For the Pratt bridge truss and loading shown, determine the factors of safety of the members BC & BE if the maximum allowable stresses are 100 MPa in tension & 120 MPa in compression. (Choose all correct answers) * 3.6 m E m--2.7 m- -2.7 m-2.7 m- 350 kN 350 kN 350 kN BC = 2.10 BE = 1.70 BE = 1.30 BC = 1.70 BC = 1.30 BE = 2.10 BC = 1.10 BE = 1.10
For the Pratt bridge truss and loading shown, determine the factors of safety of the members BC & BE if the maximum allowable stresses are 100 MPa in tension & 120 MPa in compression. (Choose all correct answers) * 3.6 m E m--2.7 m- -2.7 m-2.7 m- 350 kN 350 kN 350 kN BC = 2.10 BE = 1.70 BE = 1.30 BC = 1.70 BC = 1.30 BE = 2.10 BC = 1.10 BE = 1.10
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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full solutions with units, factor of safety and fbd
The cross-sectional area of those members is 3780 mm^2
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Transcribed Image Text:For the Pratt bridge truss and loading shown, determine the factors of safety of
the members BC & BE if the maximum allowable stresses are 100 MPa in tension
& 120 MPa in compression. (Choose all correct answers) *
3.6 m
H.
E
|-27m--
n-2.7 m--2.7 m-2.7m-
350 kN
350 kN
350 kN
BC = 2.10
BE = 1.70
BE = 1.30
BC = 1.70
BC = 1.30
BE = 2.10
BC = 1.10
BE = 1.10
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