Timber 300mm by 300mm spaced 0.90m apart on centers are driven into the ground and act as a cantilever beams to back up the sheet piling of a cofferdam. 1. Which if the following gives the maximum height (m) of water behind the dam if the bending stress is limited to 8MPa 2. Which of the following gives the maximum height (mm) of water behind the dam if the shearing stress is limited to 0.8 MPa 3. Which of the following gives the maximum spacing of the beams if the height of water is 4m so as not to exceed the allowable bending stress.
Timber 300mm by 300mm spaced 0.90m apart on centers are driven into the ground and act as a cantilever beams to back up the sheet piling of a cofferdam. 1. Which if the following gives the maximum height (m) of water behind the dam if the bending stress is limited to 8MPa 2. Which of the following gives the maximum height (mm) of water behind the dam if the shearing stress is limited to 0.8 MPa 3. Which of the following gives the maximum spacing of the beams if the height of water is 4m so as not to exceed the allowable bending stress.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Timber 300mm by 300mm spaced 0.90m apart on centers are driven into the ground and act as a cantilever beams to back up the sheet piling of a cofferdam.
1. Which if the following gives the maximum height (m) of water behind the dam if the bending stress is limited to 8MPa
2. Which of the following gives the maximum height (mm) of water behind the dam if the shearing stress is limited to 0.8 MPa
3. Which of the following gives the maximum spacing of the beams if the height of water is 4m so as not to exceed the allowable bending stress.
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