Title: Lateral Stability of Long Prestressed Concrete Beams-Part 2
Date: January-February, 1993
Volume: 38
Issue: 1
Page number: 70-88
Author(s): Robert F. Mast
https://doi.org/10.15554/pcij.01011993.70.88

Click here to access the full journal article

Abstract

A theory for evaluating the lateral stability of long prestressed concrete /-beams supported from below is developed. The same principles are also applied to hanging beams, extending the work presented  earlier in Part 1 of this paper. The theory includes consideration of the post-cracking behavior of prestressed concrete beams under lateral loads. Data from the testing of a full-sized prestressed concrete  beam are presented to verify the theory. A method of computing factors of safety related to lateral stability is presented. A numerical example is included, giving computations for the factors of safety for  both hanging and bottom-supported beams. A computer program in BASIC is furnished to facilitate these computations.

References

1. Mast, R. F., "Lateral Stability of Long Prestressed Concrete Beams- Part 1," PCI JOURNAL, V. 34, No. I, JanuaryFebruary 1989, pp. 34-53.

2. Imper, Richard R., and Laszlo, George, "Handling and Shipping of Long Span Bridge Beams," PCI JOURNAL, V. 32, No. 6, November-December 1987, pp. 86-101.

3. Roeder, C. W., Stanton, J. F., and Taylor, A. W., "Performance of Elastomeric Bearings," NCHRP Report 298, Washington, D.C., October 1987, 100 pp.