Function
- Calculate the transformed section properties reflecting tendon and reinforcement.
- Input of reinforcement for the PSC / Composite Steel-I / Composite Steel-Box Sections becomes more user-friendly.
- Stress points can be defined at any position for various cross-sections.
Call
From the main menu, select [Properties] tab > [Section Properties] group > [Section Manager] > [Stiffness]
Input
Section Manager dialog box(Stiffness Mode)
Stiffness
Transformed section properties with tendon and reinforcement reflected can be calculated for the various section types (DB, PSC, Tapered Section, Composite Section, General and Composite General Section).
Transformed section properties can be calculated at the various locations (1/4, 2/4, 3/4 Part) of the Section. The placement of tendon and reinforcement can be viewed.
The existing two menus, which are ’r;Section Stiffness Scale Factor’ and ’r;Cross Section Viewer’, have been integrated.
Target Section & Element
The Elements are displayed under the assigned Section in the Tree.
Select an Element to input tendon information at an arbitrary location of the Element.
Part
Select the position (i, 1/4, 2/4, 3/4, or j) for which the cross section data of the element is to be produced.
Once the selection is made, the cross section view at that position is updated. In addition, the reinforcement and the tendon at that position is updated to the View and the Table.
View Point
Select the direction based on which the cross section data of the element is to be produced.
Tendon
Display the tendon in the View.
Property Name: Display the Tendon Property Name in the View.
Duct Hall: Display the Duct Hall in the View.
Reinforcement Bar
Display the Reinforcement Bar in the View
Stiffness Scale Factor
Boundary Group: Select a boundary group in which the section stiffness scale factor is to be included.
Scale Factor(I, J): Enter the scale factor for each stiffness component.
I = J: This becomes active only when the selected section is a tapered section, and different section scale factors can be applied to I-end and J-end.
Before: Valid for a composite section. The defined scale factors will be used for the calculation of member forces and stresses for the pre-composite section.
After: Valid for a composite section. The defined scale factors will be used for the calculation of member forces and stresses for the post-composite section.
All: If both Before and After are checked on, the defined scale factors will be used for the calculation of member forces and stresses for the pre- and post-composite sections.
If Es/Ec (Long Term) and Es/Ec (Shrinkage) are defined in the Section Data, Boundary Groups for the Long Term and the Shrinkage are automatically generated and the applied scale factors are displayed as well.
Area: Cross-sectional area
Asy: Effective Shear Area resisting shear forces in the element local y-axis
Asz: Effective Shear Area resisting shear forces in the element local z-axis
Ixx: Torsional Resistance about the element local x-axis
Iyy: Area Moment of Inertia about the element local y-axis
Izz: Area Moment of Inertia about the element local z-axis
Weight: Weight density used for calculating self-weight
Coordinate
Centroid: Display the locations of tendons and reinforcements with reference to the Centroid of the section.
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The coordinate system is displayed in the View, based on the Centroid. |
Tendon/rebar data is produced based on the Centroid. |
Left-Bottom : Display the locations of tendon and reinforcement with reference to the Left-Bottom.
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The coordinate system is displayed in the View, based on the Left-Bottom. |
Tendon/rebar data is produced based on the Left-Bottom. |
Show Stiffness... : Display the stiffness with Scale Factor, Reinforcement and Tendon taken into account.