Masters Theses

Abstract

"The purpose of this study was to determine whether proportional damping could be used to satisfactorily simulate the more practical nonproportional damping condition in multistory shear buildings. To accomplish this one computer program was written to analyze proportionally damped systems and another to analyze nonproportionally damped systems, each giving as output the frequencies, mode shapes, displacements, shears and moments and the maximum shears and moments. Shear buildings of two, three and four stories were studied in which the damping coefficients were varied from one to ten percent of critical damping. Although the programs could handle various other types, only linearly decreasing forcing functions were used. For the proportional system, the damping matrix was taken proportional to the stiffness matrix such that a good approximation to the nonproportional damping matrix was obtained. The resulting shears at one particular time and the maximum shears were then compared. For the structures investigated it was found that the proportionally damped systems, in comparison to the nonproportionally damped systems, yielded conservative values for the shears examined whereas the maximum shears were almost identical to those in the nonproportional system"--Abstract, page ii.

Advisor(s)

Best, John, 1925-2015

Committee Member(s)

Gillett, Billy E.
Cheng, Franklin Y.

Department(s)

Civil, Architectural and Environmental Engineering

Degree Name

M.S. in Civil Engineering

Publisher

University of Missouri at Rolla

Publication Date

1968

Pagination

viii, 112 pages

Note about bibliography

Includes bibliographical references (pages 59-61).

Rights

© 1968 Edwin Bailey, All rights reserved.

Document Type

Thesis - Open Access

File Type

text

Language

English

Subject Headings

BuildingsDamping (Mechanics)Structural analysis (Engineering)

Thesis Number

T 2072

Print OCLC #

5994682

Electronic OCLC #

800427208

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