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Plank sheet is a corrugated steel plate, usually used as a material of civil structures, floor or roof materials in architecture. In this time, it is used as a constructional material covering the platform without finishing. Because the steel surfaces are exposed, it can be easily touched by users of station. To understand the temperature incensement of plank sheet exposed to the sun in summer, an experimental measurement was carried out by using the mock-up in Kami Koshien campus in Mukogawa Women’s University. The measurement was conducted in August 2012. The mock-up faced to the south, in order to simulate the down platform in the south side which received large heat loads by solar radiation. The surface temperatures of several points (500 mm, 1000mm, 1500mm, and 2000mm above the ground) of each direction were measured. In addition this, an experiment of water sprinkling to decrease of the surface temperature was conducted from 8th of August 2012.
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01. Mock-up model of plank sheet |
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02. Mock-up model of plank sheet |
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03. Mock-up model of plank sheet |
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04. Measurement of surface temperature of plank sheet |
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05. Mock-up model of plank sheet |
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06.Table of measurement results of surface temperature of plank sheet |
| The maximum temperature during the measurement period was 49ºC. The daily maximum temperature was around 45ºC, which was measured between 10:30 AM and 14:00. The temperature of the east surface was highest in the morning, and the temperatures of the south, west, and north surfaces followed in descending order of the temperature. While the temperature of the west surface was highest in the evening, and those of the south, east and north followed. In the water sprinkling experiment was conducted from 8th August, the 24-29ºC tap water was sprinkled from top side of the mock-up of the plank sheet. In each case, the surface temperature of the north side, which is platform side, became constant in 5 minutes after starting sprinkling, and dropped to about 30ºC. It is prove that the small amount of tap-water sprinkling is effective to decrease the surface temperature.
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Hanshin Electric Railway Co., Ltd.
Architectural Design Studio in Mukogawa Women’s University
Shigeyuki OKAZAKI: Professor Emeritus, Kyoto University,
Professor, Head, Department of Architecture, Mukogawa Women's University
Mamoru KAWAGUCHI: Professor Emeritus, Hosei University,
President, KAWAGUCHI & ENGINEERS,
Visiting Professor, Mukogawa Women's University
Department of Architecture, Mukogawa Women’s University, Japan
Noritoshi SUGIURA
Keisuke INOMATA
Junko MORIMOTO
Aya YAMAGUCHI |
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