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Equipment & Accessories for Steel Fabrication & Erection

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Accelerating structural steel fabrication and erection

Ever since the first of the world’s all-steel framed skyscrapers was erected in 1889, steel has been an essential component in their building, fabrication and erection. Today, the use of steel in construction has become increasingly sophisticated – with headed weld studs playing an integral role. These weld studs enable construction teams to accelerate their work and increase their productivity.

Headed weld studs are composed of shear connectors and headed anchors. Shear connectors are the larger of the two with diameters of ¾”, 7/8” and 1”.

Headed anchors diameters can be ½” or 5/8”.

Metal Decking

The most common use of headed weld studs in steel construction is the stud-welding of shear connectors through metal decking onto the steel beams. Metal deck forming provides a permanent form for poured concrete floors and offers a range of benefits, including faster construction time, less reinforcing steel, little or no shoring, easier electrification of floors, lower cost of suspended ceilings, and lateral restraint for supporting members.

The shear connectors increase the “shear strength” of the structure, transferring weight from the floor to the steel beams. This method of composite construction produces a load-bearing structure that combines high strength and lower floor height with lighter weight, allowing structural steel work crews to work several levels above other trades.

Composite Beams

Another common application is the use of shear connectors in composite beam construction of structural steel bridges. Typical composite beam construction on bridges consists of a steel beam, a reinforced concrete slab, and shear connector studs [LINK]. This combination increases the strength and stiffness of the effective section without the need to use heavier steel beams.

Headed anchors are commonly welded on to concrete embed plates which are “embedded” in concrete. The embed plate is designed so that the headed anchors yield before the concrete crushes. They deliver specified axial tension and shear strength values to secure steel to concrete. Unlike shear connectors which are mostly welded in the field, embed plates are fabricated in the shop.

At Fraser Molloy, we offer a complete line of shear connector studs [LINK], [OTHER PRODUCTS FOR STEEL FAB/ERECTION], and [OTHER PRODUCTS FOR STEEL FAB/ERECTION] – along with helpful advice to ensure the success of your steel fabrication and erection projects.

Inverters

Arc Inverters

  • HBS A 25

  • HBS IT 90

  • Nelson N1500i

  • Nelson N800i

  • Pro Weld 1250i

Weld Guns

Arc Weld Guns

  • HBS A 22

  • HBS A 25

  • Pro Weld AG-805 Medium Duty Arc Gun

  • Pro Weld AG-900 Heavy Duty Arc Gun

Weld Studs

Arc Weld Studs

  • Deformed Bar Anchor

  • Full Base Thread

  • Full Thread

  • Headed Anchor

  • Partial Thread

  • Shear Connector 1″ Diameter

  • Shear Connector 3/4″ & 7/8″ Diameter

Welders

Arc Welders

  • HBS IT 90

  • Midwest Fasteners, Inc. UA-1800

  • Midwest Fasteners, Inc. UA-500

  • Nelson N1500i

  • Nelson N800i

  • Nelson Nelweld 4000

  • Nelson Nelweld 6000

  • Pro Weld 1250i

  • Pro Weld ARC-1850

  • Pro Weld ARC-3000

  • Pro Weld ARC-800

Accessories

Arc Accessories

  • Adaptors (Arc)

  • Arc Stud Welding Legs

  • Cable Connectors & Lugs

  • Chucks

  • Feet

  • Ferrule Foot Plates

  • Ferrule Grips

  • Headed Stud Chucks

  • Special Accessories

  • Weld Thru Deck Accessories

CD Accessories

  • Adaptors (CD)

  • Collets

  • Inserts

  • Magnetic Chucks

  • Spark Shields

  • Special Accessories

  • Stops

Fraser, Molloy & Associates, LLC

32 Spice Street · Charlestown, MA 02129-1306
Tel: (617) 241-0495 | Fax: (617) 241-8322 | Email

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