Punching Shear Resistor_Image1
Punching Shear Resistor_Image2

PSR studs are large-headed shear connectors that are welded to flat steel bars (creating stud rails) and used for shear reinforcement in flat concrete slabs to replace stirrups and column capitals to resist the punching shear stress in the slabs.

Using these PSR stud rails, increases the punching shear capacity at the base of the concrete columns, resulting in a significant reduction in slab thickness. This creates a substantial savings in labor and material costs. PSR Studs have heat codes stamped on the head that allow traceability to the specific Mill Certification of the stud. PSR studs are available in any length over the standard minimum.

Punching Shear Resistor_Image1
Punching Shear Resistor_Image2


A B C D E F G H I J K
1
Stud Specifications Ferrule Specifications
2
Diameter Length
Min.
CSW
Part Number
(mild steel)
Head
Diameter
Head
Thickness
Ferrule Major
O.D.
Minor
O.D.
Height
3
D L P/N H A P/N D B M
4
3/8 3 – 7/16 PSRM0370343 1.19 0.26 F037-F 0.64 0.505 0.39
5
1/2 2 – 5/8 PSRM0500262 1.58 0.33 F050-F 0.795 0.65 0.438
6
5/8 3 – 3/4 PSRM0620375 1.98 0.4 F062-F 1.03 0.785 0.516
7
3/4 4 – 3/8 PSRM0750437 2.37 0.47 F075-F 1.215 1.03 0.656
8
9
Mechanical Property Requirements
10
Criteria Type B
11
Tensile Strength 65,000 PSI min.
12
Yield Strength 51,000 PSI min.
13
Elongation (% in 2 in.) 20% min.
14
Elongation (% in 5 x D) 15% min.
15
Reduction of Area 50% min.

Punching Shear Resistor – Accessory Detail

A B C D E F G H I J
1
Side Load Chucks
2
Chuck Only Short Bracket Long Bracket
3
Stud Size Part # Part # Part #
4
3/8 CSLB-037 CSL-037S CSL-037L
5
1/2 CSLB-050 CSL-050S CSL-050L
6
5/8 CSLB-0562 CSL-062S CSL-062L
7
3/4 CSLB-075 CSL-075S CSL-075L
8
9
10
Side Load Chuck Components
11
Component Part #
12
Hold Down Finger 3/8, 1/2 & 5/8 Chucks CSLF
13
Hold Down Finger 3/4 Chuck CSLF750
14
Chuck Isolator CSLN
15
Chuck Spring CSLS
16
Long Bracket CSLA-1
17
Short Bracket CSLA-2
18
20
PSR Twin Leg Ferrule Foot Plate
21
Stud Size Part #
22
3/8 QNW-037
23
1/2 QNW-050
24
5/8 QNW-062
25
3/4 QNW-075
18
27
Other Needed Accessories
28
Component Part #
29
Leg Widener CLSX
30
3/8 X 9” Legs (2 pcs.) Gun to Leg Widener
L-03709
L-03709
31
Legs (2 pcs.) Leg Widener To Foot Plate
32
Length to be determined based on stud length. See
Arc Stud Welding Legs for stock lengths.