SynC · Topic
These are the standards in the SynC Standards library that cover Connections. Each one is a complete, plain-language specification: the scope it applies to, the requirements that govern it, and a structured equipment datasheet listing the values a project has to decide — ratings, materials, setpoints, and the standards each is verified against. All of it is free to read without an account and published under CC BY-SA 4.0.
A standard usually carries several topics, so most of the entries below also appear under neighbouring subjects. The topics each one carries are listed on its own page.
Cold-formed steel deck for floor and roof construction in commercial, institutional, industrial, and multi-family buildings. Covers composite floor deck (acting compositely with structural concrete topping), non-composite form deck (acting as a permanent stay-in-place form for a concrete slab), and roof deck profiles (Type B wide-rib, Type N deep-rib, Type A narrow-rib, Type F intermediate-rib). Addresses material grade and galvanized coating selection (G60, G90), deck profile and depth, gauge, attachment to supports (arc spot welds, powder-actuated fasteners, screws), side-lap fastening, diaphragm action, concrete fill for composite slabs, openings and reinforcement, accessories (closures, pour stops, ridge and valley plates), and field inspection.
The bolted and welded connections that join hot-rolled structural steel framing members into a load-carrying structure: simple shear connections, fully restrained and partially restrained moment connections, vertical and horizontal bracing connections and their gusset plates, column splices, and the steel side of column base plate connections. Covers the assignment of connection design responsibility under AISC 303, the joint condition (snug-tight, pretensioned, or slip-critical) for each connection class, high-strength bolt assemblies under ASTM F3125 and their finish, the RCSC pretensioning methods and pre-installation verification, faying surface slip class and treatment, bolt hole types, the backing, weld tab, and access hole configurations at connection groove welds, load sharing between bolts and welds, the connection provisions AISC 341 imposes on the seismic force-resisting system, bolting inspection, and the handling of fastener assemblies.
Hot-rolled structural steel framing for commercial, institutional, and industrial buildings. Covers wide-flange beams and columns, hollow structural sections (HSS), channels, angles, plates, anchor rods, and all connection materials. Addresses fabrication, erection, bolted connections (bearing and slip-critical), welded connections, high-strength bolt pretensioning, shop and field coatings, surface preparation, camber, tolerances, special inspection, and nondestructive examination. Applicable to buildings in all seismic design categories; seismic-specific requirements follow AISC 341 where triggered.