BuildingTcl -- PlasticHingeLengthModel

In the current version, the characteristics of each PlasticHingeLengthModel cannot be modified

Models Available

• GaussLobattoIntegrationWeights

gives the same hinge length as the force-based beam-column element with 4 integration points:

Lp=0.05*ElementLength

• GaussLobatto5IntegrationWeights

gives the same hinge length as the force-based beam-column element with 5 integration points:

Lp=0.05*ElementLength

• Priestley96

Lp1 = 0.08*(ElementLength)+0.15*(fY_ksi)/(Db);

Lp2 = 0.3*(fY_ksi)*(Db);

Lp = min(Lp1,Lp2)

• Berry06

Lp1 = 0.05*(ElementLength) + 0.26*(fY_ksi)*(Db)/(fpc_ksi)^2

Lp2 = 0.25*(ElementLength)

Lp = min(Lp1,Lp2)

• Mattock67

Lp = 0.05*(ElementLength) + 0.5*(ElementDepth)

• HOver2

Lp = 0.5*(ElementDepth)

• HOver1

Lp = 1.0*(ElementDepth)

• Point05L

Lp = 0.05*(ElementLength)

• Point08L

Lp = 0.08*(ElementLength)

Arguments

The following are calculated internally:

ElementLength

individual-element length

fY_ksi

yield strength of the longitudinal reinforcement in the section in ksi (if not specified in section = 60ksi)

Db

diameter of longitudinal reinforcement in the section (if not specified in section = 1.0)

fpc_ksi

nominal compressive strength of concrete in section (if not specified in section = 4.0 ksi)

ElementDepth

depth of cross section (if not specified in section = 0.)

---

BuildingTcl -- addElementType: ElementModelLabel beamWithHinges

BuildingTcl -- addElementType

Return to BuildingTcl Command Language Manual