Curve TRINITI HIGHWAY CASS S4, Руководство по сборке изделия

Страница: 7 / 42

TrinityHighway.com 6 Created November 2021
General CASS
®
S4(29) Information
CASS
®
S4(29) is a 3 Cable Barrier consisting of a 4” wide galvanized steel S4 x 7.7# [S100 x 11.5] and
three (3) pre-stretched 3/4” [19 mm] wire rope cables. The posts can be driven, placed in a driven sleeve,
placed in a sleeve and concrete footing, placed in a sleeve in a mow strip, or base plated. One inch [25
mm] or 3/4” [19 mm] fitting hardware can be used. CASS
®
S4(29) can be used as a TL-3 system on 1V:6H
or flatter slopes.
The post spacing range is 6’-6” [2 m] minimum and 32’-6” [9.9 m] maximum. The 12” x 30” diameter [300
mm x 762 mm] minimum depth concrete footing is used for the system with slopes 1V:6H or flatter. See
the Ground Preparation Section for additional placement criteria. The footing depths/diameters can be
increased if the soil characteristics do not meet NCHRP Report 350 standard soil. Contact Trinity Highway
for these designs.
CASS
®
S4(29) can be placed on the roadside in front of slopes 1V:2H or flatter. Use a minimum distance
of 2’ [0.6 m] in front of the hinge point to the center of the post.
All cable height dimensions are approximate from top of grade to center of the cable. Cables are placed
in a slot at the top of the posts at approximate heights which are 20.9” [530 mm], 25.2” [640 mm], and 29.5”
[750 mm]. Plastic spacers keep the cables positioned at approximately 4” [100 mm] on center from each
other. A stainless steel strap is placed around the post below the top cable.
The post spacing will be in accordance to the contract plans. The barrier is terminated either with a CCT,
or a CCA.
Only use the CCA when not on the NHS or when it cannot be impacted in either direction.
The Minimum Strength Concrete (“MSC”) for all concrete components of CASS
®
S4(29) is 3,000
psi [21 MPa] or greater to meet the state/specifying agency’s specifications.
Inspect Shipment
Before assembling the CASS
®
S4(29), carefully unpack and inspect all components for signs of damage.
Check the received parts against the packing list supplied with the system to verify that all parts were
received. If parts are damaged or missing from the shipment or unspecified parts were part of the
shipment, do not attempt to assemble the system; contact Trinity Highway immediately.
Warning: Use only Trinity Highway parts that are specified by Trinity Highway
for use with the
CASS
®
S4(29)
for assembling, maintaining, or repairing the
CASS
®
S4(29)
. Do not utilize or otherwise commingle parts from other systems even if
those systems are other Trinity Highway Systems.
CASS
®
S4(29) Components
Below is a pictorial of components for the CASS
®
S4(29) hardware. Please see Trinity Highway drawing
for specific lists of quantities. All Trinity Part Numbers (“PN”) are provided for standard parts only.
Note: The following components are not shown to scale