The Complete Message:
∑Mdev / Mo> = 0.75 in limited ductility level A33 systems in the (X / Y) direction.
A33 type of system that transmits torque of the earthquake impact ductility level limited by reinforced concrete frames ductility limited is defined as buildings that are covered by the spaces with reinforced concrete walls.
220.127.116.11 agent dolayısıul to s üneklik level limited spaces reinforced concrete walls or ductility limited central steel braced frames torque transmitting ductility limited in buildings is used with concrete or steel frame Eq. (4.3) 't given condition must be provided.
∑ M DEV ≥ 0.75 M o (4.3)
Shearwall / shearwall group can be added to the structural system until the Equation 4.3 condition is met.
The structure can be designed by choosing high ductility level instead of limited.
∑ M DEV = In reinforced concrete and steel composite structural systems, the sum of the tipping moments caused by earthquake loads at the base of the reinforced concrete walls with high ductility level bond beam (with or without gaps) and central, eccentric or buckling-prevented steel braced frames
M o = Total tipping moment at the base from earthquake loads for the entire building