Index Catalog // ScholarsArchive@OSU

Shear capacity assessment of corrosion-damaged reinforced concrete beams

Creator:: Farrow, William C.
Abstract:: The research presented here is a study to determine the effect of shear reinforcement corrosion on the shear capacity in conventionally reinforced concrete (CRC) bridge elements. A total of 14 CRC beams were tested using three stirrup spacings (8, 10, and 12-inch). Six of the beams included the influence of...
Resource Type:: Masters Thesis
Full Text:: Assessment of Corrosion-Damaged Reinforced Concrete Beams Abstract Approved: Christopher C. Higgins The

Development of acoustic emissions testing procedures applicable to conventionally reinforced concrete deck girder bridges subjected to diagonal tension cracking

Creator:: Lovejoy, Steven C.
Abstract:: A need exists to develop a non-destructive testing technique that can identify the formation and propagation of diagonal tension cracks in conventionally steel reinforced concrete deck girder (RCDG) highway bridges in the State of Oregon. Such a technique could be included into a structural health monitoring (SHM) system installed on...
Resource Type:: Dissertation
Full Text:: Development of Acoustic Emissions Testing Procedures Applicable to Conventionally Reinforced Concrete Deck

Freeze-thaw durability of reinforced concrete deck girders strengthened for shear with surface-bonded carbon fiber-reinforced polymer

Creator:: Mitchell, Mikal Maxwell
Abstract:: Long-term durability of surface-bonded carbon fiber-reinforced polymer (CFRP) U-wraps for shear strengthening of reinforced concrete (RC) bridge members remains uncertain due to the limited field experience with these materials. This paper provides experimental results from the testing of full-scale RC bridge girder specimens after exposure to prolonged freeze-thaw cycling. CFRP...
Resource Type:: Masters Thesis
Full Text:: presented on July 8, 2008. Title: Freeze-Thaw Durability of Reinforced Concrete Deck Girders

Shear repair methods for conventionally reinforced concrete girders and deep beams

Creator:: Howell, Daniel A.
Abstract:: Many conventionally reinforced concrete deck girder bridges (RCDG) and their intermediate supporting bent caps were designed during the Eisenhower interstate era of the 1950’s with the AASHO design equations at the time, which subsequently place higher demand on the concrete. The referenced components may exhibit diagonal cracking due to the...
Resource Type:: Dissertation
Full Text:: Methods for Conventionally Reinforced Concrete Girders and Deep Beams. Abstract approved

Nonlinear finite element analysis of reinforced concrete structures strengthened with FRP laminates

Creator:: Chansawat, Kasidit
Abstract:: The Horsetail Creek (HC) bridge is an example of an Oregon bridge that was classified as structurally deficient and was not designed to withstand earthquake (EQ) excitations. A fiber-reinforced polymer (FRP) rehabilitation was performed on the HC bridge to increase flexural and shear capacities for traffic loads. However, a seismic...
Resource Type:: Dissertation

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:: were derived from panel testing of large-sized reinforced concrete elements loaded in various

Transport of chloride ions during accelerated cathodic protection of reinforced concrete structures

Creator:: Rehani, Manu
Abstract:: Chloride ion migration was studied under accelerated cathodic protection conditions using 6" x 6" x 6" mortar blocks of varying initial chloride content and water to cement ratios. An iron mesh embedded parallel to one face in the blocks acted as the cathode and zinc was thermally sprayed on the...
Resource Type:: Masters Thesis
Full Text:: protection of reinforced concrete structures AN ABSTRACT OF THE THESIS OF Manu Rehani for the degree of

Electrochemical modeling of cathodic protection systems applied to reinforced concrete structures

Creator:: Muehlenkamp, Erik B.
Abstract:: A numerical model for the cathodic protection of steel in reinforced concrete is developed. Parameters are set to represent a three-dimensional section of a bridge beam exposed to the atmosphere and coated with a thermally sprayed zinc anode. Both diffusion of oxygen and conduction of charge within the concrete are...
Resource Type:: Masters Thesis
Full Text:: Modeling of Cathodic Protection Systems Applied to Reinforced Concrete Structures Abstract approved A

Finite element modeling of reinforced concrete beams externally strengthened by FRP composites

Creator:: Potisuk, Tanarat
Abstract:: Three-dimensional finite element models are developed to simulate the behavior of four fill-scale reinforced concrete beams. The beams are constructed with different fiber-reinforced polymer (FRP) strengthening schemes, and are modeled using ANSYS, a commercially available finite element analysis program. The experimental beams replicate the transverse beams of the Horsetail Creek...
Resource Type:: Masters Thesis

Strengthening reinforced concrete beams using FRP composite fabrics : full-scale experimental studies and design concept verification

Creator:: McCurry, David D.
Abstract:: The Horsetail Creek Bridge (HCB), constructed in 1914, is located along the Historic Columbia River Highway in Oregon. The original cross beams from the HCB were substantially deficient in shear strength, particularly for the projected increase in traffic loads. One control beam and three beams with varying configurations of a...
Resource Type:: Masters Thesis

ScholarsArchive@OSU

Shear capacity assessment of corrosion-damaged reinforced concrete beams

Development of acoustic emissions testing procedures applicable to conventionally reinforced concrete deck girder bridges subjected to diagonal tension cracking

Freeze-thaw durability of reinforced concrete deck girders strengthened for shear with surface-bonded carbon fiber-reinforced polymer

Shear repair methods for conventionally reinforced concrete girders and deep beams

Nonlinear finite element analysis of reinforced concrete structures strengthened with FRP laminates

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

Transport of chloride ions during accelerated cathodic protection of reinforced concrete structures

Electrochemical modeling of cathodic protection systems applied to reinforced concrete structures

Finite element modeling of reinforced concrete beams externally strengthened by FRP composites

Strengthening reinforced concrete beams using FRP composite fabrics : full-scale experimental studies and design concept verification

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