• Title/Summary/Keyword: 초고층 건물

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Rainfall-runoff Analysis Considering the Effect of High-rise Building (초고층 건물의 영향을 고려한 강우-유출 과정 해석)

  • Cho, Eunsaem;Kim, Soeun;Lee, Munseok;Yoo, Chulsang
    • Proceedings of the Korea Water Resources Association Conference
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    • 2020.06a
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    • pp.107-107
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    • 2020
  • 본 연구의 목적은 실제 규모의 초고층 건물을 고려하여 강우-유출 과정을 해석하고, 초고층 건물이 강우-유출 과정에 미치는 영향을 파악하는 것이다. 초고층 건물을 고려하기 위해 건물의 지붕과 벽면을 각각 독립적인 소유역이라 가정하여 분석을 수행하였다. 특히, 건물의 벽면 소유역에는 바람의 영향을 받아 비스듬하게 내리는 강우를 입력자료로 적용하였다. 각 소유역에서 발생하는 유출은 shot noise process 기반 강우 유출-모형으로 모의되었다. Shot noise process 기반 강우-유출 모형을 이용하여 초고층 건물의 벽면과 지붕에서 발생하는 유출을 독립적으로 모의할 수 있었다. 실험실 환경에서 건물 모형이 존재할 때의 강우-유출 과정을 관측하였으며, shot noise process 모형으로 모의한 유출수문곡선과 관측 유출수문곡선이 유사한 특성을 보이는 것을 알 수 있었다. 서울시 강남구에 위치한 실제 규모의 초고층 건물을 고려하여 유출수문곡선을 유도해본 결과, 첨두유출량이 기존 유출수문곡선과 최소 6.5%에서 최대 67.5%까지 차이나는 것으로 확인되었다. 본 연구의 결과는 초고층 건물이 다수 존재하는 도시유역의 강우-유출 해석 결과의 정확성을 향상시킬 수 있을 것으로 판단된다.

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The ventilation performance of a vertical exhaust duct in a high-rise building (초고층 건물의 입상배기관을 통한 환기성능)

  • 김신도;김경분;황의현;김형수
    • Proceedings of the Korea Air Pollution Research Association Conference
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    • 2001.11a
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    • pp.375-376
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    • 2001
  • 건축 기술의 발달과 도시토지 이용의 효율성을 강화하기 위하여 최근에는 초고층 건물이 많이 건설되고 있다. 이러한 초고층 건물은 에너지 절약적인 설계로 높은 기밀성을 가질 뿐 아니라, 외주부 또한 개폐할 수 없는 유리벽에 의하여 구획되므로 자연 환기에 열악한 특성을 지니고 있다. 초고층 건물의 경우 배기시스템으로 중앙집중배기방식을 채택하고 있으며, 중앙배기시스템은 배기입상덕트의 형상 및 규격, 흡출기의 성능, 그리고 기상조건 등 여러 변수들에 의해 영향을 받는다. (중략)

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A Study on the Emergency Stairway Evacuation of Skyscraper (초고층 건물의 비상계단 대피실험에 관한 연구)

  • Back, Min-Ho;Shin, Ho-Jun
    • Journal of the Korean Society of Hazard Mitigation
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    • v.10 no.4
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    • pp.55-61
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    • 2010
  • In this study, the construction trend of skyscraper was summarized chirologically to examine the characteristics and current, and the issue in evacuation was examined through the case of fire breakout in skyscraper. Based on this, the type of evacuation using the emergency stairway during the fire breakout in skyscraper was decided on six types and empirical experiment was conducted for each type. The issues on the participants that participated in the emergency stairway evacuation experiment from the fire breakout in skyscraper and the difficulties in the evacuation were qualitatively evaluated to summarize each element of hindrance to summarize basic information on emergency stairway evacuation.

Construction Sequence Analysis for Checking Stability in Complex-Shaped High-Rise Building under Construction (비정형 초고층 건물의 시공 중 안정성 검토를 위한 시공단계해석)

  • Jang, Dong-Woon;Kang, Ji-Hun;Chea, Seung-Yun;Eom, Tae-Sung;Kim, Jae-Yo
    • Proceedings of the Computational Structural Engineering Institute Conference
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    • 2010.04a
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    • pp.263-266
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    • 2010
  • 비정형 형상의 초고층 건물이 증가함에 따라, 설계 시공 계획 단계에서의 시공 중 건물의 구조적 안정성 검토가 핵심 사항으로 부각되고 있다. 시공 중 비정형 초고층 건물의 안정성을 확보하기 위해서는, 횡력저항시스템이 완전히 형성되기 전 구조체 자중의 불균형 분포에 의해 발생하는 수직부재의 불균등 축소, 골조의 기울어짐 혹은 횡변위 등이 시공단계해석에 의하여 검토되어야 하며, 시공단계해석은 구조건전성모니터링, 시공 보정 프로그램, 시공계획 수립 등과 체계적으로 결합되어 진행되어야 한다. 이 논문은 시공 중 비정형 초고층 건물의 구조 안정성 검토를 위하여, 실제 비정형 초고층 프로젝트에 시공단계해석을 적용하였으며, 시공 중 초고층 건물의 안정성 확보를 위한 주요 검토 항목 및 방법을 제시하였다.

