• Title/Summary/Keyword: an apartment house

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Evaluation of Elevator Noise level of Apartment Houses through Vibration Measurement (진동측정을 통한 공동주택 엘리베이터 소음 레벨 평가)

  • Kang, Min-Woo;Song, Min-Jeong;Oh, Yang-Ki
    • Journal of Korean Institute of Architectural Sustainable Environment and Building Systems
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    • v.12 no.6
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    • pp.641-654
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    • 2018
  • Elevator noise in apartment houses is one of the factors which prevent the residents from quiet and comfortable life. The elevator noise measurement method [KS F ISO 16032] is introduced from the matching ISO standard, however, it has problems in the application to the actual measurement. To visualize the problems, measurements in an apartment house are conducted, which has been suffering from the elevator noise for a long time. The measurement itself is extremely difficult due to the low sound pressure level of elevator, which is lower than 35 dB (A), and the even higher background noise level. However the vibration levels measured at the same time are relatively less disturbing As a result of vibration measurement, it was found that the vibration is clearly measured on the wall, and presents a high correlation coefficient of over 0.8 with the noise levels measured This shows that the vibration level measured on the elevator walls may be rather reliable numbers than the elevator noise levels in the actual noisy condition of elevator halls and the vicinity.

Analysis of the Weight for the Required Performance Items of Lightweight Wall through the Test-bed and AHP Method (테스트베드 구축과 AHP기법을 통한 경량벽체 요구성능의 중요도 분석)

  • Lee, Hak-Ju
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2015.05a
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    • pp.105-106
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    • 2015
  • As the Long-life certification system is recently introduced in the Housing Law in Korea, it is expected that an application of the lightweight wall panel will be increased in apartment construction as the main wall system. However, the performance criteria for lightweight wall is in the early phase of its action. Therefore, it is necessary to establish the performance criteria properly by investigating performance requirement in the user's perspective. The purpose of this study is to identify of the weight of the required performance items for the lightweight wall in apartment house. To analyze the priority in the performance, an interview survey is performed; after monitering the test-bed of the lightweight walls, user and experts evaluate the performance requirements. The weight of the performance requirement is developed by AHP method.

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A Study on The Brand Image Elements of Housing Cultural Center (주택문화관의 브랜드 이미지 요소에 관한 연구)

  • Kim, Jung-Yoon;Lee, Hyun-Soo
    • Proceedings of the Korean Institute of Interior Design Conference
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    • 2007.11a
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    • pp.26-29
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    • 2007
  • By changing housing market, housing cultural center furnishes information, value added, image of housing. For publicity their unique house, construction companies provide not only concrete and substantial material but also sensible and capacity service through the community space of housing cultural center. The consumer's experience of housing cultural center have an effect on purchase power apartment. The image of enterprise is important to select commodities to consumers. Though main clients are women, housing cultural center has not space concept and aim to concern for them. According to begin women a group of consumers, they have purchasing power in family. Apartment is no exception. Housing cultural center is used as continuous culture space that provide various experiential chance for consumer, especially women by systematize and distinct design detail and feature component. Accordingly, the purpose of this study is an analysis about community space of housing cultural center with the woman marketing based on experience.

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A Study of Natural Infiltration Phenomenon in Apartment Buildings (공동주택 자연침기현상 측정연구)

  • Chung, Hyung-Ho;Song, Jun-Won;Hong, Goo-Pyo;Park, Cheol-Yong;Kim, Jin-Up;Yang, Kyung-Mo;Lee, Bok-Man
    • Proceedings of the SAREK Conference
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    • 2006.06a
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    • pp.944-949
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    • 2006
  • An infiltration was realized as an important part of ventilation to change fresh air with contaminated air in a house. In this study, it was measured the infiltration in new apartment buildings according to Seasons, height etc. We measured the infiltration by using tracer gas method and did for 24hours. To quantify the infiltration, Sulfur Hexafluoride($SF_6$) gas was used. The Constant Concentration was conducted during experimental process and the concentration of the gas was measured with a gas monitor. In the results of the measurement, the infiltration were appeared over 0.6 ACH in winter and about 0.2 ACH in summer and autumn. Also the infiltration were measured more highly at high and low stories than middle stories in winter.

