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Full-Text Articles in Structural Engineering

Short And Long-Term Performance Of A Skewed Integral Abutment Prestressed Concrete Bridge, Rami Bahjat Nov 2014

Short And Long-Term Performance Of A Skewed Integral Abutment Prestressed Concrete Bridge, Rami Bahjat

Masters Theses

This study presents the behavior of a precast skewed integral abutment bridge (IAB) using the recently developed NEXT-F Beam section in particular. In order to understand the bridge response, a 3-dimensional finite element model of a bridge (Brimfield Bridge) was developed to examine the thermal effect on the response of the bridge structural components. Eighteen months of field monitoring including abutments displacements, abutment rotations, deck strains, and beam strains was conducted utilizing 136 strain gauges, 6 crackmeters, and 2 tiltmeters. The behavior of the NEXT beams during construction was examined by conducting hand calculation considering all factors that could affect …


Field And Analytical Studies Of The First Folded Plate Girder Bridge, Man Hou Sit Aug 2014

Field And Analytical Studies Of The First Folded Plate Girder Bridge, Man Hou Sit

Masters Theses

Integral abutment bridges are very common for short span bridges in the United State due to their less construction and maintenance cost and generally good performance. This thesis studies the first integral abutment bridge using Folded Plate Girder (FPG) Bridge System. The bridge is instrumented with a variety of gauges to capture the behavior of the bridge, and a total of two year and one month [11/2011~12/2013] of data are collected and long-term data monitoring is performed. Live load test and long term temperature effect on the bridge are studied using finite element modeling and compared with actual field data. …


Performance Of Circular Reinforced Concrete Bridge Piers Subjected To Vehicular Collisions, Nevin L. Gomez Aug 2014

Performance Of Circular Reinforced Concrete Bridge Piers Subjected To Vehicular Collisions, Nevin L. Gomez

Masters Theses

Vehicle collisions with bridge piers can result in significant damage to the support pier and potentially lead to catastrophic failure of the whole structure. The Nation’s aging infrastructure suggests that many structures no longer meet current design standards, placing many bridge susceptible to failure if subjected to an extreme loading event. This research aims to study the structural response of reinforced concrete bridge piers subjected to vehicle collisions. A sensitivity analysis is conducted to observe the causes of shear and bending failures of bridge piers subjected to vehicle collision. Parameters, such as pier diameter, transverse reinforcement spacing, vehicle impact velocity, …