Structural Behavior of Brick Wall Specimens Reinforced on the Surface with RC Walls under Horizontal Loading

DOI Web Site 参考文献7件
  • Mishra Chhabi
    Department of Architecture, Graduate School of Human-Environment Studies, Kyushu University, Fukuoka, Japan.
  • Yamaguch Kentaro
    Department of Architecture and Urban Design, Faculty of Human-Environment Studies, Kyushu University, Fukuoka, Japan.
  • Araki Keisuke
    Sekisui House, Ltd., Osaka, Japan.
  • Ninakawa Toshihiko
    Department of Architecture and Urban Design, Faculty of Human-Environment Studies, Kyushu University, Fukuoka, Japan.
  • Hanazato Toshikazu
    Division of Architecture, Graduate School of Engineering, Mie University, Mie, Japan.

説明

<p>This study aims to develop and propose a seismic retrofitting method for unreinforced brick masonry for improving the seismic safety of the 1st and 3rd headquarters buildings of Kyushu University. Five brick wall specimens representing parts of the walls that were adjacent to the openings in the headquarters buildings were prepared on a 3/4th scale of the actual structure and they reinforced on either one or sides of their surfaces with reinforced concrete (RC) walls. Horizontal loading experiment was conducted to confirm the reinforcing effect. Results indicated that the maximum load of the specimens (CS01, CS02) reinforced on one side with RC walls was 6.1 to 6.2 times higher than that of the unreinforced specimen. Similarly, the maximum load of the specimens (CD01, CD02) reinforced on both sides with RC walls was 12.6 to 14.2 times higher than that of the unreinforced specimen. The specimen CS02 reached its maximum load at a smaller deformation angle compared to the specimen CS01 because of the effect of twisting. Additionally, the authors also derived and verified a horizontal strength evaluation formula for brick wall specimens reinforced with RC walls. The values calculated using horizontal strength evaluation formulas were close to the experimental values.</p>

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