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Lateral load resistance of bridge piers under flexure and shear using factorial analysis
Highlights Material properties, reinforcement ratio, geometry and tie bar affect the bridge pier performance. Using factorial analysis, a detailed parametric study has been performed. Nonlinear pushover analyses conducted to determine the effect of different factors on limit states. Various limit states including cracking, yielding and crushing behavior have been observed. Generalized equation is proposed to predict the cracking, crushing and yielding displacement of bridge columns.
Abstract Tie spacing, concrete and steel properties, amount of reinforcement and column height are factors (or parameters) that can affect the performance of bridge piers under lateral loads. These parameters differ significantly from older bridges to modern bridges. Here, a detailed parametric study has been performed to understand the effects of these factors and their interactions on limit states of bridge columns using factorial analysis. Fiber modeling approach has been implemented to determine the performance of bridge piers (such as cracking base shear, cracking displacement, yield base shear, yield displacement, crushing base shear/shear capacity, displacement at crushing/shear failure and ductility) under lateral loads. This study shows that simple predictive equations can be derived from the parametric study, to estimate the cracking, crushing and yielding displacement of a bridge pier with reasonable accuracy.
Lateral load resistance of bridge piers under flexure and shear using factorial analysis
Highlights Material properties, reinforcement ratio, geometry and tie bar affect the bridge pier performance. Using factorial analysis, a detailed parametric study has been performed. Nonlinear pushover analyses conducted to determine the effect of different factors on limit states. Various limit states including cracking, yielding and crushing behavior have been observed. Generalized equation is proposed to predict the cracking, crushing and yielding displacement of bridge columns.
Abstract Tie spacing, concrete and steel properties, amount of reinforcement and column height are factors (or parameters) that can affect the performance of bridge piers under lateral loads. These parameters differ significantly from older bridges to modern bridges. Here, a detailed parametric study has been performed to understand the effects of these factors and their interactions on limit states of bridge columns using factorial analysis. Fiber modeling approach has been implemented to determine the performance of bridge piers (such as cracking base shear, cracking displacement, yield base shear, yield displacement, crushing base shear/shear capacity, displacement at crushing/shear failure and ductility) under lateral loads. This study shows that simple predictive equations can be derived from the parametric study, to estimate the cracking, crushing and yielding displacement of a bridge pier with reasonable accuracy.
Lateral load resistance of bridge piers under flexure and shear using factorial analysis
Reza, Samy Muhammad (author) / Alam, M. Shahria (author) / Tesfamariam, Solomon (author)
Engineering Structures ; 59 ; 821-835
2013-12-09
15 pages
Article (Journal)
Electronic Resource
English
Lateral load resistance of bridge piers under flexure and shear using factorial analysis
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