Korean Journal of Construction Engineering and Management
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v.9
no.5
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pp.204-213
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2008
Apartments production without a previous example is existed by suddenly rapid growth of population and city. So this mass producted aged Apartments have many problems that is aged and staleness. Confrontation of obsolete and staleness is Build&Scrap and Remodeling. But Remodeling is much better than Build&Scrap Because Remodeling has Social, Economical, Environmental merits. This Research is Feasibility Evaluation System on an object of Remodeling. Feasibility Evaluation means Possibility on Objective action on aiming action in other words. It means degree of difficulty about purpose to act. Remodeling is based on existing apartment, to improve ability and performance of existed aged Apartment and by engineering technique and method. A point of view, development of Remodeling technique and popularization is necessary as well as Remodeling Plan and Construction technique of applied Existing building logical Approach is that. The purpose of this paper is handling allowance range of Remodeling Plan and Achievement accomplishment Feasibility Evaluation of purpose and objective and Understanding. Remodeling Feasibility is evaluated by two aspects. The first is Macro Level Approach of Remodeling Feasibility Evaluation on a Apartment Complex, and The second is Micro Level Approach of Remodeling Feasibility on each housing part is evaluated about removal and dismantlement.
Journal of Korean Society of Environmental Engineers
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v.31
no.7
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pp.521-530
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2009
This study has been made to execute a research in order to lead the improvement of indoor air quality, examining the indoor ventilation characteristics by using a numerical analysis method. To this end an extensive parametric investigation are made according to various external flow variables such as main wind direction and wind speed by season, building layout design, and location of ventilators, etc. in Daedeok Techno Valley, one of large-scaled apartment in Daejeon. It is observed there was a significant difference of main wind direction between summer and winter. The main wind direction in summer was a south wind, and on the contrary the direction in winter is northnorthwest, which is similar to the average main wind direction for 10 years. One of the important calculation results is that the change of wind direction causes a significant effect on the apartment ventilation by the change of pressure difference around each complex of apartment. In case of favorable area of ventilation, the indoor ventilation rate can meet 0.7 ACH from the standard value only with natural ventilation. On the contrary, in other area the value was much lower than the standard value. If the calculation result applies to the design of layout apartment or placement of ventilators, it will be greatly helpful to the energy saving because it can be parallel with the natural ventilation to help securing ventilation rate, not much depending on the mechanical ventilation.
Purpose: In this paper, we would like to analyze the growth rate of existing urban immersion in the downstream during large-scale urban development and the degree of reduction in existing urban immersion in the downstream when small excellent storage facilities are planned in apartment complexes. Method: A large-scale sewage model was built using the SWMM model of the U.S. Environmental Protection Agency, and the impact of flooding in existing downtown areas downstream was analyzed through simulation. The built model included the development zone, the existing downtown area downstream, and the entire river basin that discharges rainwater. Result: As a result of calculating and simulating the minimum excellent reservoir capacity for each apartment block in the study target area, it was found that the immersion of 4,893㎥ based on one hour, 25,815㎥ based on two hours, and 55,528㎥ based on three hours in the downstream urban area. Conclusion: As in this study, large-scale flooding simulation considering the existing downtown area in the downstream shows a significant increase in flooding in the downstream, and if excellent reservoir capacity is planned for each apartment block before development and the construction of excellent reservoirs is recommended.
A robot-friendly building certification system was established in 2022 to accommodate the growing number of service robots introduced into buildings. However, this system primarily targeted office buildings, with limitations in applying other functional architectures. To address this problem, we developed a certification model of a robot-friendly environment to extend the existing system to apartment complexes. Using focus group interviews and the analytic hierarchy process, we established 28 evaluating items categorized as (a) architecture and facility design, (b) networks and systems, (c) building operations management, and (d) support for robot activity and other services. These indicators were weighted based on their relative importance within and between categories, resulting in scores ranging from 1 to 18 points and a total of 176 points. According to evaluations with the 28 items, each apartment complex could be graded as "best," "excellent," or "general" based on its total achieved scores. This study is significant, as we present the world's first certification model of a robot-friendly environment for apartment complexes that considers human-robot interactions
Park, Ki-Yong;Lee, Sun-Woo;Shim, Young-Ju;Hwang, Hee-Yun
KIEAE Journal
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v.11
no.5
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pp.13-18
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2011
The overall aim of this study is to mitigate urban environmental problems. In particular, to reduce the effects of urban heat island phenomenon which is one of the urban planning perspective. This study focused on the analysis of the relationship between the urban heat island effect and the thermal and wind properties. To do this analysis, water space was virtually made at Yeol_Mae village Apt. Because it is very difficult to set up water space for the existing apartment complexes due to realistic constraints. This study, therefore has a strong sort of guidelines to create water space for newly formed city. It was based on the concept of virtual city through an in-depth analysis on reduction of urban heat island effects for the existing apartment along with creation of water space. To analysis site, Envi-Met Model developed by Michael Bruse was used. The results are as follows. The temperature went from 298.9K to 297.82K and The wind speed went from 1.42m/s to 1.43m/s. The results are slight in this study because creation of water space is planned to a small area of an apartment complex. But if the water space would be applied to a whole city, the mitigation effect of urban heat island would be bigger.
