자연재난과 관련된 위험관리 기법

변지석 ( Byeon Ji-seok ) 한국구조물진단유지관리공학회 2004 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.8 No.2

This paper describes risk management technologies for natural disaster of the present status of Korea and other advanced countries. In general, risk management technologies consist of three components; identify/assessment the risks, analyze the risks, and manage/mitigate the risks. For all different natural disasters (Typhoon, Flood, and Earthquake), detail steps and items of the risk management procedure are explained.

자연재난과 관련된 위험관리 기법

변지석(Byeon Ji-Seok) 한국구조물진단유지관리학회 2004 한국구조물진단학회 학술발표회논문집 Vol.- No.-

This paper describes risk management technologies for natural disaster of the present status of Korea and other advanced countries In general, risk management technologies consist of three components, Identify/assessment the risks, analyze the risks. and manage/mitigate the risks. For all different natural disasters (Typhoon, Flood. and Earthquake), detail steps and items of the risk management procedure are explained.

Arena를 이용한 BLU의 생산성 향상 사례

변지석(Ji Seok Byeon),김상태(Sang Tae Kim),변의석(Eui Seok Byeon) 한국SCM학회 2006 한국SCM학회지 Vol.6 No.1

외부벽판과 연결부재를 구조요소로 취급한 경우 철골구조물의 내진성능에 관한 연구

변지석,Byeon, Ji-Seok 한국전산구조공학회 2008 한국전산구조공학회논문집 Vol.21 No.2

본 연구는 일반 철골구조물에서 사용되는 구조용 프리캐스트 콘크리트 외부벽판과 연결부재로 인하여 건물 전체의 내진성능을 조사하였고, 벽판의 높이 변화에 따른 건물 전체의 횡방향 강성 변화량을 파악하였다. 외부벽판과 연결부재를 구조 부재로 간주할 경우 수동형 제진장치와 같이 지진에너지를 소산할 뿐 아니라 추가로 전체 건물의 횡방향 강성을 제공하는 것을 확인하였다. 이력거동 성능을 가진 연결부재를 비선형 유한요소해석 프로그램인 ABAQUS를 이용하여 조사한 결과, 건물의 내진성능 향상에 연결부재가 가장 중요한 역할을 하는 것으로 확인되었다. The purpose of this study is to investigate the seismic performance of both exterior precast concrete cladding panels and their connections on steel frame, when these cladding systems are considered as the structural components. The degrees of their participation of lateral stiffness to the main building are evaluated in terms of different heights of the cladding panels. Considering the cladding system as an integrated building provides additional lateral stiffness, as well as a mechanism for energy dissipation and this system can be used as one of an advanced passive seismic control system. Hysteresis behaviors of connectors are modeled and integrated into a nonlinear finite element analysis program, ABAQUS. The results show that connections play the most important role in structural cladding system and they improve seismic performance of overall building response.

RFID를 활용한 컨테이너 보안기술의 현황분석

변의석(Eui Seok Byeon),변지석(Ji Seok Byeon) 한국산업경영시스템학회 2011 한국산업경영시스템학회지 Vol.34 No.4

Information of freight tracking and tracing is one of core elements in logistics point of view. We can monitor the vehicle or vessel where freights are loaded and get the in-transit data via GPS. However, security problem exists after the shipments are unloaded. RFID is well utilized for securing the container which products are stuffed into. International standard organization sets relevant specification and e-seal appears to be at issue. The paper investigates current status of corresponding technology and proposes the policy for development of logistics industry.

