Ontario Building Code Question

[John Allingham]

This is from the 2006 OBC:

9.15.5.2. Support of Beams
(1)

Not less than a 190 mm depth of solid masonry shall be provided beneath beams supported on masonry.

(2)

Where the beam referred to in Sentence (1) is supported below the top of the foundation walls, the ends of such beams

shall be protected from the weather.


Am I reading this wrong - 190 mm (7.5 inches) seems excessive. In the 1997 code it was 3.5 inches of bearing.

7.5 inches would almost take you through some foundation walls.

[Brian Jones]

Originally Posted by jallingham

This is from the 2006 OBC:

9.15.5.2. Support of Beams
(1) Not less than a 190 mm depth of solid masonry shall be provided beneath beams supported on masonry.

(2)

Where the beam referred to in Sentence (1) is supported below the top of the foundation walls, the ends of such beams
shall be protected from the weather.


Am I reading this wrong - 190 mm (7.5 inches) seems excessive. In the 1997 code it was 3.5 inches of bearing.

7.5 inches would almost take you through some foundation walls.

(1) they want a full block under the beam in a block wall.....solid concrete under the beam in a poured wall.
(2) the ends are to be covered where (if) they jut past the outside of the foundation walls.

[John Allingham]

Originally Posted by bjones5

(1) they want a full block under the beam in a block wall.....solid concrete under the beam in a poured wall.
(2) the ends are to be covered where (if) they jut past the outside of the foundation walls.
[/left]

So where is the 3.5 inches of bearing now covered?

[Claude Lawrenson]

9.23.8.1. Bearing for Beams

(1)

Beams shall have even and level bearing and shall have not less than 89 mm length of bearing at end supports, except as required in notes to Tables A-8 to A-11.

[John Allingham]

Thanks gents. That explains everything.