Assignment of design to constructors: A discussion and direction

 

INTEGRATED PROJECT DELIVERY APPROACH
Design solutions for engineered components are considered delegated design. In these cases, a contribution by a registered professional is required to complete the deferred design component, or the component is directly associated with building code compliance. This category includes items such as:

  • structural steel connections;
  • steel decking;
  • composite steel (owsj, heavy truss);
  • wind loadbearing studs;
  • light gauge loadbearing cold-formed framing;
  • stairs;
  • guard and handrail anchors to structure;
  • custom guards and handrails (non-pre-engineered systems);
  • composite wood (trusses, mass timber, glued-laminated [glulam] timber, etc.);
  • curtain wall anchors to structure;
  • custom curtain wall—themed or non-pre-engineered systems (this would be better forming a part of pre-construction design-assist category);
  • fall arrest anchors to structure;
  • fire suppression systems; and
  • seismic restraints for non-structural systems.

This list is not intended to be all-inclusive, and additional content will need to be considered for future development of delegated-design components.

Design solutions for specialty components are considered assigned design. A contribution by a registered professional is not required for code compliance, but certification or confirmation of properties is required. This category includes items such as:

  • concrete mix design;
  • door hardware (this would be better forming a part of pre-construction design-assist category);
  • firestopping;
  • skylights;
  • pre-engineered guards and handrails;
  • fall arrest systems (this would be better forming a part of pre-construction design-assist category, but is often dealt with as post-construction design-assist contribution);
  • standard pre-engineered systems;
  • custom canopies;
  • pre-engineered structures; and
  • integrated security systems (this would be better forming a part of pre-construction design-assist category).

 

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