Beams: 11b The 140 cm long beam is simply supported and loaded by a concentrated moment at mid-span as shown. The beam is built-up by gluing together 4 beams, each

of20×10 cm cross section, as shown.(a) find the maximum tensile bending stress o, in the beam; (b) find the maximum shear stress Txy.

Fig: 1

Fig: 2