Index Catalog // ScholarsArchive@OSU

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:: : _______________________________ Christopher C. Higgins Many conventionally reinforced concrete deck girder bridges (RCDG

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:: Reinforced Concrete Deck Girder Bridges Subjected to Diagonal Tension Cracking. Abstract approved

Distortion-induced fatigue cracking of girder-to-crossbeam connection

Creator:: Aljutaili, Dhari S.
Abstract:: Oregon Department of Transportation’s bridge no. 9743b is a multi-span, two-girder steel deck bridge connecting the busy interstates 5 and 205. Vertical cracks have been detected in the welded girder-to-crossbeam connections at the bents. Distortion-induced fatigue is suspected to be responsible for the cracking. Linear elastic beam analysis, 2-D and...
Resource Type:: Masters Thesis
Full Text:: Mechanical Engineering presented on June 15, 2007. Title: Distortion-Induced Fatigue Cracking of Girder

Experimental behavior of wide-flange beams with web holes

Creator:: Horning, Richard Alan
Abstract:: Two built-up wide-flange beams with several large holes in each beam were tested to failure. Strains were measured by strain gages at various levels, located at the ends and center of typical holes, and deflections were measured optically at two points on each beam. Lateral bracing was provided to prevent...
Resource Type:: Masters Thesis
Full Text:: subject by testing actual specimens and comparing measured strains and deflections with computed values

Analysis of conventionally reinforced concrete bridge girders for low-cycle fatique in shear

Creator:: Forrest, Richard W. B.
Abstract:: Increasing load magnitudes and loss of reinforcing steel cross-sectional area from corrosion creates the potential for low-cycle fatigue (LCF) in conventionally reinforced concrete (CRC) bridge girders lightly reinforced for shear. LCF of reinforcing steel may be of particular concern. Little data are available for LCF of reinforcing steel without stress...
Resource Type:: Masters Thesis

A transistorized sonic generator and detector for finding Young's modulus of wooden beams

Creator:: Jaenicke, Richard Alex
Abstract:: Young's modulus, often called the modulus of elasticity, gives a measure of the stiffness of a material to an imposed load. The modulus of a wooden beam is most often obtained by destructive tests which destroy the specimen. If a practical method can be found to measure Young's modulus non-destructively,...
Resource Type:: Masters Thesis
Full Text:: professor are deeply appreciated. i TABLE OF CONTENTS INTRODUCTION BACKGROUND ON TESTING

Experimental studies of Vierendeel beam analysis

Creator:: Russell, William Clyde
Abstract:: Fabricated steel beam specimens with rectangular holes cut in the webs were subjected to load tests to analyze the behavior of the modified section. Beam-depth to hole-depth ratio was in all cases 2.0; however, ratio of hole length to hole height varied from 2.0 to 3.0. The primary instrumentation of...
Resource Type:: Masters Thesis
Full Text:: accurate predictions of the behavior of such beams. This thesis project in- volves the testing of beam

Creep of small wood beams under constant bending load

Creator:: Forest Products Laboratory (U.S.) and Clouser, William Sands, 1921-
Resource Type:: Technical Report
Full Text:: ). Creep As is well known, the static testing of materials is often not sufficient for the determination

The fracture toughness of medium density fiberboard and other fiber bridging composites

Creator:: Matsumoto, Noah T.
Abstract:: In many composites, fiber bridging develops as part of the fracture process. Fiber bridging invalidates many toughness evaluation methods such as the ASTM E399 and complicates the identification of crack length, which is a necessary parameter in energy methods. In order to measure the toughness of fiber bridging composites, an...
Resource Type:: Masters Thesis
Full Text:: experience, expertise and technical prowess in experimental testing and miscellaneous tasks. • Professor

Design and fatigue behavior of near-surface mounted CFRP bars for shear strengthening of RC bridge girders

Creator:: Johnson, Brandon Ang
Abstract:: Carbon fiber reinforced polymer (CFRP) materials are emerging as an effective means of strengthening and rehabilitating bridges. Near surface mounting (NSM) is a newer technique for application of CFRP for retrofitting of bridge members that provides advantages over conventional strengthening techniques. The technique is still new and uncertainties remain regarding...
Resource Type:: Masters Thesis
Full Text:: .................................................................................. 26 5.1 Full-Size Girder Specimens

ScholarsArchive@OSU

Shear repair methods for conventionally reinforced concrete girders and deep beams

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

Distortion-induced fatigue cracking of girder-to-crossbeam connection

Experimental behavior of wide-flange beams with web holes

Analysis of conventionally reinforced concrete bridge girders for low-cycle fatique in shear

A transistorized sonic generator and detector for finding Young's modulus of wooden beams

Experimental studies of Vierendeel beam analysis

Creep of small wood beams under constant bending load

The fracture toughness of medium density fiberboard and other fiber bridging composites

Design and fatigue behavior of near-surface mounted CFRP bars for shear strengthening of RC bridge girders

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