• Title/Summary/Keyword: an apartment house

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An Experimental Study or the Prediction Method of Floor Impact Sound Insulation Performance in Apartment House Using Impedance Method(II) (임피던스법을 이용한 공동주택 바닥 충격음 차음성능 예측방법에 관한 실험 적 연구(II) - 경량 표준충격원을 중심으로 -)

  • 김재수;장길수;김선우
    • Journal of KSNVE
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    • v.2 no.1
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    • pp.21-31
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    • 1992
  • In the previous paper, we report a practical floor impact sound level prediction method for a heavyweight impact source(Tire), soft impact source such as children jumping and running. According to these results, the calculated value and the measured value correspond comparatively well, regardless of differences in the floor structures. And the floor impact sound for a heavyweight impact source, soft source was strongly influenced by structural factors such as floor slab stiffness and peripheral support conditions. But the floor impact sound for a light impact source (Tapping machine), hard impact source was influenced by resilient layers, composed of multi-layer in floor structures. Thus, In this paper, 4 actual floor structures, all with differing resilient layers, were calculated using impedance method. When these calculation values were compared with the measured values, approximately all the values fell with one rank of the sound insulation grade, reference curve(L curve) by the JIS standard. So, a sample of measured values and calculated values from floor structures is presented to show the accuracy and appropriateness of the impedance method in domestic.

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Contemporary Space Design Trends on the Floor Plan Analysis of Rural Houses in So-yang Munhwa Village (소양 문화마을 주택의 평면 특성을 통해 본 최근 농촌주거의 공간 디자인 경향)

  • Choi, Byung-Sook
    • Journal of the Korean housing association
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    • v.17 no.6
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    • pp.65-72
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    • 2006
  • This study was to and out contemporary space design trends of rural houses in So-yang Munhwa village by analyzing their floor plan shapes and space relations & elements of floor plans. There were built 71 houses in that village but it were possible to collect housing data, floor plans & general building records of 41 houses, from house register. By analyzing those data, findings were as follows : 1) Floor plan shapes of rural houses had a tendency to be diverse, various form of 'ㅋ' than simple form of 'ㅡ'. 2) Room-Living-Room, 3 bay arrangement was very strong trends, and traditional planning characteristics that the openness of living space was keeping. 3) Anbang(master bedroom) and living space were important, so two spaces were set forth of floor plan and Anbang with a bathroom were often showed. 4) DK space and its relation to other spaces were important factor to classily 2 floor plan types of them. 5) DK(dining kitchen) space had an openness from back entrance and DK were separated from public spaces L.D.K. Utility or balcony/veranda spaces as a support space of kitchen were planned in rural houses, and they were influenced from apartment houses or urban houses.

Analysis on Usage of Digital Home Appliance in Spatial Context (디지털홈기기 사용실태에 관한 사례조사 연구 - 생활공간 중심으로 -)

  • Do, Yun-Hee
    • Proceedings of the Korean Institute of Interior Design Conference
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    • 2004.11a
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    • pp.179-180
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    • 2004
  • In the information society, individual, enterprise and nation must be equipped with environmment and competence with which they can acquire useful information anytime and anywhere to process and utilize it in required form. Therefore, this study intends to investigate how digital TV, refrigerator and computer are laid out in the residential space in terms of life space, analyze the preference of residents an d forecast the preferred functions of the products to be introduced in the future. To build frame for making questionnaire tool of this survey, 3 households of the first constructor among the top-ranked constructors in the first half of 2004 were chose and in-depth interview was made from April 12 to April 17. On the basis of result of preliminary survey obtained by this process, the questionnaire was revised and supplemented. Targeting those living at the apartment house in Seoul and constructors ranked in top-four in the order of construction of the first half of 2004, I selected 3 households for each group in the range of 30$^{\sim}$40 pyung. Twelve cases were surveyed from April 19, 2004 to June 5, 2004. First, TV will continue playing the role of central entertainment mustering family at one place rather than separating them to each room. Second, in the case of refrigerator, the function is being subdivided, making 2 types, refrigerator and kimchi refrigerator indispensable, which was in just unit in the past Third, while computer was usually placed in the individual bedroom,

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A Study on Changes in Characteristics of Drainage Noise from Water Closet Washing (대변기 세정시 발생하는 배수소음의 특성변화에 관한 연구)

