Design a baseplate for a W24 x 192 column carrying an axial load
of Pu =...
Design a baseplate for a W24 x 192 column carrying an axial load
of Pu = 2000k and bearing on a 8′ x 8′ concrete footing
with f′c = 3ksi (not in mm show work steps by step )
Given:
a. A 16 FT Column of A992 Steel.
b. Factored Axial Load (Pu) equal to 350 kips.
c. Weak Axis Fixities i. Rotation fixed and translation free at
the top. ii. Rotation fixed and translation fixed at the
bottom.
d. Strong-Axis Fixities i. Rotation free and translation free at
top. ii. Rotation fixed and translation fixed at bottom.
e. Limit Column Selections to Table 4-1 of AISC Steel Manual. f.
Show full Calculations are required for final validation.
1) Design a Tied column to support axial Dead load D = 280 K and
axial live load = 500 k, initially assume 2% longitudinal
reinforcement f’c = 4000 psi, fy = 60,000 psi.
2) Sketch the column cross-section and show long bars and
ties
Design a square tied column to support an axial dead
load of (W1) k and an axial live load of (W2) k.
Begin using approximately (X) percent longitudinal
steel, a concrete strength of 4,000 psi and Grade 60
steel.
Draw the details of reinforcement and
check all ACI recommendation.
W1 = 220 k
W2 = 165 k
X = 2%
Design a short square tied column to carry a factored axial load
of 1300k and a factored moment of 550kft. Place the reinforcement
uniformly around the column. Design the ties. Assume interior
exposure, f’c = 4000psi, fy = 60,000psi.
Prompt: Design the representative column for the factored axial
load only. Assume pin connections top and bottom. If you want, you
might consider designing for 75% of capacity, to allow for
remaining capacity for the lateral loads to be determined in the
future.
I'm Suppose to design a Concrete Column; many assumptions can be
made, such as type/strength of concrete. The calculated axial load:
Pu= 88.2 Kips
The column has dimension of 500 mm x 500 mm and carries an axial
load of 1210 KN dead load and 650 KN live load. Allowable soil
pressure is 240 Kpa. There is 0.7 m height of soil having a unit
weight of 15.74 KN/m3, fc’ = 20.7 Mpa, fy = 276.5 Mpa. The footing
section is 2.8 m x 2.8 m with a 600 mm thickness. Use 25 mm
diameter main bars.
A short reinforced concrete column is subjected to a
1000 kN axial compressive load. The moduli of elasticity of plain
concrete and steel are 25 GPa and 207 GPa, respectively, and the
cross-sectional area of steel is 2% of that of the reinforced
concrete. Considering the column as a structural member made of a
composite material and subjected to load parallel to the steel
rebars, calculate the following:
a. the modulus of elasticity
of the reinforced concrete
b. the load...
A short reinforced concrete column is subjected to a
1000 kN axial compressive load. The moduli of elasticity of plain
concrete and steel are 25 GPa and 207 GPa, respectively, and the
cross-sectional area of steel is 2% of that of the reinforced
concrete. Considering the column as a structural member made of a
composite material and subjected to load parallel to the steel
rebars, calculate the following:
a. the modulus of elasticity
of the reinforced concrete
b. the load...
3. Calculate the load carrying capacity and percentage
of reinforcement for a short rectangular column of
cross section dimension 280 mm x 500 mm is reinforced with 4 bars
of 25 mm diameter, 2 bars of 20
mm diameter and 2 bars of 12 mm diameter. Use M30 grade concrete
and Fe 500 grade steel. Also
design a 4 legged ties necessary for this section.
A 450 mm × 650 mm column supports factored axial load of 2500 kN
centered in single footing. After assuming the depth and density of
soil above footing, assume the required depth of footing [10
marks].
a) Check depth due to two-way shear
b) Check depth due to one-way shear action
c) Calculate the bending moment and steel reinforcement
e) Determine development length of dowels
d) Check bearing stress
e) Determine development length of dowels