RC

RC Column Design — CSA A23.3-24

Tied rectangular & spiral circular · P–M interaction · slenderness · biaxial · shear

SI: MPa, mm, kN

1. Project

2. Column Type

3. Geometry

160000

4. Materials

200 000

5. Longitudinal & Ties

6. Factored Loads

7. Framing

8. Service Loads

Section
400×400 mm — 8-25M long. — 10M ties @ 300 mm
Design Summary — C-1
Example Project
7/12 checks pass
FAIL
CheckValueLimitStatusCSA Cl.
Reinforcement ratio ρg2.50 %1.00 – 8.00 %
PASS
10.9.1/2
n_top, n_bot ≥ 23, 3≥ 2
PASS
10.9.3
P_f ≤ Pr,max2000 / 3047 kN
PASS
10.10.4
Slenderness xkl/r = 29.2 vs 20.0Short if ≤ limit
WARN
10.15.2
Slenderness ykl/r = 29.2 vs 20.0Short if ≤ limit
WARN
10.15.2
Stability x (Pf < 0.75·Pc)2000 / 7943 kN
PASS
10.15.3
Biaxial — Bresler reciprocalPf/Pr = 1.204≤ 1.00
FAIL
10.14 / CAC
Biaxial — load contour Σ1.524≤ 1.00 (αn = 1.5)
FAIL
10.14
Shear x (Vf ≤ Vr)80 / 181 kNVr,max = 607
PASS
11.3
Shear y (Vf ≤ Vr)60 / 181 kNVr,max = 607
PASS
11.3
Tie spacing300 mm≤ 400 mm
PASS
7.6.5.2
Service deflection (mid-height)14.7 mm≤ L/500 = 7.0 mm
WARN
9.8 (P–Δ)