Design an axially loaded short spiral column if it is subjected to axial dead load of 430 KN and axial live load of 980 KN. Use f’c = 27.6 MPa, fy = 414 MPa, ρ = 0.025 and 25 mm diameter main bars. Also, use 12 mm dia. ties with fyt = 276 MPa and clear concrete cover of 40 mm. Provide section drawing.

Design an axially loaded short spiral column if it is subjected to axial dead load of 430 KN and axial live load of 980 KN. Use f’c = 27.6 MPa, fy = 414 MPa, ρ = 0.025 and 25 mm diameter main bars. Also, use 12 mm dia. ties with fyt = 276 MPa and clear concrete cover of 40 mm. Provide section drawing.

Steel Design (Activate Learning with these NEW titles from Engineering!)

6th Edition

ISBN:9781337094740

Author:Segui, William T.

Publisher:Segui, William T.

Chapter9: Composite Construction

Section: Chapter Questions

Problem 9.2.1P: A W1422 acts compositely with a 4-inch-thick floor slab whose effective width b is 90 inches. The...

See similar textbooks

Similar questions

Compute the co-ordinates for (Pnb, Mnb) and (Pub, Mub) for rectangular columns using h=24in b=14in Effective cover =3in. Reinforcement consists of 4-#9 bars on each side (total of 8 bars) f'c=7000 psi fy=40000 psi. Use a yield strain of 0.004 for steel.
A W1422 acts compositely with a 4-inch-thick floor slab whose effective width b is 90 inches. The beams are spaced at 7 feet 6 inches, and the span length is 30 feet. The superimposed loads are as follows: construction load = 20 psf, partition load = 10 psf, weight of ceiling and light fixtures = 5 psf, and live load = 60 psf, A992 steel is used, and fc=4 ksi. Determine whether the flexural strength is adequate. a. Use LRFD. b. Use ASD.
A singly reinforced rectangular beam section 250 mm wide, 450 mm deep is reinforced with 2-28-mm-dia. rebars, grade G420 enclosed with 10-mm-dia. stirrups. What is the design condition of the beam by USD method? Use f'c = 21 MPa A. Transition Failure B. Balance Strain Failure C. Compression Controlled D. Tension Controlled
A column section b- 400 mem, h - 600 mm is reinforced with longitudinal bars Ast - 12-020 mm equally distributed along all faces. Lateral ties are composed of 12 me rectangular hoops with clear cover equal to 40 mm and 12 mm cross ties in both directions. Concrete yield strength f'c - 27 MPa and steel yield strength, fy - 415 MPa. Calculate the nominal axial strength of the column in kN. O 6,985 O 5,588 O 5,938 O 5,239
An axially loaded short square column is subjected to axial dead load of 600 KN and axial live load of 1200 KN. Use f’c = 27.6 MPa, fy = 414 MPa, ρ = 0.025 and25 mm diameter main bars. Also, use 12 mm dia. ties with fyh = 275 MPa and clear concrete cover of 40 mm. Determine the following: a. Required column dimension. b. Number of longitudinal reinforcement. Round off the answer into two decimal places
show fbd and complete solution using method of sections determine bar force members DF, DG, and EG.
h1 = 100 mm h2 = 500 mm B = 350 mm Tension steel, As = 6 of 28 mm diameter bars Compression steel, As’ = 4- 28 mm diameter bars Lateral ties = 12 mm diameter Clear concrete cover = 40 mm Concrete, f’c = 27 MPa Steel, fy (main bars) = 415 Mpa Steel, fyt (ties) = 275 Mpa 1. Determine the minimum spacing “a”, (mm)? (Use kN, use NSCP 2010 provision, the answer must be two (2) decimal places, and avoid rounding off when it's not a final answer) 2. Determine the nominal shear strength (kN) provided by the concrete? (Use kN, use NSCP 2010 provision, the answer must be two (2) decimal places, and avoid rounding off when it's not a final answer) 3. Determine the nominal shear strength if the lateral ties area is spaced at 125 mm on center? (Use kN, use NSCP 2010 provision, the answer must be two (2) decimal places, and avoid rounding off when it's not a final answer)
h1 = 100 mm h2 = 500 mm B = 350 mm Tension steel, As = 6 of 28 mm diameter bars Compression steel, As’ = 4- 28 mm diameter bars Lateral ties = 12 mm diameter Clear concrete cover = 40 mm Concrete, f’c = 27 MPa Steel, fy (main bars) = 415 Mpa Steel, fyt (ties) = 275 Mpa 1. Determine the minimum spacing “a”, (mm)? (Use kN, use NSCP 2010 provision, the answer must be two (2) decimal places, and avoid rounding off when it's not a final answer) 2. Determine the nominal shear strength (kN) provided by the concrete? (Use kN, use NSCP 2010 provision, the answer must be two (2) decimal places, and avoid rounding off when it's not a final answer) 3. Determine the nominal shear strength if the lateral ties area is spaced at 125 mm on center? (Use kN, use NSCP 2010 provision, the answer must be two (2) decimal places, and avoid rounding off when it's not a final answer)
-Q2.87-. A cantilever beam shown is reinforced with 6-28 mmø at the top and 2- 16 mmø at the bottom. Beam b xh = 400 mm x 470 mm. Tie diameter = 12 mmø spaced at 80 mm o.c. Clear concrete cover (from concrete surface to outer surface of ties) = 50 mm. f'c = 20.9 MPa and fy = 412 MPa. Assume bars are laid in single layer. Answer the following: (1) Compute the development length of the 28 mm bars at the top. Use formula in section 425.4.2.3. (2) Determine the development length of the 16 mm bottom bars. (3) Determine the development length if the bottom bars are 25 mm in diameter.
-Q2.88-, A cantilever beam shown is reinforced with 6- 28 mmø at the top and 3- 16 mmø at the bottom. Beam b x h = 410 mm x 470 mm. Tie diameter = 12 mmø spaced at 100 mm o.c. Clear concrete cover (from concrete surface to outer surface of ties) = 40 mm. f'c = 21.2 MPa and fy = 417 MPa. Assume bars are laid in single layer. Answer the following: (1) Compute the development length of the 28 mm bars at the top. Use formula in section 425.4.2.3. (2) Determine the development length of the 16 mm bottom bars. (3) Determine the development length if the bottom bars are 25 mm in diameter.
An axially loaded short spiral column is subjected to axial dead load of 620 KN and axial live load of 880 KN. Use f’c = 27.6 MPa, fy = 414 MPa, ρ = 0.025 and20 mm diameter main bars. Also, use 12 mm dia. ties with fyt = 276 MPa and clear concrete cover of 40 mm. Determine the following: a. Required diameter of the spiral column. b. Number of longitudinal reinforcement. c. Spacing of the spiral ties. Round off the answer into two decimal places
-Q2.23-. A cantilever beam shown is reinforced with 7- 25 mmø at the top and 4- 16 mmø at the bottom. Beam b xh = 380 mm x 480 mm. Tie diameter = 12 mmø spaced at 80 mm o.c. Clear concrete cover (from concrete surface to outer surface of ties) = 50 mm. f'c = 21.7 MPa and fy = 410 MPa. Assume bars are laid in single layer. Answer the following: (1) Compute the development length of the 25 mm bars at the top. Use formula in section 425.4.2.3. (2) Determine the development length of the 16 mm bottom bars. (3) Determine the development length if the bottom bars are 25 mm in diameter. Use the editor to format your answer Figures and formulas/tables for item #2 above. ... Ld1 Ld2