Example #1

01

Design Data

Concrete:

fc’ = 3,000 psi

Steel:

fy = 60,000 psi

Columns:

h = 17 in.,

b = 17 in.,

H = 12 ft

Assume 40% of the axial load is sustained.

Table 1 - Summary and Comparison Results of Example #1

Code

Equation

(EI)eff (kip-in.2)

ACI 318-19/14/11

6.6.4.4.4b

10,561,358

CSA A23.3-19/14/04

Eq. 10-19

10,561,358

AASHTO 9th

5.6.4.3-1

10,561,358

ACI 318-19/14/11

6.6.4.4.4a

6,208,431

CSA A23.3-19/14/04

Eq. 10-20

6,208,431

AASHTO 9th

5.6.4.3-2

6,208,431

ACI 318-19/14/11

6.6.4.4.4c

13,580,943*

13,580,943**

*

**

Pu = 525 kip, Mu,top = 105 kip-ft, Po = 1,311.45 kip

Pu = 525 kip, Mu,bottom = 0 kip-ft, Po = 1,311.45 kip