• Title/Summary/Keyword: Building Complex

Search Result 1,609, Processing Time 0.028 seconds

Control of a building complex with Magneto-Rheological Dampers and Tuned Mass Damper

  • Amini, F.;Doroudi, R.
    • Structural Engineering and Mechanics
    • /
    • v.36 no.2
    • /
    • pp.181-195
    • /
    • 2010
  • Coupled building control is a viable method to protect tall buildings from seismic excitation. In this study, the semi-active control of a building complex is investigated for mitigating seismic responses. The building complex is formed of one main building and one podium structure connected through Magneto-Rheological (MR) Dampers and Tuned Mass Damper. The conventional semi-active control techniques require a primary controller as a reference to determine the desired control force, and modulate the input voltage of the MR damper by comparing the desired control force. The fuzzy logic directly determines the input voltage of an MR damper from the response of the MR damper. The control performance of the proposed fuzzy control technique for the MR damper is evaluated for the control problem of a seismically-excited building complex. In this paper, a building complex that include a 14-story main building and an 8-story podium structure is applied as a numerical example to demonstrate the effectiveness of semi-active control with Magneto-Rheological dampers and its comparison with the passive control with the Tuned Mass Damper and two uncoupled buildings and hybrid semi-active control including the Tuned Mass Damper and Magneto-Rheological dampers while they are subject to the earthquake excitation. The numerical results show that semi-active control and hybrid semi-active control can significantly mitigate the seismic responses of both buildings, such as displacement and shear force responses, and fuzzy control technique can effectively mitigate the seismic response of the building complex.

Example Study on Building Wind of Apartment Complex by Computational Fluid Dynamics - About Two apartment Complex in Cheon-An Region - (CFD에 의한 아파트 단지의 빌딩풍에 관한 사례연구 - 천안지역 2개 단지를 중심으로 -)

  • Roh, Ji-Woong
    • KIEAE Journal
    • /
    • v.8 no.4
    • /
    • pp.37-42
    • /
    • 2008
  • In the case that high-rise building is constructed, the surrounding wind velocity increase more than 50~100%. From this cause, many wind environmental problems can be occurred. For example, ordinary wind environmental disaster may be occurred in a region, or walking disturbed. In developed countries including USA, EU, and Japan, many efforts have been made for building wind prevention by grasping previously the effects before building constructed. But, We are bearing risk of wind environmental disaster because we have not enough recognition about building wind, and have not architectural prevention counterplans. This study aims to examine wind environmental characteristics of domestic apartment complex, and effective architectural counterplans. As the basic stage for this, we investigated pre-estimate tools and risk assessment methods of building wind in apartment complex, applied to two apart complex in Cheon-An region by CFD. As the result, serious damages were not presented. But, it is obvious that various architectural counterplans will be presented by this example researches.

Residents' Consciousness about the Energy Resource and the Environmental Impact at Green Building Certificated Housing Complex (친환경건축물인증 단지 거주자의 에너지자원 및 환경부하에 대한 의식 연구)

  • Kim, Jae-Eun;Kwon, Oh-Jung
    • Proceeding of Spring/Autumn Annual Conference of KHA
    • /
    • 2009.11a
    • /
    • pp.257-262
    • /
    • 2009
  • In green building certificated housing complex, although various planning factors in terms of 'Energy resource and Environmental impact' were adopted, the residents' consciousness for their economical and psycholgical effect has not been found. Therefore, the purpose of this study was to find out the usability of environment-friendly factors, with regard to the aspects of 'energy resource and environment impact' and residents, consciousness for them in order to provide the useful information to design the user-oriented green building house complex better than previous ones. the finding were summarized as follows: 1)Increasing awareness of 'green building certificated housing complex', Resident should feel contribution to the environment. 2)When mass housing planning, the development of sensible certification is required. 3)Green building certificated housing complex should change from 'certification for the Financial compensation' to 'certification for the Contribution to the environment'.

