22-23
Extracted text: 22. Calculate the maximum shearing stress (MPa) in the post. A. 0.81 В. 1.35 C. 0.54 D. 1.08 23. If the allowable bending stress of the wood is 12.6 MPa, which of the following gives the maximum allowable spacing (mm) of the post? A. 400 В. 500 С. 600 D. 700
Extracted text: Situation - A temporary retaining wall is supported by timber post as shown. The post can be considered fixed at the bottom. The soil exerts a pressure on the wall that varies uniformly from 0 kPa at the top to 15 kPa at the bottom. Given: Dimension, b x d = 100 mm x 200 mm Spacing of post = 800 mm Height, H = 2.4 m -Timber Timber post post H Soil- Sol