For an i- beam shape factor is 1.12. The factor of safety in bending is 1.5. If the allowable stress is increased by 20% wind and earthquake loads then the load factor is

For an i- beam shape factor is 1.12. The factor of safety in bending i

1.	For an i- beam shape factor is 1.12. The factor of safety in bending is 1.5. If the allowable stress is increased by 20% wind and earthquake loads then the load factor is
Answer» Answer is 1.40 EXPLANATION:The FACTOR of SAFETY is given as F1 =YIELD stress/Allowable stress=1.5When the allowable stress is increased by 20%, then factor of safety will be F2=Yield stress/ 1.2×Allowable stress⇒ F2=1/1.2×Yield stress/ Allowable stress⇒ F2=1/1.2×1.5 1.25Load factor = Shape factor × Factor of safety= 1.12 × F2 = 1.12 × 1.25= 1.40

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For an i- beam shape factor is 1.12. The factor of safety in bending is 1.5. If the allowable stress is increased by 20% wind and earthquake loads then the load factor is

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