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NAOSITE : Nagasaki University's Academic Output SITE > Faculty of Engineering > Bulletin > Reports of Graduate School of Engineering, Nagasaki University > Volume 48, No. 91 >

鋼管に木とグラウトを充填した合成構造柱の中心圧縮正常に関する基礎的研究


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Title: 鋼管に木とグラウトを充填した合成構造柱の中心圧縮正常に関する基礎的研究
Other Titles: Experimental Study of Centrally Loaded Column Composed of Steel Tube, Timber and Grout
Authors: 中原, 浩之 / 塚本, 涼太
Authors (alternative): NAKAHARA, Hiroyuki / TSUKAMOTO, Ryota
Issue Date: Jul-2018
Publisher: 長崎大学大学院工学研究科 / Graduate School of Engineering, Nagasaki University
Citation: 長崎大学大学院工学研究科研究報告, 48(91), pp.7-13; 2018
Abstract: The authors have been developing a seismic retrofit method by using concrete filled steel tubular (CFT) brace acting in compression. The customers asked two requests to this method. One was weight saving and the other was the replacement of high flow concrete to cement grout. The high flow concrete is usually used to normal CFT, but it is sometimes difficult to be available in developing countries and/or isolated islands. A new composite brace of steel tube, timber and grout has been developed. The proposed brace is similar to CFT, and it is made by setting the timber in the steel tube at the central position of the section. The gap between the steel tube and the timber is filled by cement grout. The proposed columns were tested under axial compression to obtain the basic structural property. These results showed that the axial force carrying capacities were estimated by summation of nominal squash load of each component. The paper shows that the possibility of actual use of grout filled steel tube including timber to the seismic retrofit.
Keywords: Composite columns / Seismic retrofit / Brace member / CFT / Axial loading test
URI: http://hdl.handle.net/10069/38459
ISSN: 18805574
Type: Departmental Bulletin Paper
Text Version: publisher
Appears in Collections:Volume 48, No. 91

Citable URI : http://hdl.handle.net/10069/38459

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