• Title/Summary/Keyword: design and construction approach

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단면도를 이용한 3차원 파라메트릭 설계

  • Kim, Byung-In;Kim, Kwang-Soo
    • Journal of Korean Institute of Industrial Engineers
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    • v.20 no.3
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    • pp.35-53
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    • 1994
  • Orthographic views ore traditionally used for engineering drawings. This paper presents a methodology for 3D parametric design using orthographic views. The parametric design technique, which is used to design 2D orthographic views, is based on production rules. In the production rule-base, several view interrelation rules and over 50 geometric rules are included. An efficient algorithm is also developed to expedite the reasoning process. For 3D object construction from orthographic views, the approach known as bottom-up geometrical approach is used. The approach consists of 4 steps : 1) generation of wire-frame, 2) construction of face from wire frame, 3) formation of 3D subobjects from faces, and 4) construction of final 3D objects. Curvilinear solids as well as planar solids can be constructed. A method of converting existing 2D CAD data to parametric 3D CAD data is also presented.

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Optimum Design of Retaining Wall with Seismic Constraints (내진제약조건(耐震制約條件)을 갖는 옹벽(擁壁)의 최적설계(最適設計))

  • Kim, Kee-Dae
    • Journal of the Korean Society of Industry Convergence
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    • v.6 no.2
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    • pp.95-102
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    • 2003
  • In this paper, optimum design is considered over the retaining wall with seismic constraints. The sequential linear programming method(SLP) is used as a rational approach to this optimum design. To make a comparison between the seismic design and the normal design, retaining wall with 4~7m height were adopted. It is shown that the seismic design is more expensive (over 30%) than the normal design for the construction cost.

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A Case Study on the Design and Drivability Criteria of Steel Pile in Offshore (해상 강관말뚝의 설계 및 항타시공관리 사례연구)

  • Song, Myung-Jun;Park, Yung-Ho;Yoo, Seok-Jun;Sim, Dong-Hyun
    • 기술발표회
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    • s.2006
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    • pp.75-85
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    • 2006
  • The project comprised the construction of the new oil pier and associated topside facilities and demolition of exiting south pier. The site is located approximately 33km south of Kuwait city at MAA refinery. The approach trestle and berth structures of the new oil pier were designed to be supported by steel tubular piles Total 2,480 numbers of piles(795 piles at Approach Trestle, 1187 piles at Berth 1 -4 and 498 piles at Berth 5-6) had to be driven through the calcareous silty sand In this study, the design procedures for offshore steel pipe piles, evaluation for the compression and tension capacities by static and dynamic load test and effective driving criteria by the final set values are discussed

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Durability design and quality assurance of major concrete infrastructure

  • Gjorv, Odd E.
    • Advances in concrete construction
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    • v.1 no.1
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    • pp.45-63
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    • 2013
  • Upon completion of new concrete structures, the achieved construction quality always shows a high scatter and variability, and in severe environments, any weaknesses and deficiencies will soon be revealed whatever durability specifications and materials have been applied. To a certain extent, a probability approach to the durability design can take the high scatter and variability into account. However, numerical solutions alone are not sufficient to ensure the durability and service life of concrete structures in severe environments. In the present paper, the basis for a probability-based durability design is briefly outlined and discussed. As a result, some performance-based durability requirements are specified which are used for quality control and quality assurance during concrete construction. The final documentation of achieved construction quality and compliance with the specified durability are key to any rational approach to more controlled and increased durability. As part of the durability design, a service manual for future condition assessment and preventive maintenance of the structure is also produced. It is such a service manual which helps provide the ultimate basis for achieving a more controlled durability and service life of the given concrete structure in the given environment.

Analysis of Improvement Methods of Safety Management Guidelines with Design for Safety

  • Kim, Minjung;Park, Moonseo;Lee, hyun-soo;Lee, Dowan;Lee, seul bi
    • International conference on construction engineering and project management
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    • 2015.10a
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    • pp.602-603
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    • 2015
  • Despite all efforts to reduce construction disaster, construction site accident rate has steadily increased in Korea since 2008. As a different approach from traditional research, there is a growing issue about design for safety concept to prevent construction disaster. The notion is that construction worker's safety need to be considered at design phase, not only at construction phase. Globally, the notion has been noted that to improve the safety of the worker and used in practice. However, in Korea, most of safety management guidelines are limited to construction phase. From recent statistics, only 1.4 percent of designer feel responsible for safety accident at construction site. In this circumstance, this research find out safety guidelines through literatures reviews and practical experience of safety management in other country which apply design for safety concept. Selected guidelines are verified by survey which is evaluated with risk, function, cost, time and aesthetic view categories. Through the survey, define guidelines which could be effectively applied in Korea. By using proposed safety guidelines for design phase, preventing construction accident and improving designer's recognition of safety issue at design phase are expected.

