The total curvature demand is obtained using the displaced axis rotation calculated while performing the linear performance analysis, the yield moment and yield curvature values calculated using the moment curvature relation.
...
| Tip |
|---|
|
...
ICONS
E = Concrete modulus of elasticity
h = Section height
I = Moment of inertia
L p = Plastic hinge length
l c = Element net opening
M y = Effective yield moment
M yi = Effective yield momentat i end
M yj = Effective yield moment at j end
Δ = Element translation between nodes
ϕ y = Flow curvature
ϕ t = Total curvature
θ p =Plastic rotation demand
θ y = Flow rotation
θ yi = flow rotation at end i
θ yj = flow rotation at end j
θ k = Displaced axis rotation
θ ki = displaced axis rotation at end i
...
The following example reports the total curvature lead to columns φ t , return flow θ y , the yield torque M y , plastic rotation demand θ p , yield curvature φ y , φ total curvature lead t is shown.
...
Next Topic
Related Topics