4.16.7. RCCircular Section

section('RCCircularSection', secTag, coreMatTag, coverMatTag, steelMatTag, d, cover_depth, Ab, NringsCore, NringsCover, Nwedges, Nsteel, '-GJ', GJ <or '-torsion', matTag>)

This command allows the user to construct an RCCircularSection object, which is an encapsulated fiber representation of a circular reinforced concrete section with core and confined regions of concrete.

secTag (int)	unique section tag
coreMatTag (int)	tag of uniaxialMaterial assigned to each fiber in the core region
coverMatTag (int)	tag of uniaxialMaterial assigned to each fiber in the cover region
steelMatTag (int)	tag of uniaxialMaterial assigned to each reinforcing bar
d (float)	section radius
cover_depth (float)	cover depth (assumed uniform around perimeter)
Ab (float)	area of each reinforcing bar
NringsCore (int)	number of fiber rings in the core
NringsCover (int)	number of fiber rings in the cover
Nwedges (int)	number of fiber wedges for the section
Nsteel (int)	number of reinforcing bars
GJ (float)	secton torsional stiffness
matTag (int)	tag of uniaxialMaterial assigned to section torsion response

Note

One of the -GJ or the -torsion inputs is required

For more general reinforced concrete section definitions, use the Fiber Section command.