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Parametric Study Of Integral Abutment Bridge Using Finite Element Model, Asako Takeuchi
Parametric Study Of Integral Abutment Bridge Using Finite Element Model, Asako Takeuchi
Masters Theses
A parametric study of single-span integral abutment bridge (IAB) was conducted using finite element analysis to explore the effects of various load conditions, bridge geometries, and soil properties. This study investigated the difference between the live load distribution of traditional jointed bridges and integral abutment bridges (IABs) under HL-93 truck component load. The results showed that AASHTO live load distribution factors (LLDFs) were overly conservative by up to 50% to use for IABs. LLDFs for IABs proposed by Dicleli and Erhan (2008) matched well for interior girder moment, but they were unconservative for exterior girder moment by up to 20% …
Short And Long-Term Performance Of A Skewed Integral Abutment Prestressed Concrete Bridge, Rami Bahjat
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 …
Seismic Analysis Of Integral Abutment Bridges Considering Soil Structure Interaction, Reza Vasheghani Farahani
Seismic Analysis Of Integral Abutment Bridges Considering Soil Structure Interaction, Reza Vasheghani Farahani
Masters Theses
Integral abutment bridges are jointless bridges in which the deck is continuous and connected monolithically with the abutment walls supported typically by a single row of piles. This thesis focuses on the effects of two major parameters on the seismic behavior of an integral abutment bridge in Tennessee by considering soil-structure interaction around the piles and in back of the abutments: (1) clay stiffness (medium vs. hard) around the piles, and (2) level of sand compaction (loose vs. dense) of the abutment wall backfilling. Modal and nonlinear time history analyses are performed on a three dimensional detailed bridge model using …