Impact of a Hybrid Girder Bridge on Live Load Distribution Factor
| Role | Name/Details |
|---|---|
| Principal Investigator | Dr. Nur Yazdani |
| Graduate Research Assistant | Md Yeasin Mostafiz |
Project Overview
On behalf of the Texas Department of Transportation (TxDOT), the University of Texas at Arlington has been assigned to conduct research on the behavior of the steel and concrete hybrid girder bridge. Steel and concrete hybrid girder bridge is that type of bridge in which, some girders are made of concrete, and some are steel. Interestingly, a hybrid bridge usually constructed in two different time frames. The principal focus of this research work is to explore the live load distribution factor for this type of non-uniform girder system. However, this research will also keep eyes on the dynamic impact, influence of lateral load transfer system like deck and diaphragm, differential deflection effect on deck due to the presence of different types of girders with different stiffness.
Project Goals
- Understanding Live Load Distribution: Investigate how live loads are distributed across hybrid girder bridges, combining steel and concrete girders.
- Evaluating Structural Behavior: Assess the dynamic impact and role of lateral load transfer systems in these bridges.
- Studying Differential Deflection Effects: Analyze the effects of differential deflection on the bridge deck due to varying girder stiffness.
- Development and Testing of Models: Create and calibrate a 3D finite element model based on field data to simulate the bridge behavior.
- Comprehensive Data Analysis: Analyze data from field tests and the finite element model for insights into the structural integrity of hybrid girder bridges.
- Construction Recommendations: Develop design and construction recommendations to improve bridge engineering practices.
- Submission of a Detailed Report to TxDOT: Submit a comprehensive report to the Texas Department of Transportation, contributing to the advancement of civil engineering.