  • PDF

Case Study of Analysis of Problems and Minimizing Methods of Stack Effect in the Tall Complex Building (초고층 복합건물의 연돌현상 가중요인과 저감방안 사례연구)

  • Yu, Jung-Yeon;Cho, Dong-Woo;Yu, Ki-Hyung;Jeong, Cha-Su;Kang, So-Yeon;Song, Kyoo-Dong
    • Proceedings of the SAREK Conference
    • /
    • 2006.06a
    • /
    • pp.363-368
    • /
    • 2006
  • The purpose of this case study is to analyze stack effect problems and to develop methods minimizing methods of stack effect in the tall complex building in cold climates. The main problems in the tall complex building occur in high-rise elevators. Such problems as elevator doors that do not close and exhaust airflows result in excessive pressure differences across elevator doors due to stack effect. Under the expected conditions causing these pressure differences, computer simulations with CONTAMW computer program and field measurements are performed in the tall complex building. The results are analyzed in architectural design aspects. With these analysis, the tall complex building design guidelines to minimize stack effect are proposed.

  • PDF

An Analysis of Heating and Cooling Energy and Effect on Outdoor Air Cooling according to Building Type of Apartment Complex (공동주택 단지의 주동형식에 따른 냉난방 에너지 및 외기냉방 효과 분석)

  • Roh, Ji-Woong
    • Journal of the Korean Solar Energy Society
    • /
    • v.34 no.4
    • /
    • pp.31-38
    • /
    • 2014
  • This study makes three apartment building complex an object of analyzing representative building types and energy consumption rate of house holds, and effect of outdoor air cooling. Recently created apatrment complex is composed of very various types of building, plan, and orientation etc. But, it is difficult to remark conclusively that these various types of buildings are designed energy-effectively. Because architects are hard to find useful energy design guideline for decision making. By the preceding study, the present condition and problem about this subject is grasped, apartment building types were examined and representative types were extracted. In this study, energy simulation was conducted, and the effect to outdoor air cooling was analyzed about representative types of the subject apartment complex. It is expected that this analysed results will be basic data for the more integrated study. Research consequence can be summarized as follow: 1) Besides solar gain, household layout of building, orientation, and plan etc. effects compositively on energy consumption rate. 2) The effect of ourdoor air cooling in building of tower type can be improved by arranging households appropriately.

Evaluating Users' Occurrences Number and Interaction of Maintenance Management Personnel's Response for Mechanical Defects Complaint in Complex Building (복합건물에서 사용자의 기계결함민원 원단위 및 유지관리조직 대응의 상호작용 평가)

  • Kwak, Ro-Yeul
    • Journal of the Architectural Institute of Korea Structure & Construction
    • /
    • v.34 no.3
    • /
    • pp.95-102
    • /
    • 2018
  • In order to understand interaction between building users' occupant performance and building maintenance performance of maintenance management personnel, actual data from maintenance activities of buildings were analyzed. Also, using building defect customer complaint data reported by building user, satisfaction data on building maintenance services of building users and service response time of maintenance management personnel, a method for evaluating interaction of buildings with the same purpose and same size was proposed. Throughout analysis, average number of occurrences per unit area per year for the mechanical complaints in complex building were presented. In addition, using building users' satisfaction with facility management services, attitude of responding to business obstacles, number of occurrences per unit area per year of mechanical complaints and complaint processing speed, interaction was comprehensively identified and compared.

Analysis of Microclimate in Apartment Complex by Age (시대별 아파트 단지의 미기후 분석)

  • Kim, Chul-Hee;Jung, Eung-Ho;Kim, Dae-Wuk;Cha, Jae-Gyu
    • Proceeding of Spring/Autumn Annual Conference of KHA
    • /
    • 2009.11a
    • /
    • pp.104-108
    • /
    • 2009
  • Rapid urbanization resulted in expansion of urban area and increase of population bringing deepened housing shortage. Supply-oriented housing policy made apartment a representative residential space in Korea in spite of the short history of apartment. This study analyzed the shape and arrangement of main building by year and the microclimate in the complex depending on the number of floors. The purpose of this study was to present the basic data in developing apartment complex to solve problems like the stagnation of pollution source and the rise of temperature due to the declined ventilation in apartment complex, and the worsened urban heat island phenomenon due to the impeded flow of wind. This study rearranged the shape and arrangement of main building by year and the tendency of the number of floors by year in the process of change, by generalizing the process of change of apartment complex, a representative modern residential space through preliminary research. Based on it, 8 object lot by age was selected and simulated by using Envi-met. Simulation identified that the change of apartment complex takes place having a positive effect on microclimate in the apartment complex and the microclimate in the apartment complex is influenced a lot by the shape of complex. If in future apartment complex plan, a systematic legal criteria of design is made about the shape and arrangement of main building, it might have a positive effect on the improvement of microclimate in the apartment complex, a representative residential space in Korea.

