk^{(R)}$ $Revit^{(R)}$ and this model was then simulated in $Autodesk^{(R)}$ $Ecotect^{(R)}$once weather data of the construction site was obtained from $Autodesk^{(R)}$ Green Building $Studio^{(R)}$. This study primarily analyzed data from (1) solar radiation, (2) heat gains and losses, and (3) heating and cooling loads simulation to evaluate thermal performance of the building integrated with vegetation system or conventionally available envelops. The results showed that building integrated vegetation system can potentially reduce internal solar gains on the building rooftops by creating a 'bioshade'. Heat gains and losses through roofs and walls were markedly diminished by offering greater insulation on the building. Annual energy loads for heating and cooling were significantly reduced by vegetation more significantly through the green roof system in comparison to green wall system.

Greenhouse Gas Emissions from Building Sector based on National Building Energy Database (국가 건물에너지 통합DB 기반 건물부문 온실가스 배출현황)

  • Ji, Chang-Yoon;Choi, Min-Seok;Gwon, Oh-In;Jung, Ha-Rim;Shin, Sung-Eun
    • Journal of the Architectural Institute of Korea Structure & Construction
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    • v.36 no.4
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    • pp.143-152
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    • 2020
  • This study analyzes in detail greenhouse gas emissions in building sector. To this end, this study used data on building characteristics (including building type, region, and construction year) and monthly energy consumptions (including electricity, city gas, and district heat) for all buildings from 2015 to 2018. These data were collected from the National Building Energy Database and the energy consumptions were converted into greenhouse gas (GHG) emissions. The total amount of GHG emissions from the building sector has increased steadily from 2015 (118.1MtCO2eq.) to 2018 (132.6MtCO2eq.). On the other hand, the more recently constructed buildings had lower GHG intensities. This result shows that strengthening building design criteria was effective on the reduction of GHG emissions in buildings, and that the increased buildings contributed to increasing GHG emissions of the building sector. In addition, sales facilities are thought to have the largest reduction potential as they had the highest amount of GHG emissions and GHG intensity. This study is expected to help establish new policies for GHG reduction in building sector as well as to evaluate the effects of existing policies.

A Study on the Architectural Process and the Characteristic of Municipal Building in Busan (부산부청(釜山府廳)의 건축과정과 변용특성)

  • Song, Hye-Young
    • Journal of architectural history
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    • v.29 no.5
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    • pp.7-16
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    • 2020
  • The Municipal Building of Busan was the first western-style building of Korea in 1879. It was also the predecessor of Busan Metropolitan City Hall. On the other hand, the Municipal Building of Busan was a symbolic structure that shows the history of Busan. The Municipal Building of Busan has inherited the construction location and site, including the speciality of Choryangwaegwan, and is a good example of the process of inheriting the authority of the former space through the appropriation of the building. The Municipal Building of Busan was relocated to the edge of the coast in 1934 because a small and dilapidated building failed to function properly. The relocation of the Municipal Building of Busan in 1934 was the origin of changing the coastal space in downtown. As a result, landfill sites along the coast were in the limelight and developed into the downtown area of Busan after Korea's liberation.

An Analysis of the Green Building Development Trends in Accordance with Usage of Building in Certified Cases of LEED (건축물 용도별 분류에 따른 친환경 건축 발전 경향 연구 - LEED 인증 사례를 통해서 -)

  • Park, Seong Tae;Kim, Kang Soo
    • KIEAE Journal
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    • v.9 no.2
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    • pp.3-8
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    • 2009
  • Green is an important keyword in the almost modern development. Green building is an alternative idea for the sustainable growth. Maximizing the green technological effect, this study provide you analyses of certified cases of LEED and green building strategies in accordance with use of building. And each changes on grades will show that development about green building technology with usage of building. We can get the accurate viewpoint through detailed studies about green buildings in USA.

IFCXML Based Automatic Data Input Approach for Building Energy Performance Analysis

  • Kim, Karam;Yu, Jungho
    • Journal of Construction Engineering and Project Management
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    • v.3 no.1
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    • pp.14-21
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    • 2013
  • To analyze building energy consumption, the building description for building energy performance analysis (BEPA) is required. The required data input for subject building is a basic step in the BEPA process. Since building information modeling (BIM) is applied in the construction industry, the required data for BEPA can be gathered from a single international standard file format like IFCXML. However, in most BEPA processes, since the required data cannot be fully used from the IFCXML file, a building description for BEPA must be created again. This paper proposes IFCXML-based automatic data input approach for BEA. After the required data for BEPA has been defined, automatic data input for BEPA is developed by a prototype system. To evaluate the proposed system, a common BIM file from the BuildingSMART website is applied as a sample model. This system can increase the efficiency and reliability of the BEPA process, since the data input is automatically and efficiently improved by directly using the IFCXML file..