Correct Answer - Option 1 :
\(\frac{1}{325}\)
Concepts:
At the caps of columns in single storey buildings, the horizontal deflection due to lateral force should not ordinarily exceed 1/325 of the actual length ‘l’ of the column. This limit may be exceeded in cases where the grater deflection would not impair the strength and efficiency of the structure or lead to damage to finishing
Additional Information:
1. Generally, the maximum deflection for a beam shall not exceed 1/325 of the span.
2. For simple storey buildings, the maximum permissible lateral deflection due to wind load in Steel Columns, as per IS 800:2007, Cl 5.6.1, is H/300 if supported by elastic cladding and is H/500, if supported by brittle cladding, where H is the height of building.
3. As per IS 456: 2000, the defection in any RCC slabs and beams is limited as follow:
1. The final deflection due to all loads including effects of temperatures, creep and shrinkage and measured from the as cast level of the support of floors, should not normally exceed L/250 (L is effective span).
2. The deflection due to effect of temperature, creep and shrinkage after erection of partitions and the applications of finishes should not normally exceed L/350 or 20 mm whichever is less.(L is effective span).
