University of Illinois Urbana-Champaign

Inelastic design of load carrying members part 5; theoretical and experimental creep analyses of beam columns

Dewhirst, D.L.; Sidebottom, O.M.

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https://hdl.handle.net/2142/111914

Description

Title
Inelastic design of load carrying members part 5; theoretical and experimental creep analyses of beam columns
Author(s)
  • Dewhirst, D.L.
  • Sidebottom, O.M.
Issue Date
1961-09
Keyword(s)
  • Inelastic Design
  • Load Carrying
Abstract
A theory is presented for constructing load-creep deflection curves for beam-columns at any specified time. The stress-strain-time relation for the material is assumed to be represented by an isochronous stress-strain diagram approximated by an arc hyperbolic sine curve (see Equation 16). A program has been written for the IBM 650 digital computer to calculate points on moment-curvature curves for a general I-section. The theory uses these curves and the successive approximations procedure by Newmark (32). The experimental part of the investigation included tests of rectangular- and T-section beam-columns made of 17-7Ph stainless steel and tested at 972°F. Several slenderness ratios were considered. The beam-columns were subjected to a constant axial load located either at the centroid of the section or at an eccentricity of 15 per cent of its depth and to a constant transverse load at midspan of sufficient magnitude to produce a linear elastic bending stress when acting alone of 0.50 σ_0.
Publisher
Department of Theoretical and Applied Mechanics. College of Engineering. University of Illinois at Urbana-Champaign
Series/Report Name or Number
  • TAM R 201
  • 1967-0497
ISSN
0073-5264
Type of Resource
text
Language
eng
Permalink
http://hdl.handle.net/2142/111914
Sponsor(s)/Grant Number(s)
Wright Air Development Division, Contract No. AF 33 (616)-7600, Project No. 7351
Copyright and License Information
Copyright 1961 Board of Trustees of the University of Illinois

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TAM technical reports include manuscripts intended for publication, theses judged to have general interest, notes prepared for short courses, symposia compiled from outstanding undergraduate projects, and reports prepared for research-sponsoring agencies.