Calculation method of lateral restraint effects for one-storey & multiple-span prestressed concrete frame;

Compute method of estimate the response critical state of the close-type sprinkler under the roof without sideward-wall;

Crushing and fractal behaviors of quartz sand-gravel particles under confined compression;

Deformation field analysis of cohesive soil in process of confined compression by the technique of DPDM

A confined compression test and a direct shear test were used to investigate the crushing behavior of quartz coarse sand and fine gravel particles under different compressive stress,and measure the breakage by B_(15),B_(6o),B_g andB_r.

Analysis of lateral restraint effects for multistory and high-rise prestressed concrete frame;

By use of the calculating variation regulation of confining pressure from the dilation model,the constitutive model of axial compression of active confinement concrete columns and the failure criterion of concrete under multi-axial stress,the theoretical expression of stress-strain relationships of axial compression for the passive confinement concrete columns is derived.