INELASTIC DESIGN OF LOAD CARRYING MEMBERS. PART V. THEORETICAL AND EXPERIMENTAL CREEP ANALYSES OF BEAM-COLUMNS
Abstract
A theory is presented for constructing loadcreep 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. 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 (Proc. Am. Soc. Civil Engrs., 68:691-718, 1942). 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 c nsidered. The beam-columns were subjected to a constant axial load located either at the centroid of the section or at an eccentricity of 15% 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. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 1961
- Accession Number
- AD0265177
Entities
People
- D.l. Dewhirst
- O.m. Sidebottom
Organizations
- University of Illinois Urbana–Champaign