A bucking analysis of the bridge section reveals that the vertical truss members can safely support a maximum of 525 kN in compression, the horizontal truss members can safely support a maximum of 310 kN in compression, and the diagonal truss members can safely support a maximum of 170 kN in compression. What is the largest value of L for which no safety requirement will be violated?
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A bucking analysis of the bridge section reveals that the
vertical truss members can safely support...
Spring 2019 Final Exam ENGR:2750:AAA Problem #1 (50 points) The members of the truss shown need to be designed so they can safely carry the loading shown. All truss members are made of steel for whic...
Spring 2019 Final Exam ENGR:2750:AAA Problem #1 (50 points) The members of the truss shown need to be designed so they can safely carry the loading shown. All truss members are made of steel for which Est 200 GPa. 10m Find the members having the largest internal compressive forces. All members in the truss are pin-connected at both ends. a) 10kN 10kN b) If a factor of safety against buckling having a value of 2 is required, calculate the require...
Problem 1 Analyze the truss structure (statically determinate) shown below. The diameter of the c...
Problem 1 Analyze the truss structure (statically determinate) shown below. The diameter of the circular truss members is 4 cm. The material used has an elastic modulus E-160GPa 1. Calculate the forces in each truss member. 2. Calculate the horizontal and vertical displacements 1 KN of the truss nodes B and C Calculate the margin of safety. Note: Tension members can fail by stress failure and compression members can fail by stress failure or buckling. 3. 1.732 m 2 KN...
Problem 1 Analyze the truss structure (statically determinate) shown below. The diameter of the c...
Problem 1 Analyze the truss structure (statically determinate) shown below. The diameter of the circular truss members is 4 cm. The material used has an elastic modulus E-160GPa 1. Calculate the forces in each truss member. 2. Calculate the horizontal and vertical displacements 1 KN of the truss nodes B and C Calculate the margin of safety. Note: Tension members can fail by stress failure and compression members can fail by stress failure or buckling. 3. 1.732 m 2 KN...
Question 2 (15 points): Tension, Compression and Zero-Force Members in a Truss Structure. Consider the truss...
Question 2 (15 points): Tension, Compression and Zero-Force Members in a Truss Structure. Consider the truss structure shown in Figure 2. 3P (kN) P (kN) I LI LL Figure 2: Elevation view of 27 bar truss structure. Vertical loads of 3P kN and P kN are applied at nodes B and D, respectively. [2a) (3 pts). Compute the magnitude and direction of the total support reactions at points A and C. [25] (3 pts). Identify the zero-force members (If you...
(a) Warren truss (b) Howe truss (c) Pratt truss (d) Baltimore truss (e) Parker truss Figure...
(a) Warren truss (b) Howe truss (c) Pratt truss (d) Baltimore truss (e) Parker truss Figure 2: Truss Types (Nielson Text) The truss bridge has the following properties/characteristics: 1. Span length (bottom chord): 168 ft 2. 14 panels (12 ft length per panel) 3. All diagonals are 45 degrees 4. Simple truss (all members are pin-connected and loads are only applied at the joints) 5. Simply-supported (pin at one end, roller at the other) 6. 13 ft width between trusses...
-2cm 4 vertical deflection a 1cm 16cm 20cm Lo E-2100000 kg/cm2 12cm 4.5m SECTION BC 03:...
-2cm 4 vertical deflection a 1cm 16cm 20cm Lo E-2100000 kg/cm2 12cm 4.5m SECTION BC 03: For the given column; Calculate the maximum compression force that can be beared safely 2 E 2100000 kg/cm2 Ash-105 → σ#3100-1 1.4λ[kg/cm2] 3.5m 12cm 2 2 13 I2EI 17cm SECTION AB Factor of safety, n=2 β (buckling factor) = 2 TTITT
A 3 m rigid bar AB is supported with a vertical translational spring at A and a pin at B The bar is subjected to a linearly varying distributed load with maximum intensity g Calculate the ver...
A 3 m rigid bar AB is supported with a vertical translational spring at A and a pin at B The bar is subjected to a linearly varying distributed load with maximum intensity g Calculate the vertical deformation of the spring if the spring constant is 700 kN/m. (ans: 21.43 mm) 2. A steel cable with a nominal diameter of 25 mm is used in a construction yard to lift a bridge section weighing 38 kN. The cable has an...
Spring 2019 Final Exam ENGR:2750:AAA Problem #1 (50 points) The members of the truss shown need to be designed so they can safely carry the loading shown. All truss members are made of steel for which Est 200 GPa. 10m Find the members having the largest internal compressive forces. All members in the truss are pin-connected at both ends. a) 10kN 10kN b) If a factor of safety against buckling having a value of 2 is required, calculate the require...
Problem 1 Analyze the truss structure (statically determinate) shown below. The diameter of the circular truss members is 4 cm. The material used has an elastic modulus E-160GPa 1. Calculate the forces in each truss member. 2. Calculate the horizontal and vertical displacements 1 KN of the truss nodes B and C Calculate the margin of safety. Note: Tension members can fail by stress failure and compression members can fail by stress failure or buckling. 3. 1.732 m 2 KN...
Problem 1 Analyze the truss structure (statically determinate) shown below. The diameter of the circular truss members is 4 cm. The material used has an elastic modulus E-160GPa 1. Calculate the forces in each truss member. 2. Calculate the horizontal and vertical displacements 1 KN of the truss nodes B and C Calculate the margin of safety. Note: Tension members can fail by stress failure and compression members can fail by stress failure or buckling. 3. 1.732 m 2 KN...
Question 2 (15 points): Tension, Compression and Zero-Force Members in a Truss Structure. Consider the truss structure shown in Figure 2. 3P (kN) P (kN) I LI LL Figure 2: Elevation view of 27 bar truss structure. Vertical loads of 3P kN and P kN are applied at nodes B and D, respectively. [2a) (3 pts). Compute the magnitude and direction of the total support reactions at points A and C. [25] (3 pts). Identify the zero-force members (If you...
(a) Warren truss (b) Howe truss (c) Pratt truss (d) Baltimore truss (e) Parker truss Figure 2: Truss Types (Nielson Text) The truss bridge has the following properties/characteristics: 1. Span length (bottom chord): 168 ft 2. 14 panels (12 ft length per panel) 3. All diagonals are 45 degrees 4. Simple truss (all members are pin-connected and loads are only applied at the joints) 5. Simply-supported (pin at one end, roller at the other) 6. 13 ft width between trusses...
-2cm 4 vertical deflection a 1cm 16cm 20cm Lo E-2100000 kg/cm2 12cm 4.5m SECTION BC 03: For the given column; Calculate the maximum compression force that can be beared safely 2 E 2100000 kg/cm2 Ash-105 → σ#3100-1 1.4λ[kg/cm2] 3.5m 12cm 2 2 13 I2EI 17cm SECTION AB Factor of safety, n=2 β (buckling factor) = 2 TTITT
A 3 m rigid bar AB is supported with a vertical translational spring at A and a pin at B The bar is subjected to a linearly varying distributed load with maximum intensity g Calculate the vertical deformation of the spring if the spring constant is 700 kN/m. (ans: 21.43 mm) 2. A steel cable with a nominal diameter of 25 mm is used in a construction yard to lift a bridge section weighing 38 kN. The cable has an...
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