This question was previously asked in

MPPSC AE CE 2014 Official Paper - II

Option 4 : 1.40

**Concept:**

**\(Load\;factor = {{Shape \;Factor \;\times \;Factor \;of \;Safety}}\)**

\(Factor \;of\;Saftey={{Yield \;Stress}\over{Allowable\;Stress}}\)

**Given:**

Shape Factor = 1.12

Factor of Safety = 1.5

Increase in allowable stress = 20%

New Allowable stress = 1.2 \(\times\) Allowable stress

**Calculations:**

**\(New\;Factor \;of\;Saftey={{Yield \;Stress}\over{New\;Allowable\;Stress}}\)**

\(New\;Factor \;of\;Saftey={{Yield \;Stress}\over{1.2\times\;Allowable\;Stress}}\)

\(New\;Factor \;of\;Saftey={FOS\over1.2}\)

\(Load\;factor = {{Shape \;Factor \;\times New\;Factor \;of \;Safety}}\)

\(Load\;factor = {{1.12 \;\times {1.5\over1.2}}}\)

\(Load\;factor = \frac{{1.12 \times 1.5}}{{1.2}} = 1.4\)

ST 22: Geotechnical Engineering

1998

20 Questions
20 Marks
15 Mins