• Journal of the Korea institute for structural maintenance and inspection
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• v.19 no.5
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• pp.38-44
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• 2015

In this paper, the vibration control effect of the Exo-type damping system was investigated by applying the Kagome dampers to 15-story and 20-story frame structure apartment. A new Exo-type damping system composed of the dampers and supporting column was proposed in the previous work and numerical analysis were performed to investigate the effects of optimum stiffness ratio between controlled structure and supporting column, the size of damper and yield ratio of the damper. The numerical analysis results of a structure with Exo-type damping system up to the third story showed that the stiffness ratio should be higher than 7.0 and the damper device yield ratio be at least 8.0% ($V_{damper}/V_{base\;shear$) to effectively reduce the base shear and the maximum drift of the uppermost story. When the Exo-type damping system was installed up to the fifth story, the stiffness ratio should be higher than 2.5 and damper device yield ratio needs to be at least 3.5% ($V_{damper}/V_{base\;shear$) for obtaining the target performance.

• Korean Journal of Remote Sensing
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• v.37 no.6_1
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• pp.1527-1543
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• 2021

In this paper, we explore the applicability and utility of a technology that generating clustered solid building models based on point cloud automatically by applying it to various data. In order to improve the quality of the model of insufficient quality due to the limitations of the automatic building modeling technology, we develop the building shape modification and texture correction technology and confirmed the resultsthrough experiments. In order to explore the applicability of automatic building model generation technology, we experimented using point cloud and LiDAR (Light Detection and Ranging) data generated based on UAV, and applied building shape modification and texture correction technology to the automatically generated building model. Then, experiments were performed to improve the quality of the model. Through this, the applicability of the point cloud data-based automatic clustered solid building model generation technology and the effectiveness of the model quality improvement technology were confirmed. Compared to the existing building modeling technology, our technology greatly reduces costs such as manpower and time and is expected to have strengths in the management of modeling results.

• Korea Journal of Geothermal Energy
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• v.8 no.3
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• pp.32-43
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• 2012

• Journal of the Earthquake Engineering Society of Korea
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• v.7 no.2
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• pp.9-20
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• 2003

At present, the information on the foundation-structure interaction is lacking. As a result, the seismic performance evaluation of buildings seldom considers the effect of the foundation performance on the building responses. Recent earthquakes such as the 1993 Hokkaido Nansei-oki Earthquake(M=7.8), the 1994 Northridge Earthquake(M=6.7), the 1995 Hyogoken-Nambu Earthquake(M=7.2), and the 1999 Chi-Chi Earthquake (M=7.6) have shown that building damages are significantly affected by the degree of damage sustained by the building foundation and the interaction between the building and the foundation. This paper presents a nonlinear seismic analysis method for the seismic performance evaluation of reinforced concrete buildings which considers the pile foundation-structure interaction. The proposed method is applied to an actual building which was damaged during the 1993 Hokkaido Nansei-oki Earthquake. The result reveal that the method is able to predict the performance of the building.

• The Journal of Sustainable Design and Educational Environment Research
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• v.16 no.2
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• pp.54-63
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• 2017

The various colors and transparency of DSC and operability unrelated with directions greatly expand the use of BIPV, as a multi-functional composite of module. Therefore the possibility of DSC BIPV is examined by the case study and the analysis and then its applicability is examined. Most of the DSC BIPVs, which are found through a total of six case studies and analyzes in Korea and abroad, are mainly implemented with window glass and shading devices. This is related to the DSC transparency property. Improvements are due to the irritation of the eye due to the color of the red module. Therefore, it is important to take into account the color of the BIPV window depending on the use of the building and the room. Meanwhile, some colors of application model may stimulate eyes and such colors should be considered by use of buildings and rooms in the application of BIPV window. DSC BIPV has prospective diffusibility with the development of flexible module for the application of building surface.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2013.10a
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• pp.289-291
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• 2013

건물일체형풍력시스템에서는 윈드가이드를 비롯한 주면 형상이 풍력터빈 주변의 풍속 등과 같은 유동특성에 중요한 영향을 미친다. 이 연구에서는 sech 함수를 이용한 새로운 충돌위험도 평가법에서 피항구역의 문턱값을 결정하는 방법을 분석하고 실제 상황에 적용 가능한 식을 개발하였다.

• 월간 기계설비
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• s.235
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• pp.47-50
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• 2010

송도는 도시 전체를 '친환경 개발'로 기획해 건설하고 있다. '친환경 개발(sustainable development)'이란 용어는 20년 이상 회자되어 왔고, 다양한 정의와 기준에 따라 적용되어 왔다. 이 '친환경'의 주된 개념은 설계 시공 및 건물 운영과 관련한 미래 세대에 대한 고려를 담고 있다. 지속성의 개념을 가진 디자인은 일반적인 건물보다 더 긴 생명주기를 제공하며 건물운영에도 더 적은 자원을 소모한다.

• The Magazine for Energy Service Companies
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• s.33
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• pp.38-39
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• 2005

건실한 전문건설업체 ㈜금강종합건설이 최근 ESCO등록을 마치고 본격적인 에너지절약사업에 들어갔다. 국내에너지소비량의 $25\%$를 차지하는 건물부문의 에너지절약을 위해 신축건물의 설계단계에서부터 원천적인 에너지절약을 유도하겠다는 금강종합건설은 건설업계의 축적된 기술과 노하우를 ESCO사업에 적극 적용하겠다는 방침이다. ESCO사업부의 이운조 이사를 만나 앞으로의 사업방향에 대해 들어봤다.

• 방재와보험
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• s.92
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• pp.48-53
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• 2002

본 고는 한국화재보험협회가 2000회계연도(2000. 4. 1~2001. 3.31) 중 실시한 특수건물에 대한 화재안점점검 결과를 종합.분석한 내용 가운데서 주요 부분을 요약한 것이다. 제1절에는 안전점검 결과 분석의 근거, 목적 및 대상을, 제2절에는 특수건물 일반현황, 잠재위험, 방재사항 분석 및 소화설비할인 적용사항을, 제3절에는 안전점검 결과 분석을 토대로 한 개선, 건의사항을 각각 언급하였다.

• Journal of the Computational Structural Engineering Institute of Korea
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• v.23 no.5
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• pp.465-473
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• 2010

As increase of height and slenderness of buildings, serviceability design criteria such as maximum lateral drift and wind-induced vibration level play an important role in structural design of high-rise buildings. Especially, wind-induced vibration is directly related to discomfort of occupants. However, no practical algorithm or design method is available for structural designers to control the acceleration level due to wind. This paper presented a control method for wind-induced vibration of high-rise buildings using the resizing algorithm. The level of vibration due to wind is calculated by well known estimation rules of ASCE 7-02, NBCC 95, SAA83, and Solari method. Based on the fact that the level of wind-induced vibration is inversely proportional to the magnitude of natural periods of buildings, in the design method, natural periods of a high-rise building are modified by redistribution of structural weight according to the resizing algorithm. The design method is applied to wind-induced vibration control design of real 42-story residential building and evaluated the efficiency and effectiveness.