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From version < 3.1 >
edited by Fredrik Lagerström
on 2019/11/13 14:42
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edited by Fredrik Lagerström
on 2019/11/13 14:42
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5 5  (% class="wikigeneratedid" id="HShearcapacitywithshearreinforcement" %)
6 6  The design of members with shear reinforcement is based on a truss model (see figure below).
7 7  
8 -truss model
8 +[[image:shear 001.png]]
9 9  
10 - figure 3.3.6.
11 -
12 12  where
13 13  
14 14  α is the angle between shear reinforcement and the beam axis,
... ... @@ -15,11 +15,11 @@
15 15  
16 16  θ is the angle between the concrete compression strut and the beam axis perpendicular to the shear force,
17 17  
18 -Ftd is the design value of the tensile force in the longitudinal reinforcement,
16 +F,,td,, is the design value of the tensile force in the longitudinal reinforcement,
19 19  
20 -Fcd is the design value of the compression force in the direction of the longitudinal member axis,
18 +F,,cd,, is the design value of the compression force in the direction of the longitudinal member axis,
21 21  
22 -bw is the minimum width between tension and compression chords,
20 +b,,w,, is the minimum width between tension and compression chords,
23 23  
24 24  z is the inner lever arm. In shear analysis without axial force, the approximate value z = 0.9 d may normally be used.
25 25  
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PRE-Stress Documentation