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Biaxial bending of concrete members with applications to prestressed concrete power poles

Creator:: Stephens, Charles Talmon
Abstract:: A method of analysis of arbitrarily shaped prestressed concrete members for biaxial bending is given. The stress-strain curve of the concrete is represented by two parabolic segments, and the effects of strain hardening of the steel are included in the analysis. An iterative numerical procedure is used to solve for...
Resource Type:: Dissertation
Full Text:: in Figure 2.4 and is represented by the following equations. 0 < S s < S Fs = E 1 Sspi Sp/ < Ss

An evaluation of coastal Oregon's marginal aggregates

Creator:: Clemmons, Gregory H.
Abstract:: Coastal Oregon is deficient in quality construction aggregates. There is, however, an abundance of lower quality, or marginal, aggregate available for construction purposes. An evaluation of these marginal aggregates is the purpose of this paper. There are four classes of marginal rocks found on the Oregon Coast. Basalts, high in...
Resource Type:: Masters Thesis

The control and fate of enteric bacteria in the environment with particular emphasis on the factors influencing fecal indicator survival in waste storage facilities

Creator:: Crane, Stuart R.
Abstract:: The indiscriminate release of fecal bacteria to the environment can present a public health hazard when pathogenic species gain access to drinking and recreational water sources. The extent of bacterial contamination of surface and ground waters associated with animal production units and waste application areas seems largely dependent on the...
Resource Type:: Dissertation
Full Text:: ) and Pavlova et.al. (1972). This research has shown that the distribution of FC types and FS species

The effect of a variable draft tube flow area on the performance of a reaction turbine

Creator:: Ray, Arliss Dean
Resource Type:: Masters Thesis

Nonlinear diffraction theory by an eigenfunction expansion of the Green's function

Creator:: Chen, Min-Chu
Abstract:: A second-order nonlinear diffraction theory is developed for a large diameter circular cylinder under the action of surface gravity waves of finite amplitude in water of-finite depth. Boundary value problems are derived by using a perturbation expansion and the solutions for the diffracted waves are given in terms of Fredholm...
Resource Type:: Dissertation

A review of research on shear and diagonal tension in reinforced concrete beam

Creator:: Yang, Jui-Tsung
Abstract:: Resistance of reinforced concrete beams to diagonal tension was studied in a series of papers which included beams without web reinforcement and beams with various types of web reinforcement. The magnitude of the loading causing the formation of initial diagonal tension cracks depended primarily on the dimensions of the cross...
Resource Type:: Masters Thesis

Wave forces on a horizontal circular cylinder near a plane boundary

Creator:: Wright, James Christopher
Resource Type:: Masters Thesis
Full Text:: range 10 3 < Re < 10 5 and U = 1.07 m/sec then fs = 0.7 Hz for this test cylinder. Thus, for the case

A large scale model study of placed stone breakwaters

Creator:: DeBok, Donald H.
Abstract:: The results of three hydraulic model tests to evaluate the stability of a placed stone breakwater are presented and discussed. The prototype breakwater was designed to protect offshore power and port facilities in 60 feet of water and was tested at scale ratios of 1:10, 1:20, and 1:100. The armor...
Resource Type:: Masters Thesis
Full Text:: force Fr Froude number Fs Resistance force g Acceleration of gravity H Wave height Hb Breaking wave

Dynamic response of an offshore structure to measured and simulated stochastic wave forces

Creator:: Grecco, Michael G.
Abstract:: The dynamic response of an offshore structure to measured and simulated stochastic wave forces is investigated. The theoretical nondeterministic analysis is performed in the frequency domain for a two-dimensional model. The ocean wave system is assumed to be a zero mean, stationary, ergodic Gaussian process described by a one-dimensional wave...
Resource Type:: Masters Thesis
Full Text:: Horizontal Load Fs in the Isotropic Half-space Soil Continuum Platform Layout Wave Project II, Blank [1969

An evaluation of the cubic autotape under dynamic conditions

Creator:: Plasker, James Robert
Abstract:: Accuracy requirements for positioning a vessel in the near shore area have increased in recent years. To meet these requirements several electronic positioning systems have been developed. One such system is the Cubic Autotape Model DM-40. The Autotape is a circular positioning system which utilizes the phase comparison between transmitted...
Resource Type:: Masters Thesis
Full Text:: .106 6 .158 1.551 6 _725.398 23.0 .402 .106 7 -0.239 -1.031 7 21765.995 2.6 .109 .317 8 21245.832 2.6

ScholarsArchive@OSU

Biaxial bending of concrete members with applications to prestressed concrete power poles

An evaluation of coastal Oregon's marginal aggregates

The control and fate of enteric bacteria in the environment with particular emphasis on the factors influencing fecal indicator survival in waste storage facilities

The effect of a variable draft tube flow area on the performance of a reaction turbine

Nonlinear diffraction theory by an eigenfunction expansion of the Green's function

A review of research on shear and diagonal tension in reinforced concrete beam

Wave forces on a horizontal circular cylinder near a plane boundary

A large scale model study of placed stone breakwaters

Dynamic response of an offshore structure to measured and simulated stochastic wave forces

An evaluation of the cubic autotape under dynamic conditions

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