The purposes of this study were to determine the actual state of the indoor environment, and to analyze the relationship between the architectural or living factors and indoor physical elements in the elderly hall at apartment complexes during winter. The field surveys consisted of measurements of the physical elements, observations of living factors, and interviews with users. The field surveys were carried out at 5 halls in February 2009. The measured elements were air temperature, relative humidity, $CO_2$, CO, PM10, TVOC, HCHO, and illumination. The results showed that the averages of indoor temperature for the hall was between $22.7{\sim}25.1^{\circ}C$, relative humidity was 22.0~48.2%, $CO_2$ level was 892.4~2066.7ppm, CO level were 0~0.4ppm, PM10 level were $22.3{\sim}31.4{\mu}g/m^3$, HCHO level was 0.00~0.24ppm, and illumination level was 94~391.6lux. TVOC level was detected at 0.00~0.54ppm in only one hall. The average clothing amount of the users was 1.18clo and activity was 0.7~1.6met. It was evaluated to be a comfortable state at indoor temperature, CO level, PM10 level, and TVOC level, but an uncomfortable state at relative humidity, $CO_2$ level, HCHO level, and illumination level. The main reason seemed to be lack of ventilation.
Journal of Korean Association for Spatial Structures
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v.6
no.1
s.19
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pp.91-99
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2006
This paper presents wind pressure distribution on high-rise apartment buildings through wind-tunnel tests. In order to investigate wind-induced interference efforts on building claddings an apartment complex, which was damaged on the claddings during typhoon attack, was exampled and constructed as a scaled model. A series of wind tunnel tests using pressure models were performed in a boundary layer wind tunnel. The test results with and without interfering buildings were compared and discussed. It is observed that the wind pressure on buildings 105 and 106 with surrounding buildings shows highly negative, while the pressure without surrounding buildings were positive. Therefore the wind-induced interference effects should be taken into account in the design of claddings through wind-tunnel tests.
The purpose of this study was to investigate the attitude of the middle and old age about the elderly housing and the planning elements according to the types of silver town. For this study, a pre-interview and a survey method were used for data collection. A questionnaire survey of 372 women over 45 years old was carried out. Among the data, 321 cases were analyzed by SPSS for Windows V12.0. The major findings were as follows: 1) Regarding the elderly housing, While the couple cohabitation type preferred the existing housing and the general housing, the single habitation type preferred the apartment and silver town. Some people wanted silver town occupancy due to the decrease of children support burden, the other did not want it due to economical burden and the absence of homelike affection. When they move into silver town, they wanted to take money, clothes, and photo album. 2) In silver town development, while the couple cohabitation type preferred the apartment, independent house, the single type preferred the apartment, housing complex and group-home. The unit housing sizes of them were around 82.6 and 49.6 square meters respectively. In the space composition of unit housing, while the couple cohabitation type preferred bath room, kitchen, living room and two of bed room, the single type preferred one of bed room and bath room at least. On the other hand, this study found out that it was possible to plan the space for eating and washing as the common space. 3) According to single or couple, and ages, there were significant differences in preferred spatial planning elements, which needs to be reflected in the silver town development. These results can provide improvement guidelines for the development of the silver town with the differentiation of design factors for the silver town planners.
Journal of the Korean Society of Environmental Restoration Technology
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v.15
no.4
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pp.97-109
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2012
In this study this writer carried out survey and analysis on paving materials of children's playground for 40 apartment buildings with each of such apartment containing 100 households or more and which were built within last 15 years in Jeonju. As a result of analysis of such questionnaires this author could draw following conclusion. In the second half of 1990s pavement materials which were used mainly were sand and during first half of 2000s they were mixture of sand and rubber block and around 2010 they were rubber block or rubber chip pavements. Such change seemed to be a result of consideration of convenience for management and safety rather than in deference to diversity of children's outing places. Survey on the current status of pavement materials revealed need for directives by the main entity for management and their firm resolve for its implementation. And there was need for their coping with problems such as pressure of treading or lack of it or poor condition of drainage in case of sand and phenomena of pitting or dipping down, discoloring and poor drainage in case of rubber chips and rubber blocks and loosening of gaps between rubber blocks etc. Result of analysing status of usage disclosed that 50.4% of the respondents to questionnaires stated that they had experience of accidents. With regard to cause of such accident it was found that 47.5% of accidents were attributable to play facilities and 19.5% were due to paving (floor) materials thus it was disclosed that not only play facilities but also pavement materials had impact on safety for the children. Result of analysing level of satisfaction with pavement materials showed that pavement by rubber chips and blocks had higher level of satisfaction which was reflection of fear on cleanness of sand. In terms of preference rubber chip and rubber block pavements were highest and the next one was sand. Reason for such preference was based on concern with safety.
Kim, Seon-Gyoo;Yoo, Jae-Woo;Kim, Dong-Sub;Park, Jong-Il
Korean Journal of Construction Engineering and Management
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v.15
no.2
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pp.3-11
/
2014
As the recent construction projects have been carried out as a mixed-use complex project that includes architecture, civil, mechanical, electrical, and landscape, as well as become bigger and high-rise with the increased repetitive works, the TACT technique has received more attention as an effective method for achieving a target completion date by securing the continuous works. Although the TACT technique can maintain a steady flow without the interruption of works in order to utilize the resources of the repetitive works, it can not be considered as the systematic scheduling technique because the schedule computations are not possible as well as a critical path can not be recognized. This paper proposes the applicabilities of scheduling and monitoring the TACT schedule by the BDM technique as comparing and analyzing the methodologies for apartment finish works by the Excel, the Primavera(P6) based on the PDM technique, and the Beeliner based on the BDM technique that is a new networking technique, respectively.
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