Performance of Seismic Restrainer with SMA Springs for Sliding Isolation of Single-Layer Spherical Lattice Shells

Table 4

Control effect of peak axial force under seismic excitations scaled to 0.2 g amplitude (units in kN).

Beam number	El-Centro			Taft			Sylmar
	Controlled	Uncontrolled	β	Controlled	Uncontrolled	β	Controlled	Uncontrolled	β
1	5.11	6.68	0.235	6.64	7.56	0.122	9.76	11.41	0.145
2	5.03	6.57	0.234	6.65	7.90	0.158	9.65	11.43	0.156
3	3.62	4.22	0.142	3.43	4.58	0.251	2.84	3.23	0.121
4	3.59	4.28	0.161	3.50	4.52	0.226	2.69	3.28	0.180
5	9.92	13.38	0.259	8.36	10.45	0.200	9.34	10.82	0.137