• 한국건설관리학회:학술대회논문집
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• 한국건설관리학회 2007년도 정기학술발표대회 논문집
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• pp.159-166
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• 2007

가치공학(Value Engineering, 이하 VE라 함)은 생산성향상기법으로 알려져 왔으나, 건설 분야에서도 적용되어 지난 십여 년 이상의 기간 동안 선진외국뿐 아니라 국내의 여러 사례에서 이미 그 효과가 입증된 우수한 관리기법이다. 국내 VE는 지난 2005년 건설기술관리법(이하 '건기법') 시행령('설계의 경제성 등 검토'-건기법시행령 제 38조의 13)이 개정되어 총공사비가 100억원 이상인 건설공사로 확대 적용되고 있는 실정이다. 그러나 국내 시장에서의 VE는 그 이론과 적용에 있어 여러 차이를 보여 온 것이 사실이며, 이로 인해 VE의 확대와 보급에 걸림돌로 작용해 온 것도 부인할 수 없는 현실이다. 따라서 본 연구에서는 최근 설계VE 수행사례를 통하여, 그 문제점과 원인을 다각적으로 검토하고, 이에 대한 개선방안을 제시하여 설계VE의 성공적인 국내정착에 일조 하고자 한다.

• Structural Engineering and Mechanics
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• 제62권3호
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• pp.259-272
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• 2017

In this study, recently developed swarm intelligence algorithm called Social Spider Optimization (SSO) approach and its enhanced version of SSO algorithm with spider jump techniques is used to develop a structural optimization technique for steel space structures. The improved version of SSO uses adaptive randomness probability in generating new solutions. The objective function of the design optimization problem is taken as the weight of a steel space structure. Constraints' functions are implemented from American Institute of Steel Construction-Load Resistance factor design (AISC-LRFD) and Ad Hoc Committee report and practice which cover strength, serviceability and geometric requirements. Three steel space structures are optimized using both standard SSO and SSO with spider jump (SSO_SJ) algorithms and the results are compared with those available in the literature in order to investigate the performance of the proposed algorithms.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2011년도 춘계 학술논문 발표대회 2부
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• pp.61-62
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• 2011

In recent years, domestic construction companies have developed a 200MPa grade high-strength concrete and promoting the superiority of each technique. However, applying design and construction practices of developed high-strength concrete are weak. Most applications is limited to partial use and then the actual examples only used as a layer of high-rise building outrigger with casting some test on basement' vertical structures. In this study, developed materials for separation casting through joint research have been examined economy and others by field application and improving the workability.

• 대한건축학회연합논문집
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• 제21권5호
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• pp.161-168
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• 2019

The use of various digital tools makes freeform modeling possible. At the same time, with the development of structural and construction technologies, Free-Form Architecture are beginning to be implemented realized, as the desired data extraction such as the size and coordinate points of the members is possible. Currently, in many cities around the world, Irregular-Shaped High-rise Buildings, which express the dynamic symbolism, are recognized for their landmark values. In order to realize the Irregular-Shaped High-rise Buildings, it is necessary to understand various fields such as the characteristics of digital tools, digital technique logic, design process, and construction method. In particular, it is important to plan Irregular-Shaped High-rise Buildings so that the various types of efficiency can be reviewed together, while generating understanding and formations from the initial design stage. Therefore, this study uses conceptual and parametric design tools related to form generation in digital architecture to analyze the details, methods, and characteristics of the Irregular-Shaped High-rise Buildings form generation process. In this paper, the parametric design tool is applied to study the various types of design and the process characteristics that can be considered in the initial design stage of the unstructured skyscraper.

• 한국철도학회논문집
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• 제5권4호
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• pp.231-236
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• 2002

Todays, crash safety requirements of the railway vehicle structures become important design criterion according to the increased driving speed and the lightweight construction. Although the crash analysis using computer simulation can be effectively applied to predict the crash performance of the railway vehicles in the early design stage, the optimized design w.r.t the crash safety could be realized by the crash tests with actual prototype vehicles. However, it is very expensive and time-consuming task to perform the crash test of the railway vehicles. As a measure to cope with the problem, in this paper, the scale modeling technique is suggested and experimentally verified to predict the impact energy absorption characteristics of full scale model of aluminum extrusions sub-structures and the high-speed railway vehicle structure.

