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1. 1. Structural Analysis And DesignProgram<br />Developed by<br />Bentley Systems<br />
2. 2. “What” Is Analysis?<br />Calculation of the response of structures to<br />actions<br />
3. 3. “Why” to perform an Analysis<br />To calculate<br /> Stress distribution<br /> Natural frequencies<br /> Displacement<br /> Critical Buckling loads.<br />
4. 4. Methods of Engineering Analysis<br /><ul><li>Experimental Method </li></ul> Example: Prototype model<br /><ul><li>Analytical method or Theoretical Analysis</li></ul> Using Mathematical Differential equations<br /><ul><li>Numerical method</li></ul>Finite element method*<br />
5. 5. Basic TerminologiesStructural analysis<br />Stress<br />Strain<br />Poisson ratio<br />Hook's law<br />Young's modulus<br />Bending moment<br />Shear force<br />Stress strain curve for various materials<br />Linear<br />Nonlinear<br />Isotropic vs. anisotropic vs. orthotropic<br />
6. 6. Basic TerminologiesStructural analysis<br />Structure<br />Beam<br />Column<br />Truss<br />
7. 7. Introduction to FEM & FEA<br />FEM-Finite element method<br />FEA –Finite element analysis<br />
8. 8. FEM<br />Finite element method of structural analysis was created by academic and industrial researches during 1959’s and 1960’s<br />Theoretical approach.<br />Examples <br /> Euler's rule, LaGrange method, <br />Newton raphson method, Fourier series<br />
9. 9. Nature of FEM<br />Force method (Forces unknown)<br /> Strain energy method<br /> Consistent deformation method<br /> Matrix flexibility method<br /> Clayperons theorem of 3 moments<br />Displacement method (Displacements unknown)<br /> Kanis method<br /> Slope deflection method<br /> Matrix stiffness method<br /> Moment distribution method<br /> FEM<br />
10. 10. FEA<br />FEA-<br /> simulate loading conditions on design & determine design response to these conditions <br /> The design is modeled using discrete elements called elements<br /> The sum of response of all elements in the model gives the response of design<br />
11. 11. Problem types in FEA<br />Boundary value problem-static and steady state analysis<br />Initial value problem-fluid flow<br />Eigen value problem-Modal analysis, vibration and natural frequency<br />Boundary initial value problem-forced vibration, transient and dynamic analysis<br />
12. 12. FEM<br />Nodes<br />Elements<br />Types of elements<br />1D-Line element(Min 2 nodes)<br />2D-Plane element (Area-Min 4 node)<br />3D-Solid element (Volume-min 8 nodes)<br />
13. 13. Stages<br />Preprocessor<br />Solution<br />Postprocessor<br />
14. 14. Meshing<br />Process of discritization of a structure into element and nodes<br />Infinite no of D.O.F to Finite D.O.F<br />Types of discritization<br /> Natural<br /> Artificial<br />
15. 15. Basic terminologies meshing<br />Aspect ratio<br />Skewing<br />Warp age<br />Types of refinement<br />H refinement<br />P refinement<br />
16. 16. Meshing-Importance & drawbacks<br />Why should we mesh<br />Element quality<br />Problems associated with meshing<br />
17. 17. ABOUT STAAD PRO<br />A comprehensive integrated FEA and design solution, including a state of the art user interface, visualization tools and integrated design codes<br />Capable of analyzing a structure exposed to dynamic response, soil structure interaction or wind, earthquake and moving loads<br />
18. 18. Static analysis<br />Analysis of a structure for various loads under static condition i.e. component under rest when loads are applied<br />Examples<br />Holding devices-Clamp or fixture analysis<br />Types <br /> Linear analysis<br /> Non linear analysis<br />
19. 19. Dynamic analysis<br />Analysis of a structure for various loads under Dynamic condition i.e. component is in motion when loads are applied or time varying loads<br />Examples<br />Suspension systems of a vehicle <br />Types <br /> Linear analysis<br /> Non linear analysis<br />
20. 20. Structural analysis-Design consideration<br />Change design<br />Alternate material<br />
22. 22. Incorporating design codes for 15 different countries
23. 23. Most comprehensive and universal.
