Effective Stiffness and Seismic Response Modification Models Recommended for Cantilever Circular Columns of RC Bridges, Second Part: Collapse Prevention Limit State
نویسندگان
چکیده
This paper aims to assess the structural overstrength (R), seismic behaviour factor (Q), and effective inertia (keff), of which elastic stiffness (Keff) is a function, i.e., Keff reinforced concrete (RC) cantilever columns with solid circular sections in urban bridges. The R Q factors proposed design codes have been based mainly on an empirical basis. However, some studies suggest that, case RC bridge columns, both are determined by range geometric parameters. These results indicate that equations incorporating main parameters rather than use fixed values, appropriate method for estimating values R, keff columns. Therefore, confirm relation between mechanical properties concrete, aspect ratio length–depth, axial load–strength column, as well its longitudinal reinforcement steel ratio. Finally, research proposes models recommended collapse prevention limit state cantilevered
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ژورنال
عنوان ژورنال: Buildings
سال: 2023
ISSN: ['2075-5309']
DOI: https://doi.org/10.3390/buildings13102423