PRESTRESSED LAMINATED WOOD BEAMS,
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)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1964
- Accession Number
- AD0429490
Entities
People
- Billy Bohannon
Organizations
- Forest Products Laboratory