• Title/Summary/Keyword: Architectural Conditions

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A Study on Generating Process of Regional Balance Point Temperature for Heating Degree-days in Korea (국내 난방도일의 지역별 균형점온도 산정 과정에 관한 연구)

  • Park, So Min;Song, Doo Sam
    • Korean Journal of Air-Conditioning and Refrigeration Engineering
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    • v.29 no.9
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    • pp.482-495
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    • 2017

  • Degree-days are practically used as a tool to estimate energy consumption for heating and cooling. Degree-days are calculated by summing differences of balance point temperature and outside temperature for the analyzed period. Determining balance point temperature is a key point in calculating accurate degree-days. However, ASHRAE standards are used for balance point temperature in Korea because balance point temperature considering climate conditions and building thermal performance is not proposed in Korea. This study proposes the process to generate balance point temperature for heating degree-days considering Korean climate and building conditions. Also, a new balance point temperature for three regions in Korea will be suggested in this study. Balance point temperature of Seoul is approximately $15.0^{\circ}C$, lower than the current standard of $18.3^{\circ}C$. Balance point temperature of Seoul considering climate conditions and building performance can be different from the ASHRAE suggested value ($18.3^{\circ}C$). Results revealed the current standard for balance point temperature should be changed considering climate and building conditions in Korea.

  • https://doi.org/10.6110/KJACR.2017.29.9.482 인용 PDF KSCI

Optimum Control of a Photoelectric Dimming System in a Small Office with a Double Skin Envelope

  • Kim, Soo Young;Yum, Sung Kon
    • Architectural research
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    • v.7 no.2
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    • pp.47-54
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    • 2005

  • A photoelectric dimming control system for a small private office space with a double skin envelope system was analyzed for the purpose of examining optimum control performances under a variety of daylight conditions. Computer simulations were performed for the three different photosensor types positioned at the center of ceiling in the space. They were applied in both a south and north-facing room. Daylight conditions were a fixed horizontal venetian blind on an external envelope and a retractable shading device on an internal envelope under a clear, intermediate and overcast sky at different times of a day and year. Partially-shielded photosensors provided good control performances providing the required electric light output under clear and intermediate sky conditions. Unshielded photosensors failed to provide necessary illuminance levels producing less electric output and fully-shielded photosensors generally provided excessive light output. Reasonable electric lighting energy savings were achieved except under overcast sky conditions where the control system did not contribute to energy savings due to the less daylight through envelopes. The retractable shading device covering 50% of the internal envelope reduced energy savings up to 19.62%, but the workplane illuminance levels were maintained within recommended ranges. The coefficients of determination between workplane illuminance and photosensor illuminance due to daylight ranged from 0.74 to 0.98. Partially-shielded conditions provided best correlations and the north-facing room yielded stronger correlation than the south-facing room.

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Effects of loading conditions and cold joint on service life against chloride ingress

  • Yang, Keun-Hyeok;Mun, Ju-Hyun;Yoon, Yong-Sik;Kwon, Seung-Jun
    • Computers and Concrete
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    • v.22 no.3
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    • pp.319-326
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    • 2018

  • RC (Reinforced Concrete) members are always subjected to loading conditions and have construction joints when constructed on a big scale. Service life for RC structure exposed to chloride attack is usually estimated through chloride diffusion test in sound concrete, however the test is performed without consideration of effect of loading and joint. In the present work, chloride diffusion coefficient is measured in concrete cured for 1 year. In order to evaluate the effect of applied load, cold joint, and mineral admixtures, OPC (Ordinary Portland Cement) and 40%-replaced GGBFS (Ground Granulated Blast Furnace Slag) concrete are prepared. The diffusion test is performed under loading conditions for concrete containing cold joint. Investigating the previous test results for 91 days-cured condition and the present work, changing diffusion coefficients with applied stress are normalized considering material type and cold joint. For evaluation of service life in RC continuous beam with 2 spans, non-linear analytical model is adopted, and service life in each location is evaluated considering the effects of applied stress, cold joint, and GGBFS. From the work, varying service life is simulated under various loading conditions, and the reduced results due to cold joint and tensile zone are quantitatively evaluated. The effect of various conditions on diffusion can provide more quantitative evaluation of chloride behavior and the related service life.

