ICC Subscriptions
 
R611.8 ICF wall-to-floor connections.

TABLE R611.8(1) FLOOR LEDGER-ICF WALL CONNECTION (SIDE-BEARING CONNECTION) REQUIREMENTSa,b,c


MAXIMUM FLOOR CLEAR SPANd
(feet)
MAXIMUM ANCHOR BOLT SPACINGe (inches)
Staggered
1
/2-inch-diameter
anchor bolts
Staggered
5
/8-inch-diameter
anchor bolts
Two
1
/2-inch-diameter
anchor boltsf
Two
5
/8-inch-diameter
anchor boltsf
8
18
20
36
40
10
16
18
32
36
12
14
18
28
36
14
12
16
24
32
16
10
14
20
28
18
9
13
18
26
20
8
11
16
22
22
7
10
14
20
24
7
9
14
18
26
6
9
12
18
28
6
8
12
16
30
5
8
10
16
32
5
7
10
14


For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm.

a. Minimum ledger board nominal depth shall be 8 inches. The thickness of the ledger board shall be a minimum of 2 inches. Thickness of ledger board is in nominal lumber dimensions. Ledger board shall be minimum No. 2 Grade.


b. Minimum edge distance shall be 2 inches for 1/2-inch-diameter anchor bolts and 2.5 inches for 5/8-inch-diameter anchor bolts.


c. Interpolation is permitted between floor spans.


d. Floor span corresponds to the clear span of the floor structure (i.e., joists or trusses) spanning between load-bearing walls or beams.


e. Anchor bolts shall extend through the ledger to the center of the flat ICF wall thickness or the center of the horizontal or vertical core thickness of the waffle-grid or screen-grid ICF wall system.


f. Minimum vertical distance between bolts shall be 1.5 inches for 1/2-inch-diameter anchor bolts and 2 inches for 5/8-inch-diameter anchor bolts.


Table R611.8(2) Design Values (PLF) for Floor Joist-to-Wall Anchors Required for Townhouses in Seismic Design Category C and All Buildings in Seismic Design Category D.
Reserved.





FIGURE R611.8(1) SECTION CUT THROUGH FLAT WALL OR VERTICAL CORE OF WAFFLE- OR SCREEN-GRID WALL






For SI: 1 inch = 25.4 mm.

NOTE:
Section cut through flat wall or vertical core of a waffle- or screen-grid wall.


FIGURE R611.8(2) FLOOR LEDGER-ICF WALL CONNECTION (SIDE-BEARING CONNECTION)






For SI: 1 inch = 25.4 mm.

NOTE:
Section cut through flat wall or vertical core of a waffle- or screen-grid wall.


FIGURE R611.8(3) FLOOR LEDGER-ICF WALL CONNECTION (LEDGE-BEARING CONNECTION)






For SI: 1 inch = 25.4 mm.

NOTE:
Section cut through flat wall.


FIGURE R611.8(4) WOOD FLOOR LEDGER-ICF WALL SYSTEM CONNECTION (THROUGH-BOLT SIDE-BEARING CONNECTION)






For SI: 1 inch = 25.4 mm.


FIGURE R611.8(5) FLOOR LEDGER-ICF WALL CONNECTION (THROUGH-BOLT-LEDGE-BEARING CONNECTION)






FIGURE R611.8(6) ANCHORAGE REQUIREMENTS FOR TOP BEARING WALLS FOR TOWNHOUSES AND ALL BUILDINGS FOR FLOOR FRAMING PARALLEL TO WALL






FIGURE R611.8(7) ANCHORAGE REQUIREMENTS FOR LEDGER BEARING WALLS FOR TOWNHOUSES AND ALL BUILDINGS FOR FLOOR FRAMING PARALLEL TO WALL