A 400mmx500mm beam carries a total factored load of 55kN/m uniformly distributed over its 7.30m span, in addition the beam will be subjected to a uniformly distributed torsion of 7.40 kN-m/m at factored loads. Closed stirrup steel (10mm) will be used to provide for flexural shear and torsion. Use a clear cover of 40mm and diameter of longitudinal bars to be 25mm. Assume fc’=28MPa, fy=420MPa and fyt=280MPa. A.) Determine the threshold torsion, kN-m. B.) Determine the calculated spacing of stirrups for torsion, mm? C.) Calculate the value of the longitudinal steel area required by torsion, mm2
A 400mmx500mm beam carries a total factored load of 55kN/m uniformly distributed over its 7.30m span, in addition the beam will be subjected to a uniformly distributed torsion of 7.40 kN-m/m at factored loads. Closed stirrup steel (10mm) will be used to provide for flexural shear and torsion. Use a clear cover of 40mm and diameter of longitudinal bars to be 25mm. Assume fc’=28MPa, fy=420MPa and fyt=280MPa. A.) Determine the threshold torsion, kN-m. B.) Determine the calculated spacing of stirrups for torsion, mm? C.) Calculate the value of the longitudinal steel area required by torsion, mm2
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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A 400mmx500mm beam carries a total factored load of 55kN/m uniformly distributed over its 7.30m span, in addition the beam will be subjected to a uniformly distributed torsion of 7.40 kN-m/m at factored loads. Closed stirrup steel (10mm) will be used to provide for flexural shear and torsion. Use a clear cover of 40mm and diameter of longitudinal bars to be 25mm. Assume fc’=28MPa, fy=420MPa and fyt=280MPa.
A.) Determine the threshold torsion, kN-m.
B.) Determine the calculated spacing of stirrups for torsion, mm?
C.) Calculate the value of the longitudinal steel area required by torsion, mm2
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