  • https://doi.org/10.12989/cac.2018.22.3.319 인용 KSCI

A Study on the Research Model for Healthy Urban and Architectural Environment (건강한 건축·도시환경을 위한 연구모형 구축에 관한 연구)

  • Choi, Kwangseok
    • Journal of The Korea Institute of Healthcare Architecture
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    • v.19 no.1
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    • pp.35-46
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    • 2013

  • Purpose: Health is one of the most important interests in current and future human society. Various efforts, which to maintain and promote their good health conditions, continue to be tried in future urban and architectural environment. The purpose of this study is to establish an integrated framework of research approaches for healthy urban and architectural environment that continuously promotes health according to people's entire life course. Methods: This was done by literature reviews, which is related to interdisciplinary researches for the determinants of health and healthy environment. Results: As a result of this study, an integrated research model, as a methodology, was proposed. This explains the concept of integrated research approaches for urban and architectural environment in the respect of people's health. Integrated health concept includes not only the area of health care environment to have recovery and treatment but also the daily living environment for people who have potential of being ill, and finally the city environment for entire people as health supporting elements including safety and primary prevention. Implications: Under the basis of this model, according to the life course, various researches on sustainable healthy urban and architectural environment should be followed from now on. The model should also be continuously complemented and developed into a standard of healthy environment.

  • https://doi.org/10.15682/jkiha.2013.19.1.035 인용 PDF KSCI

Design Application of Corrugated Products for Kinetic Architectural Applications (골판 재료의 건축 분야에서의 적용을 위한 연구)

  • Kim, Ho-Jeong
    • Journal of Industrial Technology
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    • v.25 no.B
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    • pp.81-87
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    • 2005

  • This project addresses the product identification and design application of corrugated products for kinetic architectural applications. Initially, an architectural approach to product identification was carried out with the end goal of demonstrating application design principles of numerous novel architectural examples from the forest products industry. A design and prototyping stage followed demonstrating such application design principles and functional analysis on various novel architectural examples. The results of coupling product identification with proven application advantages will be of potential value not only to architecture but also to other designers in the arts and sciences. The general motivation for the research arises out of a growing interest corrugated and paper products to be ideally suited for various architectural applications for their unparallel environmental benefits. Applications in architecture that use fewer resources and that adapt efficiently to complex and changing conditions are particularly relevant for an industry (architecture) that is increasingly aware of its environmental responsibilities. Corrugated and paper products are highly under-utilized by the building industry as design choice material for both interior and exterior applications. An increased awareness of the benefits of corrugated and paper products coupled with a process of designing for the total use and reuse will prove to be a valuable means by which issues of energy efficiency and environmental quality of buildings could be enhanced to be more efficient, affordable, and therefore reach a broader audience of users.

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The Context of Enactment and the Application to the Design of in 1916 (1916년 <조선총독부건축표준>의 제정 배경과 계획적 적용)

  • Joo, Sang-Hun
    • Journal of architectural history
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    • v.28 no.6
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    • pp.67-76
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    • 2019

  • The purpose of this study is to identify the context of enactment and the application to the design of in 1916. The characteristics of the composition are as follows; First, One-third are general rules of common application, Second, regulations related to cold resistance are set up separately, last, each of the 21 articles was equally divided for schools, hospitals and prisons. The standard reflect the times of the mid-1910s. The Trend of using of the Western Building System in the 1910s, The need for building construction against cold weather, and Actual conditions of renovation, extension and new plans by facility. Furthermore, the fact that various regulations concerning standard design were enacted and used in various Japanese institutions around the 1910s may have influenced the establishment of the standard. Meanwhile, after checking the status of the reflection of the standard on the planning drawings of the government facilities around 1916, it was also found that the plan was carried out in compliance with the provisions of the standard, and that the items already applied before the enactment had been organized into architectural standards.

