EUROCODE 2 WORKED EXAMPLES - Federbeton

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EC2 – worked examples 6-42 6.15.2 Structural model To evaluate the internal actions on the structure a linear FEM analysis has been performed adopting shell elements to represent the reinforced slab; this kind of element takes account of all the slab and plate components as well as the out-of-plane shear forces. The thickness of shell elements has been assumed constant for the inner zone of the slab and stepped to fashion the tapered extremity. In Fig 6.31 and 6.32 the FEM model is sketched and the different thick of the element is reported too. Table of Content Fig. 6.31 Transverse view of FEM model Fig. 6.32 Plan of FEM model and considered elements The adopted shell elements are oriented with the following guidelines: − local axis 2 is oriented as global axis Y of the deck; − local axis 3 is oriented in the opposite direction of global axis X of the deck; − local axis 1 is oriented as global axis Z of the deck. Positive forces for FEM program output are reported in Fig. 6.33:
EC2 – worked examples 6-43 Restraints Table of Content Fig. 6.33 Positive actions for FEM elements The external restraints have been introduced in the FEM model considering their real geometric dimensions; thus, few nodes have been restrained by means of spring elements in order to represent only an individual restraint or support. Fig. 6.34 shows a symbolic notation for the external restraints with the nodes involved. Fig. 6.34 External restraints on the FEM model The elastic constant of the spring restraining elements is calculated to have the same stiffness of the substructure (abutments or piers) on which the slab is rested. For the x and y directions, it may be assumed that the pier, or the abutment front wall, behaves like a
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EUROCODE 2 WORKED EXAMPLES
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Copyright: European Concrete Platfo
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Foreword to Commentary to Eurocode
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EC2 - worked examples summary EXAMP
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EC2 - worked examples 2-2 EXAMPLE 2
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EC2 - worked examples 2-4 EXAMPLE 2
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EC2 - worked examples 2-6 Set B (ve
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EC2 - worked examples 2-8 Table of
Page 20 and 21: EC2 - worked examples 2-10 Verifica
Page 22 and 23: EC2 - worked examples 2-12 Table 2.
Page 24 and 25: EC2 - Worked examples 4-2 Moreover:
Page 26 and 27: EC2 - Worked examples 4-4 EXAMPLE 4
Page 28 and 29: EC2 - Worked examples 4-6 We have:
Page 30 and 31: EC2 - worked examples 6-2 MRd3 must
Page 32 and 33: EC2 - worked examples 6-4 EXAMPLE 6
Page 34 and 35: EC2 - worked examples 6-6 Determina
Page 36 and 37: EC2 - worked examples 6-8 • VEd =
Page 38 and 39: EC2 - worked examples 6-10 EXAMPLE
Page 42 and 43: EC2 - worked examples 6-14 Taking d
Page 44 and 45: EC2 - worked examples 6-16 ⎛ fck
Page 48 and 49: EC2 - worked examples 6-20 Fig. 6.1
Page 50 and 51: EC2 - worked examples 6-22 Assumed
Page 54 and 55: EC2 - worked examples 6-26 (applied
Page 58 and 59: EC2 - worked examples 6-30 θ 11 =
Page 62 and 63: EC2 - worked examples 6-34 Identifi
Page 64 and 65: EC2 - worked examples 6-36 Loading
Page 72 and 73: EC2 - worked examples 6-44 single c
Page 74 and 75: EC2 - worked examples 6-46 Table of
Page 78 and 79: EC2 - worked examples 6-50 where φ
Page 82 and 83: EC2 - worked examples 6-54 6.15.3 C
Page 84 and 85: EC2 - worked examples 6-56 σ 22,b
Page 88 and 89: EC2 - worked examples 6-60 procedur
Page 92 and 93: EC2 - worked examples 6-64 n1 , n2
Page 96 and 97: EC2 - worked examples 7-2 and then
Page 98 and 99: EC2 - worked examples 7-4 y = 395mm
Page 100 and 101: EC2 - worked examples 7-6 A = 0.002
Page 102 and 103: EC2 - worked examples 7-8 EXAMPLE 7
Page 106 and 107: EC2 - worked examples 7-12 * * ⎡1
Page 108 and 109: EC2 - worked examples 7-14 σ s (2/
Page 110 and 111: EC2 - worked examples 7-16 0.1687
Page 114 and 115: EC2 - worked examples 7-20 1⎡ λ
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EC2 - worked examples 11-4 Table of
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EUROCODE 2 WORKED EXAMPLES - Federbeton

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