  • Soul, Soo-Hwan;Jung, Chul-Woon;Kim, Jae-Soo
    • Korean Journal of Air-Conditioning and Refrigeration Engineering
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    • v.19 no.11
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    • pp.789-796
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    • 2007
  • It has been noted, in case of the apartments in collective form, the drainage noise from cleaning of toilet causes many problems in the basement and adjacent rooms, mainly hampering the pleasant housing environment. The problems are increasingly raised by civil complaints with the public offices. Therefore, if the drainage noise generates when wash out of toilet bowl is grasped how the characteristics change according to the sorts of drainpipe, it is considered that the establishment of an effective sound insulation countermeasure could be possible when a civil petition against the drainage noise of apartment house is submitted hereafter. On such viewpoint, this study measured and analyzed the characteristics of drainage noise per the type of drainage pipe, according to KS A ISO $1996-1{\sim}3$, with the horizontal branch pipe and riser pipes in the drainage noise experiment chamber which has the characteristics of the anechoic room. In the result, the pipe type with excellent noise reduction function. The result of this study is considered to become available as fundamental data, to take actions on reduction of drainage noise of the ceiling piping method.

A Study of Safety Design of Sound Absorbing Structure and Development of Materials To Reduce living Noise (생활소음 저감을 위한 흡음소재 개발과 흡음구조의 안전설계에 관한 연구)

  • 허성관;최종탁
    • Journal of Korea Society of Industrial Information Systems
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    • v.7 no.1
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    • pp.34-41
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    • 2002
  • There m many noise sources in living environment. Especially, noise that happen in apartment or tenement house may make neighborhood serious troubles. Thus, the development of new materials to reduce and improve the living noises is required. During past decade, various methodologies have been developed and researched to reduce and improve the living noises. However, there are many problems to apply these methodologies to practical our environment. In this thesis, we develop the new artificial material supporting high porous materials and lower pressure density to improve the problem caused in the safety design and sound absorbing material. To prove the efficiency of the developed methodology, we compare our methodology with conventional methodologies and also suggest an alternative methodology to contribute quiet life environments.

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An Real Scale Fire Reproduce Experiment on Apartment House (공동주택의 실규모 화재 재현 실험)

  • Yoo, Yong-Ho;Kweon, Oh-Sang;Kim, Heung-Youl;Choi, Young-Hwa;Yoo, Moung-Youl;SeoMoon, Soo-Cheol;Rie, Dong-Ho
    • Proceedings of the Korea Institute of Fire Science and Engineering Conference
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    • 2010.10a
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    • pp.159-162
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    • 2010
  • 본 연구에서는 화재위험성이 높은 공동주택을 대상으로 실규모의 화재 재현 실험을 실시하였다. 여러 가지 발화 요인중 발생 빈도가 높은 6가지를 선정하여 재현실험을 실시하였으며, 실험결과를 토대로 화재감식 및 화재위험성을 분석하고자 하였다. 실험 결과 발화 후 약 4분이 경과후 화재가 빠른 속도로 성장하다가 5분경에 이르면서 내부로 화재가 완전히 전이 되는 것을 확인하였다. 화재시 발생되는 일산화탄소 농도는 최대 8200 ppm으로 측정되어 유독가스로 인한 질식사의 위험도 매우 높음을 보여주었다. 또한, 화재 현장의 화재감식을 실시함으로써 화재조사관의 현장 감식능력을 배양하고 화재조사경험 및 정보 공유를 위한 실질적인 기회를 제공하고자 하였다.

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Representations of Vibration Embody Formula based on the Diffusion Field Paradigm about Interlayer Noise (층간소음을 확장음장 관점에서 본 진동체화식의 표상)

  • Kim, Hwang Jun
    • Smart Media Journal
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    • v.8 no.2
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    • pp.80-85
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    • 2019
  • Generally, interlayer noise is measured in decibels (A) in terms of free field. In this paper, we propose a measurement method of interlayer vibration acceleration in the diffusion field perspective. The proposed method can represent a vibration-embodied formula similar to the sensitivity of earthquake intensity when the natural vibration of apartment house is measured by acceleration with its average value of $20mm/s^2$ represented by an the geometric progression of radix. Based on this theory, this paper proposes a method to show the optimal user experience (UX) by applying the interlayer vibration acceleration of the epicenter to the system of human - computer interaction (HCI).

A Research in the Characteristic of Arthritis Patienth (관절염환자(關節炎患者)의 특성(特性)에 대한 조사(調査) 연구(硏究))

