• Title/Summary/Keyword: Standard design criteria

Search Result 450, Processing Time 0.028 seconds

Vibration-Analysis of rubber-tired AGT light rail vehicle (고무차륜 AGT 경량전철 차량의 진동해석)

  • Kim Y.S.;Jeon R.G.;Lim T.K.;Lee J.S.
    • Proceedings of the Korean Society of Precision Engineering Conference
    • /
    • 2005.10a
    • /
    • pp.39-42
    • /
    • 2005
  • Dynamic model of the Korea standardized rubber-tired AGT light rail vehicle, and boundary conditions between vehicle and infrastructures (running track, guidance rail) were defined to analyze vehicular vibration behaviors occurred at the worst condition. Using the commercialized software RecurDyn, vibration accelerations of car body and bogies were analyzed. and, based on the ISO standard 2631-1, the vibration characteristic test is performed in the test track. As the results, the Korea standardized rubber-tired AGT light rail vehicle satisfied the ISO standard criteria and design requirement.

  • PDF

Assessment of the Strong Motion Duration Criterion of Synthetic Accelerograms (내진설계를 위한 인공지진파 강진지속시간 기준의 평가)

  • Huh, Jung-Won;Jung, Ho-Sub;Kim, Jae-Min;Chung, Yun-Suk
    • Proceedings of the Earthquake Engineering Society of Korea Conference
    • /
    • 2006.03a
    • /
    • pp.133-140
    • /
    • 2006
  • This paper addresses a fundamental research subject to complement and improve current domestic design specifications for the strong motion duration criterion and the envelop function of artificial accelerograms that can be applied to the earthquake-proof design of nuclear structures. The criteria for design response spectra and strong motion duration suggested by WRC RG 1.60 and ASCE Standard 4-98 are commonly being used in the profession, and they are first compared with each other and reviewed. By applying 152 real strong earthquake records that are over magnitude of 5 in the rock sites to the strong motion duration criterion in ASCE 4-98, an empirical regression model that predicts the strong motion duration as a function of earthquake magnitude is then developed. Using synthetically generated earthquake time histories for the five cases whose strong motion durations vary from 6 to 15 seconds, a seismic analysis is conducted to identify effects of the strong motion durations on the seismic responses of nuclear structures.

  • PDF

A Study on the Development of Database for Lighting Design System (조명 설계 시스템을 위한 데이터베이스 개발에 관한 연구)

  • 조성오
    • Korean Institute of Interior Design Journal
    • /
    • v.13 no.4
    • /
    • pp.196-203
    • /
    • 2004
  • In The Lighting design is important to acknowledge appearance space. Development of artificial light makes a extension to life space in the Modern life. With the rapid development of efficient light sources, have lighting design acquired the tools that allow artificial lighting to be produced with adequate illuminance levels. However, by the task of defining the objectives and methods behind discipline, of deciding on the criteria by which the artificial lighting that is now provide many available data to be anpaied. The main concern is which illuminace levels and types of lighting will ensure optimum visual performance, high productive and safety at design which are affordable. This study is support to standard design process with material reflection rate, installing the lighting fixture, task illuminance level and automatic arithmetic calculation during the lighting design. Lighting Design database can check and support other final lighting level. A quantitative light that is primarily oriented toward providing a recommended illuminance level, the criterion of develop a concept that goes beyond the requirements that would ensure productivity and safety to meet the needs of the architecture and interior space. illuminance level is compose to space task and space code according to KS A 3011. To be able to design the visual effect of an environment the central reference quantity has to provided the Database.

A case research for standard of cost in design service (디자인서비스의 대가기준 사례조사 연구)

