Does anyone know how much of a beam must be resting on a support post? I will have 3 beams, each one being 2-2x10s and intersecting at one 8 x 8 post. Two of the beams will rest at a 90 degree angle and the third will rest at 45 degree angle at the point of the other two beams. I will post a pic of a mock up i made.
As far as bearing requirements here is what the 2009 IRC requires:
R502.6 Bearing. The ends of each joist, beam or girder shall have not less than 1.5 inches (38 mm) of bearing on wood or metal and not less than 3 inches (76 mm) on masonry or concrete except where supported on a 1-inch-by-4-inch (25.4 mm by 102 mm) ribbon strip and nailed to the adjacent stud or by the use of approved joist hangers.
typically I bear my beams fully on columns.
"You get what you pay for, and sometimes free costs more!"