Function
- Enter the sectional properties for the following structural elements: Truss, Tension-only, Compression-only, Cable, Gap, Hook, and Beam Element.
- In the Combined tab, you can input the sectional properties of a composite section formed by combining two different types of standard sections.
Call
From the main menu, select [Properties] tab > [Section Properties] group > [Section Properties] > [Combined]
Input
Section(Combined) dialog box
List of section shapes
In this dialog box, enter the section properties for a combined section made up by two standard section types.
User : Enter the main dimensions of standardized section shapes.
DB : Enter the main dimensions of standardized section shapes. Select the desired database from the right-hand DB list.
KS : Korean Industrial Standards
AISC2K(US) : American Institute of Steel Construction, 2000 (US Unit : lb, in)
AISC2K(SI) : American Institute of Steel Construction, 2000 (SI Unit : kN, m)
AISC : American Institute of Steel Construction
CISC02(US) : Canadian Institute of Steel Construction (US Unit : lb, in)
CISC02(SI) : Canadian Institute of Steel Construction (SI Unit : kN, m)
BS : British Standard
BS indicates BS4-1 revised prior to 1993.
DIN : Deutches Institut fur Normung e.v
JIS : Japanese Industrial Standards
JIS2K : Japanese Industrial Standards 2000
GB-YB : Guojia Biao Zhun-Yejin Bu Biao Zhun
GB-YB05 : Guojia Biao Zhun-Yejin Bu Biao Zhun(2005)
Pacific(SI) : Bentley Pacific Standards (SI Unit : kN, m)
IS84 : Indian Standards
CNS91 : Taiwan Standards
Data 1, Data 2
Enter the section data for individual components constituting the combined section.
Sect. Name : Enter directly a DB section name or select a desired DB from the Section list. When the section name is directly entered, it must correspond to the format of the DB section names.
Ex) KS, JIS : H 400X200X8/13, AISC : W36X280, CISC : HP310x110, BS : UB 406x178x54, DIN : HD400x288
H, B, ... : Refer to the diagram denoting section dimensions in the dialog box.
Consider Warping Effect(7th DOF)
You have the option to consider the torsional effects. When there is an uneven torsion resulting from the restricted torsional displacement, torque is resisted by St. Venant's torsional shear stress and warping torsion. In cases involving curved members, eccentric loads, or differences between the center of gravity and the shear center, simulating the warping torsion effect using a 1D beam element can provide more accurate results.
When considering the warping effect (7 degrees of freedom), the warping coefficient (Iw), warping functions (w1, w2, w3, w4), and shear deformations due to the twisting moment can be checked in the sectional properties dialog box.
Applicable element types : General beam/Tapered beam
Applicable boundary condition types : Supports, Beam End Release
Applicable analysis types : Linear Static, Eigenvalue, Buckling, Response Spectrum, Construction Stage Analysis, Moving Load Analysis
Post-processing results : Reviewable in reaction forces, displacements, member forces, and stresses.