  • Kang Jeam-Dug;Nam Chul-Hyun;Kim Gi-Yeol
    • Journal of Society of Preventive Korean Medicine
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    • v.1 no.1
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    • pp.149-165
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    • 1997
  • In order that, investigating the feature of patients suffering arthritis, analysing its contents, and grasping a Primary factor affecting it, I might offerbasic datas which could help to plan and perform healthy affairs to thake precautions beforehand, I have investigated, analysed, and studied a total of 320 patients suffering arthritis, who have received physiotherapy in hospital located in Teaegu area for five months, from November 1 1995 to March 30 1996, of which summary and conclusion is this. 1. The general feature of patients in investigative objects In the distribution of the distinction of sex, men accounted for 26.9% and women, for 73.1%, and, in the fistribution of age, 60-year-old or more, most for 27.2% and from 20 to 29 years old, least for 14.0%. In the distinction of a vocation, housewives most accounted for 34.7% and students(jobless men), least for 19.3%. In the distinction of a matrimonial state, married persons most accounted for 76.7% and people living alone(divorce, separation by death, separation), least for 11.4%. In the distinction of an economic state, the middle classes most accounted for 73.5% and the upper classes, least for 2.9%. In the distinction of their academic careers, graduates of a primary school most accounted for 26.9% and graduates of university, for 14.1%, of which patients, having the ability to decode the national language, reached to 11.3%. In the distinction of the house form, people living in independent houses most accounted for 76.4% and residents in apartment(having an elevator), least for 9.4%. 2. In the distribution of the recurring state in the distinction of the feature, the recurring group was more than the group of patients falling that ill at first as 62.2% and in the distinction of the feature of the recurring group, the recurring group turned high in case of men being from 50s to 60s years old or more, people living alone (divorce, separation by death, separation), students (joblessmen), people working in farming, stockbeeding, forestry, fisheries, a simple labour, graduates of a primary school I having the ability to decode the national language, the upper classes, people part two years since they begined to suffer arthritis, people who had members having ever experienced arthritis among families. 3. In the distribution of arthritis on the distinction of bodily pars, a knee articulation most accounted for 50.2% and the articulation of fingers, for 8.8%, wile the simultaneous, several parts (multiple) accounted for 35.1%. In the distinction of the feature, arthritis of a knee turned high in case of men being from 20s to 30s years old, unmarried persons, people having academic careers of university, the middle classes, residents in apartment (having stairs). In the dictnction of a feature the case of several parts (multiple) turned high in case of women being from 50s to 60s years old or more, people living alone (divorce, separation by death, separation), people having the ability to decode th. national language, the graduates of a primary school, the upper classes, residents in apartment (having elevator). 4. In the distribution of arthritis on e distinction of a contracting term, two years or more most accounted for 51.6% and the case of contacting from one year to two years, for 15.3%. Analysing the distinction of the feature, the case of two years or more turned high in case of women being from 50s to 60s years old or more, people living alone (divorce separation by death, separation), the upper classes, people having the ability to decode the national language, residents in apartment (having elevator). 5. In the distribution of an treatment institution before patients came to help, their not curing most accounted for 39.1%, general, orthopedic, neurological surgery (physical therapy), for. 20.0%, and th. therapy of Chinese medicine (acupuncture, moxacautery, Chinese medicine), for 17.5%, and a pharmacy (medical therapy), for 13.4%. The case of patients not curing, in the distinction of a feature, turned high in case of men 20s years old, unmarried, the lower classes, people having academic careers of university, residents in apartment (having elevator). 6. In e distribution of the extent of satisfaction with treatment, common most accounted for 54.4% and some satisfaction, for 32.8%. The case of common, in the distinction of a feature, turned high, in case of men living alone from 50s to 60s years old (divorce, separation by death, separation), married persons, the upper classes, people having academic careers of university, residents in independent house, residents in apartment (having elevator), 7. In the distribution of the degree of knowledge of the cause of arthritis, patients knowing that the cause is to use very much a articulation in normal times most accounts for 60.1%, and patients knowing the state of short nutrition as a cause, for 2.5%. The case of patients knowing that the cause is to use very much in normal times, in the distinction of a feature, turned high in·case of ment being 20s and 60s years old or more, unmarried persons, e lower classes, people having the ability to decode. the national language, people having academic careers of university, residents in apartment (having stairs), 8. In the distribution of the state of physical exercise before arthritis contracted, patients exercising very much on the whole most accpimend for 40.3%, and patients not exercising, for 34.7%. The case of patients exercising very much on the whole, in the distinction of the feature, turned high in case of men being from 50s to 60s years old or more, people living alone(divorce, separation by death, separation), the lower classes, people having the ability to decode the national language, graduates of a primary school, residents in apartment (having elevator). 9. In the taste of patients suffering from arthritis, while the group of patients falling that ill at first and the recurring group didn't smoke cigarets, during alcohol and coffee on the whole, and the group of patients falling once again that ill drank a cup of distilled linquor and three cup of coffee or more on the whole per one day, and the group of patients falling that ill at first liked sort of vegetables and the recurring group liked very much sons of vegetables and fresh and meat in their loving food normal times. 10. Analysing the distribution on the dining table used by patients and the structure of a powder room, at first, in the structure of a powder room, the group of patients filling that ill have a toilet stool using as their sits, and a Bush toilet on the whole, and the recurring group, a toilet stool using as their sits and conventional type, and in the structure of a dinning table, the group of patients falling that ill at first and the recurring group turned high, each as 66.9% and 6.3%, who have a dining table carring here and there. 11. In the distribution of patients of arthritis in relation to stress, the case that they feeled severly symptoms of arthritis when thay got stress, turned high, each, as 78.6% in the recurring poop, and the case not knowing, as 61.5% in the first group. In the extent of stress normal times, the case that they got much stress on the whole turned high, each, as 72.4% in e recurring group, and the care that got less stress on the whole, as 60.0%. 12. In the distribution on the distinction of symptoms and impedimental extent, the recurring group turned high in each variable. Analysing the feature of the recurring group, in the distinction of symptoms, the case that they fooled much that the node of an articulation is stiff, turned high, as 71.6, and in the distinction of treatment before. patients came to helpk, the theraphy of Chinese medicine (physical theraphy), as 84.4%, the theraphy of Chinese medicine (acupuncture, moxacautery, Chinese medicine), as 73.2%, and in the distinction of the satisfing extent on treatment, the case of comman, as 72.3%, and in the cause of arthritis, the case not recruiting their health after a birth, as 68.5%, and the case not recovering wholely an articulation having got hurt, as 62.8%, and in the state of physical exercise before they begined suffering from arthritis, the case exercising very much on the whole, (as 74.2%), and in the extent of subjective impediment, the case of not being able to act almost, as 66.7%, the case of acting but feeling some hard, as 66.3%. 13. The correlation in variables in relation to arthritis Analysing realted variables, the recurring frequency showed correlation with such as the extent that patients got stress normal times, and the exercising state before suffering arthritis, and showed contra-correlation with academic careers, the wights, coffee. The cigaret, e loving food of taste, showed corralation with the weight, stature, alcohole as the loving food of taste. On the basis of this result medical members of heal, who are related to the regular education, public education or development of this program, should be concerned to prevent orthris.