• 복식문화연구
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• 제23권5호
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• pp.737-754
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• 2015

The structural aesthetics of architecture are becoming an inspirational source for many fashion designers and have been reborn in structural fashion. This study planned to analyze the method of expression of structural aesthetics expressed in modern structural fashion design and the construction method to maximize such an effect on the basis of the construction characteristic of Santiago Calatrava as the representative architect of the structural aesthetic. According to the study, the structural aesthetics expressed in modern structural fashion design are as follows: 1) The symbolical formative aesthetic expressed by symbolical inference and analyzation; 2) the dynamic beauty of physic expressed by visual emphasis and dynamics; and 3) the asymmetric beauty of symmetry expressed by metastasis toward the boundary between balance and imbalance. In addition, to maximize structural aesthetics, we used repetition and a progressive technique based on rhythm, asymmetry, and incision-based variances, such as balance, polygon flux, and inference, and analyzation-based distortion as the structuring principle. The following expression methods for maximizing structural aesthetics were found: 1) symbolical and structural exaggeration of appearance; 2) detail technique expansion and material property diversification; and 3) the three-dimensional transformation of structure and shell expression. Structural fashion design was found to have maximized structural aesthetics by using such expression methods to secure artistic esthetics, destroy existing shapes and patterns, and create unique shapes.

• 자연, 터널 그리고 지하공간
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• 제23권4호
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• pp.49-57
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• 2021

• 한국콘크리트학회:학술대회논문집
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• 한국콘크리트학회 1998년도 가을 학술발표대회 논문집(III)
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• pp.718-723
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• 1998

The program which could determine cross-sectional dimension of the prestressed concrete box girder bridges at the stage of preliminary design was developed using the optimal technique in this study. It could minimize the cost required in the design of box girder bridges and the construction with the full staging method. Objective cost function consisted of six independent variables such as height of cross-section, jacking force and thickness of web and bottom flange. The SUMT(Sequntial Unconstrained minimization Technique) was used to solve the constrained nonlinear minimization optimal problem. Using the program developed in this study, optimum design was performed for existing bridges with one cell cross section of constant depth. The result verify the compatibility of the program.

• 패션비즈니스
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• 제28권3호
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• pp.1-15
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• 2024

Christopher Nemeth is a designer who combines characteristics of a pioneering upcycle design and deconstructionist design with fabrics, waste clothing, and pieces of fabric recycled in the 1980s. By hommaging his work from the Louis Vuitton 2015 F/W collection, Kim Jones is once again becoming a source of design inspiration in an era where upcycling fashion is attracting attention. Accordingly, an upcycling design approach might appeal to the MZ generation. Christopher Nemes' design presented in this study as a representative fashion designer of dismantling upcycling is basically based on dismantling. It can also be interpreted as dismantling upcycling design because it uses used clothing, waste clothing, and discarded fabrics as materials. This study examined main techniques of upcycling fashion design and derived characteristics of Nemes design as "deconstructive techniques using free lines of construction," "recycling upcycling vintage materials and clothing accessories," and "using handcrafted techniques of artistic sensibility." By applying Nemes' dismantling upcycling technique, four designs were developed for men's top and bottom sets for targets in their 20s and 30s to suggest the commercialization possibility. This study is meaningful in that it proposes a methodical alternative to the new deconstructionist upcycling design that can show Nemes' aesthetic characteristics, creative perspective, and personality by modernly reinterpreting the deconstructionist upcycling technique extracted through analysis of fashion designer Christopher Nemes' design. In particular, by actually producing the work and confirming whether the design technique can be implemented, the value as a fashion product that can be sold is realized.

• 한국산업융합학회 논문집
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• 제27권2_2호
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• pp.403-414
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• 2024

The aim of this study is to evaluate the productivity of multilayered modular housing units during the prefabrication phase. Additionally, it shows the results of productivity analysis conducted using the Web Cyclone technique. Initially, an review of literature and prior studies helped outline the comprehensive manufacturing process of laminated modular apartments, examining the range of minimum, average, and maximum work durations along with workforce size. Subsequently, the productivity of the multilayered apartments' prefabrication was assessed using the Web Cyclone technique, focusing on the workflow, duration, and personnel involved. This analysis also included a comparison of productivity against the initial plan based on the outcomes of a sensitivity analysis.