Fahim Bhuiyan

Affiliation

California Department of Transportation

Biography

I currently serve as a transportation engineer, civil at Caltrans HQ. I work at the Office of Geotechnical Design Policy and Practise (OGDPP) at Caltrans HQ.

As a Ph.D. student at the University of Nevada, Reno, I worked on a project entitled "Lateral Analysis Guidelines for Drilled Shafts in Nevada Based on LRFD Framework". This NDOT-funded project aimed at developing a unique, economical, more accurate, and validated tool to define LRFD-based design guidelines for large-diameter drilled shafts under lateral loading. I developed a MATLAB-based finite difference program, NVShaft, to achieve this goal. Various soil resistance models have been included in the program’s library. Mobilization of side shear, tip shear, and tip moment resistances, typically ignored in larger diameter shafts can be simulated in a finite-difference model. A robust definition of point-of-fixity, a parameter required for structural design, based on improved lateral analysis was another goal of this project. NVShaft can also perform t-z analysis, allowing users to simulate conventional top-loaded and bi-directional static axial load tests.