Browsing by Author "Ramey, George Ed"

Now showing items 1-13 of 13

Automated Screening Tool for the Stability of Highway Bridges Subject to Scour

Donnee, Nicole (2008-05-15)

Most bridges in Alabama that are over shallow bodies of water, including small creeks, wetlands, and marshes, were designed so that the bridge superstructure is supported on pile bents. During major flood events, excessive ...

Bridge Pile Bent P-Delta Curves in Transverse Direction Using FB-Pier and GTSTRUDL Pushover Analysis Procedures

Hughes, Douglas (2005-08-15)

Extreme flood events may create large transverse water loads that cause piles of a bent to bend about their weak axes in addition to causing scour. A comparison of the nonlinear pushover analysis procedures and resulting ...

Determination of Elastic Constants and Damage in Ceramic Matrix Composites Using Ultrasonic Wave Speed Measurements

Spurlock, Chad (2006-12-15)

MATLAB programs were developed to compute the elastic constants and damage of ceramic matrix composites using ultrasonic wave speed measurements. The matrix of elastic stiffnesses, C, relates the material stresses and ...

Determination of Hurricane Surge Wave Forces on Bridge Superstructures and Design/retrofit Options to Mitigate or Sustain These Forces

Sawyer, Alvin (2008-05-15)

An increasingly common occurrence when strong hurricanes come ashore along the Gulf of Mexico is that the hurricane surge/surface waves lift and push the superstructures of coastline bridges from their support bents into ...

Documentation of the Rapid Replacement of Four GDOT Bridge Decks

Umphrey, Joshua (2006-05-15)

The Alabama Department of Transportation (ALDOT) has many interstate bridges near downtown Birmingham which have good substructures and superstructures, but suffer from significant deck cracking and deterioration. The ...

Early-age cracking of mass concrete structures

Meadows, Jason (2007-05-15)

Early-age cracking is a recurring problem in many mass concrete structures. Currently agencies tend only to limit the maximum temperature difference that may develop in a mass concrete structure in an attempt to mitigate ...

Evaluation of Restraint Stresses and Cracking in Early-age Concrete with the Rigid Cracking Frame

Whigham, Jared (2005-08-15)

Early-age cracking problems are common in a wide variety of concrete structures, ranging from bridge decks and piers, to pavements used for highways and airport runways. Numerous surveys conducted by state and federal ...

Evaluation of Self-Consolidating Concrete for Use in Prestressed Girder Applications

Roberts, James (2005-12-15)

Self-consolidating concrete (SCC) is a highly flowable, yet cohesive, concrete that is able to fill formwork and completely encapsulate any reinforcement without the need for external vibration. The use of SCC may help ...

An Evaluation of the Use of Self-Consolidating Concrete (SCC) for Drilled Shaft Applications

Bailey, Joseph (2005-08-15)

In drilled shaft construction, the recent development of sophisticated techniques for integrity and load testing has lead to the ability to assess the quality of drilled shaft foundations in terms of integrity and load ...

Fiber-Reinforced Polymer Strengthening of War Memorial Bridge—Installation, Load Testing, and Analysis

Carmichael, Benjamin (2005-12-15)

An assessment of the rehabilitation of a reinforced-concrete bridge using carbon fiber reinforced polymer (FRP) laminate materials is presented. The installation of FRP strips to girder bottoms in the positive moment section ...

Flood Debris Build-Up Loading and Assessment of Adequacy of ALDOT Bridge Pile Bents During Extreme Flood/Scour Events

Daniels, Joslyn (2005-08-15)

A description of a flood debris build-up loading and an assessment of the adequacy of a chosen group of typical ALDOT bridge pile bents having various loading conditions and under various amounts of scour are presented in ...

Nondestructive Evaluation of Prestressed Concrete Structures by Means of Acoustic Emissions Monitoring

Xu, Jian Gong (2008-12-15)

The acoustic emission (AE) technique has been found to be an informative nondestructive testing (NDT) method for evaluation of structures constructed with certain materials. While AE evaluation procedures and evaluation ...

Stability of Highway Bridges Subject to Scour

Walker, James (2008-12-15)

A common design/construction procedure for highway bridges in Alabama is the use of steel HP piles driven into a firm stratum with a length above ground/water up to the level of a concrete bent cap which supports the bridge ...