Restoring Force Characteristics of Precast Concrete Beams Post‐Tensioned by Unbonded Tendons at Widened Beam Ends

  • Kentaro Matsunaga
    Sumitomo Mitsui Construction Co. Ltd. Nagareyama‐shi Japan
  • Haruka Shimodaira
    Sumitomo Mitsui Construction Co. Ltd. Nagareyama‐shi Japan
  • Yuriko Ozu
    Sumitomo Mitsui Construction Co. Ltd. Nagareyama‐shi Japan
  • Kenji Tano
    Sumitomo Mitsui Construction Co. Ltd. Nagareyama‐shi Japan
  • Hiroshi Shinjo
    Sumitomo Mitsui Construction Co. Ltd. Nagareyama‐shi Japan
  • Masanori Tani
    Department of Architecture and Architectural Engineering Kyoto University Kyoto‐shi Japan

書誌事項

公開日
2025-01
権利情報
  • http://creativecommons.org/licenses/by/4.0/
DOI
  • 10.1002/2475-8876.70054
公開者
Wiley

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説明

<jats:title>ABSTRACT</jats:title> <jats:p>This paper proposes a modeling approach for the restoring force characteristics of unbonded precast prestressed concrete (PCaPC) beams with widened beam ends. Two models are introduced: one uses rotational springs at the outer ends of the general and widened beam zones, while the other uses a single rotational spring with an equivalent rigid zone. To validate the models, ten unbonded PCaPC beams with varying parameters, such as the amount of longitudinal rebar, the size of the widened beam ends, and the level of prestressing force, were constructed and tested. The proposed models demonstrated good accuracy in capturing the restoring force characteristics observed in the experimental results.</jats:p>

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