RAM Structural System Help

IS 800-07

For beams, imposed loads specified as reducible are reduced by "5% for each complete 50 m2 supported, but not more than 25% in all." No interpolation is performed for intermediate areas.

For columns, imposed loads specified as reducible are reduced per the requirements of Section 3.3.2. In the determination of number of floors, you may specify that only floors carrying reducible live load be included in that number by selecting Criteria > Live Load Reduction in the RAM Manager as explained previously.

Imposed loads specified as roof loads are reduced based on the slope of the roof in the vicinity of the member per IS 875 (Part 2) Section 4.1

No reduction is made on loads specified as Storage, Unreducible or Roof.

It is important to note that the output lists the reduction as a percent by which the load can be reduced, rather than as a load multiplier.