Formwork for Concrete Structures by R.L.Peurifoy and G.D- By EasyEngineering.net

84 Chapter Four
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Split-
Ring
Dia.
(in.)
Bolt
Dia.
(in.)
Number of
Faces of
Member
with
Connectors
of on Same
Bolt
Net
Thickness
of Member
(in.)
Loaded Parallel
to Grain Design
Value, lb
Southern
Pine and
Douglas
Fir-Larch Hem-Fir
Loaded
Perpendicular to
Grain Design
Value, lb
Southern
Pine and
Douglas
Fir-Larch Hem-Fir
2 5 ⁄8 ¾ 1 1½″ 2,670 2,200 1,860 1,550
minimum
1½″ 2,080 1,730 1,450 1,210
minimum
2 2″ thick 2,730 2,270 1,910 1,580
2½″ or 2,860 2,380 1,990 1,650
thick
4 ¾ or 1 1½″ 3,750 3,130 2,620 2,170
7
⁄8
minimum
1¾″ or 4,360 3,640 3,040 2,530
thicker
2 1¾″ or 2,910 2,420 2,020 1,680
minimum
2″ thick 3,240 2,700 2,260 1,880
2½″ thick 3,690 3,080 2,550 2,140
3″ thick 4,140 3,450 2,880 2,400
3½″ or
thicker
4,320 3,600 3,000 2,510
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Notes:
1. Courtesy American Forest and Paper Association.
2. See NDS, ref. [1], for additional adjustments that may be appropriate for a particular
application.
Shear Plate Connector Unit Design Values, lb, for One Shear Plate
Unit and Bolt in Single Shear
TABLE 4-28
Split-Ring and Shear-Plate Connectors in End Grain
When split-ring and shear-plate connectors are installed in a surface
that is not parallel to the general direction of the grain of the member,
adjustments in the values tabulated in Tables 4-27 and 4-28 must be
made in accordance with NDS [1].
Penetration Requirements of Lag Screws
When lag screws are used, in lieu of bolts, for split-ring or shear-plate
connectors, the nominal design values tabulated in Tables 4-27 and 4-28
must be multiplied by the appropriate penetration depth factor [1].
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