SCAD Office Implementation of EUROCODES in steel structural design

Transcription

1 METNET International Workshop Vilnius Gediminas Technical University Vilnius, Lithuania SCAD Office Implementation of EUROCODES in steel structural design Viktor KARPILOVSKY, PhD Eduard KRYKSUNOV, PhD Anatily PERELMUTER, Dr.Sc, Prof. SCAD Soft Vitalina YURCHENKO, PhD Kyiv National University of Civil Engineering and Architecture

2 SCAD Office : SCAD++ general description SCAD++ is an universal FEM computer complex with functions and capabilities typical for standard FEM software SCAD++ FEM Solver: Structural & dynamic analysis SCAD++ Standard Tools: Creation and verification of FE models Analysis of results Generation of reports Vilnius, 18 th of April, /23

3 SCAD Office : SCAD++ general description Special procedures for non-standard design problems have been also implemented in SCAD++ Special Procedures: Progressive Collapse Calculation Variations of Design Model Erection Mode Complex Dynamic Analysis: Wind Flow Pulsation Seismic Action Dynamic analysis under the seismic action can be performed using: Linear spectrum analysis Direct integration of motion equations Integration of accelerogram Vilnius, 18 th of April, /23

4 SCAD Office : SCAD++ general description The SCAD++ computer complex has got additional tools intended to implement building and structural design codes: 1. Automatic generation of unfavorable combinations of internal forces and displacements 2. Verifications of structural members and joints acc. to specified design codes Reinforce concrete structures Steel structures Vilnius, 18 th of April, /23

5 SCAD Office : Module based technique Implementation of design codes Software to implement design codes for stone, steel, reinforced concrete and timber structures Profiles Data Based Software to create and calculate cross-sections SCAD ++: FEM Solver & Tools Vilnius, 18 th of April, /23

6 SCAD Office : Module based technique Design and verification of steel structures KRISTALL: members and struct. SCAD ++ FEM Solver & Tools SECTION BUILDER: profiles and plate sections COMET: joints and connections Software to design and check steel structural members and joints SECTION VIEWER TONUS: thin-walled sections Software to create and calculate steel cross-sections Vilnius, 18 th of April, /23

7 SCAD Office : SCAD++ Settings Automatic Generation of Design Combinations EN 1990 & NADs implementation The EN 1990 Settings tab enables to select the partial factors for actions in compliance with EN 1990 and in compliance with specified National Annex. Vilnius, 18 th of April, /23

8 SCAD Office : SCAD++ Settings Verification of steel structural members acc. to EN & EN EN & EN & NADs implementation The EN 1993 Settings tab enables to select the partial safety factors in compliance with EN 1993 and in compliance with specified National Annex. Vilnius, 18 th of April, /23

9 SCAD Office : SCAD++ Automatic Generation of Design Combinations Loading cases according to EN1990 requirements Various loading cases for the combination of actions at the ULS & SLS according to EN 1990 requirements have been realized in SCAD++ (e.g. ULS (STR/GEO) - permanent/transient, SLS - quasi-permanent, etc.) Vilnius, 18 th of April, /23

10 SCAD Office : SCAD++ Automatic Generation of Design Combinations Logical relationship between loadings The Design Combinations of Forces and Displacmenets dialog box includes a wide range of options to create design combinations automatically. When determining the design combinations the logical relationship between loadings reflecting their physical meaning and EN1990 requirements are taken into account, e.g. mutually exclusive, related, simultaneous etc. Vilnius, 18 th of April, /23

11 SCAD Office : SCAD++ Automatic Generation of Design Combinations DCIF Criteria & DCD Criteria Extreme values of normal and shear stresses in the control points of the section of bar finite element as well as unfavorable value of the eccentricity are used as DCIF criteria to generate Design Combinations of Internal Forces automatically: M M V M V M A N ; A ; A y, Ed z, Ed y x z x k Ed y z lz, i ly, i lz1 lz2 ly1 ly2 M y, Ed n M z, Ed m A NEd sin sin l 8 l 8 z, i y, i Extreme values of linear displacements are used as DCD criteria to generate Design Combinations of Displacements automatically: max X; min X; max Y; min Y; max Z; min Z; max X Y Z Vilnius, 18 th of April, /23

