Workshop_6_SOLUTION_Nov_12_09

Workshop_6_SOLUTION_Nov_12_09 - c '=4 ksi, f y =f yt...

Info iconThis preview shows pages 1–9. Sign up to view the full content.

View Full Document Right Arrow Icon
Name: _ SOLUTION _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ CE 441 Reinforced Concrete Design – Workshop 6 Thursday November 12, 2009 Due at the end of class a) Design a rectangular tied column with five reinforcement bars on each side as shown. The following service loads and moments are to be considered: P= 100 k DL + 80 k LL and M=50 k-ft DL + 90 k-ft LL. At the critical section for shear V= 10 k DL +30 k LL. The width of the column is set as b =14.0 in. Use the provided strength interaction diagrams from pages 1066 and 1067 of the text by Wight and MacGregor (copy included with this workshop) to obtain a design. Assume 3.0 inches from the center of longitudinal bars to surface of member as shown. Select the cross-section total depth h in full inch increments. Select the steel ratio to gross cross section ρ g in the range of 0.025 to 0.045 for your final design. Determine also the maximum tie spacing using #3 ties. f
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 2
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 4
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 6
Background image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 8
Background image of page 9
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: c '=4 ksi, f y =f yt =60ksi. b) Design a circular spiral column having symmetrical reinforcement to carry the same service loads and moments P= 100 k DL + 80 k LL and M=50 k-ft DL + 90 k-ft LL. At the critical section for shear V= 10 k DL +30 k LL. Use the provided strength interaction diagrams from pages 1075 and 1076 of the text by Wight and MacGregor (copy included with this workshop) to obtain a design. Assume 3.0 inches from the center of longitudinal bars to surface of member as shown. Select cross-section diameter in full inch increments. Select the steel ratio to gross cross section g in the range of 0.025 to 0.045 for your final design. Determine also the maximum spiral pitch (spacing of adjacent loops) for #3 spiral reinforcement. f c '=4 ksi, f y =f yt =60ksi. A Family of Design Interaction Diagrams from Wight and MacGregor: f c =4ksi, f y =60 ksi 11-12-2009...
View Full Document

Page1 / 9

Workshop_6_SOLUTION_Nov_12_09 - c '=4 ksi, f y =f yt...

This preview shows document pages 1 - 9. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online