BuildingTcl -- PlasticHingeLengthModel

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  • GaussLobattoIntegrationWeights
gives the same hinge length as the force-based beam-column element with 4 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)


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.)