36 -309 engineer letter• RYAN S. HELLWIG, PE • STRUCTURAL ENGINEER •
December 13, 2012
Mark O. Gelotte, Architect
70 Elm Street
Hatfield MA 0103 8
ms elg otte@verizon.net
Re: Bayuk Residence
125 Cardinal Way
Florence, MA
Subject: Beam Reinforcement for Removal of Existing Columns
Design Criteria
1St Floor Live Load = 40 psf Residential
2"a Floor Live Load = 30 psf Sleeping Areas
Beam #1
Beam #2
Existing Beam = (3) 2 x 12
Span = 12'- 6"
Supporting 1St Floor Live Loads only
Span = 10'- 0"
Supporting 1St & 2' Floor Live Loads
Beam Reinforcement
2L 8 x 2%2 x %2 LLV A36 steel (to be cut from L 8 x 4 x %2 or larger stock)
Attach vertical legs to existing beam w/ 3/8" dia. x 4" lag screws @ 24" o/c
Supports
31/2" diameter concrete filled 16 gauge steel pipe column
1/2" x 51/2" x 8" column cap
12" x 30" x 30" column footing
3" minimum bearing on existing concrete foundation wall
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