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파라메트릭 기술기반 철근 콘크리트 구조물의 기둥부재 자동배근시스템 구축에 관한 연구
홍성욱,조영상,이제혁,홍성철,Hong, Seong-Uk,Cho, Young-Sang,Lee, Je-Hyuk,Hong, Seong-Chul 대한건축학회 2011 대한건축학회논문집 Vol.27 No.1
Recently, as there has been high interests in Building Information Modeling (BIM), there are studies and movements to adapt this new paradigm in both academic field and industrial field. While, Reinforced concrete structure is a mainly used structural system in Korea. However, it is limited the development of reinforced concrete system in BIM comparing to that of steel structures. The primary reason is that it is not interoperable the information on reinforcement in RC structures and the progress of modeling reinforcement has a low productivity for a reinforcement object being created manually by user in the BIM platform. For the requirements, ARPM(Automatic Reinforcement Placing Module) has been developed to connect structural analysis and design database to BIM platform, to perform the design of reinforcement placing and to draw reinforcement in BIM platform, in this study. By developing the ARPM, it is expected to raise the productivity of the construction for RC structures and increase the effectiveness in the current modeling process in BIM platform.
초음파 속도법 및 반발경도법을 이용한 콘크리트 모의부재 압축강도 추정에 관한 연구
홍성욱,조영상,Hong, Seong-Uk,Cho, Young-Sang 대한건축학회 2011 대한건축학회논문집 Vol.27 No.1
As infrastructures are being deteriorated, nondestructive evaluation of existing structures and construction quality control are increasingly demanded in the construction industry. The importance of predicting compressive strength of concrete structure is also gradually increasing in construction industry. The estimation of concrete compressive strength is a critical factor of the construction management and quality control. This study has been conducted using Ultrasonic pulse velocity method and Rebound hardness method, which are nondestructive test methods for the estimation of the concrete compressive strength. The method for predicting the strength and the position of rebars of reinforced concrete slabs and detecting void of reinforced concrete slab are derived from the relationship between compressive strength and stress wave velocity. It is focusing to examine the relationship among compressive strength of concrete, Ultrasonic pulse velocity method and result by rebound number by Schmidt hammer test.
홍성욱 ( Sung-uk Hong ),유태규 ( Tae-gyu Yoo ),정진헌 ( Jin-heon Jeong ),유동수 ( Dong-soo Yu ) 한국정보처리학회 2017 한국정보처리학회 학술대회논문집 Vol.24 No.2
작품명은 Hazardous Gas Alarm System 이다. 이는 현재 가스 검출기에 대한 단점을 보완하여 현장 근로자가 편안하게 사용할 수 있도록 한다. 주된 기술은 센서를 이용한 수치 측정 및 수집이며 이를 활용하여 근로자에게 대기오염 정도를 알려주고 위험수치를 넘으면 근로자가 쉽게 알 수 있게 할 수 있는 작품이다. 현재 시중에 나와 있는 제품들에 비해 값싸고 사용하기 쉽게 제작하였다.
홍성욱 ( Sung-uk Hong ),유태규 ( Tae-gyu Yoo ),정진헌 ( Jin-heon Jeong ),유동수 ( Dong-soo Yu ) 한국정보처리학회 2017 한국정보처리학회 학술대회논문집 Vol.24 No.2
얼굴인식을 통한 통합 교통관리 시스템은 현재 횡단보도 신호등에 대한 단점을 보완하여 보행자와 차량 양측의 대기시간을 최소화 함을 목적으로 한다. 주된 기술은 영상처리이며 얼굴인식을 위해 사용된다. 또한 중앙서버를 구축하여 각 교차로나 신호등간의 정보를 취합 할 수 있으며 이를 활용하여 차량통행 및 보행자의 통행이 원활하게 할 수 있다.
