Title:
Post-Tensioned Residential Foundations
Author(s):
Jack W. Graves, Jr.
Publication:
Concrete International
Volume:
13
Issue:
2
Appears on pages(s):
42-45
Keywords:
foundations; post-tensioning; prestressed concrete; residential buildings; slab-on-ground construction; structural design; Design
DOI:
Date:
2/1/1991
Abstract:
Outlines the correct procedures for the design, construction, and maintenance of soil-supported post-tensioned foundations for residential construction. Design follows the procedures developed by the Post-Tensioning Institute, which is primarily based on soil swelling mode, soil edge moisture variation distance, differential soil movement, climate (Thornthwaite Moisture Index), foundation length, beam spacing, loading, depth of beams, and width of beams. Other major factors considered include existing vegetation, slopes, drainage, time of the year constructed, and post-construction practices.