HomeMy WebLinkAbout4339 FOX GROVE DR - SPECIAL INSPECTIONS - 2/16/2021COBB ASSOCIATES,· 1NC.
STRUCTURAL ENGINEERS
THE RANCH OFFICE COMMONS
2000 W. 120TH AVENUE, SUITE 9
DENVER, COLORADO 80234
(303) 460-0053 FAX (303) 460-7542
February 16, 2021
D.R. Horton, Inc ..
9555 South Kingston Court, Suite 200
Englewood, CO 80112
Attention: Bill Milliken
Subject: Partial ~oundation Evaluation -Plan D435 Elevation D
4339 Fox Grove Drive
Lot 44, Fox Grove Subdivision
Fort Collins, Colorado
Cobb Associates, Inc. Job No. 102100340
As you informed our office by email, the beam pockets in the foundation at the exterior ends of the Wl2x22 and
Wl2x35 beams were chipped out at the rear of the pocket for the steel beams. The top row of reinforcing was
exposed and the top of the pocket has broken. At the W 12x22 beam, the top of the buttress is just below the
bottom of the beam.
I recommend adding a steel angle below the end of the Wl2x35 steel beam to provide additional lateral support at
the foundation wall. The angle should be welded to the bottom of the steel beam and bolted to the inside face of
the foundation wall. At the end of the W12x22, I recommend bolting to the foundation steel angles at each side of
the web of the beam. After completing the lateral support modification, I recommend removing any loose
concrete iind filling the beam pocket with non-shrink grout. Refer to the enclosed drawings for • details.
Please call if there are any questions.
Sincerely,
COBB ASSOCIATES, INC. Reviewed by:
~
Matt Rawlins Bryan Cobb
COBB ASSOCIATES
STRUCTURAL ENGINEERS
BY MR DATE 2-16-21 SUBJECT ..... P~,...,R • ._.H....,O...,_R..._TO..,N.,__ _______ _ SHEET NO. __.2..___ OF~
CHECKED__ac_ DATE 2-16-21 :i,43..,,3..,,,,_9_.F ..... O...,X_,G"""R.,.0=VE........,DJ..lJRIUJYE...__ _______ JOB NO. 102100340
..,L0,._.T_4=4 ...... ..,_f ..... QX......,.G...,.R..._0VE..,__________ PLAN NO. D435 D
l/J3? C:.. , ~ ~ p/)·1,14.
8.lo1 oo-,i
GROUT POCKET
W12X22 STEEL BEAM
INSIDE FACE OF WALL\
BUTTRESS
BEAM BRACE DETAIL
EXTERIOR END OF W12X22 BEAM AT FIRST FLOOR.
1/2•~ EXPANSION
BOLT. EMBED BOLTS
MIN. 4• INTO
CONCRETE , EACH
ANGLE.
L 8 X 4 X 1/2 STEEL
ANGLE, EACH SIDE OF
WEB .
2 11 = 11-011