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The Application of Safety Impact Assessment to Tunnel Construction (터널공사에서의 안전영향평가의 적용)

  • Kim, Byung-Sik;Choi, Bong-Joon;Seo, Jong-Won
    • 한국방재학회:학술대회논문집
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    • 2008.02a
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    • pp.545-548
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    • 2008
  • In this study, the concept of safety impact assessment to achieve 'Design-for-Safety' in design phase is introduced. For this purpose, safety impact assessment model was devised and a methodology using the risk-based safety impact assessment approach for NATM of tunnel projects is suggested. The suggested methodology includes safety information survey, classification of safety impact factors caused by design and construction, and quantitative estimation of magnitude and frequency of safety impact factors. A real-world case study on the safety impact assessment of a tunnel construction project is also provided in the paper.

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"Standard Model" approach to building projects in the UK and potential role of project team to mitigate any local difference~from international developer's perspective

  • Tanaka, Koji
    • International conference on construction engineering and project management
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    • 2020.12a
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    • pp.425-432
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    • 2020
  • In order to improve the sustainability and smart construction, it is discussed arguably that developing and applying consistent "standard model" to plan business, design, construct and operate a building is considered to be one of the effective and efficient approach. The scope of this article is to examine, from the international developer's perspective, the "standard model" approach of a hotel brand to building projects in the UK, and also to explore potential role of project team to mitigate any local difference at the project level. These projects are developed by the same developer adopting the same business plan, design and operation to each project. In order to clarify the actual and likely difference in construction results, reference is also made to those building projects located in other geographical markets including Japan, Germany and USA, and focus is given on the analysis of its programme and cost. Principle findings are that there exists geographical difference especially in environmental and planning system, and that major local difference is found at least in the programme at the design stage. In contrast, the difference in the building cost itself may not be necessarily considered major if currency exchange rate being taken into account appropriately. It is also observed that there were cases where any difference in the programme was mitigated by taking different approach to procuring and defining roles of management and professional team at the project level. In conclusion, from the international developer's perspective, the geographical difference of the "construction system" surrounding building projects can typically lead to major prolongation of programme, however, these different construction results could be mitigated at least to a certain extent by introducing appropriate changes to the role of project team.

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Scenario-based Learning: Experiences from Construction Management Courses

  • Lim, Benson Teck-Heng;Oo, Bee Lan
    • International conference on construction engineering and project management
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    • 2015.10a
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    • pp.583-587
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    • 2015
  • Scenario-based learning (SBL) has been used in a variety of training situations across different disciplines. Despite its seemly widespread use in construction management discipline, very few attempts have been made to explore its effectiveness and the respective students' learning experience. Using a survey research design, this study aims to investigate students' perceptions on SBL approach in construction management courses. The specific objectives are: (i) to identify the characteristics of a favourable SBL environment, and (ii) to explore the students' learning experience and effectiveness of the SBL approach. The results show that the four characteristics of a favourable SBL environment are: effective team formulation, constant engagement with lecturer, working in a group, and incorporation of motivational incentive for participation. The students really appreciated the opportunities to apply concepts learnt in the lectures in their SBL group work. Also, they perceived that the SBL approach is effective in developing their reflective and critical thinking skills, analytic and problem-solving skills and their ability to work as a team. These findings should facilitate more critical approaches to similar form of teaching methods.

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Behavior of Mechanically Stabilized Earth Retaining Walls with Different Construction Sequence (시공과정에 따른 보강토 옹벽의 거동 특성)

  • 유충식;이광문
    • Proceedings of the Korean Geotechical Society Conference
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    • 1999.10a
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    • pp.473-480
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    • 1999
  • This paper presents the results of a parametric study on the behavior of mechanically stabilized earth retaining wall. It has been recognized that the currently available design guidelines, which is base on the limit equilibrium approach, cannot properly account the interaction effect between the components, construction sequence, and foundation settlement which may impose a significant influence on the wall behavior. A parametric study using finite element analysis was performed to investigate the behavior of MSE wall under different construction conditions and the applicability of the current design approach. In the parametric analysis, the effects of the construction sequence, the surcharge, and the foundation stiffness were studied and a detailed finite element modeling for various components of the system were employed. The results, such as wall displacement and earth pressure distributions, reinforcement forces, vertical stress distribution were then thoroughly analyzed to investigate the effect of construction details on the wall behavior.

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A Study on the Concept of Sustainable Housing Design (지속가능한 집합주택계획의 개념 설정에 관한 연구)

  • Woo, Dong-Ju;Yang, Jae-Hyuk
    • KIEAE Journal
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    • v.2 no.4
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    • pp.3-10
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    • 2002
  • The main purpose of this dissertation is to develop an integrated approach to sustainable housing development, which would be applied in both academic studios and professional practice. This approach is based upon the concept of sustainability encountered in the process of housing design efficiency. It is concerned with the basic identification of problems and needs, the setting of design goals, and the constraints under which the future design and construction will have to operate. The components of the research approach focus on: (1) the identification of main issues of sustainable architecture (2) the identification of the concept of sustainability as integrated approach for architectural design. (3) the analysis of context between the housing design and the main issues of sustainablility. (4) the identification of the concept of sustainable housing design. Based on these results, this paper suggested the concept of sustainable housing design as integrated approach.