Energy efficiencies of linear-shaped multi-residential apartment buildings built with hybrid structural systems

Hong, Won‐Kee; Lim, Gyun-Taek; Park, Seon-Chee; Kim, Jeong Tai

doi:10.1016/j.enbuild.2011.10.049

Cited by 24 publications

(17 citation statements)

References 11 publications

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“…Various types of external wall systems that comprise structural body, insulation layers, openings like doors and windows with various glazing types are used in high-rise residential buildings because dry light-weight members are advantageous compared to RC-based wet construction methods in terms of constructability [2,3]. Lightweight members, especially glass fiber reinforced concrete (GFRC) and cellulose fiber reinforced concrete (CFRC), are often utilized due to economics, constructability and texture.…”

Section: Introductionmentioning

confidence: 99%

“…Reinforced concrete (RC) bearing wall systems are often used to construct residential buildings rather than column-beam systems in terms of economic benefits [2][3][4]. However since the existing bearing wall system has limitations in vertical construction, the use of column-beam systems is on the rise, particularly for high-rise residential buildings [5][6][7].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Comparative analysis of energy related performance and construction cost of the external walls in high-rise residential buildings

Lee

Kim

2015

Energy and Buildings

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Comparative analysis of energy related performance and construction cost of the external walls in high-rise residential buildings

Lee

Kim

2015

Energy and Buildings

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“…Apartments built 30 years ago or less are being demolished for rebuilding due to the degradation of facilities and external walls. Bearing wall systems rather than column-beam systems are often used to construct apartments due to their economic advantages with respect to materials and construction [3][4][5][6], although column-beam systems are also considered for spatial flexibility. In recent years, South Korea has witnessed an increase in apartments built with column-beam systems, enabling long-term usage through a structure with spatial flexibility, easy maintenance, and easy repair [7,8].…”

Section: Introductionmentioning

confidence: 99%

Thermal Behavior and Measures to Prevent Condensation of a Newly Developed External Wall Panel

et al. 2019

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An external wall panel (EWP) as a novel alternative to provide spatial flexibility and improve the performance of external walls was developed. The purpose of this study was to analyze the thermal performance of this EWP. A simulation analysis was carried out to scrutinize whether it was vulnerable to condensation, considering South Korea's weather conditions, and find countermeasures to prevent this. Results indicated that the indoor surface temperature with the measures of added insulation materials and an inserted thermal-breaker was over 16.5 • C and that these methods could prevent condensation. In addition, this study assessed unsteady-state thermal characteristics, linear thermal transmittance, and the effective thermal transmittance of EWP. Effective thermal transmittance was estimated in consideration of the heat transmittance of EWP and the linear thermal transmittance of its slabs and its connection parts. The thermal characteristics of the building envelope are needed to analyze effective thermal transmittance and linear thermal transmittance-associated thermal bridges.Sustainability 2019, 11, 912 2 of 14 reparability and improved performance. With this background, this study developed an EWP that could be detached and attached as a novel alternative to provide spatial flexibility and improve the performance of external walls. This EWP was developed for external insulation to minimize thermal bridging effects, and its module systems could provide easy constructability.External wall design and selection of its materials are important elements of the building envelope. The external wall is a non-structural material, a protective covering that is fixed on the outdoor surface of a building and used to protect against moisture and thermal variations while providing aesthetic purposes [10]. The envelope of a building is a factor that has the greatest influence on the environment inside the building [11]. The building envelope separates the indoor environment that is air-conditioned by heating and cooling systems from the external environment that is not air-conditioned [12]. It protects indoor space from weather conditions and large fluctuations in temperature. A proper building envelope provides thermal comfort for occupants and conserves building energy at the same time [13,14].Several studies have investigated the thermal performance of external walls or claddings. Bojic et al. reported the thermal behaviors of residential buildings by varying the thickness and positions of thermal insulation to walls. They found out that the largest reduction of the cooling demand was observed when thermal insulation was located either at the outer or indoor side of the wall [15]. In addition, Bojic and Loveday have investigated the thermal effect of layer distribution and the relative thickness of building insulation on building envelopes. In their study, the location of insulation in the wall can significantly influence thermal behaviors in buildings [16]. A similar study regarding thermal performance by differentiati...

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“…• This method also provides solutions for the floor height of apartment buildings with a reinforced concrete Rahmen frame and demonstrates its structural and economic efficiency and constructability through tests and simulations [7], [8].…”

Section: Smart Framementioning

confidence: 99%

Experimental and Analytical Investigation of Column- Beam Joints with Smart Frame Based on Strain Compatibility

Yun¹,

Hong²,

Kim³

et al. 2015

IJET

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Abstract-A great deal of research is being carried out on dry and prefabricated construction methods with a precast composite structural system. This study investigates the joint behavior and calculates structural capacity of a Smart frame, which is a steel-reinforced concrete structural system developed by researchers in a structural experiment. The structural experiment discovered that flexural moment capacity improved by 46.8% in Smart columns compared to reinforced concrete columns. This study is expected to contribute to structural design.Index Terms-Joint, precast composite structural system, smart frame, strain compability, structural experiment joint.

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Energy efficiencies of linear-shaped multi-residential apartment buildings built with hybrid structural systems

Cited by 24 publications

References 11 publications

Comparative analysis of energy related performance and construction cost of the external walls in high-rise residential buildings

Comparative analysis of energy related performance and construction cost of the external walls in high-rise residential buildings

Thermal Behavior and Measures to Prevent Condensation of a Newly Developed External Wall Panel

Experimental and Analytical Investigation of Column- Beam Joints with Smart Frame Based on Strain Compatibility

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