홍성욱(Hong Sung Uk),임남형(Lim Nam Hyoung),배현웅(Bae Hyun Ung),김경호(Kim Kyung Ho),김홍집(Kim Hong jip),조성진(Cho Seong J) 한국방재학회 2018 한국방재학회논문집 Vol.18 No.2
세계적으로 기온이 상승함에 따라 열차의 안전에 영향을 미치는 레일 좌굴의 문제는 더욱 심각해지고 있다. 열차 회사들은 열차의 안전 운행 속도를 결정하고 좌굴 발생을 예방하기 위해서 레일의 온도를 모니터링하고 있다. 레일의 온도 편차는 좌굴 발생이 예상되는 여름철에 크게 발생하며 이는 레일의 불균형한 온도 분포를 만들어 낸다. 하지만, 현존하는 레일온도 계측에 관한 연구들은 레일의 불균형한 온도 분포를 고려하지 않고, 접근이 쉬운 표면의 레일 온도에만 중점을 두고 해석을 하였다. 본 연구에서는, 유한요소해석을 수행하여 온도 분포에 따른 열변형 결과를 얻고 이를 통해 레일의 온도분포를 분석하였다. 이러한 연구 결과는 향후 진행될 레일 좌굴에 관한 연구의 정확성을 향상시켜 줄 것으로 기대된다. As global temperatures continue to increase, the problem of rail buckling, which affects railway networks, will become ever more severe. Railway companies monitor the temperature of their rails to set safe running speeds and predict when buckling is likely to occur. However, to obtain accurate temperature data, it is important to measure it at the correct point either on or within the rail. Existing methods of determining where to measure the temperature generally fail to account for the nonuniform distribution of temperature within a rail and instead choose surface measuring points based on ease of access. In the present study, we conduct a thorough thermal and structural analysis of a generic rail to understand the distribution of temparature and thermal deformation. The findings of this research are timely and of significant potential impact both theoretically and practically.
Mock-Up Test를 통한 콘크리트 구조물의 내부 결함 추정에 관한 연구
홍성욱 ( Hong Seong-uk ),조영상 ( Cho Young-sang ) 한국구조물진단유지관리공학회 2006 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.10 No.1
As infrastructures are being deteriorated, non-destructive evaluation of existing structures and construction quality control are increasingly demanded. This paper is to study Flaw detection technique of concrete structure using Impact Echo method, which is one of the Non-Destructive Test methods. This technique is based on stress wave propagation. The concrete structure of the flaw detection consist of 7 types! one group for the thickness presumption, one group for the position of the aperture, one group for the position of the steel bar, one group that the steel plate is buried in it, one group that the PVC tube is buried in it. one group for the position of the crack and one group that the electric wire tube is buried in it. Experiments were performed using 7 types of concrete structure that have simulated damages at known locations for tests and analysis. Test results are evaluated and summarized in this paper.
충격반향기법을 이용한 콘크리트 슬래브 모의부재의 두께 추정에 관한 연구
홍성욱 ( Hong Seong-uk ),윤상기 ( Yoon Sang-ki ),김종현 ( Kim Jong-hyun ),김승훈 ( Kim Seung-hun ),이용택 ( Lee Yong-taeg ) 한국구조물진단유지관리공학회 2018 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.22 No.1
The purpose of this study is to estimate the thickness of concrete slabs using the impact echo method based on the stress waves, which is one of the nondestructive test method, to evaluate the safety and construction conditions of concrete slabs. If the correlation and reliability of the impact echo method and the slab thickness are secured, it can be considered that the quality control of the concrete slab is possible in existing structures and structures under construction.
표면파기법 및 충격반향기법을 이용한 콘크리트 슬래브의 AE제 혼입량이 압축강도와 응력파 속도에 미치는 영향에 관한 연구
홍성욱(Hong Seong-Uk),김성범(Kim Seong-Beom),양준원(Yang Jun-Won),조영상(Cho Young-Sang) 대한건축학회 2008 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.28 No.1(구조계)
This research is focused on predicting concrete compressive strength and the influence of Air-contents of concrete slab using Impact Echo (IE) method, Spectral Analysis of Surface Wave(SASW) method, which are one of the Non-destructive Test (NDT) methods. The influence of air ratio to the stress wave velocity and the compressive strength has been analyzed using specimens that have been prepared based on the variable of air entrained agent mix ratio which are 0%, 0.15%, 0.3%, 0.7% and 1.5% by weight. The reduction range of compressive strength and stress wave velocity has been decreased after reaching the air ratio of 4%. Predicting compressive strength based on stress wave velocity leads to the results of an average error 5.3% in compressive wave velocity and 3.6% in surface wave velocity except for non-Ali concrete.