Two structural steel angles back to back are used as a compression member that is 4.5 m long. The angles are separated at intervals by spacer blocks and connected by bolts as shown in Figure Q4, a configuration which ensures that the double-angle shape acts as a unified structural member. Assume the pinned connections at each end of the column, and use E=200 GPa for the steel. A single angle has the following properties, A = 1600 mm, Ix = 1.64 x 106 mm4, Iy =0.787 x 106 mm4, x = 19.7. Determine the Euler buckling load for the double-angle column if the spacer block thickness is 5 mm (10 marks) 20 mm (10 marks)
Two structural steel angles back to back are used as a compression member that is 4.5 m long. The angles are separated at intervals by spacer blocks and connected by bolts as shown in Figure Q4, a configuration which ensures that the double-angle shape acts as a unified structural member. Assume the pinned connections at each end of the column, and use E=200 GPa for the steel. A single angle has the following properties, A = 1600 mm, Ix = 1.64 x 106 mm4, Iy =0.787 x 106 mm4, x = 19.7. Determine the Euler buckling load for the double-angle column if the spacer block thickness is 5 mm (10 marks) 20 mm (10 marks)
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Two structural steel angles back to back are used as a compression member that is 4.5 m long. The angles are separated at intervals by spacer blocks and connected by bolts as shown in Figure Q4, a configuration which ensures that the double-angle shape acts as a unified structural member. Assume the pinned connections at each end of the column, and use E=200 GPa for the steel. A single angle has the following properties, A = 1600 mm, Ix = 1.64 x 106 mm4, Iy =0.787 x 106 mm4, x = 19.7. Determine the Euler buckling load for the double-angle column if the spacer block thickness is
- 5 mm
(10 marks)
- 20 mm
(10 marks)
Transcribed Image Text:spacer block
76 mm
76 mm
spacer thickness
FIGURE Q4
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