Journal of Shandong University(Engineering Science) ›› 2025, Vol. 55 ›› Issue (6): 129-141.doi: 10.6040/j.issn.1672-3961.0.2024.265

• Civil Engineering • Previous Articles    

Plastic hinge length study of prefabricated segmental assembled bridge piers

XIE Yupeng, XIONG Ergang*, LI Sifeng, LIU Fengwei, WANG Shang   

  1. XIE Yupeng, XIONG Ergang*, LI Sifeng, LIU Fengwei, WANG Shang(College of Architecture and Engineering, Chang'an University, Xi'an 710061, Shaanxi, China
  • Published:2025-12-22

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Abstract: In order to investigate the plastic hinge performance of precast segmental piers with two different connection methods based on the "cast-in-place" principle, a total of 66 concrete piers with rectangular or square cross-sections at home and abroad were collected and assembled based on the experimental studies of four precast piers. The effects of pier height, section height in the loading direction, material properties, reinforcement ratio, and axial compression ratio on the plastic hinge length were analyzed and the existing plastic hinge length formulae were evaluated. The formula of plastic hinge length suitable for precast segmental assembled piers was proposed, and its feasibility was verified by analytical method. The results indicated that the plastic hinge length increases with the increase of the pier height, section height, yield strength, and diameter of longitudinal bars and reinforcement ratio, and decreases with the increase of the axial compression ratio; and the formula proposed in this paper was suitable for the calculation of the plastic hinge length of precast segmental assembled pier.

Key words: prefabricated segmental assembled piers, new connection, plastic hinge length, deformation capacity, pseudo-static test

CLC Number: 

  • TU375
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