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A Study on the Performance of Noise Level and Airflow Amount of a Kitchen Hood by the Different Conditions of Airflow Path. (레인지후드 덕트설치 조건에 따른 소음 및 풍량특성 연구)

  • Kim, Il-Ho;Kim, Youn-Jae;Lee, Yong-Jun;Lee, Kyu-Dong
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2007.11a
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    • pp.11-14
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    • 2007
  • Noise level and Airflow amount of a kitchen hood are affected by the conditions of airflow path. Thus this study is expected to be used as a basic reference in designing airflow path of apartment housing throughout analysing changes in noise level and airflow amount from the various conditions of airflow path. Noise level generated by the kitchen hood is estimated in a kitchen and a living room of two constructed apartment houses, and an experiment is conducted in an half anechoic chamber to analyze noise level and airflow amount by the different length, diameter and number of windings of a round shaped soft duct which is connected to the kitchen hood. The measured results in apartment houses show that the noise level in both apartments exceeds the NC standard greatly in living spaces. In apartment A, a regular apartment house, the noise level was $NC-65{\sim}75$, $NC-45{\sim}60$ and NC-70, NC-45 in the kitchen and living room with an operation of kitchen hood in 1 and 3 stages. In apartment B, an apartment complex, the noise level was NC-55 and NC-60 in the kitchen and living room with an operation of kitchen hood in 3 stages. In particular, there was an increase of noise level at 125Hz-band resulted from an amplification of sound, which requires adequate measures in noise reduction. The results measured in Half anechoic chamber show 99% of airflow amount increase with the modification of a duct' s diameter from ${\Phi}$ 100mm to ${\Phi}$ 125mm, 37% of airflow amount increase with the modification of a duct' s diameter from ${\Phi}$ 125mm to ${\Phi}$ 150mm, and 173% of airflow amount increase with the modification of a duct' s diameter from ${\Phi}$ l00mm to ${\Phi}$ 150mm. The noise level was lower than the level measured in apartment housing about 20 in NC-value and 11.4 in dB(A)-value, which was interpreted as the effect of the load by the pressure condition at the rear end of the duct. Also, an amplification of sound in 125Hz-band influenced NC-value considerably, therefore effective measure is needed.

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A Study on the Long-term Operating plan of Ventilation System of Apartment House in terms of Energy Performance (공동주택 강제 환기 시스템의 건물에너지 측면에서의 장기적 운영 방안에 관한 연구)

  • Kim, Seung-Chul;Yoon, Jong-Ho;Baek, Nam-Choon;Shin, U-Cheul
    • 한국태양에너지학회:학술대회논문집
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    • 2011.11a
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    • pp.115-123
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    • 2011
  • Because buildings recently built have been highly insulated and highly airtight, it is impossible to emit toxic substances from interior finishing materials only by natural ventilation. Therefore, they cause indoor air pollution and it may threaten the user"s health such as atopic dermatitis, bronchial asthma and (allergic) rhinitis. Domestically, users spend indoors 80 percent of their time of a day. With the increased interest in indoor air quality, the introduction of forced ventilation system for new-built apartment buildings has been legislated. However, toxic substances from indoor are mostly below there commended standard approximately 23 months later. Thus, this study has assumed the status of the apartment buildings 23 months later through a simulation, regarded $CO_2$ as an exclusive indoor air pollution source. In the process of effectively eliminating the $CO_2$, this study has also been conducted on an operating plan that can provide superior performance from the energy side.

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A Study on the Mechanical Ventilation System of Bathroom in Apartment House (공동주택 화장실의 기계 환기시스템에 관한 연구)

