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Maximum torsional moment resisted by concrete struts
^Rd2
Maximum torsional moment resisted by reinforcement
7gd Design value of applied torsional moment
^"sdfl Torsional moment applied to flange
TSdtot Total applied torsional moment
TSdw Torsional moment applied to web
VA Shear force at support A
VB Shear force at support B
l/cd Design shear resistance provided by concrete
Vex) Shear force at exterior support l/nt Shear force at interior support
VRdl Design shear resistance of member without shear reinforcement
VRd2 Maximum design shear force to avoid crushing of notional concrete struts
VRd3 Design shear resistance of member with shear reinforcement
VSd Design value of applied shear force
VSdx Design shear force in x direction
VSd Design shear force in y direction
VSd max Maximum design shear force
Vwd Design shear resistance provided by shear reinforcement
Wb Section modulus at bottom fibre
W Section modulus at centroid of tendons cp
Wk Characteristic value of wind load
Wx Section modulus at top fibre a Distance or deflection or maximum drape of tendon profile a1 Deflection based on uncracked section an Deflection based on cracked section a Distance of load from face of support (corbel) or from centreline of hanger bars (nib)
acs Deflection due to concrete shrinkage ax Distance from face of support to effective centre of bearing a; Horizontal displacement of the envelope line of tensile force atot Total deflection av Distance between positions of zero and maximum bending ax Deflection at distance x along span ava2 Values of a. at ends of span b Width of section or flange width or lateral cover in plane of lap bav Average width of trapezoidal compression zone be Width of effective moment transfer strip
/be)f Effective width of flange
^mm Minimum width of support beam br Width of rib b Width of support

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