• Proceedings of the SAREK Conference
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• 2009.06a
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• pp.485-490
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• 2009

The present study has been conducted to accomplish the investment and analysis, to make the construction manuals, to draw the standards, and to build quality and standards informations of the plumbing/drainage facilities materials. The application plan and the anticipation effect of this results include as follows. (1) The investment and analysis of the plumbing/drainage facilities materials is able to suggest the technology trends and the trends analysis in the construction materials. (2) The quality and standards informations of the plumbing/drainage facilities materials are possible to be the construction faculty and the cost/energy reduction in the construction materials. (3) The standards methods of the plumbing/drainage facilities materials are useful for the reliability guarantee and quality escalation in the construction materials. (4) The standard manuals of the plumbing/drainage facilities materials are applied to the specifications in the construction materials.

• International conference on construction engineering and project management
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• 2022.06a
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• pp.776-783
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• 2022

Since Mechanical, Electrical, and Plumbing(MEP) routing is a repetitive and experience-centered process that requires considerable time and human resources, if automated, design errors can be prevented and the previously required time and human resources can be reduced. Although research on automatic routing has been conducted in many industries, the MEP routing in AEC projects has yet to be identified due to the complexity of system configuration, distributed expertise, and various constraints. Therefore, the purpose of this study is to identify the target subjects for MEP routing automation and the constraints of each subject. The MEP design checklist provided by a CM company and existing literature review were conducted, and target subjects and constraints were identified through process observation and in-depth expert interviews for five days by visiting a MEP design company. The target subjects were largely divided into six categories: air conditioning plumbing, air conditioning duct, restroom sanitary plumbing, heating plumbing, and diagram. The findings from interviews show that work reduction and error reduction has the greatest effect on air conditioning plumbing while the level of difficulty is the highest in air conditioning duct and restroom sanitary plumbing. Major constraints for each subject include preventing cold drafts on air conditioning pipes, deviation in ventilation volume in air conditioning ducts, routing order on restroom sanitary plumbing, and separation distance from the wall on heating plumbing. In this way, subjects and constraints identified in this study can be used for MEP automatic routing.

• KIEAE Journal
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• v.7 no.2
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• pp.57-62
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• 2007

Recently Among indoor noises plumbing noise from supply and drain water pipe is being pointed out as a annoying noise following to floor impact noise, and it is increasing the rate to point the noise due to the following several reasons: water pressure, vibration by fabricated structures and direct noise propagation from upper floor through ceiling This study aims to analyse the characteristics of toilet stool plumbing noise in apartment bathroom which are generated by crossing plumbings and elbows. And it analyse the effect of noise reduction by soundproofing and insulations which are covered at crossing plumbings. And also analyse the characteristics of noise about a type of elbows, crossing plumbing and result of dB(A). At last it provide a fundamental data for the purpose of reduction of plumbing noise in apartment.

• Journal of the Korean housing association
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• v.27 no.4
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• pp.59-66
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• 2016

The purpose of this study is to examine the necessity of 'emergency plumbing equipment for preventing the spread of water leakage'. It reviews social and economic costs when there is spread of water leakage and finds out that those are enormous. Expansion of water leakage causes conflicts between neighbors, economic loss and inconvenience from damages on facilities like elevator and power failure. Next, it examines the inability of existing plumbing equipment when it comes to spread of water leakage. Newly defined 'Surface Leakage' means rapid leak in the surface, and 'Internal Leakage' means seeping out slowly and gradually buried in the pipeline. It will also be analyzed by separating the concept of a leak in the two concepts of a 'Surface Leakage' and 'Internal Leakage'. It proposes emergency plumbing equipment for preventing the spread of water leakage as a solution for the expansion of water leakage. It explains general concepts of emergency plumbing equipment for preventing the spread of water leakage. It will also examine the effectiveness of the user by performing a survey of 420 multi-level building their opinion on the effects of an emergency plumbing equipments to prevent the spread of water leakage.