  • Ahn, Jinho;Lee, Jeungsun;Kim, Injun
    • Journal of Service Research and Studies
    • /
    • v.9 no.3
    • /
    • pp.61-72
    • /
    • 2019
  • Design is a knowledge service industry that is undervalued in Korea despite its large impact on the development of high - tech industries such as national industrial policy and the fourth industrial revolution. In the design industry, the strategic outsourcing system collapses. This phenomenon is not confined to the domestic market, and the design service companies of design-developed countries such as Europe and the US are also struggling with the classic. Accordingly, some implications were found through the case study of domestic design projects, including overseas, that private companies are more concerned with design cost reduction and cost structure to secure liquidity rather than improving design quality level and pursuing innovation through design outsourcing. It is big. As design is a core competency of a company, internalizing core design tasks, and as products and services become platforms, regional design countermeasures have been reduced, which has led to a decline in the cost standard for large companies' design service outsourcing. In design service industry, design outsourcing is performed at the request of the client, and the service value of the outsourcing is received. In the early 2000s, the importance of design management led global consulting companies to pursue M & A rather than cooperate with design service companies, and Samsung Electronics and other large corporations acquired a large number of excellent design personnel and developed their own design management research institute. This study investigated the design service outsourcing cases of public and private companies (large corporations, midsize companies) widely in relation to the design service price criterion, and grasped the indicators of the actual size and level of the design industry. I will make suggestions about the value and direction of the global design industry through interviews with experts and literature on the changes and influences of these cost criteria.

A Study on Reliability Based Design Criteria for Reinforced Concrete Columns (철근(鐵筋)콘크리트기둥의 신뢰성(信賴性) 설계규준(設計規準)에 관한 연구(研究))

  • Cho, Hyo Nam;Min, Kyung Ju
    • KSCE Journal of Civil and Environmental Engineering Research
    • /
    • v.3 no.1
    • /
    • pp.25-33
    • /
    • 1983
  • This study is directed to propose a set of reliability based design provisions which gives more rational design for R.C. columns than the current WSD or USD standard design codes. Cornell's MFOSM theory is used for the derivation of the algorithm for the evaluation of uncertainties associated with resistances, whereas the magnitude of the uncertainties associated with load effects are chosen primarily by considering our level of practice. And thus the uncertainties so obtained are applied for the reliability analysis and the derivation of reliability based design criteria. A target reliability(${\beta}_0=4.0$) is selected as an appropriate value by comparing the values used in foreign countries and by analyzing the reliability levels of our current USD and WSD design standars. Then, a set of load and resistance factors corresponding to the target reliability is proposed as a reliability based design provision, and furthermoere a set of allowable stresses for reinforcing steel and concrete having same level of relibity with the corresponding LRFD criteria is also propared for the current WSD design provision. It may be concluded that the proposed LRFD reliability based design provisions and the corresponding allowable stresses give more rational design than the current code for R.C. columns and may be desirable to introdue into the current WSD and USD provision of R.C. column design.

  • PDF

Distributed Operation of Structural Design Process (구조 설계 프로세스의 분산운용)

  • Hwang Jin-Ha;Park Jong-Hoi;Kim Kyung-Ill
    • Proceedings of the Computational Structural Engineering Institute Conference
    • /
    • 2005.04a
    • /
    • pp.663-671
    • /
    • 2005
  • Distributed operation of overall structural design process, by which product and process optimization are implemented, is presented in this paper. The database-interconnected multilevel hybrid method, in which the conventional design method and the optimal design approach are combined, is utilized there. The method selectively takes the accustomed procedure of the conventional method in the conceptional framework of the optimal design. Design conditions are divided into primary and secondary criteria This staged application of design conditions reduces the computational burden for large complex optimization problems. Two kinds of numeric and graphic processes, are simultaneously implemented on the basis of concurrent engineering concepts in the distributed environment of PC networks. Numerical computation on server and graphic works on independent client are communicated through message passing. Numerical design is based on the optimization methodology and the drawing process is carried out by AutoCAD using the AutoLISP programming language. The prototype design experimentation for some steel trusses shows the validity and usability of the method. This study has sufficient adaptability and expandability in methodology, in that it is based on general theory and industry standard systems.

  • PDF

An Energy Performance Comparison of University Lecture Facilities for Energy Saving Building Design (에너지 절약형 건축물 설계를 위한 대학 강의동 형태별 에너지 성능 비교에 관한 연구)

  • Kim, Tae-Hoon;Seo, Ji-Hyo;Choo, Seung-Yeon
    • Journal of the Architectural Institute of Korea Planning & Design
    • /
    • v.34 no.11
    • /
    • pp.105-112
    • /
    • 2018
  • Global environmental problems are growing, and the importance of buildings with high energy consumption has been emphasized. In Korea, the Ministry of Land, Transport and Maritime Affairs has been promoting the mandatory zero energy building since 2020, and guidelines related to the zero energy building have been developed. In addition, based on the "Energy-saving Design Criteria for Buildings" of the "Green Building Promotion Act" in Korea, the standards for energy-saving design are specified and the energy saving plan is written. Besides, the 'Energy-saving construction standards for eco-friendly houses' also specify insulation, machinery, equipment, and sunshade. Also, there is little consideration about the cost such as construction cost and material cost which should be considered important in the construction stage. Therefore, this study aims at analysis of building type and energy performance versus materials for energy saving building design considering energy performance in planning aspect of initial design stage. In this study, because the variables can not be neglected in this study, it is selected as the lecture facility of the 'K' university campus building which can consider the remaining factors except the passive design element as the control variable, Energy performance analysis.

