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A wooden log is to be used as a footbridge to span 3.50-m gap. The log is required to support a concentrated load of 30 kN at midspan and a uniformly distributed load of 20 kN/m throughout the span. If the allowable stress in shear is 0.7 MPa. 1. What is the diameter of the log that would be needed? Assume the log is very nearly circular and the bending stresses are adequately met. Neglect the weight of the log. 2. If the log is to be trimmed to have a square cross section, what shall be the resulting dimensions (Round off to the nearest whole number). 3. Compute for the maximum flexural stress of the beam loading.

A wooden log is to be used as a footbridge to span 3.50-m gap. The log is required to support a concentrated load of 30 kN at midspan and a uniformly distributed load of 20 kN/m throughout the span. If the allowable stress in shear is 0.7 MPa. 1. What is the diameter of the log that would be needed? Assume the log is very nearly circular and the bending stresses are adequately met. Neglect the weight of the log. 2. If the log is to be trimmed to have a square cross section, what shall be the resulting dimensions (Round off to the nearest whole number). 3. Compute for the maximum flexural stress of the beam loading.

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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A wooden log is to be used as a footbridge to span 3.50-m gap. The log is required to support a concentrated load of 30 kN at midspan and a uniformly distributed load of 20 kN/m throughout the span. If the allowable stress in shear is 0.7 MPa. 1. What is the diameter of the log that would be needed? Assume the log is very nearly circular and the bending stresses are adequately met. Neglect the weight of the log. 2. If the log is to be trimmed to have a square cross section, what shall be the resulting dimensions (Round off to the nearest whole number). 3. Compute for the maximum flexural stress of the beam loading.
Transcribed Image Text:A wooden log is to be used as a footbridge to span 3.50-m gap. The log is required to support a concentrated load of 30 kN at midspan and a uniformly distributed load of 20 kN/m throughout the span. If the allowable stress in shear is 0.7 MPa. 1. What is the diameter of the log that would be needed? Assume the log is very nearly circular and the bending stresses are adequately met. Neglect the weight of the log. 2. If the log is to be trimmed to have a square cross section, what shall be the resulting dimensions (Round off to the nearest whole number). 3. Compute for the maximum flexural stress of the beam loading.
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