12 SCAD Office : SCAD++ Automatic Generation of Internal Forces Combinations to ULS checks Design combinations of internal forces are generated automatically for each design section of each finite element of FE design model based on DCIF criteria, taken into account combination rules required by EN1990 and also using logical relationships between loadings specified by the user Vilnius, 18 th of April, /23

13 SCAD Office : SCAD++ Automatic Generation of Displacements Combinations to SLS checks Design combinations of displacements are also generated automatically for each node of FE design model based on DCD criteria, taken into account combination rules required by EN1990 and also using logical relationships between loadings specified by the user Vilnius, 18 th of April, /23

14 SCAD Office : SCAD++ STEEL Postprocessor Verification of steel structural members acc. to EN & EN Structural members concept based on FEM approach Structural member is a set of bar finite elements, which models a physically homogeneous element of a building structure. A continuous chain of bar finite elements with the following properties is considered as a structural member: finite elements included in the chain lie on one straight line without gaps; all finite elements of the chain have the same FE type and stiffness type; all finite elements of the chain have the same orientation of the local principal cross-sectional axes; finite elements of the chain do not have rigid inserts and hinges (hinges are allowed only in the first and the last node of the chain). Vilnius, 18 th of April, /23

15 SCAD Office : SCAD++ STEEL Postprocessor Verification of steel structural members acc. to EN & EN Input of initial data: structural members specification Design lengths for flexural buckling which will be used in buckling verifications The following structural member types have been realized: General member type Column Beam Truss member Structural member type: Vilnius, 18 th of April, /23

16 SCAD Office : SCAD++ STEEL Postprocessor Verification of steel structural members acc. to EN & EN Results: code-based verifications factors STEEL Postprocessor implements detail verifications of steel structural members according to EN & EN Full package of strength and buckling verifications are performed for all specified structural members Vilnius, 18 th of April, /23

17 SCAD Office : SCAD++ STEEL Postprocessor Verification of steel structural members acc. to EN & EN Automatic construction of effective cross-sections STEEL Postprocessor determines the corresponded ratios of the cross-section parts subjected to compression stresses and performs the classification automatically. For those design sections when the local buckling occurs all verifications are formulated depending on elastic properties of the effective cross-section constructed automatically with optional determination of effective widths acc. to EN : AC:2009, Cl , and EN :2006, Cl. 4.4 Annex E. Vilnius, 18 th of April, /23

18 SCAD Office : SCAD++ STEEL Postprocessor Verification of steel structural members acc. to EN & EN Set of strength verifications Tension strength under the axial force N (acc. to 6.2.3) Compression strength under the axial force N (acc. to 6.2.4) Bending strength under the action of bending moments My (Mz) (acc. to 6.2.5) Bending strength under the biaxial bending (acc. to ) Shear strength under the action of shear forces Qz (Qy) (acc. to ) Bending strength under the combined action of bending moment My (Mz) and shear forces Qz (Qy) (acc. to 6.2.8) Bending strength under the combined action of bending moments My, Mz and axial force N (acc. to 6.2.9) Bending strength under the combined action of bending moment My, axial force N and shear force Qz (acc. to ) Vilnius, 18 th of April, /23

19 SCAD Office : SCAD++ STEEL Postprocessor Verification of steel structural members acc. to EN & EN Set of strength verifications Tension strength under the axial force N (acc. to 6.2.3) Compression strength under the axial force N (acc. to 6.2.4) Bending strength under the action of bending moments My (Mz) (acc. to 6.2.5) Bending strength under the biaxial bending (acc. to ) Shear strength under the action of shear forces Qz (Qy) (acc. to ) Bending strength under the combined action of bending moment My (Mz) and shear forces Qz (Qy) (acc. to 6.2.8) Bending strength under the combined action of bending moments My, Mz and axial force N (acc. to 6.2.9) Bending strength under the combined action of bending moment My, axial force N and shear force Qz (acc. to ) Vilnius, 18 th of April, /23

20 SCAD Office : SCAD++ STEEL Postprocessor Verification of steel structural members acc. to EN & EN Set of strength verifications Tension strength under the axial force N (acc. to 6.2.3) Compression strength under the axial force N (acc. to 6.2.4) Bending strength under the action of bending moments My (Mz) (acc. to 6.2.5) Bending strength under the biaxial bending (acc. to ) Shear strength under the action of shear forces Qz (Qy) (acc. to ) Bending strength under the combined action of bending moment My (Mz) and shear forces Qz (Qy) (acc. to 6.2.8) Bending strength under the combined action of bending moments My, Mz and axial force N (acc. to 6.2.9) Bending strength under the combined action of bending moment My, axial force N and shear force Qz (acc. to ) Vilnius, 18 th of April, /23

