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76 An analytical method to calculate this ratio is developed through the use of a model that satisfies equilibrium and compatibility conditions. Hypothesis: the web is under pure bending moment and the axial deformation in each plate element of the corrugated web is negligible. δ B VIRTUAL WORKS PRINCIPLE M i ⋅ M F ⋅c ⋅ senα ⋅c ⋅ senα F ⋅c ⋅ senα ⎛ x ⎞ ⎛ ∫ dS = dx + ⎜1 − ⎟ ⋅ c ⋅ sen ⎜1 − EJ EJ EJ ⎝ c ⎠ ⎝ = ∫ ∫ 3D α EJ S A B C x ⎞ ⎟dx c ⎠ ∆ 3D 2 2 F ⋅c ⋅ sen α ⎛ = 48 ⎜a + 3 E ⋅t ⋅ H ⎝ ∆ FLAT = w F ⋅ L H ⋅t w h ⋅ E c ⎞ ⎟ 3 ⎠ r eq = ∆ ∆ = 48⋅c L 2 ⋅ sen α ⎛ ⎜ a + 2 ⋅t ⎝ 3 2 3D c flat h w ⎞ ⎟ ⎠
77 Longitudinal profile Reduction of modulus of elasticity to take into account longitudinal stiffness Web corrugation ES E S = 350
Page 1 and 2:
1 Prestressed composite box girder
Page 3 and 4:
• Pont de la Corniche, France 3
Page 5 and 6:
• Ginzan-Miyuki Bridge, Japan 5
Page 7 and 8:
• Long span building structures (
Page 9 and 10:
Verrieres bridge - France 9
Page 11 and 12:
Gassino bridge - Torino - Italy 11
Page 13 and 14:
Some theory stuff 13
Page 15 and 16:
15 Bending behaviour of corrugated
Page 17 and 18:
17 Shear behaviour of corrugated we
Page 19 and 20:
1/d 19 Shear behaviour of corrugate
Page 21 and 22:
21 Shear behaviour of corrugated we
Page 23 and 24:
23 Creep and relaxation functions u
Page 25 and 26: Construction procedure common to bo
Page 27 and 28: 27 Position Continuity support Mids
Page 29 and 30: Phase 1 - Positioning of steel box
Page 31: 31 Phase 4 - Internal prestressing
Page 34 and 35: 34 Phase 5 Repetition of previous o
Page 36 and 37: Phase 7 - External prestressing 36
Page 38 and 39: 38 Transversal truss stiffeners det
Page 40 and 41: 40 Hammers 1 and 3 Time steps Eleme
Page 42 and 43: 42 Bending moment diagrams during h
Page 54 and 55: 54 Bending moment diagrams: end of
Page 56 and 57: 56 Bending moment diagrams: permane
Page 58 and 59: 58 Bending moment diagrams: end of
Page 60 and 61: 60 Axial stress in concrete top sla
Page 62 and 63: 62 Axial stress in concrete bottom
Page 64 and 65: 64 Axial stress in steel top flange
Page 66 and 67: 66 Axial stress in steel bottom fla
Page 72 and 73: 72 Modeling of CORRUGATED WEBS
Page 74 and 75: An analytical method to calculate t
Page 78 and 79: Comparison of results between corru
Page 84 and 85: 84 Axial stress in steel top flange
Page 86 and 87: 86 Axial stress in steel bottom fla
Page 88 and 89: 88 Cumbering design Displacements w
Page 100 and 101: 100 Cumbering design Displacements
Page 124 and 125: Conclusions 124
Page 126 and 127:
126 Materials amount Flat webs Corr
Page 128 and 129:
128 Use of steel With corrugated we
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