정부의 팬데믹 보험 도입방안 연구

손민우(Minwoo Son),변지석(Jiseok Byeon),원정훈(Jeonghun Won) 한국방재학회 2022 한국방재학회논문집 Vol.22 No.3

The government has been compensating business interruption loss of small business owners caused by coronavirus through expanded fiscal policies. However, these policies are temporary and have negative effects such as inflation. Even though discussion is underway to introduce pandemic insurance as a sustainable way to recover from business interruption loss, the insurance product has not been developed. This study proposed a pandemic insurance model and confirmed its effectiveness by utilizing previous studies and surveys. A protection-type insurance model based on income and expenses similar to that of existing insurance was first proposed. The results of examining the adequacy of insurance based on other policy insurance operation cases and previous studies showed that the proposed model presented difficulty in activating insurance. Thus the modified pandemic insurance model was proposed, that combines protection-type and savings-type insurance to guarantee the amount paid and interest. Survey results found that people were more willing to sign up for the modified pandemic insurance model than for the protection-type insurance model based on income and expenses. In addition, the modified pandemic insurance model was thought to be a useful insurance model since it has various advantages such as being able to cover long-term business loss, compared to the protection-type insurance model with a similar level of government budget input. 정부는 확대재정정책을 통해 코로나19로 인한 소상공인의 영업손실을 보상하고 있으나 확대재정정책은 일시적이며 물가상승 등의 부작용을 수반한다. 지속 가능한 피해 회복 방안 마련을 위해 팬데믹 보험 도입 논의가 진행되고 있으나 아직 보험상품은 개발되지 않은 상황이다. 본 연구는 팬데믹 보험 모델을 제안하고 해당 모델의 유효성을 선행연구와 설문조사를 통해 확인하였다. 먼저 기존의 정책보험과 유사한 수지상등에 입각한 보장성 보험 모델을 제안하고 다른 정책보험 운영사례와 선행연구를 토대로 해당 보험의 적정성을 검토한 결과, 제안 모델은 보험 가입 활성화에 어려움이 존재할 것으로 예상되었다. 따라서 문제점 해결을 위해 수지상등에 입각한 보장성 보험에 저축성 보험을 결합하여 보험료로 납부한 금액과 이자를 보장하는 새로운 형태의 수정 팬데믹 보험 모델을 제안하였다. 설문조사 결과, 수정 팬데믹 보험 모델은 수지상등에 입각한 보장성 보험 모델보다 사람들의 가입 의사가 높은 것으로 조사되었다. 또한, 수정 팬데믹 보험 모델은 유사한 수준의 정부 예산 투입으로 수지상등에 입각한 보장성 보험보다 장기간 피해를 보장할 수 있는 등 다양한 장점을 나타내므로 유용한 모델이라고 판단된다.

목차 : 연석의 실물차량 충돌시험 데이터를 이용한 주행안전성 평가에 관한 연구

김종민 ( Jong Min Kim ),노관섭 ( Kwan Sub Noh ),김장욱 ( Jang Wook Kim ),변지석 ( Ji Seok Byeon ) 한국안전학회(구-한국산업안전학회) 2012 한국안전학회지 Vol.27 No.2

Current Guideline for Installation and Management of Sidewalks and Safety Facilities on Roadsj suggests that the types of curbs should be Bather curb (85˚). Although Barrier curbs (90˚) were not specified in the guideline. The curbs installed on the roads currently are Barrier curbs (90˚) which are not specified in the installation standard. Therefore, it is critical to prepare for the installation standard of curbs by researching types of curbs and hiving safety, This research have assessed the driving safety throughout Full Scale Crash Test according to type of curbs (Bather curbs (85˚) and Barrier curbs (90˚). Barrier curbs (90˚) showed higher figure in Theoretical head Impact Velocity, Post-impact Head Deceleration, Vehicle Damage when Crash, Passenger`s Wounds Severity, and every other items than Barrier curbs (85˚). Barrier curbs (85˚) were found to have better Occupant Safety Index. Analysis of Behavior Using Full-Scale Crash Test showed difference depending on the Impact Condition between Barrier curbs (85˚) and Barrier curbs (90˚), Generally, Barrier curbs (85˚) were superior than Barrier curbs (90˚) in terms of protecting the passengers and vehicle damages. When an impact angle increases, Acceleration of Vehicle, Variations of Speed, and Contact Relationship between Wheels and Curbs, two types of curb showed similarity. However, if an impact of an angle decreases, Barrier Curbs (85˚) showed excellence in Driving Safety such as Acceleration of Vehicle, Variations of Speed, and Contact Relationship between Wheels and Curbs.

