Foundation Types: Difference between revisions

From Open Source Ecology
Jump to navigation Jump to search
Line 6: Line 6:
*Grade beams connect column foundations together - [https://research.engineering.ucdavis.edu/gpa/foundations-shallow/grade-beams/]
*Grade beams connect column foundations together - [https://research.engineering.ucdavis.edu/gpa/foundations-shallow/grade-beams/]
*Slab foundations are used on flat lots [https://www.google.com/search?q=slab+foundation+vs+grade+beam&oq=slab+foundation+vs+grade+beam&aqs=chrome..69i57j33i160l2j33i22i29i30.6263j0j9&client=ubuntu&sourceid=chrome&ie=UTF-8]. Supported directly be ground.
*Slab foundations are used on flat lots [https://www.google.com/search?q=slab+foundation+vs+grade+beam&oq=slab+foundation+vs+grade+beam&aqs=chrome..69i57j33i160l2j33i22i29i30.6263j0j9&client=ubuntu&sourceid=chrome&ie=UTF-8]. Supported directly be ground.
*Shallow and deep are 2 general classes. Deep ones go down to bedrock. [https://www.bigrentz.com/blog/types-of-foundations#:~:text=There%20are%20two%20types%20of,columns%20deep%20into%20the%20ground.]


=Design=
=Design=
*Grade beam is min 8" wide, and depth is the length of span it supports [https://www.civillead.com/grade-beam-foundation/]
*Grade beam is min 8" wide, and depth is the length of span it supports [https://www.civillead.com/grade-beam-foundation/]
*Compared to typical foundation, uses less concrete.
*Compared to typical foundation, uses less concrete.

Revision as of 00:32, 4 October 2022

Terms

  • Slab is easier and cheaper to build than a pier and beam foundation. [1]
  • Grade Beam - [2]
  • Grade beam is the thickened outer edge of the slab foundation. [3]
  • Spread footing - 'inverted T' actually holds the pressure on the soil. Grade beam functions like a beam - spanning 2 deep piles, not relying on soil underneath for support. [4]
  • Grade beams connect column foundations together - [5]
  • Slab foundations are used on flat lots [6]. Supported directly be ground.
  • Shallow and deep are 2 general classes. Deep ones go down to bedrock. [7]

Design

  • Grade beam is min 8" wide, and depth is the length of span it supports [8]
  • Compared to typical foundation, uses less concrete.