Index Catalog // ScholarsArchive@OSU

Analysis of diagonally cracked conventionally reinforced concrete girders in the service load range

Creator:: Robelo, Melissa J.
Abstract:: Performance evaluation of conventionally reinforced concrete (CRC) bridge superstructure elements with diagonal cracks is of interest to the bridge engineering community. Standardized methods to predict service-level stress magnitudes in cracked bridge girders under combined bending and shear forces are not available. An analysis procedure was developed to determine the response...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Melissa J. Robelo for the degree

Seamless Topobathymetric River Mapping Through Multi-Sensor Data Integration: Lidar, Sonar, RTK GNSS and Structure from Motion

Creator:: Kellum, Kory and Kellum, Kory E.
Abstract:: Seamless, high-resolution topobathymetric digital elevation models (DEMs) of rivers are important for generating hydrodynamic models, studying water quality and related ecological issues, modeling flood vulnerability, and numerous other applications. However, such DEMs can be difficult to generate, due to a lack of topographic and bathymetric source data. Even where the...
Resource Type:: Capstone Project
Full Text:: Integration: Lidar, Sonar, RTK GNSS and Structure from Motion Abstract Approved: Christopher E

Design, analysis and evaluation of bridge superstructures for live loads

Creator:: Turan, O. Tugrul
Abstract:: Due to age, original design that is deficient by modern standards, inadequate maintenance, environmental conditions, and increasing loads, large numbers of bridges in United States and elsewhere are classified as deficient and in need of rehabilitation or replacement. According to a national bridge inventory established by the Federal Highway Administration,...
Resource Type:: Dissertation
Full Text:: approved: ___________________________________________________________ Christopher C. Higgins

Carbonation of Mid-Twentieth Century Reinforced Concrete Bridges in Oregon

Creator:: Folkestad, Jill Louise
Abstract:: Carbonation of Carbon is of concern for reinforced concrete bridges. While long-term environmental deterioration of structures is unavoidable, protective design allows a structure to fulfill its service life without any significant serviceability or strength loss due to deterioration. Understanding the process of concrete carbonation and the effect it has on...
Resource Type:: Honors College Thesis
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Design and environmental performance of near-surface mounted carbon fiber reinforced polymer strips for shear strengthening reinforced concrete bridge girders

Creator:: Goebel, Jacob Hans
Abstract:: During the interstate expansion of the 1950s, many conventionally reinforced concrete deck girder bridges were built throughout the country. These now vintage bridges commonly exhibit diagonal cracking and rate inadequately for shear, thus they are candidates for shear strengthening to extend their useful life. Near-surface mounted (NSM) retrofitting is a...
Resource Type:: Masters Thesis
Full Text:: : Christopher C. Higgins During the interstate expansion of the 1950s, many conventionally reinforced

Investigation, analysis and design of an experiment to test ponding loads on flexible roof systems

Creator:: Stark, Duncan
Abstract:: While damages due to ponding are common and expensive, provisions for design and construction of flat roof systems lack guidance regarding these loads. The goal of this research is to present methods of designing or building flat roofs that are less vulnerable to this condition. An investigation of the literature,...
Resource Type:: Honors College Thesis
Full Text:: Dr. Christopher Higgins While damages due to ponding are common and expensive, provisions for

Behavior and analysis of pile caps with poor anchorage details

Creator:: Sorentino, Anthony William
Abstract:: Pile caps are structural elements used to transmit loads from structural columns into pile groups. A pile cap is generally constructed of reinforced concrete and contains only minimal flexural reinforcing steel. Using modern design methods, the anchorage of the flexural steel may limit the design capacity of existing pile caps....
Resource Type:: Masters Thesis
Full Text:: : ______________________________________________________ Christopher C. Higgins Pile caps are structural elements used to transmit loads from

Methods for strengthening flexural steel details in reinforced concrete bridge girders using a near-surface mounted retrofitting technique

Creator:: Amneus, Deanna
Abstract:: Many older reinforced concrete deck girder (RCDG) bridges contain straight bar terminations of flexural reinforcement. Common bridge design practice of the 1950s did not consider the additional demands on the terminated bars from shear and flexure. Moreover, more stringent code specifications and heavier permit trucks contribute to the insufficient ratings...
Resource Type:: Masters Thesis
Full Text:: Christopher C. Higgins Many older reinforced concrete deck girder (RCDG) bridges contain straight

Radiometric Calibration of EAARL‐B Bathymetric Lidar Data

Creator:: Wilson, Nicholas C.
Abstract:: The Experimental Advanced Airborne Research Lidar ‐ B (EAARL‐B), which was built and deployed by the U.S. Geological Survey (USGS) in 2014, is a novel topographic‐bathymetric lidar system. While retaining a number of features that were pioneered in the original National Aeronautics and Space Administration (NASA) EAARL system (e.g., low...
Resource Type:: Masters Thesis
Full Text:: . Abstract approved: ______________________________________________________ Christopher E. Parrish The

Wind induced torsional fatigue behavior of truss bridge verticals

Creator:: Keller, Philipp
Abstract:: The Astoria-Megler Bridge is a 6.6 kilometer (4.1 mile) long bridge, connecting Oregon and Washington on US 101, with a continuous steel truss main span of 376 m (1232 ft). It is the second longest main span bridge of this type in the world. Due to vortex shedding, some of...
Resource Type:: Masters Thesis
Full Text:: Christopher C. Higgins The Astoria-Megler Bridge is a 6.6 kilometer (4.1 mile) long bridge, connecting

ScholarsArchive@OSU

Analysis of diagonally cracked conventionally reinforced concrete girders in the service load range

Seamless Topobathymetric River Mapping Through Multi-Sensor Data Integration: Lidar, Sonar, RTK GNSS and Structure from Motion

Design, analysis and evaluation of bridge superstructures for live loads

Carbonation of Mid-Twentieth Century Reinforced Concrete Bridges in Oregon

Design and environmental performance of near-surface mounted carbon fiber reinforced polymer strips for shear strengthening reinforced concrete bridge girders

Investigation, analysis and design of an experiment to test ponding loads on flexible roof systems

Behavior and analysis of pile caps with poor anchorage details

Methods for strengthening flexural steel details in reinforced concrete bridge girders using a near-surface mounted retrofitting technique

Radiometric Calibration of EAARL‐B Bathymetric Lidar Data

Wind induced torsional fatigue behavior of truss bridge verticals

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