• 한국도로학회논문집
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• 제18권2호
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• pp.1-9
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• 2016

PURPOSES : The performance properties (indirect tensile strength, rutting resistance, and resilient modulus) of recycled aged CRM mixtures and their correlation with Superpave binder properties (viscosity, high failure temperature, $G^*sin{\delta}$, and stiffness) were investigated. METHODS: A series of Superpave binder tests was performed by using a rotational viscometer, DSR, and BBR to evaluate the performance properties. In addition, the CRM mixes were artificially aged through accelerated aging processes, and their properties were evaluated. The correlation between the properties of recycled aged CRM binders and the engineering properties of recycled aged CRM mixtures was experimentally determined. RESULTS : The rut depth values decreased and the ITS values increased with increasing high failure temperature. In general, the resilient modulus properties seemed to be poorly correlated with the high-temperature values, regardless of the aggregate source. CONCLUSIONS: The recycled aged CRM binders and mixtures can lead to satisfactory performance, and the properties of these binders are strongly correlated with the engineering properties of the mixtures.

• Structural Engineering and Mechanics
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• 제90권5호
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• pp.493-504
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• 2024

This paper presents the methodology and results for the investigation of the structural safety of 40 aged underground water tanks to support the weight of photovoltaic (PV) systems that were supposed to be placed on their roof reinforced concrete (RC) slabs. The investigation procedure included (1) review of available documents; (2) visual inspection of the roof RC slabs; (3) carrying out a series of nondestructive (ND) tests; and (4) analysis of results. Out of the 40 tanks, eleven failed the visual inspection phase and were discarded from further investigation. The roof RC slabs of the tanks that passed the visual inspection were subjected to a series of ND tests that included infrared thermography, impact echo, ultrasonic pulse velocity (UPV), Schmidt hammer, concrete core compressive strength, and water-soluble chloride content. The NDT results proved that eight more tanks were not suitable to support the PV systems. Based on the results of the visual inspection and testing, a probabilistic decision-making criterion was established to reach a decision regarding the structural integrity of the roof slabs. The study concluded that the condition of the drainage filter was essential in protecting the tanks and its intact presence can be used as a strong indication of the structural integrity of the roof RC slabs.

• 한국건설관리학회:학술대회논문집
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• 한국건설관리학회 2001년도 학술대회지
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• pp.439-443
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• 2001

1970년대 이후 결제의 급속한 성장과 주택보급 확대 정책 등으로 단기간에 많은 건축물이 건설되었지만, 유지관리가 체계적으로 이루어지지 않아서 노후도가 심각한 실정이다. 민간시설의 경우 경제적 이익 실현 둥을 목적으로 노후도 및 내용연수에 상관없이 철거 후 재건축함으로써, 막대한 자원의 낭비와 건축 폐기물로 인한 환경오염을 초래하고 있다. 최근에는 재건축에 대한 법률이 강화되면서 노후 공동주택에 대한 재건축은 줄어들고 리모델링에 대한 관심이 커지고 있다. 본 논문은 건축물의 합리적인 리모델링을 유도하기 위하여 노후 건축물을 철거할 것인지 또는 리모델링 할 것인지를 개략적으로 판단할 수 있는 의사결정 시스템을 제안한 것이다. 이 시스템은 건축물의 내용연수 및 사용연수를 고려한 수명 평가와 구조 안전성·설비 노후도 및 거주환경 성능을 포함한 노후도 평가로 구성된다.

• 한국건설관리학회논문집
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• 제8권2호
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• pp.118-126
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• 2007

최근 친환경건축물인증제도, 주택성능등급표시제도를 비롯하여 실내공기환경에 대한 기준, 친환경상품인증기준 등 환경관련 제도 및 규정이 마련되면서 공동주택의 신축 및 리모델링 공사에 이에 대한 고려가 필요한 상황이다. 특히 공동주택 리모델링 공사는 거주자가 사전에 정해진 상태에서 공사를 진행하므로 이들에 대한 의견수렴과 사용되는 소재에 대한 요구분석이 신축에 비해 중요하다는 특성이 있다. 하지만 현재 국내에서 시행 중에 있거나 최근 완료된 리모델링 공사의 시공자는 친환경 소재 적용에 대한 거주자의 적극적인 의견수렴 과정이 미비하였고, 친환경상품인증원의 최우수 등급을 받은 친환경 제품을 거주자의 요구에 의해 적용한다기 보다는 공동주택의 홍보의 일환으로 사용하고 있는 실정이었다. 또한 공동주택 리모델링 거주자는 친환경 제품의 인증기준에 대한 이해가 부족하여 친환경 제품의 등급을 맹목적으로 신뢰하는 경우가 있었고 적용되는 친환경 소재에 대한 요구가 매우 정성적인 특징이 있다. 따라서 공동주택 리모델링 거주자의 친환경 소재에 대한 요구사항을 조사하고 이를 정량적으로 분석하여 만족도를 극대화 할 수 있는 친환경 소재를 리모델링 공사에 적용하여야 한다.

