15.3.2
- Kemalcan Struja (Unlicensed)
- Zeynep Aladağ
Sectional damage conditions, limit values and damage of plastic joints automatically defined to the elements are calculated automatically.
Damage Area is automatically determined according to the cross-sectional damage situations of plastic hinges .
ICONS
SH = Limited Damage
KH = Controlled Damage
MM = Pre-
Collapse θ p (KH) = Allowable plastic rotation limit for Controlled Damage performance level [rad]
θ p (DD) = Allowable plastic rotation limit for Preventing Performance level [rad]
θ p (SH) = Permissible plastic rotation limit for Limited Damage performance level [rad]
The damage regions are determined according to the plastic rotation values of the plastic hinges defined for the elements showing ductile behavior , the plastic rotation values calculated with the Assessment and Design According to the Shape Change (ŞGDT) approach and the plastic rotation limit values.
Plastic rotation values of plastic hinges,
Elements that do not reach the Limited Damage (SH) limit value are in the Limited Damage Zone
Elements that fall between the Limit Damage (SH) and Controlled Damage (KH) limit values are in the Significant Damage Zone
Elements that fall between the Controlled Damage (KH) and Pre-Collapse (LO) limit values are in the Advanced Damage Zone
Elements exceeding the Pre-Emigration (LO) limit value are in the Immigration Area
they take place. The limit values of plastic hinges are plotted in the moment-plastic rotation graph shown below. The Limited Damage (SH) value is shown at the zero point as seen. In this case, the cross section plastic non-rotation deformations remained within elastic limits. As soon as this value is exceeded, in other words, when the cross-section yield moment reaches M y , the cross-section begins to deform plastic and the moment on it remains constant. When the plastic rotation value reaches the collapse point, it loses its cross-sectional carrier and collapses.
In the graphic below, the damage zones of a sample building drawn according to the section damage zones of the elements are shown.
