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Maruyama Prof. T.,Kyoto University | Kawai H.,Tokyo Denki University | Nishimura H.,General Building Research Corporation | Hanatani M.,Kyoto University
Journal of Wind Engineering | Year: 2014

Even though the importance of protecting windows from windborne debris under strong winds, there are still no available building codes or standards for their protection to building cladding in Japan. By contrast, some specifications for cladding performance under impact from windborne debris, including testing methods, exist in some foreign country and ISO standards. It is necessary to investigate the impact performance for roof tiles, representative windborne debris in Japan, in order to make domestic codes or standards. We made a new designed air cannon which can propel not only steel balls and a lumber but also a roof tile as missile. A series of impact tests based on ISO 16932 was conducted on laminated glasses by various missiles. This paper described the results of the impact performance and proposed standard missiles those include a lumber missile with equivalent destructive power to roof tiles. Source

Kominami K.,General Building Research Corporation | Takachi S.,P.A.C. Environment Mode Co. | Kobayakawa K.,General Building Research Corporation
Journal of Environmental Engineering | Year: 2010

Based on the knowledge that is acquired through basic experiment, the authors made full-scaled oil-interceptor and used conventional gasoline engine oil to conduct experiment. As a result, it is proved that to make oil-interceptor which can maintain retention efficiency to fulfill effluent standard of sewerage is feasible. Besides, the authors made consideration regarding performance test method of oil-interceptor based on this result of the experiment. Source

Masuo K.,Building Structural Technology | Tagawa H.,General Building Research Corporation | Ichioka Y.,General Building Research Corporation | Adachi M.,General Building Research Corporation
Journal of Structural and Construction Engineering | Year: 2013

In recent years, composite joints consisting of Steel-Beam and RC-Column or Steel-Beam and SRC-Column are applied to large-scaled moment-resisting frame structures. However, the adequacy of anchorage detail of column reinforcement is not clear due to the lack of experimental data. Also, in accordance with the increase of reinforcement size, mechanical anchorage is more often applied to RC and SRC beam-column joints. In this study, based on experimental data on 9 specimens of L-shaped joint consisting of Steel-Beam and RC-Colmnn or Steel-Beam and SRC-Column utilizing mechanical anchorage, design criteria on ultimate strength of such composite beam-column joints and anchorage length of column reinforcement are discussed. Source

Ozawa H.,Waseda University | Hasemi Y.,Waseda University | Yasui N.,Waseda University | Tamura Y.,Kansai Association for the Research in Traditional Housings | And 3 more authors.
AIJ Journal of Technology and Design | Year: 2012

The clay wall, unapproved as a fire-protective material in Building Standard Low, has a problem of the building confirmation. Therefore, clay wall is required to be analyzed on its fire-protective performance. Since clay contains a certain amount of organic substances, it has a probability of combustion and heat releasing. This paper reports the fireprotective ability of wall clay, examining through the cone calorimeter and the gas toxicity, utilized as a means of the approval tests for fireprotective material have been carried out. As a result, the wall clay, even enriched straw, proved that it has a performance of noncombustible matter. Source

Kikitsu H.,Japan National Institute for Land and Infrastructure Management | Yoshida A.,Tokyo Polytechnic University | Maeda Y.,General Building Research Corporation | Nishimura H.,General Building Research Corporation | Okada H.,Japan Housing and Wood Technology Center
AIJ Journal of Technology and Design | Year: 2012

The methods of structural test and evaluation applicable to steel wall system were developed in order to verify wind-resistant performance of the system. They were incorporated in the Standard of Steel Wall (SSW2011). The authors developed the methods in the viewpoint of performance-based structural design so that the concept of structural verification using them follows Building Standard Law of Japan. This paper outlines the detail of the proposed methods along with technical backgrounds. Source

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