Seismic Evaluation and Retrofit of Reinforced Concrete Buildings with Masonry Infills Based on Material Strain Limit Approach

Table 8

Material strain level of the full RC-infilled frame.

Material strain level	Before retrofit				After retrofit
	Full RC-infilled frame-X		Full RC-infilled frame-Y		Full RC-infilled frame-X		Full RC-infilled frame-Y
	Displacement (mm)	Base shear (kN)	Displacement (mm)	Base shear (kN)	Displacement (mm)	Base shear (kN)	Displacement (mm)	Base shear (kN)
First yielding of steel	35.00	4688.56	35.00	4694.47	41.67	5282.78	33.33	4627.86
First crushing of unconfined concrete	81.67	6529.16	81.67	6527.23	83.33	7159.72	91.67	7738.15
First crushing of confined concrete	151.67	5254.25	151.67	5248.89	175.00	5917.69	175.00	6697.84