On the Seismic Response of Protected and Unprotected Middle-Rise Steel Frames in Far-Field and Near-Field Areas

Table 2

Reduction obtained in protected frames with respect to braced frames.

(a) LOMA_P1

Frames	Case  1	Case  2	Case  3	Case  4	Case  5	Case  6	Case  7	Case  8	Case  9	Case  10
Max. Ampl.; 5th level [%]	25.72	7.72	5.07	−23.63	5.97	40.75	−59.37	52.50	38.17	40.77
Max. base; shear [%]	3.98	5.10	28.42	−4.58	−60.89	28.33	−72.87	55.01	49.63	28.72

(b) LOMA_P2

Frames	Case  1	Case  2	Case  3	Case  4	Case  5	Case  6	Case  7	Case  8	Case  9	Case  10
Max. Ampl.; 5th level [%]	44.31	13.49	25.17	−3.27	13.12	1.05	−22.66	−1.40	14.51	0.69
Max. base; shear [%]	26.76	6.41	43.04	12.57	−19.57	3.42	−11.53	16.71	36.62	3.32