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 Symbol

Moment Connection

Cantilevered Moment Connection Symbol

Cantilevered Moment Connection

Braced Frame Symbol

Braced Frame

Encased Column Symbol

Steel Column Encased in Concrete

Slab Opening Symbol

Slab Opening

Stepped Slab Symbol

Stepped or Depressed Slab

Span Direction Symbol

Span Direction

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