Steel bridge piers with inner cruciform plates under cyclic loading

• Published in: Thin-walled structures Vol. 40; no. 2; pp. 183 - 197
• Main Authors: Yamao, T, Iwatsubo, K, Yamamuro, T, Ogushi, M, Matsumura, S
• Format: Journal Article Conference Proceeding
• Language: English
• Published: Oxford Elsevier Ltd 01.02.2002; New York, NY Elsevier Science
• Subjects: Applied sciences; Buildings. Public works; Computational techniques; Condensed matter: structure, mechanical and thermal properties; Cyclic loading; Deformation and plasticity (including yield, ductility, and superplasticity); Ductility; Energy absorption capacity; Exact sciences and technology; Inner cruciform plate; Mathematical methods in physics; Mechanical and acoustical properties of condensed matter; Mechanical properties of solids; Physics; Steel bridge pier; Strength of materials (elasticity, plasticity, buckling, etc.); Structural analysis. Stresses; Cyclic loading; Steel bridge pier; Ductility; Energy absorption capacity; Inner cruciform plate; Metallic structure; Performance evaluation; Compression; Mechanical strength; Cyclic loads; Numerical method; Pressure test; Experimental study; Reinforced structure; Finite element method; Longitudinal load; Elastoplasticity; Energy dissipation; Bridge pier; Axial load; Energy absorption; Cruciform shape; Plates; Stiffener
• ISSN: 0263-8231; 1879-3223
• DOI: 10.1016/S0263-8231(01)00059-3

The strength and ductility of steel bridge piers with inner cruciform plates were studied experimentally and theoretically. Three types of specimens were investigated, one with an ordinary stiffener, one with inner cruciform plates and one where the section is unstiffened, were tested under a constant compressive axial load and cyclic horizontal loads. Elasto-plastic and large displacement numerical analyses were carried out using the finite element package MARC. The effects of using inner cruciform plates on the strength and ductility of steel bridge piers were investigated where the height of the inner cruciform plate was varied in the box section bridge piers. It was found that piers with inner cruciform plates show better performance than ordinary piers with regard to ductility and energy absorption capacity.