Multiple choice

The working stress method of design specifies the value of modular ratio, m = 280/ $(3\sigma_{cbc})$, where $\sigma_{cbc}$is the allowable stress in bending compression in concrete. To what extent does the above value of m make any allowance for the creep of concrete?

  1. No compensation

  2. Full compensation

  3. Partial compression

  4. The two are unrelated

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

 $m = \frac{280}{3 \sigma_{cbc}}$ takes into account of creep of concrete but not full extent, partially.