A substructure shaking table testing(SSTT)method using a modified Chen-Ricles(CR)integration algorithm for the multi-story shear-type structure was proposed.The velocity and displacement formulations of the CR algorithm were retained in the modified algorithm,while a stability adjustment factor was introduced to calculate the integration parameters.In addition,dynamic condensation technique was used to take the contribution of the experimental substructure into consideration.Finally,stability analyses of th...