Accession Number:

AD0429490

Title:

PRESTRESSED LAMINATED WOOD BEAMS,

Descriptive Note:

Corporate Author:

FOREST PRODUCTS LAB MADISON WIS

Personal Author(s):

Report Date:

1964-01-01

Pagination or Media Count:

32.0

Abstract:

This paper presents a comparative evaluation of the flexural strength of 25 pairs of prestressed and matching unprestressed control beams, an evaluation of beams with clear straight-grained tension laminations, and a method of matching pairs of beams of structural size. Results show that an immediate 31 increase in strength and approximately 50 decrease in variability of strength can be obtained by prestressing, that a clear outer tension lamination probably has more influence upon flexural strength than is recognized by present design methods, and that structural size beams can be successfully matched. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE