Index Catalog // ScholarsArchive@OSU

Establishing a through-boring pattern and method of test for utility poles

Creator:: Elkins, Lori A.
Abstract:: The goal of this study was to optimize a through-boring pattern that will provide adequate preservative penetration while minimizing the reduction in overall pole bending strength. Hole spacing was developed using longitudinal and transverse chemical penetration data from previous studies. Finite element analysis was used as a preliminary assessment tool...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Lori A. Elkins for the degree of

Hybridized framing to modify load paths and enhance wood shearwall performance

Creator:: Bultena, Sarah M.
Abstract:: Heavy timber framing relies primarily on bracing to withstand lateral loads due to earthquakes and wind events. Bracing configurations in heavy timber framed buildings vary widely and include cross bracing, knee bracing, and other geometries. Many heavy timber frames constructed during colonial American times are still standing, exceeding the expected...
Resource Type:: Masters Thesis
Full Text:: 1 AN ABSTRACT OF THE THESIS OF Sarah M. Bultena

Development of a method to elucidate biodegradation pathways of chlorinated one and two carbon compounds using a gas-permeable-membrane-supported methylotrophic biofilm

Creator:: Ryan, Kelly M.
Abstract:: A gas-permeable-membrane-supported (GPMS) biofilm consisting of methylotrophic bacteria was effective in degrading chlorinated methanes, ethanes, and ethenes. The biofilm was developed on a gas-permeable fabric (Goretex, W.L.Gore & Associates, Elkton, Maryland) that divided a reactor vessel into a liquid compartment and a gas compartment. Goretex is a nylon-backed teflon mesh...
Resource Type:: Masters Thesis
Full Text:: methylotrophic biofilm AN ABSTRACT OF THE THESIS OF Kelly M. Ryan for the degree of Master of Science in Civil

Effect of Hole Edge Distance on Strength of Through-Bored Utility Poles

Creator:: Romanaggi, Bennett T.
Abstract:: There are over 130 million wood poles supporting electrical transmission and distribution lines in the U.S. The vast majority of these poles are preservative treated to prolong their useful life. In some cases, however, the depth of treatment is relatively shallow, leaving a deep zone of moderately durable, untreated heartwood....
Resource Type:: Masters Thesis
Full Text:: effect on the mechanical properties of poles (Brown and Davidson 1961, Graham 1969, Elkins 2005

The effects of nail bending-yield stress and biological deterioration on the cyclic performance of shearwalls

Creator:: Anderson, Erin N.
Abstract:: Key parts of the lateral force resisting system in wood-frame buildings are the shearwafls and the connections. The connections in wooden buildings are the primary source of ductility and energy dissipation; these are essential properties when buildings are exposed to lateral forces, such as wind and earthquakes. Shearwall design is...
Resource Type:: Masters Thesis
Full Text:: SASHFIT (Elkins and Kim 2003b). These hysteretic parameters were used in conjunction with CASHEW to model

Aqueous-organic partition coefficients for Rn-222 and their application to Radon analysis by liquid scintillation methods

Creator:: Cantaloub, Michael G.
Abstract:: A method is described for determining the partition coefficient, K, for radon gas distributed between an aqueous phase and an organic solvent. The method uses sequential extractions of radon into equal volume aliquots of organic solvent. The radon-laden organic liquid is then counted on a liquid scintillation analyzer with alpha-beta...
Resource Type:: Masters Thesis
Full Text:: . Nucl. Chem., Letters 186(2):119-127; 1994. Blackburn, R.; Al-Masri, M. S. Determination of radon-222

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:: degrees. ............................. 28 2.5 (Mμ,Vμ), (Mn, Vn), and μ,k k μ,k k μ,k kρ ±1σ ,ρ ±2σ ,ρ

Field and Numerical Investigation of Pavement Vehicle Interaction Related Excess Fuel Consumption and Delamination

Creator:: Estaji, Mostafa
Abstract:: With ever-increasing number of vehicles actively using the state and national roadway network, transportation-related fuel consumption and consequent pavement structural damage rises. In this dissertation, the impact of material-induced dissipated energy mechanisms in asphalt and concrete pavements were analyzed using field measurements in California and finite element modeling of pavement...
Resource Type:: Dissertation
Full Text:: structures. First, surface texture with wavelengths of 0.5 m-50 m in the wheelpath, i.e. roughness

Environmental durability of reinforced concrete deck girders strengthened with surface-bonded carbon fiber-reinforced polymer

Creator:: Sopal, Gautam Jayant
Abstract:: Long-term durability of surface-bonded carbon fiber-reinforced polymer (CFRP) 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 environmental exposure and combined...
Resource Type:: Masters Thesis
Full Text:: (Side View) Varies to 7.3 m maximum Hydraulic actuator Reaction frame Load cell Load

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:: 2000]: 29 m s 5.6 4.0 for 5 /wind windh V V= + ≤ [4.1] [4.2] ( )0.787.2

ScholarsArchive@OSU

Establishing a through-boring pattern and method of test for utility poles

Hybridized framing to modify load paths and enhance wood shearwall performance

Development of a method to elucidate biodegradation pathways of chlorinated one and two carbon compounds using a gas-permeable-membrane-supported methylotrophic biofilm

Effect of Hole Edge Distance on Strength of Through-Bored Utility Poles

The effects of nail bending-yield stress and biological deterioration on the cyclic performance of shearwalls

Aqueous-organic partition coefficients for Rn-222 and their application to Radon analysis by liquid scintillation methods

Design, analysis and evaluation of bridge superstructures for live loads

Field and Numerical Investigation of Pavement Vehicle Interaction Related Excess Fuel Consumption and Delamination

Environmental durability of reinforced concrete deck girders strengthened with surface-bonded carbon fiber-reinforced polymer

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

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