• 한국강구조학회 논문집
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• 제21권4호
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• pp.361-373
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• 2009

유전자 알고리즘을 이용한 닐센아치교의 최적설계기법을 이 논문에서 제시하였다. 설계 매개변수로는 닐센아치교의 아치-라이즈비와 강중비에 대해서 최적화기법을 적용하여 각각의 거동을 분석하고, 적정성을 평가하여 최적의 매개변수 값을 결정하였다. 매개변수의 결정은 구조물의 안전성과 사용성 그리고 경제성에 중요한 설계인자로서 정형화가 요구된다. 이를 위해 최적화 기법으로 전역 최적해 탐색능력이 우수한 유전자 알고리즘을 사용하였으며, 설계 목적함수로는 구조물의 총 중량을 사용하였고, 제약조건으로는 변위, 응력, 시공성 제약조건을 두었다. 구조해석은 미소변위이론에 의한 탄성해석을 수행하여 유전자 알고리즘과 조합하여 병렬연산으로 수행시간을 단축시켰다. 이 연구에서 개발된 최적설계기법을 사용하여 최적의 아치-라이즈비와 강중비, 최적설계영역을 제시 하였으며 실무에 적용할 수 있도록 하였다.

• KIEAE Journal
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• 제17권1호
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• pp.5-13
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• 2017

Purpose: This study, by comprehensively the characteristics of new Hanok application techniques with the proposed site application technology in the course of the design changes that have been accumulated through Hanok technology development the second stage business, by analyzing the range of reflection, new Considering the direction reflects the efficiency of the new Hanok application techniques. Method: new Hanok application technology, it was been established through research and development of large 1 new Hanok technology it has been proposed through the "site-specific application techniques" and 2 builders and designers "space-time proposed technique" Analysis of the case, at the center of the design changes, the land the body of laws and regulations, the requirements of the public buildings, compared to the construction method and the like for the reduction of construction costs, new Hanok applied technology in the process of change by it There was analyzed whether acceleration on the range and step which is reflected in the design Result: The result of new Hanok applied technology was built through the demonstration build business case, process another major technology, foundation, woodwork, walls, roof, has been reflected in the ceiling construction, the inclusion of items in the proposed technique of construction , it was applied to the main steps in general, except for other construction work landscaping. Application techniques and construction proposal technology research team has presented, show the difference between the scope and method. With significance effort to improve the unreasonable traditional methods of these core processes that can be reflected in the field repeated the construction proposed technique as a result of the utility that can be applied for substantial construction.

• 한국지반공학회:학술대회논문집
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• 한국지반공학회 2004년도 춘계학술발표회
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• pp.285-292
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• 2004

Earth Anchor method as a supporting system is widely used in the large scale deep excavation of urban areas or slope excavation project. Considering the application frequency of that method and catastrophe of that method under unproper construction management, we can find out many problems relevant to the domestic design and construction management of earth anchor method. When we encounter the cases of rapid increments and various decrements in earth anchor axial forces, considering the characteristic of earth anchor method, it is an essential point to catch the reasons and to prepare countermeasures. This article introduces two actual monitoring examples based on the close analyses of measured data in a typical large scale deep excavation project and slope excavation project. One is a rapidly increasing case of earth anchor axial forces with the continuous advance of incremental deformation in a geological layer interface. And another is a decreasing case of earth anchor axial forces with the construction conditions. The effort of this article aims to improve and develop the technique of design and construction in the coming projects having similar ground condition and supporting method.

• 한국강구조학회 논문집
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• 제10권1호통권34호
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• pp.63-72
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• 1998

강구조물의 강성설계법을 실용적인 변위조절법인 구조물량재분배기법과 강도설계법을 결합하여 개발하였다. 본 연구에 사용된 재분배기법은 최적화기법에 의하여 유도되었으며, 최적화문제의 에너지이론에 근거한 부재변위기여도를 이용하여 정식화되었다. 이러한 재분배기법에 의한 변위조절은 설계민감도계수의 계산 그리고 구조재해석을 필요로 하지 않는 특성을 가지고 있다. 변위조절을 위한 구조물량의 재분배에 의한 부재응력의 재분배 효과는 허용응력설계법에 준한 강도설계모듈에 의하여 조절되었다. 개발된 강성설계법을 3차원 트러스 구조물의 설계에 적용하였다.

