University of Illinois Urbana-Champaign

A Simple Approximation for the Fundamental Frequencies of Two-Span and Three-Span Continuous Beams

Veletsos, A.S.; Newmark, N.M.

Content Files
SRS-066.pdf

Permalink

https://hdl.handle.net/2142/13956

Description

Title
A Simple Approximation for the Fundamental Frequencies of Two-Span and Three-Span Continuous Beams
Author(s)
  • Veletsos, A.S.
  • Newmark, N.M.
Issue Date
1954-02
Keyword(s)
  • Flexure
  • Continuous beams
Date of Ingest
2009-10-09T20:10:21Z
Abstract
A rapid approximate method is presented for calculating the fundamental frequencies of flexural vibration of two-span beams and of particular arrangements of three-span beams which are continuous over non-deflecting supports and are elastically restrained against rotation at their end supports. The end restraints may be provided by actual coil springs or they may represent the effect of adjoining members, but in all cases the stiffnesses of these restraints are assumed to be positive. The mass per unit of length and the flexural rigidity of the beams may vary from one span to the next, but in any one span these quantities are considered constant. Two numerical examples are included to illustrate the application of the method.
Publisher
University of Illinois Engineering Experiment Station. College of Engineering. University of Illinois at Urbana-Champaign.
Series/Report Name or Number
Civil Engineering Studies SRS-066
Type of Resource
text
Genre of Resource
Technical Report
Language
en
Permalink
http://hdl.handle.net/2142/13956
Sponsor(s)/Grant Number(s)
  • Office of Naval Research. Department of the Navy.
  • Contract N60ri-071(06), Task Order VI, Project NR-064-183

Owning Collections

Civil Engineering Studies: Structural Research Series PRIMARY