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Urban Area Building Reconstruction Using High Resolution SAR Image (고해상도 SAR 영상을 이용한 도심지 건물 재구성)

  • Kang, Ah-Reum;Lee, Seung-Kuk;Kim, Sang-Wan
    • Korean Journal of Remote Sensing
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    • v.29 no.4
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    • pp.361-373
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    • 2013
  • The monitoring of urban area, target detection and building reconstruction have been actively studied and investigated since high resolution X-band SAR images could be acquired by airborne and/or satellite SAR systems. This paper describes an efficient approach to reconstruct artificial structures (e.g. apartment, building and house) in urban area using high resolution X-band SAR images. Building footprint was first extracted from 1:25,000 digital topographic map and then a corner line of building was detected by an automatic detecting algorithm. With SAR amplitude images, an initial building height was calculated by the length of layover estimated using KS-test (Kolmogorov-Smirnov test) from the corner line. The interferometric SAR phases were simulated depending on SAR geometry and changable building heights ranging from -10 m to +10 m of the initial building height. With an interferogram from real SAR data set, the simulation results were compared using the method of the phase consistency. One of results can be finally defined as the reconstructed building height. The developed algorithm was applied to repeat-pass TerraSAR-X spotlight mode data set over an apartment complex in Daejeon city, Korea. The final building heights were validated against reference heights extracted from LiDAR DSM, with an RMSE (Root Mean Square Error) of about 1~2m.

A study on the Household consumption of Tap Water and the Decreasing Rate of lpcd by the increase in the Number of Residents in Seoul (서울시 가정에서의 수돗물 사용량과 거주인수 증가에 따른 1인 1일 사용량의 감소변화에 관한 연구)

  • Kim, Kap-Soo;Yang, Ji-Hee;Hwang, Seong-Hwan
    • Journal of Korean Society of Environmental Engineers
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    • v.29 no.1
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    • pp.89-97
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    • 2007
  • This study analyzed the lpcd of 25 districts in Seoul using random samples of residents in Seoul selected by computer selecting system. By classifying these samples according to the type of houses(tenement houses, apartment houses and detached houses), the type of districts, the effects of the number of residents in a house and the type of the houses on tap water use are analyzed. From these samples, the consumption of tap water per capita day(lpcd) in Seoul can be estimated statistically. It is also observed that the lpcd decreases as the flat-dwellers increase. As the dwellers increase from 1 to 2, from 2 to 3, from 3 to 4 and from 4 to 5, lpcd has decreased by 47.6%, 20.8%, 16.9%, and 9.0%, respectively. The regression curve, which fits the tendency of decrease well, is represented by an power function. And the estimated linear regression equation shows that the average decreasing rate of lpcd as flat dwellers increasing is 12%.