• Proceedings of the Korean Institute of IIIuminating and Electrical Installation Engineers Conference
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• 1998.11a
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• pp.236-241
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• 1998

건축전기설비 표준시방서는 건축설비의 안전 및 공사시행의 적정성과 품질확보 등을 위한 표준적인 시공기준으로서 발주자 또는 설계등의 용역업자가 공사 시방서를 작성하는 경우 활용하기 위한 시공기준이다. 이번에 개정된 건축전기설비공사 표준시방서는 국제규격(NEC)등의 내용을 참조하여 종전 시방서의 수변전설비, 조명설비, 동력설비, 방재전기설비, 예비전원설비, 정보설비 부분에 대한 대폭적인 개정이 이루어졌다.

• The Monthly Technology and Standards
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• s.65
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• pp.28-29
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• 2007

• Journal of the Korea Construction Safety Engineering Association
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• v.3 no.2 s.8
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• pp.88-102
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• 1993

• 건축구조
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• v.9 no.2
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• pp.54-57
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• 2002

• Korean Journal of Construction Engineering and Management
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• v.20 no.3
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• pp.12-21
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• 2019

Specification is an important document for securing safe construction and improving quality as well as the contract document. Currently, the specifications used in modular buildings in Korea are only the construction specification, and most of the contents are used by borrowing the standard specifications of the building, so the contents of the modular buildings can not be reflected and it is contents are similar to the guideline book. The current status of domestic specification for modular buildings is affecting the quality of modular buildings. Therefore, we analyze activity through monitoring the modular process of modular buildings and analyze systematically relationship by applying IDEF modeling with analyzed activity. As result this paper proposes a structure of special specification specialized in modular building through generalization. The major classifications were divided into three stages : factory construction, transportation, and on-site installation. The specification structure was divided into 32 types of construction items from the floor slab assembly of the factory production to the joint finish of the on site installation in accordance with the opinion of experts.

• Proceedings of the Korean Institute of Building Construction Conference
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• 2023.11a
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• pp.127-128
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• 2023

Recently, OSC (off-site construction) construction has been revitalized as a response to the decline in building quality and productivity due to lack of skilled manpower at construction sites, and PC (precast concrete) construction, a representative OSC construction, is insufficiently applied to public housing.This is the situation.In addition, in the case of general contents appearing in standard specifications, the construction standards for quality assurance remain in the 1990s and do not correspond to the current construction environment.In order to improve the quality of PC member joints, we compared and analyzed Korean and Japanese specifications to establish appropriate standards for PC construction quality control, focusing on the quality of grout used in joints.

• JOURNAL OF ELECTRICAL WORLD
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• s.283
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• pp.44-51
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• 2000

21세기 세계시장의 도전에 즈음하여 표준개발에 대한 글로벌 기반구조(Infrastructure)가 변화의 계기를 맞고 있다. 하나는 WTO/TBT 협정의 발효로 세계를 대상으로 제품과 시스템을 생산 및 판매하기 위한 표준 및 시방서의 필요성이 커지고 있다는 측면이고 다른 하나는 지구촌 시민이 사용하는 관련제품과 시스템에 대한 보건, 안전 및 환경을 지킬 필요성이다. 모든 표준이 시발점부터 세계를 대상으로 하는 표준시스템으로 개발이 되었다면 문제가 없었을 것이나 대부분의 국가가 자기 나라 차원에서 표준을 개발하였으므로 국제레벨에서 표준문제를 해결하는 일은 아주 복잡하고 어렵다. 이 글은 미국 국립표준기술원(NIST)이 미국의 표준을 세계화하기위한 기반구조 구축의 정책 방향에 관한 내용을 요약한 것이다. 미국은 세계 유일의 초강대국으로 세계시장에 대한 도전, 제작자와 공급자 사이의 상호 연계성, 지구촌 어느 소비자에게 공급된 제품에 대하여도 보건, 안전 및 환경을 지킬 필요성 등을 목표로, 현재의 미국 제도를 21세기 세계표준으로 정착시키겠다는 전략이다.

• Magazine of the Korea Concrete Institute
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• v.9 no.4
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• pp.155-165
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• 1997

Since the biggest time-dependent prestress loss of reactor containment structure is due to creep of concrete. the creep is one of important structural factors to be considered for the safety maintenance in the containment structure during design. construction and main enance. This paper is about the creep charactoristies of concrete for the reactor containment structure. In this paper, creep test was performed to show the creep characteristics of reactor containment concrete structure made of the type-V cement. Then, in order to evaluate the applicability of creep prediction equations of recently revised Korean Concrete Standard Specification(KSCE-96) and Japanes Concrete Standard Specification. ACI-209. CEB/FIP-90. and HANSEN, creep test results were compared with prediction results obtained from he equations. From the comparisons, it was shown that the equation of th KSCE-96 predicts creep for younger concrete than 1 year, better than the other equations and that all of the equations predicts creep, for older concrete than 1 year, smaller than test. From regression analysis. a creep prediction equation which effectively predicts creep of concrete due to loading after 1year was proposed.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.11 no.4
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• pp.67-79
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• 1991

Geomrtric nonlinearity of axially and laterally loaded reinforced concrete slender columns has been generally considered by use of second order analysis such as $P-{\Delta}$ method. Complex procedure in second order analysis may not be a difficult problem with computer aid, however it has been seldom used in design offices because of the need of carefully decided input data. In lieu of second order analyses, the Korean and the American concrete codes have adopted the moment magnifier method. It is known, however, that this method results in too conservative design in some cases. Accuracy of the moment magnifier method to the experimentally obtained data has been reviewed and an improved method has been proposed for better result.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.1 no.1
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• pp.33-42
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• 1981

Current standard code for R.C. design consists of two conventional design parts, so called WSD and USD, which are based on ACI 318-63 and 318-71 code provisions. The safety factors of our WSD and USD design criteria which are taken primarily from ACI 318-63 code are considered to be not appropriate compared to out country's design and construction practices. Furthermore, even the ACI safety factors are not determined from probabilistic study but merely from experiences and practices. This study investigates the safety level of R.C. flexural members designed by the current WSD safety provisions based on Second Moment Reliability theory, and proposes a rational but efficient way of determining the nominal safety factors and the associated flexural allowable stresses of steel bars and concretes in order to provide a consistent level of target reliability. Cornell's Mean First-Order Second Moment Method formulae by a log normal transformation of resistance and load output variables are adopted as the reliability analysis method for this study. The compressive allowable stress formulae are derived by a unique approach in which the balanced steel ratios of the resulting design are chosen to be the corresponding under-reinforced sections designed by strength design method with an optimum reinforcing ratio. The target reliability index for the safety provisions are considered to be ${\beta}=4$ that is well suited for our level of construction and design practices. From a series of numerical applications to investigate the safety and reliability of R.C. flexural members designed by current WSD code, it has been found that the design based on WSD provision results in uneconomical design because of unusual and inconsistent reliability. A rational set of reliability based safety factors and allowable stress of steel bars and concrete for flexural members is proposed by providing the appropriate target reliability ${\beta}=4$.