• The Journal of the Acoustical Society of Korea
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• v.9 no.4
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• pp.45-54
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• 1990

As the results of actual survey of indoor noise in apartment houses, it represents that plumbing noise and floor impact noise are most unsatisfactory factors to inhabitants. In this paper, the actual condition of plumbing noise in apartment houses was measured and the methods of plumbing noise reduction are suggested. For these suggestions, the actual survey of plumbing noise and the model test on structure-borne sound of water supply pipe and drain sound were carried out.

• Journal of the Korean Institute of Rural Architecture
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• v.14 no.3
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• pp.25-32
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• 2012

Traditional folk houses in Yongdong, Gangwon province play important roles in figuring out natural, human, and social value in the past time including housing life. However, according to the introduction of electric or plumbing equipment in housing life styles, many conventional architectures have been changed by installations of new electric or plumbing equipment, convenience facilities, and etc. Therefore, this study aims to make basic data to prepare for standardized installations of the electric or plumbing equipment, and convenience facilities by surveying of the present installation status, such as electric lights, outlets, switches, wiring, pipe laying, or monitoring devices for crime, disaster prevention facilities, and home appliances etc. Additionally, this paper is related to the meaning and usage, which are connected with the electric or plumbing equipment installations of the traditional folk houses to be prepare for the proper solutions between preservations of the original form and convenient lives for residents.

• Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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• 2006.05a
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• pp.1421-1424
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• 2006

Recently Requirement of indoor environment is increased in APT. Among indoor noises of APT, noise of plumbing system in bathroom is very serious problem except of floor impact noise. Plumbing system with wan hanging unit make a good grade and recognition in rating noise of bathroom in grade of house rating. But it is hard to find a data which are measured in APT built. In this study, the effect of noise reduction is checked by measuring the noise of plumbing system with wall hanging unit that is built. As result the upper household's Peak sound level is measured 80dB(A), the under household's peak sound level is measured 40dB(A).

• The Magazine of the Society of Air-Conditioning and Refrigerating Engineers of Korea
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• v.28 no.4
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• pp.257-264
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• 1999

96년판 NSPC(National standard plumbing code)의 내용 중 급수 및 배수 관경을 결정하는데 사용하는 기구 급배수부하 단위표가 이전에 발행된 것과 내용이 많이 수정되어 소개코져 한다. 주된 변경 내용은 절수형 위생기구 사용에 따른 급배수 부하 단위 변경, 건물용도별 상세한 내용 분류 및 새로운 위생기구의 추가 등이다.

• KIEAE Journal
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• v.9 no.2
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• pp.99-106
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• 2009

The noise in apartment buildings are major factor that determine the quality of indoor noise environment. Particularly, the noise from children's running footsteps and plumbing noise have caused the residents who live in decrepit apartment houses to uncomfortable environment. And as time go by, sound performance are getting worse according to the aging of the facilities. So this study deals with the plans to improve the sound performance of decrepit apartment house. To compare the noise reduction, we measured the heavy-weight impact sound level and plumbing noise level before and after changes the measurement conditions. As the results of measurements, the heavy-weight impact sound level were decreased when stiffness reinforcement were installed on slab. Especially the sound level were decreased 2.1-7.6dB in 50-80Hz of low frequency range. Instead of PVC pipe system, cast iron pipe and triple elbow drain pipe systems were installed. Noise level were decreased 15dB(A) in 250Hz. Noise level of pipe system's on the slab is less than under slab one. On the contrary water saving stool showed increasing the noise level.

• Journal of the Korea Institute of Building Construction
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• v.22 no.2
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• pp.195-205
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• 2022

This paper aims to propose a cost-based mechanical, electrical, and plumbing(MEP) coordination process using building information modeling(BIM). The proposed process can help project participants eliminate identified clashes between the MEP elements, analyze trends relating to MEP costs during the coordination process, and share their findings. MEP quantity-related information extracted through BIM was integrated with the cost database and schedule information. To check the applicability of the proposed process, it was applied to a construction project in South Korea. Through the application of the proposed process, MEP-related cost was reduced.