00069958

open access

Version of Record

コウカン ブレースオ シヨウシタ テイソウ RCゾウ ケンチクブツ ノ タイシン ホキョウ コウホウ ニ カンスル ジッケンテキ ケンキュウ ソノ2 カンセツ セツゴウブ ノ セッケイホウ

Experimental Study on Seismic Retrofit for Low Rise R/C Building by using CHS Bracing : Part 2 Design Method of Fastener in Connection

Japanese (日本語)

神戸大学都市安全研究センター研究報告

5

299-319

神戸大学都市安全研究センター

2001-03

2007-04-12

Sires of experimental study on a seismic retrofitting method for a RC building using CHS (circular hollow section) bracing were carried out. In the study, an external bracing method was focused on instead of an internal bracing method. The internal bracing method, in which a strengthening steel frame element with bracing is placed in the plane of RC structural frame, has been used in most of retrofitting of existing disqualified RC buildings in Japan. On the other hand, the external bracing method, in which a strengthening element is placed out of the plane of RC structural frame with certain offset, is not commonly used. One of reason is complication of its shear resistant mechanism caused by the eccentricity due to offset. Therefore, design method of the fastener in connection between a strengthening steel frame element and a RC structural frame is not well established. However, the external bracing method can bring not only economical benefit but also convenience that residents of a building can stay in the building during construction, which is especially emphasized if it is compared with internal bracing method. In this study, performance of the external bracing method is investigated through the sires of experiment, and then design method of the fastener in connection will be proposed.

紀要論文