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無補強組積造壁の面内・面外の破壊を追跡可能なマクロモデルの開発

研究課題

研究課題/領域番号 22KJ0682
補助金の研究課題番号 21J22394 (2021-2022)
研究種目

特別研究員奨励費

配分区分基金 (2023)
補助金 (2021-2022)
応募区分国内
審査区分 小区分23010:建築構造および材料関連
研究機関東京大学

研究代表者

Adnan S M Naheed  東京大学, 工学系研究科, 特別研究員(DC1)

研究期間 (年度) 2023-03-08 – 2024-03-31
研究課題ステータス 完了 (2023年度)
配分額 *注記
2,200千円 (直接経費: 2,200千円)
2023年度: 700千円 (直接経費: 700千円)
2022年度: 700千円 (直接経費: 700千円)
2021年度: 800千円 (直接経費: 800千円)
キーワードURM wall / Out-of-plane behavior / Dynamic shake table test / Prior in-plane damage / Numerical model / URM infill
研究開始時の研究の概要

In this research to investigate the out-of-plane behavior of URM walls in RC frames considering prior in-plane failure modes we will conduct both experimental investigation an numerical model development. First we develop the model using theoretical approach and past research results. Then using the our experimenal results we will modify and calibrate the model. So that our model can simulate the dynamic behavior of URM walls in RC frame with prior in-plane damages.

研究実績の概要

The focus of the research is to simulate the out-of-plane behavior of unreinforced masonry (URM) infills. We have completed the in-plane and out-of-plane tests on three full-scale brick URM wall in RC frame specimens. Different prior in-plane damages were applied to the specimens. Afterwards, the specimen is moved to the shaking table and incremental out-of-plane shakings are applied to the specimens until the wall collapses. A typical 6-story building in Bangladesh is analyzed under expected ground motion in Dhaka city. By conducting a dynamic analysis of the building, the excitation that will be suffered by the selected frame at the top story in the out-of-plane direction is derived. The specimens represent a frame on the top story of the prototype building. This excitation is used as the reference excitation to apply out-of-plane shaking to the specimens. Motion capture systems, lasers, and accelerometers were used for measurements during the shaking test. Using the motion capture system we could capture the overall 3D behavior of the URM walls and RC frames. We are analyzing the mechanisms of wall collapse at present. Several factors responsible for the wall collapse are being investigated.

報告書

(3件)
  • 2023 実績報告書
  • 2022 実績報告書
  • 2021 実績報告書
  • 研究成果

    (2件)

すべて 2022

すべて 雑誌論文 (1件) (うち国際共著 1件、 査読あり 1件) 学会発表 (1件)

  • [雑誌論文] A nonlinear macromodel for simulating the in-plane behavior of unreinforced masonry (URM) infilled frames2022

    • 著者名/発表者名
      Adnan S. M. Naheed、Matsukawa Kazuto、Haga Yuji、Islam Md Monzurul、Nakano Yoshiaki
    • 雑誌名

      Bulletin of Earthquake Engineering

      巻: 20 号: 13 ページ: 7347-7379

    • DOI

      10.1007/s10518-022-01488-8

    • 関連する報告書
      2022 実績報告書
    • 査読あり / 国際共著
  • [学会発表] Simulation of the out-of-plane behavior of URM infilled RC frames under dynamic excitation2022

    • 著者名/発表者名
      ADNAN S M NAHEED
    • 学会等名
      JAEE Annual Meeting 2022
    • 関連する報告書
      2022 実績報告書

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公開日: 2021-05-27   更新日: 2024-12-25  

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