• International Journal of High-Rise Buildings
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• v.5 no.2
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• pp.145-154
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• 2016

When the tall office building first appeared in the street of Chicago in the end of Nineteenth Century, this building type has become a commodity in the development of real estate and been defined as a machine that makes the land pay. With the investigation of land price samples of the high-rise commercial buildings and the overall land price development in the central district of International Settlement in Shanghai, this paper tries to examine the site selection and construction of high-rise commercial buildings have important positive effect on the land value development.

• International Journal of High-Rise Buildings
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• v.2 no.4
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• pp.285-291
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• 2013

This paper proposes a framework for understanding the energy consumption differences between tall and low-rise buildings. Energy usage data from 706 office buildings in New York illustrates expected correlations from the framework. Notable correlations include: taller buildings tend to use more energy until a plateau at 30~39 floors; tall buildings in Manhattan use 20% more energy than low-rise buildings in Manhattan, while tall buildings outside Manhattan use 4% more energy than low-rise buildings outside Manhattan. Additional correlations are discussed, among which is the trend that the Energy Star program in New York City assigns higher ratings to tall buildings with higher EUIs than low-rise buildings with the same EUI. Since Energy Star is based on regressions of existing buildings, the Energy Star ratings suggest taller buildings have higher EUIs than shorter buildings, which is confirmed by the New York City energy benchmarking data.

• Fire Science and Engineering
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• v.6 no.2
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• pp.3-13
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• 1992

As the society is industrialization and urbanization, the increase in density of urban population brought about the rise of the land value and the shortage of the land for housing, as a result urban housing shortage was on the rise in a new social problem. According to this high-rise apartment buildings is under construction, but that is required habitation and safety, especially security for fire safety, because it is various age group residents in for 24 hours. Consequently this study aims to present problems and countermeasures against fire safety of high-rise apartment buildings and to construct a residential space to minimize human life and property damage caused by a fire.

• KIEAE Journal
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• v.9 no.5
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• pp.3-12
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• 2009

High-rise apartments in Korea has physical, environmental, social, economical superannuation. But the remodeling of their apartments is focused on the physical improvement. So they remains the problems of community, safety, economy. Remodeling have to do is to attempt to synthesize the whole superannuation. So we select the B-maul apartments in 1st new towns has the typical problem(parking unsufficiency, small pyeong, ecology shortage etc) of high-rise apartment in the country and analysis its superannuation and remodeling plan. And verify the propriety of a remodeling plan to improve superannuation through an expert survey. Through the tasks, high-rise apartment remodeling in the country need to have a cure for the problem : lowing of the ceiling heights, a shortage of understanding among the residents, and insufficient improvement in the surroundings, no reuse-energy system.

• Proceedings of the KIEE Conference
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• 2000.07c
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• pp.1611-1613
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• 2000

In this study in order to find out the trends and the residual lifetime for electric connections/contacts using infrared image camera, "lifetime temperature rise model" is theoretically proposed on the base of "lifetime resistance model" and to prove this theory, experiments have been performed for various kinds of electric connections/contacts. Two suggestions have been builded up or the "lifetime temperature rise model" ; one is the linear relationship between the temperature rise $\Delta K$ and contact resistance, and the other is the functional relationship between the temperature of electric connections/contacts and the operating time which ascribed in the "lifetime resistance model". From the experimental results, measured values were quite similar to the theoretical value so that two suggestions in "lifetime temperature rise model" were appeared to be correct.

• Proceedings of the Korean Institute of Building Construction Conference
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• 2019.05a
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• pp.49-50
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• 2019

In the case of High-rise buildings, it has a problem by stack effect that rise of vertical height. Especially in case of fire, it need to the consideration of stack effect that it has bigger than general. Therefore in this study, we used to the Contamw and FDS simulation for analysis of stack effect and pressure distribution characteristic in fire. As a result the Contamw simulation shows the pressure distribution by stack effect in general high-rise buildings. However, in case of fire, the height of the neutral plane is lowered and stack effect is larger. Therefore, it is necessary to multiply analyze the temperature distribution and the stack effect in fire.

• International Journal of High-Rise Buildings
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• v.1 no.4
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• pp.301-310
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• 2012

Buildings, energy and the environment are key issues that the building professions and energy policy makers have to address, especially in the context of sustainable development. With more tall buildings constructed in China, the impact on energy consumption and carbon emission would be great from buildings (2% increase of carbon dioxide annually between 1971 and 2004). The imperative was to investigate the building energy performance of high-rise in different climate zones and identify the key design parameters that impose significantly influence on energy performance in sustainable building design. Design implications on glazing performance, sizing of the ventilation fans, renewable energy application on high-rise building design are addressed. Combination of effective sustainable building design strategies (e.g., building envelope improvement, daylight harvesting, advanced lighting design, displacement ventilation, chilled ceiling etc.) could contribute more than 25% of the total building energy consumption compared to the international building energy code.

• Proceedings of the Earthquake Engineering Society of Korea Conference
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• 1999.04a
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• pp.151-160
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• 1999

It is recommended to have symmetric plan and elevation in structural design of hight-rise building structures to reduce torsional response of the structures. However it is not always allowed to do so due to architectural purposes. in many cases high-rise buildings are asymmetric. The purpose of this study is to predict the torsional behavior of high-rise building structures with asymmetric plan. Equivalent lateral stiffness and deformation shape factor are used for prediction of torsional response of high-rise buildings. Overall torsion of a structure is estimated by equivalent lateral stiffness and torsion of each floor is estimated by deformation factor in each 2-D lateral force resisting elements.

• Advances in Computational Design
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• v.1 no.3
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• pp.221-234
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• 2016

The present study dictates the behavior of shear wall under a seismic event in slender high rise buildings, and studies the effect of height, location and distribution of shear wall in slender high rise building with and without boundary elements induced by the effect of an earthquake. Shear walls are located at the sides of the building, to counter the earthquake forces. This study is carried out in a 12 storeys building using SAP2000 software. The obtained results disclose that the behavior of the structure is definitely affected by the height and location of shear walls in slender high rise building. The stresses are concentrated at the limit between the shear wall region and the upper non shear wall especially for shear walls without columns. Displacements are doubled between the shear wall region and the upper non shear wall especially for shear walls without columns.

• Proceeding of Spring/Autumn Annual Conference of KHA
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• 2002.11a
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• pp.97-102
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• 2002

The Purpose of this study was to investigate the exterior materials of super high-rise housing more than 30 stories which were built in New York City between 1924 and 2004. The result of examining 153 buildings was as follows; Exterior materials of super high-rise housing which were used bricks, of the salt-glazed bricks, terra-cotta and ceramic tiles, jumbo bricks and bricks were preferred among them. The colour of bricks was yellow, yellow ochre, clear brown, brown, dark brown, orange, vermilion and red. Exterior materials of super high-rise hotel and hotel apartment were bricks and ceramic tiles in the early days but stones, curtain wall and glass(green glass, green-tinted glass, brown-tinted glass, black glass) after 1980s. The main colour of buildings extended gray, green, blue-tinted brown-tinted and black.