24. 24. STAAD.Pro meets the rigid requirements of NUPIC/NRC (Nuclear Regulatory Commission) by conforming to the 10CFR PART 50, APPENDIX B, Section II, "Quality Assurance Program" and ASME NQA-1-2000 (Quality Assurance Requirements for Nuclear Facility Applications) standards. Development, maintenance, and support are all based upon the highest quality standards.</li></li></ul><li>About NRC<br />The U.S. Nuclear Regulatory Commission (NRC) was<br />created as an independent agency by Congress in 1974 to<br />enable the nation to safely use radioactive materials for<br />beneficial civilian purpose while ensuring that people and<br />the environment are protected.<br />
25. 25. Features of STAAD PRO<br />Analysis <br />The STAAD Analysis Engine has 2D<br />And 3Dcapabilities for solving problems containing<br />Beams, plate elements and 8 node bricks. <br />A wide range of support conditions, load types and<br />various other member/element specifications are<br />available for combination with these features <br />
26. 26. Features of STAAD PRO <br />Postprocessor - Space Frame<br /><ul><li>Logical Page Control Layout
27. 27. Dynamic Query Function
28. 28. Combine View ports to display various results
29. 29. Pictures of Results for inclusion in Output Report
30. 30. Graphs of Bending Moments, Shear etc. for individual members
31. 31. Graphics Interactive with Results Tables
32. 32. Combine Load diagrams with Results
33. 33. Mode Shapes/Natural Frequency Results, Time History Plots </li></li></ul><li>Features of <br />STAAD PRO<br />Steel Design<br /><ul><li>Database of section sizes for a variety of countries, eg. United Kingdom, USA, French, German, European etc.
34. 34. Steel Design as per IS 800 Standards
35. 35. Specify Composite Action for Design
36. 36. User Specified Design Parameters
37. 37. Automatic Iterative Design to Least Weight Algorithm, automatically updates analysis model and re-analyses
38. 38. Design Fixed Groups, eg isolate beams and columns </li></li></ul><li>Features of STAAD PRO<br />Concrete Design<br /><ul><li>Design Concrete for Beams/Columns/Slabs
39. 39. IS 456,BS8110, BS8007, India, French, German, Spanish, Russian etc. Design Codes
40. 40. Reinforcement Details shown on Beam/Column
41. 41. Contours of Reinforcement available for Finite Element Slabs
42. 42. Tabular Results available
43. 43. Form Continuous Members from Analysis Elements
44. 44. Individual Groups and Briefs
45. 45. Combine Concrete & Steel Design in one run </li></li></ul><li>Products<br />Products for the analysis and design of buildings, bridges, plants, bridges, and civil structures:<br />STAAD FOUNDATION<br />STAAD PRO<br />Advanced Analysis Module <br />STAAD.beava <br />Section wizard <br />STAAD OFFSHORE<br />STAAD(X).Tower <br />LEAP PRESTO <br />LEAP VERTEX<br />LEAP PC-HELP <br />Revit Structure Link <br />RAM Elements <br />RAM Concept  <br />RAM Connection <br />RAM Structural System <br />RAM Steel <br />RAM Frame <br />RAM Foundation <br />RAM Concrete<br />
46. 46. Other products<br />Documentation and BIM products for<br />enabling the creation of drawings and <br />Building Information Modeling:<br />Bentley Structural <br />RAM CAD studio<br />
47. 47. Other products<br /> Engineering Analysis (CAE) products for analytical tools for stress and pipe-stress analysis, fluid-flow and pulsation analysis, and local stress analysis:<br />Bentley Auto PIPE <br />
48. 48. Other products<br /> Detailing products for structural steel and concrete reinforcing detailing:<br />Bentley Power Rebar <br />ProStructures  <br />ProSteel  <br />ProConcrete<br />
49. 49. Firms <br /><ul><li>Structural engineering
50. 50. Structural consultant
51. 51. Multi-discipline E/A and A/E
52. 52. Departments in construction companies, owner/operators, and government agencies </li>