• 한국건설관리학회:학술대회논문집
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• 한국건설관리학회 2008년도 정기학술발표대회 논문집
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• pp.5-12
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• 2008

양산 부산대학교병원 건립공사는 종합병원 의료타운 신축 프로젝트이다. 계획단계부터 건설사업관리자(CMr)가 참가하여 설계 시공일괄사업자를 선정한 후, 실시설계 진행과정을 거쳐 시공단계, 시공이후단계에 이르기까지 프로젝트의 모든 단계에 건설사업관리(CM) 업무를 일관적으로 적용한 사례이다. 또한 설계와 시공의 추진에 Fast Track을 도입하여 공기단축에 성공한 것에 그 의미를 찾을 수 있다. 본 사례는 설계 이전단계에 설계시공일관업체를 선정하였으며, Fast Track수법의 적용을 염두에 둔 설계 및 공사일정계획, 설계단계의 설계관리, Fast Track에 입각한 단계별 공사발주 및 계약관리, 기본설계 실시설계단계의 VE 수행, 시공단계에서의 설계변경 관리, 시공 후 유지관리 단계의 운용관리 등 건설사업관리 업무가 모든 단계에서 다각적으로 제공되었다. 본 보고에서는 상기와 같은 건설사업관리 적용상의 과제와 개선방향, 특히 설계 시공일괄사업에서 효율적으로 CM 업무를 수행할 수 있는 방안을 제시하여, 초대형 턴키(Turnkey) 프로젝트의 CM적용에 기여하고자 한다.

• 한국소음진동공학회논문집
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• 제24권2호
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• pp.102-107
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• 2014

The engine excitation forces are considered as major vibration source for the forklift truck, especially in small class. Even though the current engine mounting system designs are acceptable for vibration isolation, the performance of the engine mounting system is still required for the tendency of light weight, higher power and driver's higher vibration requirement. In this paper vibration reduction technique of forklift engine which is supported on rubber mounts is presented. Based on the dynamic model of resilient engine mounting system, design evaluation program is established. The design optimization technique and evaluation method of system properties are discussed. Effects of optimal design are validated through comparison with test results.

• 한국실내디자인학회:학술대회논문집
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• 한국실내디자인학회 1999년도 춘계학술발표대회 논문집
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• pp.98-101
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• 1999

In the last several decades of 20 century, the user oriented design concept has evolved in more concrete ways, producing POE and UPD(User Participated design). These concepts are ways of achieving the fit between built environments and human needs. These, technique in the digital world has implied and promoted lots of experimental ways to interact with possible users before the construction stages in the design process to reduce the results, stemming from ineffective planning and designing. The purpose of this paper is to show an evaluation technique in the design cycle. An actually designed child care facility was evaluated before construction by potential users. For this purpose, focused group interview was employed.

• 한국안전학회지
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• 제22권1호
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• pp.54-60
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• 2007

This paper describes typical design and construction practice for in-situ ground reinforcement technique using improved steel pipe pressure grouting. A case history is presented to illustrate the benefit gained by application of the technique. This technique was applied to cut slopes developed in the construction of auxiliary spillway of 00 dam. Applicable conditions, method of survey, slope stability analysis and construction are given in this parer. As for the construction method, a procedure is given and the main points are the control of construction work. As a result of the pull-out test, it is shown that seel pipe nailing is particularly useful for stabilizing rock slope.

• 국제학술발표논문집
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• The 3th International Conference on Construction Engineering and Project Management
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• pp.1307-1312
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• 2009

Design is an act based on multidisciplinary information. The involvement of various stakeholders makes it difficult to process, plan, and integrate. Iteration is frequent in most of the engineering design and development projects including construction. Design iterations cause rework, and extra efforts are required to get the optimal sequence and to manage the projects. The simple project management techniques are insufficient to fulfill the requirements of integrated design. This paper entails two things: design structure matrix and design parameters' information based model. The emphasis has been given to optimal sequence and crucial iteration using design structure matrix analysis technique. The design projects have been studied using survey data from industry. The optimal sequence and crucial iterations results have been utilized for proposed model. Model integrates two things: information about produced- required key design parameters and information of design changes during the design process. It will help to get familiar with Design management in order to fulfill contemporary needs.

• 한국산업융합학회 논문집
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• 제14권4호
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• pp.157-165
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• 2011

The study figures out the alternatives of training BIM design experts which is the biggest obstacle in training manpower of professional BIM designer, the largest problem when the plant introduce BIM design about the change in Construction Environment by Equipment Based BIM Design in reality of design followed by equipment based BIM design, education institution plan. BIM is the system which is built to make these information be used easier and technique which enables design construction and maintenance in 3-dimensional virtual space by designing buildings in 3-dimensional space, and by data-basing the generated information of every life-cycle information. As the essential contents of the study, educational institutions with the public authority should invest the opening of educational programs, recruit of experts and development of textbooks from a long-term perspective. And also, the role of public institution is important above all for the development of construction industry.