• 한국주거학회논문집
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• 제14권4호
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• pp.57-67
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• 2003

The purpose of the study is to propose the basic data for an aged residential building suitable for Korean environment and it is based on the outcomes of investigation on The Aged Care Residential Service in Australia including the scale and arrangement of private zone and specific characteristics of each compartment. The brief outcomes of the research are follows as. - The Aged Care Residential Services have been functionally running divided into Nursing home, Hostel and Retirement Village by the classification standard of the residential classification scale. - Single bed rooms have 75% of total residential area and the square of single bed room is about $20\textrm{m}^2$and that of two-bed room is about $31\textrm{m}^2$. - There are two types of ensuite such as one single-bed room and one ensuite and bed room for two or three persons and ensuite type. The square of ensuite varies as single is 50∼60%, single for public is 25∼30%, and double for public is 15∼20%. - Assisted bathrooms are generally located in the middle of building and it is suggested to be occupied about $1.25\textrm{m}^2$ per person. Sitting rooms are two types such as room type whose square has about $12\textrm{m}^2$ and a lounge type has $16\textrm{m}^2$.

• 대한건축학회논문집:계획계
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• 제35권2호
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• pp.139-146
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• 2019

The purpose of this study is to derive an improved method for analyzing old buildings with risk of collapse using public big data. Previous studies on the risk of building collapse focused on internal factors such as building age and structural vulnerability. However, this study suggests a method to derive potentially collapsible buildings considering not only internal factors of buildings but also external factors such as nearby new construction data. Based on the big data analysis, this study develops a system to visualize vulnerable buildings that require safety diagnosis and proposed a future utilization plan.

• 대한가정학회지
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• 제44권9호
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• pp.103-117
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• 2006

There is no compulsory administration on the facility status for silver medical welfare facilities under the current legal regulations based on the welfare law of the aged nor is there standardized space allotment conditions that considered the physical psychological and pathological characteristics of the aged. Hence, welfare facilities are presently being constructed under general architectural laws. (Ed- paragraphs combined here) Therefore, standardized space allotment conditions should be planned soon for the aged in welfare facilities. (Ed- paragraphs combined here) In this study we examined the situation of space allotment through both blueprint analysis and interview with building supervisors. However, in future studies, we will focus on space insufficiency situations and the needs of the aged residents in welfare facilities.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2015년도 춘계 학술논문 발표대회
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• pp.240-241
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• 2015

As buildings and especially eco-friendly facilities are increasing, maintenance of the aged buildings are interested by many maintenance companies. Therefore, a lot of companies are increasing by the maintenance form. These Earned Value should try to minimize the increasing forms. Therefore, this study has an effort to gather data related to earned value of building facility maintenance and analyze the data in terms of local dimension, used duration dimension, building types dimension and so on in order to prevent the building deterioration.

• 한국응급구조학회지
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• 제10권1호
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• pp.41-49
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• 2006

Purpose: It can be said that the aged belong to the group vulnerable to safety accidents. The purpose of this study was to investigate safety accidents to old people and provide basic data to prevent them from being in a safety accident. Result : 1. The number of the aged of traffic accident fatalities per 100,000 persons was 57.8, which was significantly higher than other OECD countries. 2. trauma for the aged, falling accounted for 60.6%, which was relatively higher than other wounds, probably because of decreased capacity of movement and reduced faculty of sensation. 3. accidents to the aged at home, 43.9% occurred in a room, which shows great risk of safety accidents to the aged in a room. 4. the aged generally showed negative awareness of social safety. Suggestion : 1. it is necessary to provide regular education about accidents through the mass media and at social welfare facilities in order for aged people to consolidate safety consciousness repeatedly. 2. it is necessary to make a brief and clear guide to prevention of accidents. 3. the Ministry of Construction and Transportation and the Ministry of Health and Welfare should give priority to designing a building for aged people and authorize construction according to the standards for establishing safety facilities for the aged. 4. it is necessary to change social consciousness. since transportation accidents can be caused not by aged people's insufficient safety consciousness but by that of all the people, it is necessary to provide society-wide education programs against dangerous driving in order to guarantee aged people's safety. 5. legal procedure to secure aged people's safety should be strengthened to reinforce legal protection for them.

• 지역사회간호학회지
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• 제13권4호
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• pp.732-742
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• 2002

There are few research on the social drinking experience reported by women. Thus, it is necessary to understand the increasing tendency of womens drinking experience in the sociocultural context. This study was aimed to explore and delineate the drinking experience of full-time house wives base don Strauss and Corbin's grounded theory (1998). The subjects of this study were 10 full-time middle-aged house wives who were living in Seoul region. The data were collected through several in-depth interviews and observations until the theoretical saturation was achieved. The data were analyzed using Strauss and Corbin's grounded theory method. The results of this study generated a paradigm that the drinking experience of the full-time middle-aged house wives has a core category of 'free-oneself-from' and is also connected with mingling, anguish, accessibility, reaction of other people, change, personal resources, self-expression and building relationships by drinking. All processes from the occurrence of the central phenomenon to extinction are as follows; 1) Starting the process of the drinking experience for mingling and resolving anguish, and by having an easy accessibility; 2) Perceiving the process of reaction by other people, physical change of herself. and psycho-behavioral change; 3) Experiencing the process of free-oneself from thorough drinking; 4) Acknowledging the process of the resources for free-oneself-from; 5) Selecting the process of self-expression according to the resources; 6) Building the process of the relationship with drinking as a way of self-expression. Based on this paradigm, 4 hypothesis and 4 types are generated. Thus, this study suggests that it is useful to develop nursing interventions to improve the self-esteem of the full-time middle-aged house wives and to provide them various methods of problem solving strategies. This study also proposes that there should be a strategic program for the women so that they could make a route for positive self-expression by achieving a proper relationship with drinking.