Damping Modification in Other Codes Sample Clauses

Damping Modification in Other Codes. There are very few codes for which a damping modification factor, of the sort given in Eurocode, is made explicit. For all the codes the “standard” seismic input is given for 5 % critical damping. The NEHRP Provisions define damping modification for the design displacement separately for seismically isolated structures and structures with damping devices. Modification parameters (B) are given for fixed levels of damping, expressed as a percentage of critical damping, where: Sd T ,   B Sd T ,5%