Experimental Research on Seismic Performance of Masonry-Infilled RC Frames Retrofitted by Using Fabric-Reinforced Cementitious Matrix Under In-Plane Cyclic Loading

International Journal of Concrete Structures and Materials

Table 2 Summary of dissipated hysteretic energies and equivalent viscous damping coefficients

No. of half-cycles	Specimen No. 1		Specimen No. 2		Specimen No. 3		Specimen No. 4		Specimen No. 5
No. of half-cycles	E_i (KJ)	v_eq	E_i (KJ)	v_eq	E_i (KJ)	v_eq	E_i (KJ)	v_eq	E_i (KJ)	v_eq
1	0.060	0.026	0.241	0.059	0.218	0.042	0.228	0.067	0.174	0.038
2	0.089	0.056	0.249	0.056	0.230	0.039	0.224	0.054	0.240	0.047
3	1.058	0.051	1.510	0.084	1.666	0.067	1.355	0.078	1.710	0.079
4	0.962	0.052	1.429	0.070	1.857	0.083	1.325	0.071	1.847	0.085
5	2.179	0.082	1.883	0.070	2.675	0.092	1.703	0.071	2.435	0.081
6	1.811	0.061	2.186	0.090	2.244	0.067	1.689	0.056	2.339	0.076
7	3.338	0.098	3.611	0.099	4.166	0.080	2.846	0.089	4.388	0.090
8	3.332	0.088	3.031	0.089	4.120	0.081	3.388	0.089	4.123	0.084
9	4.175	0.075	4.790	0.093	6.293	0.091	3.467	0.072	7.084	0.094
10	3.486	0.077	4.268	0.080	5.390	0.073	3.931	0.069	5.856	0.080
11	4.783	0.064	5.724	0.089	5.962	0.079	4.721	0.074	8.278	0.097
12	5.322	0.095	5.667	0.083	6.468	0.078	4.813	0.090	7.168	0.075
13	–	–	6.078	0.091	5.685	0.073	–	–	6.527	0.089
14	–	–	5.413	0.080	6.098	0.079	–	–	7.429	0.077
15	–	–	6.878	0.095	7.643	0.077	–	–	6.866	0.106
16	–	–	–	–	–	–	–	–	8.599	0.105