Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Parametric study on the non-contact splices at drilled shaft to bridge column interface based on multiscale modeling approach
Highlights Eleven noncontact splices with geometric inconsistency are designed. The experimental observations are validated by multiscale FEM analysis. The effect of concrete compressive strength is comparatively discussed. Effect of lap spacing, stirrup ratio and lap length is considered. The variation of structural stiffness and cracking mechanism is compared.
Abstract The structural performance of large-scale rectangular column-circular drilled shaft interface using non-contact splices is investigated through experimental study and numerical analysis. The influences of lap spacing and the length of overlapped longitudinal bars, the stirrup ratio and the variation of concrete strength on the global mechanical response and mesoscale cracking pattern are analyzed. According to the provisions in current design guidelines, a total of eleven specimens are designed for parametric study. The macroscopic load-displacement curves, the cracking pattern of concrete of designed specimens are comparatively discussed. The experimental results matched well with that of the FEM analysis. The research findings can provide valuable guidance on the construction and design of non-contact lap splices with geometric irregularities in the following Phase II of this project.
Parametric study on the non-contact splices at drilled shaft to bridge column interface based on multiscale modeling approach
Highlights Eleven noncontact splices with geometric inconsistency are designed. The experimental observations are validated by multiscale FEM analysis. The effect of concrete compressive strength is comparatively discussed. Effect of lap spacing, stirrup ratio and lap length is considered. The variation of structural stiffness and cracking mechanism is compared.
Abstract The structural performance of large-scale rectangular column-circular drilled shaft interface using non-contact splices is investigated through experimental study and numerical analysis. The influences of lap spacing and the length of overlapped longitudinal bars, the stirrup ratio and the variation of concrete strength on the global mechanical response and mesoscale cracking pattern are analyzed. According to the provisions in current design guidelines, a total of eleven specimens are designed for parametric study. The macroscopic load-displacement curves, the cracking pattern of concrete of designed specimens are comparatively discussed. The experimental results matched well with that of the FEM analysis. The research findings can provide valuable guidance on the construction and design of non-contact lap splices with geometric irregularities in the following Phase II of this project.
Parametric study on the non-contact splices at drilled shaft to bridge column interface based on multiscale modeling approach
Chen, Hongbing (Autor:in) / Masud, Mahadi (Autor:in) / Sawab, Jamshaid (Autor:in) / Huang, Hsuan Wen (Autor:in) / Xu, Bin (Autor:in) / Mo, Y.L. (Autor:in) / Hsu, Thomas T.C. (Autor:in)
Engineering Structures ; 180 ; 400-418
20.11.2018
19 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch