Q4. A timber beam, with section dimensions as shown in the figure Q4 below, is simply supported over a span of 4.5 m and carries a UDL (inclusive of its own weight) of 25.9 kN/m. Determine: (a) the maximum shear force in the beam, (b) the average shear stress at the location of the largest shear force, (c) the maximum shear stress at section a-a, and (d) comment on the difference in the values of the stresses. b1 (mm)=100 b2 (mm)=150 d1 (mm)=150 d2 (mm)=150 b2 Figure Q4 zp

Structural Analysis
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Q4. A timber beam, with section dimensions as shown in the figure Q4 below, is simply supported
over a span of 4.5 m and carries a UDL (inclusive of its own weight) of 25.9 kN/m. Determine:
(a) the maximum shear force in the beam,
(b) the average shear stress at the location of the largest shear force,
(c) the maximum shear stress at section a-a, and
(d) comment on the difference in the values of the stresses.
bị
b1 (mm)=100
b2 (mm)=150
d1 (mm)=150
d2 (mm)=150
bz
Figure Q4
Ip
Transcribed Image Text:Q4. A timber beam, with section dimensions as shown in the figure Q4 below, is simply supported over a span of 4.5 m and carries a UDL (inclusive of its own weight) of 25.9 kN/m. Determine: (a) the maximum shear force in the beam, (b) the average shear stress at the location of the largest shear force, (c) the maximum shear stress at section a-a, and (d) comment on the difference in the values of the stresses. bị b1 (mm)=100 b2 (mm)=150 d1 (mm)=150 d2 (mm)=150 bz Figure Q4 Ip
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