Browsing by Author "Barnes, Robert"

Now showing items 21-40 of 70

Development of User-Guided Program for Predicting Time-Dependent Deformations in Prestressed Bridge Girders

Schrantz, Claire (2012-01-12)

A Visual Basic (VB) computer program was developed to predict time-dependent deformations and associated material stresses in prestressed concrete bridge girders. The VB program allows the user to select a model for the ...

Development, Testing, and Analysis of a Rotational Friction Connection for Improving the Seismic Performance of Metal Building Systems with Hard Walls

Langley, Michael (2018-07-27)

The use of metal building systems has become commonplace in today’s society. For well over two decades, the performance of metal building systems during seismic events has been the subject of intense research. It was ...

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 ...

Durability of Nitinol for Structural Applications

McCarty, David (2006-08-15)

Nitinol is a shape memory alloy that has recently been studied for its suitability as a material in energy dissipation devices in structures. The alloy has excellent structural capabilities in terms of strength and ...

Early-Age Behavior of Lightweight Aggregate Concrete

Byard, Benjamin (2011-11-28)

Early-age cracking can be a severe problem in concrete as it can reduce the service life of the structure. In this project the early-age behavior of concrete was measured, evaluated, and modeled. The early-age stress ...

The Effect of Initial Curing Temperature and Duration on the 28-Day Compressive Strength of Concrete

White, Jackson (2023-04-19)

The objective of this study was to determine the effect of initial curing temperature and duration on the 28-day compressive strength of concrete. To determine the relationship between initial curing temperature and duration ...

Effect of Lightweight Aggregate on Early-Age Cracking of Mass Concrete

Tankasala, Aravind (2017-12-06)

Early-age cracking in mass concrete structures is a severe problem which could lead to long-term serviceability related problems in the structure. In this dissertation, the effect of using lightweight aggregates (LWAs) on ...

The Effectiveness of Self-Consolidating Concrete (SCC) for Drilled Shaft Construction

Dachelet, Darren (2008-08-15)

Due to increasing design requirements and the advancement in technology, deep foundations have become larger and more congested over the years. Reinforcement congestion required to resist high lateral forces, has lead to ...

The Effects of Blast Loading on the Interface of Concrete Masonry Units and Mortar

Doan, Kelsey (2019-04-18)

Masonry has always been a very efficient building material because of its low cost, availability, versatility, and construction simplicity. In terms of blast protection, masonry presents an enormous challenge: when ...

Evaluation of Early-Age Cracking Sensitivity in Bridge Deck Concrete

Rao, Akash (2008-12-15)

Early-age cracking is a problem in bridge deck concrete as it can have several detrimental effects on long-term behavior and durability. The primary objective of this project was to evaluate the early-age cracking tendency ...

Evaluation of Nondestructive Test Methods for Concrete Bridge Deck Condition Assessment

Coleman, Zachary (2021-07-14)

To facilitate locating subsurface concrete bridge deck defects and determining their corresponding severity, departments of transportation are switching to nondestructive test (NDT) methods. However, the difficulty in ...

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 Semi-Adiabatic Calorimetry to Quantify Concrete Setting

Weakley, Richard (2009-12-14)

Although setting is routinely measured in practice, current methods for determining concrete setting have been criticized for being impractical, arbitrary, and lacking correlation to field data. In recent years attempts ...

Evaluation of Shear Tab Connections as Supplemental Energy Dissipators

WU, HONGYANG (2022-11-04)

As structural engineering practice moves from life-safety to functional recovery after a significant seismic event, taking advantage of structural components to enhance the energy dissipation of a structure will be important. ...

Evaluation of the Maturity Method to Estimate Concrete Strength in Field Applications

Nixon, Jeffrey (2006-05-15)

Estimating the strength of concrete is essential to contractors and engineers to allow concrete construction operations to proceed safely and expediently. The maturity method is a technique that allows the in-place concrete ...

Experimental Evaluation of the Static Strength and Ductility of Large Diameter Shear Studs in Composite Bridge Construction

Veclotch, Jason (2013-04-19)

A number of bridges in the United States consist of steel girders with concrete decks attached via shear studs which will require replacement in the future. With a growing interest in rapid deck replacement for bridges ...

Feasibility Studies on the Design and Usage of Steel Pile Piles for ALDOT Bridges

Sharma, Rosy (2023-08-09)

Large diameter steel pipe piles provide an efficient and cost-effective alternative to conventional reinforced concrete bridge piles (drilled shafts) and steel piles (HP-piles). The steel pipe columns offer increased ...

Field Evaluation of Near-Surface Mounted, Fiber-Reinforced Polymer Strips for Strengthening of a Continuous Reinforced Concrete Bridge

Childs, William (2016-04-27)

The Letohatchee bridge is a continuous, reinforced concrete, deck-girder bridge maintained by the Alabama Department of Transportation (ALDOT) along AL 97 over I-65 near Letohatchee, Alabama. The bridge is deficient in ...

Finite Element Modeling of Skewed Reinforced Concrete Bridges and the Bond-slip Relationship Between Concrete and Reinforcement

Li, Xin (2007-12-15)

A bridge deck on US 331 near Montgomery, AL developed transverse and longitudinal cracking a few months after construction was completed. A refined finite element model of this continuous, skewed, composite bridge was ...

Finite Element Simulation and Assessment of Single-Degree-of-Freedom Prediction Methodology for Insulated Concrete Sandwich Panels Subjected to Blast Loads

Newberry, Charles M. (2011-01-05)

This report discusses simulation methodologies used to analyze large deflection static and dynamic behavior of foam-insulated concrete sandwich wall panels. Both conventionally reinforced cast-on-site panels and ...