  • PDF

Comparison Analysis of Building's Heating Energy Consumption in the Apartment Complex - Focused on Apartment in Daejeon - (공동주택 단지 내 동별 난방에너지소요량 비교 분석 - 대전지역 아파트단지를 중심으로 -)

  • Jang, Young-Hye;Kim, Jeong-Gook;Kim, Jonghun;Jeong, Hakgeun;Hong, Won-Hwa;Jang, Cheol-Yong
    • KIEAE Journal
    • /
    • v.15 no.3
    • /
    • pp.37-42
    • /
    • 2015
  • Purpose: Apartment is a typical residential type in Korea. In the past, apartment types were very monotonous. But today, the types of complex are changed because personal needs have been diversified and personalized. In order to meet those needs, construction companies are constructing various types of apartments. The more apartment types are diverse, the more the energy problems are taken place. So, the purpose of this study is to solve the problem of energy gap in the same complex through improving the thermal transmittance of wall. Method: Heating energy consumption of Building Energy Efficiency Rating System and heating energy usage of apartment show a similar trend on the graph. In order to identify the best position of heating energy consumption difference reduction, we change the building's U-value of front, back, side walls. Result: In the A complex, maximum and minimum heating energy consumption building's shapes are flat. the best efficiency is side U-value change and the worst is front change. In the E complex, maximum heating energy consumption building's shape is tower and minimum building shape is flat. Consequently, the front and back wall performance change was little effect to reduce energy gap, while the change of side wall's U-value show the great reduction between building's energy consumptions.

3D/BIM Applications to Large-scale Complex Building Projects in Japan

  • Yamazaki, Yusuke;Tabuchi, Tou;Kataoka, Makoto;Shimazaki, Dai
    • International Journal of High-Rise Buildings
    • /
    • v.3 no.4
    • /
    • pp.311-323
    • /
    • 2014
  • This paper introduces recent applications of three-dimensional building/construction data modeling (3D) and building information modeling (BIM) to large-scale complex building construction projects in Japan. Recently, BIM has been utilized as a tool in construction process innovation through planning, design, engineering, procurement and construction to establish a front-loading-type design building system. Firstly, the background and introduction processes of 3D and BIM are described to clarify their purposes and scopes of applications. Secondly, 3D and BIM applications for typical large-scale complex building construction projects to improve planning and management efficiency in building construction are presented. Finally, future directions and further research issues with 3D and BIM applications are proposed.

Thermal Performance in Apartment with respect to Building types - Focused on Apartment complex in Haengbok-dosi, Sejong city- (주거동유형을 고려한 공동주택 단지의 열성능 검토 - 세종시 행복도시 지역을 중심으로)

  • Roh, Ji-Woong
    • KIEAE Journal
    • /
    • v.17 no.3
    • /
    • pp.69-74
    • /
    • 2017
  • Purpose: The apartment complex constructed recently is composed of very various types of building, plan, and orientation etc. However, it is difficult to remark conclusively that these various types of buildings are designed energy-effectively, since it is difficult for architects to find useful energy design guideline for decision making. By the preceding study, the present condition and problem about this subject was grasped, apartment building types were examined and representative types were extracted. Method: Large apartment building complex having 1940 households, located in haengbok-dosi, sejong city, Korea is used as an example to conduct this study. Representative building types are extracted first. Then, heating and cooling load of households is analyzed. Lastly, effect of outdoor air cooling is investigated by computer simulation. Result: Results of this research are summarized as follows: 1. Besides solar gain, household layout of building, orientation, and plan have compositive effects on heating and cooling load. 2. The effect of outdoor air cooling in apartment can be improved by arranging windows of households.