Each structural engineering office uses their own set of plan symbols; however, the symbols below are fairly standard at many offices.  Refer to the symbol legend sheet for special symbols used in a particular set. We also have another article that can help you identify structural abbreviations used in a drawing set.

Moment Connection

Moment Connection Symbol

Cantilevered Moment Connection

Cantilevered Moment Connection Symbol

Braced Frame

Braced Frame Symbol

Steel Column Encased in Concrete

Encased Column Symbol

Slab Opening

Slab Opening Symbol

Stepped or Depressed Slab

Stepped Slab Symbol

Span Direction

Span Direction Symbol

Help make Archtoolbox better for everyone. If you found an error or out of date information in this article (even if it is just a minor typo), please let us know.