  • https://doi.org/10.7738/JAH.2019.28.6.067 인용 PDF KSCI

A study on the Architectural Condition and Cases of BIPV-module for Roof (지붕일체형 PV모듈의 건축특성 및 적용사례 분석연구)

  • Lee, Eung-Jik
    • KIEAE Journal
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    • v.6 no.3
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    • pp.49-56
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    • 2006

  • The roof among the outer surfaces of buildings is an optimum place to install PV since it is the best favorable part in the building to be exposed to day light. Especially, in case of module of BIPV for Roof, it should have essentially the functions of both electricity generation and roof-finish as a construction material. The followings are the results of the study which has analyzed the architectural conditions and applications thereof at the job site. -The aesthetic function of BIPV module is very important because the roof, mostly located at the top of the buildings, is easily recognized and affects outer interior design of the building a lot. -The heat proof of BIPV for Roof could affect the energy consumption through the roof having a wide area. -For architectural condition to the weather, the roof has to ensure the stability of the weather, humidity proof, and airtightness to the wind respectively. -For architectural condition of the structure, endurance by physical power such as stability of both combining and fixing and transfer of load should be ensured. -For residents protection, it has also architectural functions to secure for the space and shield ozone, UV and noxious substances. -Through its practical applications, It is already confirmed that there are various types of BIPV modules overseas and its application has been proved successfully.

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Development of Capstone Design Curriculum in Architectural Engineering that Applies Flipped Learning and Design Thinking (플립러닝과 디자인씽킹을 적용한 건축공학종합설계 교육과정 개발)

  • Kim, Jae-Yeob
    • Journal of the Regional Association of Architectural Institute of Korea
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    • v.21 no.1
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    • pp.89-95
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    • 2019

  • In the era of the Fourth Industrial Revolution, a new curriculum that breaks away from the existing education programs is needed to cultivate men of talent for this new industrial era. In this regard, this study aimed to develop innovative curriculums that can be applied to the capstone design of architectural engineering at universities in Korea. To this end, it analyzed the operational status of the capstone design curriculum of domestic universities that operate engineering certification education programs. In addition, it examined educational innovation cases of advanced universities at home and abroad, and analyzed other studies related to educational renovation. Based on the analysis results, it developed the capstone design curriculum of architectural engineering that can be applied to domestic universities. The curriculum was developed into two contents: operating method and syllabus. The method which has been commonly applied to domestic universities was adopted as the operating method. The syllabus was developed by applying flipped learning and design thinking theory, which has widely been dealt with in advanced universities and recent studies. In addition, the curriculum was developed in the form of a prototype to meet the conditions of each university for its efficient utilization.

Damage Detection at Welded Joint of Two-Dimensional Plane Model

  • Chung, Chang-Yong;Eun, Hee-Chang;Seo, Eun-Kyoung
    • Architectural research
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    • v.13 no.4
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    • pp.53-60
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    • 2011

  • Damage detection algorithms based on a one-dimensional beam model can detect damage within a beam span caused by flexure only but cannot detect damage at a joint with prescribed boundary conditions or at the middle part of a beam section where the neutral axis is located. Considering the damage at a welded joint of beam elements in steel structures and modeling the damage with twodimensional plane elements, this study presents a new approach to detecting damage in the depth direction of the joint and beam section. Three damage scenarios at the upper, middle, and lower parts of a welded joint of a rectangular symmetric section are investigated. The damage is detected by evaluating the difference in the receptance magnitude between the undamaged and damaged states. This study also investigates the effect of measurement locations and noise on the capability of the method in detecting damage. The numerical results show the validity of the proposed method in detecting damage at the beam's welded joint.

  • https://doi.org/10.5659/AIKAR.2011.13.4.53 인용 PDF KSCI

A Study on the Optimized Architectural Space Planning by Searching Algorithm Method (탐색적 방법에 의한 건축공간 배치계획 최적화에 대한 고찰)

  • Lim, Myung-Gu;Kim, Su-Young
    • Journal of The Korean Digital Architecture Interior Association
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    • v.1 no.1
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    • pp.51-58
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    • 2001

  • The purpose of this study is to improve productivity of architectural space planning(A.S.P,) by computer system and to optimize ASP. A searching algorithm is the best way to slave optimized A.S.P. Because architectural design is too many various site situations and client's demands to specify the general solving methods. This method seek the best design case in all possibility and to be modeled as this; $\rightarrow$[$\rightarrow$$\rightarrow$