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Ground Anchor Systems
Concrete Anchor Systems
Post Tensioning Systems
Threaded Bars with Fasteners
Tie Rods & Tie Backs
Micro Piles
Concrete Forming Hardware Systems
Williams products are made in the USA

Strand Anchor Accessories
Strand
Anchors		 Strand
Accessories		 Installation
Equipment		 Case
Histories

Wedge Plates (Anchor Heads)

 Anchor Head Wedges

Bearing Plates

 Spacers
PVC Centralizer Corrugated Duct
Heat Shrink Tubing & Canusa Steel End Cap

Anchor Heads (Wedge Plates)

 Wedge Plates

Williams Wedge Plates are full strength permanent components. They are available galvanized.
Type A
Diameter		 B
Thickness		 Part
Number
C 4.6 5"
(127 mm)		 2"
(51 mm)		 RSAH04W
C 7.6 5"
(127 mm)		 2"
(51 mm)		 RSAH07W
C 12.6 7-3/8"
(187 mm)		 3-3/8"
(86 mm)		 RSAH12S
C 19.6 8-1/4"
(210 mm)		 4"
(102 mm)		 RSAH19S
C 22.6 9"
(229 mm)		 4-1/8"
(105 mm)		 RSAH22
C 27.6 10"
(254 mm)		 4-1/2"
(114 mm)		 RSAH27
C 31.6 10-3/4"
(273 mm)		 4-7/8"
(122 mm)		 RSAH31
Wedge Plates

Anchor Head Wedges
All wedges are equipped with a ring to keep the wedge attached to the tendon during elongation and/or tensioning operations.
3 Piece Strand Wedge
3-Piece Wedges - RSWG03
The 3-Piece anchor wedges are PTI recommended for use on permanent anchors and/or anchors requiring inceremental loading. They uniformly engage the strand with less relaxation at low loads. They are manufactured from quality steels and are case hardened for durability.
2-Piece Wedges - RSWG02
The 2-Piece anchor wedges are useful in higher stress applications where the anchor is loaded and simply locked off, typical to temporary applications. They are manufactured from quality steels and are case hardened for durability.
 2 Piece Strand Wedge

Stressing Head Wedges - RSXSHW 3 Piece Stressing Wedge
Stressing head wedges are necessary for prestressing all classes of strand anchors. The stressing wedges are heat treated, chrome plated and designed for multiple uses.
Bearing Plates - S1K
Williams Bearing Plates are available in sizes as required per anchor, and are designed in accordance with PTI specifications. Plate stock can be provided in Grade 36 or Grade 50.
Anchor Head
Class 1 & 2		 Trumpet Class 1 Bearing Plate Center Hole
Head Clearance Class 1 & 2
O.D. I.D.
C 4.6 4-1/2"
(114 mm)		 4"
(102 mm)		 3-1/2”
(89 mm)
C 7.6 3-3/4”
(95 mm)
C 12.6 6-5/8"
(168 mm)		 6"
(152 mm)		 5-1/4”
(133 mm)
C 19.6 7-5/8"
(194 mm)		 7-1/8"
(181 mm)		 6-1/2”
(165 mm)
C 22.6 8-5/8"
(219 mm)		 7-7/8"
(200 mm)		 7-1/2”
(191 mm)
C 27.6 8”
(203 mm)
C 31.6 10-3/4"
(273 mm)		 10"
(254 mm)		 8-1/2”
(216 mm)
Strand Bearing Plate with Trumpet
Spacers - RSPS
Strand spacers are provided in the anchor bond zone to separate the strand and provide for the minimum required grout cover around each strand for corrosion protection and bond strength development. The strand spacers are normally located 1-2 feet above the bottom of the anchor and at the top of the bond zone. The intermediate strand spacers are typically placed at a distance of 8-10 feet, center to center along the bond zone between the top and bottom spacer.
Strand Spacers
PVC Centralizer - CEN
PVC Centralizer Centralizers are placed over the strand anchor assembly to maintain the minimum required 0.5” distance between the assembled anchor bundle and the drill hole wall. Depending on the anchor type and orientation, there are a wide variety of centralizers available for every application. State drill hole size for ordering.
Corrugated Duct - R75
Williams utilizes corrugated duct that complies with the required wall thickness (0.060” nominal) as specified by the Post-Tensioning Institute’s Recommendations for Prestressed Rock and Soil Anchors. Corrugated Duct
Heat Shrink Tubing and Canusa
Provides a corrosion protected seal when connecting smooth or corrugated segments. Heat Shrink Tubing and Canusa
Steel End Caps
Williams offers a bolt on steel end cap to provide corrosion protection for exposed anchor ends. Caps are provided with a closed cell neoprene seal. Most often the caps are packed with corrosion inhibiting wax or grease.
Type Width Height
C 4.6 8”
(203 mm)		 4-5/8”
(117 mm)
C 7.6
C 12.6 10"
(254 mm)		 5-3/8”
(133 mm)
C 19.6 12"
(194 mm)		 6"
(152 mm)
C 22.6
C 27.6 14"
(356 mm)		 7-7/8”
(200 mm)
C 31.6
Strand End Cap
Williams Form Engineering Corp.
Strand
Anchors		 Strand
Accessories		 Installation
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