A Development of Condition Evaluation Standard Considering Structural Characteristic for Members of LNG Outer Storage Tanks (LNG 외조 저장탱크의 구조적 특성을 고려한 상태평가 기준 개발)

  • Choi, Kyoung-Jae;Seo, Chang-Joo;Kim, Young-Gu;Jo, Young-Do;Kim, Jung-Hoon
    • Journal of the Korean Institute of Gas
    • /
    • v.21 no.5
    • /
    • pp.64-69
    • /
    • 2017
  • South Korea is the world's second-largest importer of LNG and possess about 70 tanks which are in operation by 2017. Thirty years as the design warranty period have exceeded since LNG storage tanks as the core facility of LNG industry were constructed in 1986. The LNG storage tank is under precision safety diagnosis from 2014 due to urban gas business act amendment. There is no criteria of condition evaluation for outer tank of LNG storage tank at the time of precision safety diagnosis. Through analysis of structural characteristic of LNG storage tank and civil structure condition evaluation standards, the criteria of condition evaluation for main members was developed. The criteria of objective condition evaluation can improve safety and reliability of LNG storage tank and suggest matenance criteria.

A Study on the Establishment of Housing Performance Criteria for Modular Building (모듈러 건축물의 거주환경 성능기준 설정에 관한 연구;음환경 성능을 중심으로)

  • Ko, Kwang-Il;Kim, Yong-In;Lee, Chan-Sik
    • Proceedings of the Korean Institute Of Construction Engineering and Management
    • /
    • 2006.11a
    • /
    • pp.628-631
    • /
    • 2006
  • Modular Construction is a method, which factory-produced units are transferred to on-site and assembled to form complete buildings. It is expected that its demand will increase gradually. Because it has some advantages such as duration reduction, movement, reuse and environmental friendliness etc. For the Modular Construction to be introduced and applied, we needs the objective and reasonable performance criteria. This study presents the acoustic performance criteria of the modular building. For this one, this paper reviews legal standard related to performance, analyzes the performance evaluation and survey on pilot projects. The presented performance criteria can be specifically asked the demand by owner in a design guideline. In addition, it makes designer and general contractor accomplish target performance. Eventually, it can improve the performance of Modular Building.

  • PDF

The Planning of Design Guideline for New-Hanok-Style Public Buildings: Focusing on the Welfare Facilities in Apartment Complex (신한옥형 공공건축물 단지형 디자인가이드라인의 계획 방향: 공동주택단지 내 부대복리시설을 중심으로)

  • Cho, Eun Kil;Kim, Young Hoon;Kim, Won Cheon;Park, Joon Young
    • Land and Housing Review
    • /
    • v.10 no.4
    • /
    • pp.1-12
    • /
    • 2019
  • The purpose of this study is to set the direction of development of the design guideline of the New-Hanok-Style public building in apartment complex and to use it as basic data for future architecture plans. The existing Hanok architecture standards and guidelines were analyzed and the characteristics of New-Hanok-Style Public Building in apartment complex were applied. The planning direction of the design guideline was derived. First, although the criteria and guidelines related to the Hanok produced and distributed were classified differently according to the purpose of production, the details and contents were similar. Second, the general planning criteria items were divided into layout, external space plan, building plan, and performance plan. Third, the elements of 'creative inheritance of traditional architecture' and 'modern building technology', which are the characteristics of New-Hanok-Style Public Building, were applied. In addition, we analyzed elementary welfare facility guidelines and applied elements such as layout type and zoning setting. Fourth, a special planning standard for applying the building system required for the New-Hanok-Style Public Building in apartment complex was added. In the future, it is expected to revitalize New-Hanok-Style Public Building containing the unique identity(genetic factor; DNA) of the nation by developing and disseminating relevant building standards, design guidelines, and maintenance manuals.