Energy Dissipation and Local, Story, and Global Ductility Reduction Factors in Steel Frames under Vibrations Produced by Earthquakes

Table 5

Mean of µ_G, Q, R_µG, and Q_G parameters, 3- and 10-level buildings.

Parameter	3-level										10-level
	NS direction					EW direction					NS direction			EW direction
	Sa/g values					Sa/g values					Sa/g values			Sa/g values
	0.4	0.6	0.8	1.0	1.2	0.4	0.6	0.8	1.0	1.2	0.2	0.4	0.6	0.2	0.4	0.6
µG	1.61	2.04	2.79	3.25	3.95	1.55	2.05	2.70	3.05	3.89	1.86	2.92	4.11	1.66	2.67	3.60
Q	0.68	0.46	0.42	0.36	0.36	0.72	0.54	0.51	0.42	0.44	0.67	0.43	0.37	0.72	0.46	0.35
RµG	1.35	1.77	2.15	2.52	2.87	1.45	1.87	2.28	2.64	2.97	1.47	2.28	2.97	1.49	2.34	3.09
QG	0.84	0.87	0.77	0.78	0.73	0.94	0.91	0.84	0.87	0.76	0.79	0.78	0.72	0.90	0.88	0.86