  • 함진식
    • Journal of the Korean housing association
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    • v.12 no.3
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    • pp.141-148
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    • 2001
  • To design mechanical ventilation for bathroom of apartment houses where air supply and exhaust are taken into consideration, mock-ups of ventilation systems, widely used in bathroom of apartment houses with an area of 100$\textrm{m}^2$, were made and installed in a laboratory. These ventilation mock-ups were available for control of air supply and exhaust, and the sizes of supply openings were 40cm${\times}$1cm, 40cm${\times}$3cm, and 40cm${\times}$5cm. They were installed at five positions, spaced 45cm at a height of 5cm from the floor. The exhaust fan was designed for its operating voltage to be set to five steps(100V, 130V, 150V, 180V and 220V) in order to control its air flow rates. When the size and position of each supply opening were changed with the wind velocity of the exhaust fan set to the step 5, the ventilation rates were measured and analyzed by the concentration decay method of tracer gas method, in order to present an efficient mechanical ventilation system. The results of the study revealed that the ventilations rates would increase in the presence of supply openings, compared to the absence of supply openings, and that the larger the size of the supply opening, the more the ventilation rates. Therefore, it was found necessary to take air supply into consideration.

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Automated Data Analysis of Floor Plans for the Remodeling of Apartment Housing

  • Seo, Wonseok;Kim, Seongah;Park, Junseok;Kim, Jinyoung
    • International conference on construction engineering and project management
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    • 2022.06a
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    • pp.1059-1066
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    • 2022
  • In 2020, it was estimated that more than 2.4 million households in South Korea are over 30 years old. That is, more than 40% of all houses in Korea are old and that they require proper rehabilitation. The two options to improve poor living conditions are reconstruction and remodeling. Compared to reconstruction, remodeling has advantages in terms of the construction period, cost, and environmental impact. As such, the current Korean regulations are more favorable for remodeling than reconstruction. Typically, several candidate floor plans are presented in the early stages of an apartment remodeling project. Extracting information about bearing walls and other structural elements from the multiple plans to compare those plans quantitatively is one of the essential tasks during the early stage of a project. To cope with this task, an automated data extraction method for walls and slabs from before and after remodeling plans is developed. Through the developed program, load-bearing walls, non-bearing walls, slabs, and weight changes after remodeling can be analyzed and visualized in a fast and automated manner.

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Correlation between Board Mortar and Defect Occurrence Rate in Apartment Bathroom Wall Tile (공동주택 욕실 벽타일 뒤채움과 하자발생량의 상관관계분석)

  • Hong, Ki;Nam, Dong-Hee;Koo, Kyo-Jin
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2023.11a
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    • pp.55-56
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    • 2023
  • The number of defect disputes occurring in apartment houses is increasing year by year, and among them, disputes caused by defects in tiles account for 28.2% of the total, which is an important defect in tiles. A representative tile defect in the defect dispute is the lack of tile backfill. Another dispute occurred that the standards for each organization are different as the 100% standard of the Ministry of Land, Infrastructure and Transport's building construction standard and 80% standard of the Architectural Institute of Korea's Building Technology Guidelines. In this study, it was analyzed the relationship between the amount of tile backfill and the amount of tile defects based on 100 defect litigation court appraisal documents. It was observed that the amount of defect in tile works tended to decrease as the amount of tile backfill increased. By presenting an appropriate amount of mortar to fill behind tiles in a defect dispute, the effect of reducing the defect dispute can be expected.

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Size Distribution Characteristics of Particulate Matter Emitted from Cooking (조리과정에서 생성된 미세먼지의 크기분포 특성)

  • Joo, Sang-Woo;Ji, Jun-Ho
    • Particle and aerosol research
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    • v.16 no.1
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    • pp.9-17
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    • 2020
  • The characteristics of particulate matter made from daily cooking at a Korean residential apartment house with three dwellers had been investigated for about 3 months. All data were recorded by an optical particle counter every minute at the kitchen. Types of cooking such as boiling, frying, and grilling that performed in the house were listed. Boiling only was used in 32% cases among total 234 meals. Frying and grilling were 14% and 11%, respectively. From an initial indoor particulate matter smaller than 10 ㎛ in diameter, the increases due to cooking are reported by size. In case of boiling, PM at 1-10 ㎛ size and under 1 ㎛ size little increased. Normally, particles from oil or combustion in a process of frying or grilling increased indoor PM. In a case of grilling, particle mass concentration in a region of 1-10 ㎛ in diameter increased as much as 295 ㎍/㎥. Mass concentration of particles smaller than 1 ㎛ increased as much as 33 ㎍/㎥.