The experiments,calculations and anal-ysis made by the experts and researchers of Tongji University?Hunan University and Harbin Uni-versity of Civil Engineering and Architecture indicated that some problems must be solved through research es and seismic analysis software of masonry structures must be developed,and therefore,floor equivalent shear models are used to set.

Based on the deformation and bearing characteristic of masonry-RC wall composite structures,the storey shearing equivalent model of the masonry wall is introduced by comparing with two-element model.

Based on the characteristics of the pseudo-dynamic testing and taking into account the permissible system accuracy, this paper introduces the concept of equivalent shear stiffness, and proposes the high order single-step algorithm of pse.

It expatiates the physical significance of double parameters in dividing building place classification,commentates present problems in dividing building place classification,indicates that soil layer equivalent cutting wave speed can not be used to divide the style of place soil,also can not use soil layer equivalent cutting wave speed value to average place.

A method to determine the effective shear modulus under shock loading conditions by using longitudinal and bulk sound velocities along the quasi-elastic release was introduced in present paper.