21 SCAD Office : SCAD++ STEEL Postprocessor Verification of steel structural members acc. to EN & EN Set of strength verifications Tension strength under the axial force N (acc. to 6.2.3) Compression strength under the axial force N (acc. to 6.2.4) Bending strength under the action of bending moments My (Mz) (acc. to 6.2.5) Bending strength under the biaxial bending (acc. to ) Shear strength under the action of shear forces Qz (Qy) (acc. to ) Bending strength under the combined action of bending moment My (Mz) and shear forces Qz (Qy) (acc. to 6.2.8) Bending strength under the combined action of bending moments My, Mz and axial force N (acc. to 6.2.9) Bending strength under the combined action of bending moment My, axial force N and shear force Qz (acc. to ) Vilnius, 18 th of April, /23

22 SCAD Office : SCAD++ STEEL Postprocessor Verification of steel structural members acc. to EN & EN Input of initial data: structural members specification Additionally, user can limit to perform verifications of steel structural members assuming that the deformations of steel are ONLY in elastic range. Vilnius, 18 th of April, /23

23 SCAD Office : SCAD++ STEEL Postprocessor Verification of steel structural members acc. to EN & EN Set of buckling verifications Buckling strength restricted by flexural buckling under the axial compression (acc. to 6.3.1) Buckling strength restricted by torsional and flexural-torsional buckling (acc. to 6.3.1) Buckling strength restricted by lateral-torsional buckling under the bending moment (acc. to , ) Buckling strength under the combined action of bending moments and axial force (acc. to 6.3.3) Vilnius, 18 th of April, /23

24 SCAD Office : SCAD++ STEEL Postprocessor Verification of steel structural members acc. to EN & EN Set of buckling verifications Buckling strength restricted by flexural buckling under the axial compression (acc. to 6.3.1) Buckling strength restricted by torsional and flexural-torsional buckling (acc. to 6.3.1) Buckling strength restricted by lateral-torsional buckling under the bending moment (acc. to , ) Buckling strength under the combined action of bending moments and axial force (acc. to 6.3.3) Vilnius, 18 th of April, /23

25 SCAD Office : SCAD++ STEEL Postprocessor Verification of steel structural members acc. to EN & EN Set of buckling verifications Buckling strength restricted by flexural buckling under the axial compression (acc. to 6.3.1) Buckling strength restricted by torsional and flexural-torsional buckling (acc. to 6.3.1) Buckling strength restricted by lateral-torsional buckling under the bending moment (acc. to , ) Buckling strength under the combined action of bending moments and axial force (acc. to 6.3.3) Vilnius, 18 th of April, /23

26 SCAD Office : SCAD++ STEEL Postprocessor Verification of steel structural members acc. to EN & EN Set of buckling verifications Buckling strength restricted by flexural buckling under the axial compression (acc. to 6.3.1) Buckling strength restricted by torsional and flexural-torsional buckling (acc. to 6.3.1) Buckling strength restricted by lateral-torsional buckling under the bending moment (acc. to , ) Buckling strength under the combined action of bending moments and axial force (acc. to 6.3.3) Vilnius, 18 th of April, /23

27 SCAD : SCAD++ Settings Verification of steel structural members acc. to EN & EN EN & EN implementation: settings For structural members subjected to bending and compression, the program enables to select the method for the general stability verification. STEEL Postprocessor provides options for determining interaction formulas by factors of the first method (Annex A) or the second method (Annex B). Vilnius, 18 th of April, /23

28 SCAD Office : SCAD++ STEEL Postprocessor Verification of steel structural members acc. to EN & EN Buckling verifications: particularities Elastic critical buckling loads as well as elastic critical moment for lateral-torsional buckling are determined automatically depending on boundary conditions using known analytical solutions Vilnius, 18 th of April, /23

29 METNET International Workshop Vilnius Gediminas Technical University Vilnius, Lithuania Thank for your kind attention Viktor KARPILOVSKY, PhD Eduard KRYKSUNOV, PhD Anatily PERELMUTER, Dr.Sc, Prof. SCAD Soft Vitalina YURCHENKO, PhD Kyiv National University of Civil Engineering and Architecture