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Document Type

Thesis

Date of this Version

7-1961

Citation

Thesis (M.S.)—University of Nebraska—Lincoln, 1961. Department of Engineering Mechanics.

Comments

Copyright 1961, the author. Used by permission.

Abstract

In the past century concrete has been very widely accepted as a construction material. Due to the comparative recentness of the acceptance of concrete and also to its non-homogeneity, much less is known about the properties of concrete than about the properties of the “elastic materials”, such as metals. At the present time prestressed concrete is rapidly becoming an extremely important construction material. It has been generally assumed that the properties of the concrete, in prestressed construction, are the same as the properties of concrete which is not prestressed.

The objectives of this thesis are: 1. To determine, by measuring natural frequencies of vibration, whether a concrete plate, prestressed in one direction only, is anisotropic. 2. To evaluate the various elastic constants for one particular plate. 3. To possibly provide a basis for further research into the anisotropic properties of prestressed concrete, if it is determined that prestressed concrete is anisotropic.

Advisors: Gerald M. Smith and Lyle E. Young

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