Browsing by Author "Marshall, Justin"

Now showing items 1-20 of 36

3-D Model Development of Metal Building Systems with Hard Walls

Langley, Michael (2016-04-05)

Metal Buildings with precast concrete or masonry walls (hard walls) have been identified by analytical modeling, shake table tests, and earthquake reconnaissance as being susceptible to collapse. While the steel frames ...

Acoustic Emission Testing of Repaired Prestressed Concrete Bridge Girders

Hadzor, Thomas (2011-05-04)

Acoustic emission (AE) monitoring has proven to be a useful nondestructive testing tool in ordinary reinforced concrete beams. Over the past decade, however, the technique has been used to test other concrete structures ...

BEHAVIOR AND CAPACITY OF THERMALLY RESTRAINED MOMENT FRAME MEMBERS DURING COMPARTMENT FIRE

Chinivar, Supriya Nagraj (2021-07-27)

In the event of a fire hazard, structural resistance depends on the ability to resist a comprehensive set of load combinations comprising the gravity loads and the thermally induced fire loads without undergoing failure. ...

Behavior of a Damaged Prestressed Concrete Bridge Repaired with Fiber-Reinforced Polymer Reinforcement

Bullock, Wesley (2011-08-08)

After the construction of elevated portions of I-565 in Huntsville, Alabama, cracks were discovered in numerous prestressed concrete bulb-tee bridge girders that were constructed to exhibit continuous behavior in response ...

Breaching of Concrete Masonry Unit Walls due to Direst Shear when Subjected to Blast Loading

Brannon, Daniel (2012-04-10)

This report details the steps needed to formulate an engineering design equation to address the potential for breaching of concrete masonry walls in between grout cells when subjected to blast loading. Prior to the beginning ...

Catenary Action in Steel Framed Structures with Autoclaved Aerated Concrete Infill & Buckling Restrained Braces

Eletrabi, Haitham (2014-12-04)

The progressive collapse of structures is considered a major concern for designers since the Ronan Point incident. Preventing and mitigating progressive collapse has become a serious issue for all types of buildings. ...

Characterization of Multi-Phase Performance-Based Passive Control Systems

Rawlinson, Taylor (2011-10-27)

Typical passive control devices have inherent strengths and weaknesses as seismic protection systems. A Multi-phase Passive Control System (MPCS) combines two types of passive control devices in a system in order to offset ...

Development of composite beam theory and its application in composite and prestressed concrete structures

Bai, Fengtao (2016-05-13)

For some complex structural engineering problems like behavior of sandwich structures and prestressed concrete structures, extensive experimental works and finite element analyses might not be able to help understand 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 ...

Earthquake Induced Inelastic Demands on Buckling Restrained Braces

Xie, Zhongliang (2015-07-29)

Buckling restrained braces (BRBs) show an increasing popularity in modern designs due to their high ductility capacity over conventional braces. Non-linear tests on isolated BRBs have shown the symmetrical hysteresis ...

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 Critical and Essential Concrete Highway Bridges in a Moderate Seismic Hazard

Panzer, Jordan (2014-01-21)

The task of this thesis is to determine if the response of critical and essential bridges designed using the AASHTO LRFD Bridge Design Specifications would meet performance requirements when subjected to the moderate seismic ...

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. ...

Experimental Testing and Analysis of S50 Beam with Finite Element Modeling of Splice Connection

Chitty, Hunter (2021-12-08) ETD File Embargoed

Large Area Maintenance Shelters, LAMS, are commonly used as deployable shelters by the US Air Force to store and maintain equipment. This work is specific to the LAMS located at Tyndall Air Force Base manufactured by ...

Experimental Testing and Analytical Modeling of Driven Steel Pile Bridge Bents

Campbell, Jonathon (2015-10-14)

One of the most common bridge types in Alabama is the multi-span bridge with precast girders and intermediate bents consisting of driven steel piles and a reinforced concrete cap. Due to its common use, effective analysis ...

Experimental Testing of a Rotational Friction Connection for Use with Precast Concrete Cladding Panels in Metal Building Systems

Sellers, Vincent (2017-11-27)

Lightweight clad metal building systems have been shown to exhibit excellent performance in seismic events; however, metal building systems clad in masonry or precast concrete panels (hard walls) have been shown through ...

Fabric Structure Strength and Structural Integrity of Large Area Maintenance Shelters (LAMS)

Fittro, Todd (Preston) (2018-12-19)

Large Area Maintenance Shelters (LAMSs) are deployed worldwide by the United States Air Force. The U.S. Air Force uses LAMSs as storage facilities and hangars for vehicles and aircrafts alike. The inherent low weight and ...

Factors Influencing Catenary Behavior in Ductile Steel-Framed Structures

Kantrales, George (2012-07-02)

Historical precedent has established progressive collapse as a phenomenon characterized by the potential for extreme structural damage and loss of life. In an attempt to mitigate such behavior in conventional structures, ...

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 Modelling of Large Area Maintenance Shelters and Comparison to Experimental Results

Norred, Culver (2021-08-16) ETD File Embargoed

Large area maintenance shelters (LAMS) are used as temporary structures by the United States Air Force to provide shelter for helicopters, tanks, wheeled vehicles, and aircraft. There are several different brands of LAMS ...