Papers by Ishtiaque Tuhin
I would like to recognize Dr. Mostafa Tazarv, who was my advisor for this research. I found this ... more I would like to recognize Dr. Mostafa Tazarv, who was my advisor for this research. I found this project, which he proposed to me, very interesting and challenging yet extremely rewarding. His valuable insight knowledge, help, and advice throughout the course of the project made the process a lot smoother. He was so helpful and always encouraged me to learn new things, which are unforgettable steps in my academic arena. I am also very thankful to Dr. Nadim Wehbe, who was my academic advisor for more than a year. He secured my funding and allocated fund for my research. He gave us a lot of important instructions during our research. They, along with Dr.
Bridges are currently designed to withstand severe earthquakes without collapse. This design obje... more Bridges are currently designed to withstand severe earthquakes without collapse. This design objective is usually attained by ensuring large ductilities for columns. For reinforced concrete (RC) columns, large displacement capacities can be achieved through confinement, which allows significant yielding of the column longitudinal reinforcement without premature failure of the core concrete. Concrete can be confined using transverse reinforcement or external jackets (e.g. steel tube or fiber reinforced polymer wrap). Therefore, ductility of RC columns depends on confinement. A new design approach for RC columns is proposed in the present study in which large displacement capacities can be achieved incorporating a new detailing without the direct need of confinement. First the proposed detailing is discussed, which incorporates (1) external reinforcing steel bars restrained against buckling to develop plastic bending moments, (2) a heavy-duty steel pipe connecting the column to the ad...
Open Journal of Civil Engineering
Overhead sign-support bridges that allow displaying necessary information for travelers across th... more Overhead sign-support bridges that allow displaying necessary information for travelers across the multiple lanes in highways often use large message sign panels: static message sign (SMS) panels or dynamic message sign (DMS) panels. Along with conventional SMS panel, the use of DMS panel is increasing in highways over time owing to their effective capability to guide the travelers in real-time. A 230-ft long span 4-chord overhead steel truss bridge attached with SMS and DMS panel has been studied through extensive finite element analysis to observe the structural integrity. The static wind load was applied in model truss for four different configurations as per 2016 AASHTO LRFD design specification. The innovative structural detailing approach for truss end support and connection detailing for toll-equipment supporting frame was proposed based on static analysis. The present study will help engineers to design overhead sign support bridges by ensuring both public safety and structural integrity.
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Papers by Ishtiaque Tuhin