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Reduced Degree of Freedom Modeling for Progressive Collapse Analysis of Tall Buildings using Applied Element Method (응용 요소법을 이용한 초고층 건물의 축소 모델링 연쇄붕괴 해석)

  • Kim, Han-Soo;Wee, Hae-Hwan
    • Journal of the Korea Concrete Institute
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    • v.26 no.5
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    • pp.599-606
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    • 2014
  • Since progressive collapse of tall buildings can cause enormous damage, it should be considered during the design phase of tall buildings. The progressive collapse analysis of tall buildings using finite element methods is almost impossible due to the vast amount of computing time. In this paper, applied element method was evaluated as an alternative to the finite element method. Reduced DOFs modeling technique was proposed to enable the progressive collapse analysis of tall buildings. The reduced DOFs model include only the part which is subjected to direct damage from blast load and the structural properties such as mass, transferred load and stiffness of excluded parts are accumulated into the top story of the reduced DOFs model. The proposed modeling technique was applied to the progressive collapse analysis of 20-story RC building using three collapse scenarios. The reduced DOFs model showed similar collapse behavior to the whole model while the computing time was reduced by 30%. The proposed modeling technique can be utilized in the progressive collapse analysis of tall buildings due to abnormal loads.

Developing an Assessment Model for Major Cost-Increasing Factors in Skyscraper Construction Using FMEA (FMEA 기법을 이용한 초고층 건축시공의 원가 증가요인 평가모델의 개발 방법론 연구)

  • Kim, Ki-Kook;Gang, Ji-Sun;Kim, Han-Soo
    • Proceedings of the Korean Institute Of Construction Engineering and Management
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    • 2006.11a
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    • pp.507-510
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    • 2006
  • Recently, the skyscrapers are increasing. There are major cost-increasing factors to management in the skyscraper construction. The more projects are large like the skyscraper construction, the more systematic methods and tools are needed for cost control. This study proposes an assessment model for major cost-increasing factors in skyscraper construction using FMEA.

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손실제한을 위한 고층건물 설계

  • Davis, Richard J.
    • 방재와보험
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    • s.131
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    • pp.11-13
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    • 2009
  • 초고층 건물은 그 높이에 비례하여 복잡성이 증가하므로 소방 측면에서도 다양한 문제들이 발생하게 된다. 초고층 건물은 건물 이용자의 인원 수, 재산가치, 사고 시 사회에 미칠 파장 등으로 인해 높은 수준의 화재안전대책이 요구된다.

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A Study on the Prediction of Shortening for Steel-Reinforced Concrete(SRC) Column in the High-Rise Buildings (초고층 건물에서 철골철근콘크리트(SRC) 기둥의 축소량 예측에 관한 연구)

  • Jeong Eun-Ho;Kim Jeom-Han
    • Journal of the Korea Concrete Institute
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    • v.16 no.1 s.79
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    • pp.36-42
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    • 2004
  • Although steel-reinforced concrete(SRC) is widely used in a high-rise building, a methods used to predict the column shortening of SRC structural members has many problems in applying a theoretical equation which considers only the material characteristics of reinforced concrete. In this study, the degree of accuracy of the existing method calculating the column shortening of a high-rise building is examined. For this, first, the actual measurement data are chosen about the column shortening of a high-rise building established with SRC structural members. Then the column shortening of a SRC structural member is calculated through computer program. Finally, the comparison between the measurement data and the analytical ones is executed. According to this study, it can be concluded that there is little difference between the former and the latter. Therefore, the existing method can be used to evaluate the column shortening of a high-rise building using a SRC structural members.

Influence of Predominant Periods of Seismic Waves on a High-rise Building in SSI Dynamic Analyses with the Complete System Model (연속체 모델에 기초한 SSI 동적해석 시 지진파 탁월주기가 초고층 건물에 미치는 영향)

  • You, Kwangho;Kim, Juhyong;Kim, Seungjin
    • Journal of the Korean GEO-environmental Society
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    • v.20 no.12
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    • pp.5-14
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    • 2019
  • Recently in Korea, researches on seismic analyses for high-rise buildings in a large city have been increasing because earthquakes have occurred. However, the ground conditions are not included in most of seismic researches and analyses on a high-rise building. Also the influence of the predominant period of a seismic wave is not considered in reality. Therefore, in this study, the influence of the predominant period of a seismic wave on the dynamic behavior of high-rise buildings was analyzed based on the complete system model which can consider the grounds. For this purpose, 2D dynamic analyses based on a linear time history analysis were performed using MIDAS GTS NX, a finite-element based program. Dynamic behavior was analyzed in terms of horizontal displacements, drift ratios, bending stresses, and building weak zones. As a result, in overall, the dynamic response of a high-rise building become bigger as the predominant period of a seismic wave become longer. It was also found that the predominant period had a greater influence than other parameters, ground conditions and peak ground acceleration.