비규격 비닐하우스 보험심사를 위한 설계강도 산출모형 개발

김진호(Kim, Jinho),김준영(Kim, Junyeong),이승수(Lee, Sungsu),변지석(Byeon, Ji Seok),정근채(Jeong, Keun Chae) 한국방재학회 2017 한국방재학회논문집 Vol.17 No.1

매년 태풍으로 인한 비닐하우스 피해가 보고되고 있으며, 농민들의 부담을 덜기위해 풍수해보험 제도를 시행하고 있다. 하지만 풍수해보험 가입 대상은 규격(내재해형) 비닐하우스로 한정되어 있으며, 설계강도를 추정하기 어려운 비규격 온실은 가입대상에서 제외되고 있다. 따라서 본 연구에서는 비규격 온실에 대한 풍수해보험 부보시 가입 심사기준 수립을 위해 비닐하우스의 주요제원을 이용하여 다중회귀분석을 수행하였으며, 이를 통해 도출된 회귀식으로부터 풍속에 대한 설계강도을 추정할 수 있는 모형을 개발하였다. 또한 모형의 검증을 위해 구조해석 결과와의 비교를 실시하였으며, 검증 결과 오차평균 1.7m/s로 풍수해 보험 부보시 보험사의 수용범위를 고려하여 적용 가능할 것으로 판단된다. Has been reported vinyl house damage caused by typhoons and heavy snow every year, it is to enforce the wind and flood insurance system in order to reduce the farmers of the burden from the damage that occurs to such a disaster. However, vinyl house type to be applied to the insurance is limited to Disaster-Resistant of vinyl house that has been presented to ｢No.2014-78｣ that has been notice by NAFRA (Ministry of Agriculture, Food and Rural Affairs). For this reason, in this study, to develop a simple estimation model of the design strength of the non-disaster-resistant of vinyl house for establishing underwriting standards during the wind and flood insurance coverage. Analyzing the specifications of the disaster-resistant of vinyl house, to develop estimation equation design wind speed, performing multiple regression analysis.

지진담보 정책성 보험 운영 방안에 대한 연구

박홍규(Park, Hong Gyu),백천우(Baek, Chun Woo),변지석(Byeon, Ji Seok) 대한토목학회 2017 대한토목학회 학술대회 Vol.2017 No.10

전단벽식 구조의 휨거동을 이용한 마찰감쇠기의 제어성능

정희산(Chung, Hee-San),문병욱(Moon, Byoung-Wook),박지훈(Park, Ji-Hun),이성경(Lee, Sung-Kyung),민경원(Min, Kyung-Won),변지석(Byeon, Ji-Seok) 한국소음진동공학회 2008 한국소음진동공학회 논문집 Vol.18 No.8

High-rise apartments of shear wall system are governed by flexural behavior like a cantilever beam. Installation of the damper-brace system in a structure governed by flexural behavior is not suitable. Because of relatively high lateral stiffness of the shear wall, a load is not concentrate on the brace and the brace cannot perform a role as a damping device. In this paper, a friction damper applying flexibility of shear wall is proposed in order to reduce the deformation of a structure. To evaluate performance of the proposed friction damper, nonlinear time history analysis is executed by SeismoStruct analysis program and MVLEM(multi vertical linear element model) be used for simulating flexural behavior of the shear wall. It is found that control performance of the proposed friction damper is superior to one of a coupled wall with rigid beam. In conclusion, this study verified that the optimal control performance of the proposed friction damper is equal to 45 % of the maximum shear force inducing in middle-floor beam with rigid beam.