Product Brochure

20
Strong-Drive
®
SDWH TIMBER-HEX HDG Screw
© 2019 Simpson Strong-Tie Company Inc. F-F-SDWHHDG19
Round Piling
Uplift
Lateral
Stringer A
Stringer B
PD
PD
Table 7: Round Pile — Loads for End/Corner Connection
Pile
Size
(in.)
Stringer A Stinger B
Notched
Pile ?
Detail No.
Minimum
Notched Pile
Depth (in.)
PD
Allowable Connection Loads
Per Stringers (lb.)
Plies — Qty.
and Size
(in.)
Fasteners —
Qty. and Model
Plies — Qty.
and Size
(in.)
Fasteners —
Qty. and Model
Uplift Lateral
8 (1) 2 x 10 (4) SDWH27600G (1) 2 x 10 (4) SDWH27600G N RC1 — 1,140 1,615
8 (2) 2 x 10 (4) SDWH27800G (2) 2 x 10 (4) SDWH27800G N RC1 — 1,655 1,585
8 (1) 2 x 10 (4) SDWH27400G (1) 2 x 10 (4) SDWH27400G Y RC2 6 ½ 1,035 1,455
8 (2) 2 x 10 (3) SDWH27600G (2) 2 x 10 (3) SDWH27600G Y RC3 5 1,310 1,110
10 (1) 2 x 10 (4) SDWH27600G (1) 2 x 10 (4) SDWH27600G N RC1 — 1,140 1,615
10 (2) 2 x 10 (4) SDWH27800G (2) 2 x 10 (4) SDWH27800G N RC1 — 1,655 1,585
10 (1) 2 x 10 (4) SDWH27400G (1) 2 x 10 (4) SDWH27400G Y RC2 8 ½ 1,035 1,455
10 (2) 2 x 10 (3) SDWH27600G (2) 2 x 10 (3) SDWH27600G Y RC3 7 1,310 1,110
12 (1) 2 x 10 (4) SDWH27600G (1) 2 x 10 (4) SDWH27600G N RC1 — 1,140 1,615
12 (2) 2 x 10 (4) SDWH27800G (2) 2 x 10 (4) SDWH27800G N RC1 — 1,655 1,585
12 (1) 2 x 10 (4) SDWH27400G (1) 2 x 10 (4) SDWH27400G Y RC2 10 ½ 1,035 1,455
12 (2) 2 x 10 (3) SDWH27600G (2) 2 x 10 (3) SDWH27600G Y RC3 9 1,310 1,110
End/Corner Condition
1. Design of framing (stringers) and columns is by others.
2. Wooden piles and framing are Southern Pine (SP) or engineered wood
products with minimum specific gravity or equivalent specific gravity
of 0.55.
3. Use the screw lengths cited in the tables and details.
4. Dimensions and allowable connection loads are based on notched piles
that must accommodate the stringers with adequate bearing and no gaps.
5. Notched piles shall not be notched such that more than 50% of the cross
section is removed.
6. Unnotched piles may be assigned notched pile loads if the unnotched pile
dimensions meet or exceed the maximum dimensions for the notched pile
and fastener placement is the same.
7. Tabulated values shall be multiplied by all applicable service adjustment
factors per the NDS. Allowable loads are shown with a load duration factor
of C
D
= 1.0. Loads may be increased for load duration per the building
code up to C
D
=1.6. For service moisture content greater than 19%, use
C
M
= 0.70.
8. When the connection on an unnotched pile is simultaneously loaded in
more than one direction, the allowable load must be evaluated using the
unity equation: (Design uplift/Allowable uplift) + (Design lateral/Allowable
lateral) + (Design vertical/Allowable vertical) ≤ 1.0. If notched piles are used,
the vertical term is zero.
9. For stringer thickness at least 1.5" and less than 3", use the table values for
the conditions with a single 2x stringer.