Sαbbαgh Cɸncrete-Columns

Slide 1

Rectangular Column

Column shop drawing
Slide 2

Circular Column

Column shop drawing
Slide 3

Linear Section Column

Linear Column shop drawing
Slide 4

Column Table

Column Table
Slide 5

Interaction surface

Interaction surface
Slide 6

Column Resistance

Column Resistance
Slide 7

Shear Short Column

Shear short column
Slide 8

(6/5) Beam/Column Capacity Ratio in SMFR

6/5 SMRF Joint
Slide 9

Shear Joints

Shear Joint
Slide 10

Columns Reinforcement Table

Columns Reinforcement Table
Slide 11

Quantities

Coumn Quantities
Slide 12

Column bending schedule

Column bending schedule
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What can you do with Sabbagh Concrete-Columns?

1- Shop drawing :

  • (Rectangular – Circular) Cross section.
  • Linear section.
  • Table of cross sections.
  • Flexible drawing for stirrups, hoops, ties, and crossties.
  • Easy control of the basis of shop drawing criteria.

2- Quanities :

  • Concrete.
  • Rebar.
  • Insulation area.

3- Drawing column Reinforcement Table.

4- Bending schedule.

5- Structural Conditions check :

  • ACI 318 code requirements.
  • Reinforcement ratio.
  • hx : maximum center-to-center spacing of longitudinal bars laterally.
  • Clear distance between bars.
  • Interaction surface.
  • Shear in short columns.
  • Shear Joints.
  • (6/5) Beam/Column Capacity Ratio in SMFR.

6- Compatibility with ETABS/SAFE :

  • Import column sections from ETABS.
  • Export column sections to ETABS.
  • Import all columns from ETABS (Create cross sections and linear sections)

7- Soft features :

  • Saving data.
  • Imperial units / Metric units.
  • Rebar tags are changeable, it can adapt to the requirements of all countries.
  • Dynamic screen, changeable dimensions from the drawing area.
  • Easily change a parameter for a group of elements.

Reinforcement Ratio :

\[µs = {∑As \over Ag}\]

As : area of nonprestressed longitudinal reinforcement.

Ag : gross area of concrete section.

Stirrups conditions :

hx : maximum center-to-center spacing of longitudinal bars laterally supported by corners of crossties or hoop legs around the perimeter of a column or wall boundary element.

Shear in short columns :

\[Mn = {As * fy \space(d-{y\over2})} \space\space\space\space ; \space\space\space\space\space\space y = {As * fy \over 0.85 * fc’ * b}\]
\[V = {2 * Mn \over lu}\]
\[ζ = {V \over 0.75 * b * d} ≤ ζ,max = {0.65 * \sqrt{fc’}} \]
\[Av/s ≥ {ζ * b \over fyt}\]

Mn : nominal flexural strength at section.

V : design shear force for load combinations including earthquake effects.

ζ : shear stress.

lu : unsupported length of column.

b : width of compression face of member.

d : distance from extreme compression fiber to centroid of longitudinal tension reinforcement.

fc’ : specified compressive strength of concrete.

fy : specified yield strength for nonprestressed reinforcement.

fyt : specified yield strength of transverse reinforcement.

Av : area of shear reinforcement within spacing s.

s : center-to-center spacing of transverse reinforcement.

Shear Joints :

Vuj  ≤  (Φ =0.85) * Vnj

Vuj = Tb1 + Cb2 – Vcol

Tb1 = Cb1 = α . As1 . fy

Tb2 = Cb2 = α . As2 . fy

\[Vcol = {α * (Mb1+Mb2) \over lu}\]

(6/5) Beam/Column Capacity Ratio in SMFR :

\[R = {ΣMc \over ΣMb} = {Mc1+Mc2 \over Mb1+Mb2} ≥ (1.2 →1.4) \]
\[Mn = {As * fy \space(d-{y\over2})} \space\space ; \space\space y = {As * fy \over 0.85 * fc’ * b}\]

Youtube Tutorial :

Video 1 – Columns-Cross Section

Video 2 – Columns-Linear Section

Video 3 – Columns-Quick enter, Columns Shear, SMRF Joints

Video 4 – ETABS-Import Beams and Columns from ETABS

Video 5 – Quantities, Reinforcement Tables, Bending Schedule