Advanced Package Training Scaffolding 2011.1 - Scia-Software GbR

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58 Advanced Training This example has illustrated the use of a buckling shape as imperfection. Depending on the geometry of the structure, this imperfection can have a large influence on the results due to the additional moments which occur. When using this method, it is very important to double check all applied steps: small changes to the loading or geometry require a re-calculation of the buckling shape and amplitude before a non-linear analysis may be carried out. As a final note: the buckling shape only gives information about a specific zone of the structure. The imperfection is applied at that zone and results/checks are only significant for that zone. Other combinations of loads will lead to another buckling shape thus to each load combination a specific buckling shape must be assigned and a steel code check should only be used on those members on which the imperfection applies. Since the applied buckling shape corresponds to a global mode, failure of these members will lead to a collapse of the structure.
12. Input Hinge Types and non-linear stiffness 59 Scaffolding For connections in a scaffolding structure, a check has to be performed on the normal forces, the shear forces and the moments. Various connection types are inserted in Scia Engineer. For the different connections, go to “Libraries -> Structure, Analysis -> Hinge type”. In this “Hinge type library” you can choose following types at the option” Hinge type”: Right angle coupler Friction sleeve Swivel coupler
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Advanced Package Training Scaffoldi
Page 3 and 4:
Contents 1. Introduction ..........
Page 5 and 6:
1. Introduction 5 Scaffolding This
Page 7 and 8: Materials 7 Scaffolding For the mat
Page 9 and 10: FLOOR BOARDS 9 Scaffolding The inpu
Page 11 and 12: END INPUT OF CONSTRUCTION 11 Scaffo
Page 13 and 14: q2: Partial area load (EN12811-1, 6
Page 15 and 16: Load Case 1: Self Weight 15 Scaffol
Page 17 and 18: 17 Scaffolding In the example discu
Page 19 and 20: 1 2 q p ( z) = ce ( z) ⋅ qb = ce
Page 21 and 22: q p e 21 Scaffolding EN 12811-1 §6
Page 23 and 24: 4. Results It is recommended to fir
Page 25 and 26: 6. Scaffolding SLS Check - EN 12811
Page 27 and 28: 7. Steel Code Check ULS Check - EN
Page 29 and 30: Stability Check Buckling data 29 Sc
Page 31 and 32: - Go to the menu “Steel -> Check
Page 33 and 34: 8. Scaffolding ULS Check - EN 12811
Page 35 and 36: 9. Non-Linear Combinations Overview
Page 37 and 38: 1a 5.2.2(3)c lb based on a global b
Page 39 and 40: These inclination functions are ent
Page 41 and 42: 41 Scaffolding The buckling curve u
Page 43 and 44: 43 Scaffolding In this figure, the
Page 45 and 46: Start Choose ΔF u0 = 0 F0 = 0 F =
Page 47 and 48: 47 Scaffolding As specified, the Ne
Page 49 and 50: 49 Scaffolding In the results menu,
Page 51 and 52: ∙ + ∙ = ∙ The equation f
Page 53 and 54: Example Stability_Imperfe Imperfect
Page 55 and 56: Buckling Shape [-] A polynomial has
Page 57: 57 Scaffolding Using this combinati
Page 61 and 62: The rigidities are filled out and t
Page 63 and 64: 63 Scaffolding It is assumed that t
Page 65 and 66: 13. Scaffolding - Coupler Check Whe
Page 67 and 68: The internal force My for this beam
Page 69 and 70: Example ULS Check - Scaffolding che
Page 71 and 72: 71 Scaffolding
Page 73 and 74: 73 Scaffolding Where L is the membe
Page 75 and 76: 75 Scaffolding
Page 77 and 78: Shear The design value of the shear
Page 79 and 80: For a solid bar, round tube and hho
Page 81 and 82: 17. Template To create a template,
Page 83 and 84: 3. Inserting the user block into an
Page 85 and 86: Annex A: Wind pressure versus Wind
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Advanced Package Training Scaffolding 2011.1 - Scia-Software GbR

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