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ICONS
d b = Diameter of longitudinal reinforcement (average in tensile) [m]
(EI) e = Effective section stiffness of column, beam, tie beam or curtain modeled according to the agglomerated plastic behavior
f y = Average (expected) yield strength of reinforcing steel [MPa]
f ce = Average (expected) compressive strength of concrete [MPa]
h = Section height [m]
L s = Shear opening [m]
M y = Effective yield moment [kNm]
ϕ y = Curvature of yield [m -1 ]
θ y = Flow Status to the axis of rotation likelihood disposition [rad]
η = in the calculation of the first rotation Pour beams and columns, curtains received coefficient 0.5
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As described above, the effective cross-section stiffness is calculated automatically in the elements modeled according to the piled plastic behavior . Equation (5.2) and Equation (5.3) are calculated separately for each element.
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In the concrete elements defined in the new buildings, the effective section stiffness of the elements modeled linearly along the length between the plastic hinges can also be determined according to Table 4.2 specified in TBDY Section 4.5.8 . This option is at the discretion of the user.
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