BLD2022-0871+Structural_Analysis_or_Calculations+10.26.2023_10.29.31_AM+3862873rTAKEV
IEW
October 14, 2023 R U C T URA L
Lula Samuel NGINEERING
15827 70th Ave W
Edmonds, WA 98026
Sent via: Email
Subject: Samuel Residence
Permit 2022-0871 Framing Inspection
Dear Lula,
This letter is in response to engineering questions raised by the inspector during the framing inspection.
I have copied the inspector's questions below followed by my response.
1. Provide bearing load path to suitable bearing
a. All beams can be supported by solid stud packs.
2. Provide positive connections at all top plate breaks to beam
a. Strap across top plate breaks with Simpson CS 16 straps. Extend 15" beyond the break on
each side.
3. Provide a head out or blocking framing for cut out roof truss in master closet
a. Agreed. Contractor to add blocking.
4. Provide revision to the City for roof line deviation from the plans
a. The roof line change does not affect the structural design.
5. Have FOR address beam corner to post connection at SW corner of upstairs
a. The mitered cut at the beam corner is adequate for bearing. Reinforce the corner with
Simpson TA9Z or L90.
6. Provide positive connection for upstairs SW corner beam -wall connection
a. Beam -wall connections can be accomplished with beam pockets framed into the walls,
and nailed king studs on each side of the beam. At corner installation, use Simpson A44
angles to connect beams to corner posts.
7. Strap across over bores at North wall, I st level
a. Straps can be Simpson CS 16 with 30" of strap extending each side of the holes.
8. Provide posts and footings as per plans for lower floor for bearing of new glulam.
a. Per our site visit on October 4th the main floor beam supports are confirmed to be sitting
over existing concrete foundation walls below. Provide squash blocking between
columns and walls below.
9. Verify load path for load behind fireplace:
a. Fireplace walls are supported on existing fireplace foundation. There are no concentrated
loads acting on the fireplace walls.
10. Provide footings and beams per plans.
a. The basement plans show the walls incorrectly. The columns above land on the existing
concrete foundation wall. The foundation wall spreads the column loads out over a much
larger area to the soil below. Therefore, no additional footing is needed in the basement.
10/15/23 5:46 PM
Ms. Lula Samuel
October 14, 2023
Page 2
b. Note that the eastmost 5.5"xl9.5" glulam beam (closest to the kitchen) is now spanning
23 feet due to the removal of the stairway walls. The beam is adequate to span this
distance, however the beam may experience deflections up to 1.2-inches under code level
service loads. This deflection still meets the code minimum requirements of L/240, but is
higher than I would normally recommend for a custom home. If you would like to
decrease the potential beam deflections, add the 6x6 post per plan, over the foundation
wall below.
Please feel free to contact me if you would like to discuss any of these items in more detail or if you
have any questions. You can reach me by phone at (206) 914-9536, or by email at
LakeviewSE@outlook.com.
Sincerely,
Jon Conner, PE, SE
Lakeview Structural Engineering
10/15/23 5:46 PM