Question

Answers:

I_XX = 54.47×10⁶ mm⁴

Z_top = 722826 mm³

Z _bottom = 242474 mm³

M_{max hog} = – 90.00×10⁶ Nmm

M_{max sag} = + 51.42×10⁶ Nmm

9. Calculate Ixx for the T-section shown in Fig. Q9a. From this, calculate the elastic section modulus for the top and the bottom of the section. This section is loaded as shown in Fig. Q9b. Calculate the maximum hogging and sagging moment in the beam and plot the stress distribution through the depth of the beam for both sections. Assess where the beam is likely to fail if the design stress of the steel is 309 N/mm2. 230mm 15mm ㄨㄧㄧ x 285mm 10mm Fig. Q9a 30kN 60kN 30kN 2m 3m 2m 3m Fig. Q9b

Answer 1

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