SHAKE TABLE TEST OF MODEL STEEL SILO AND RESEARCH OF SILO WALL PRESSURE BY SOLIDS UNDER SEISMIC FORCES

The behavior of steel silo under seismic forces is different with regular structures. In this paper, through a shake table test of steel silo model, the sine wave, El Centro wave and Taft wave of different maximum accelerations were applied, and the dynamic strains and accelerations of measuring points on silo wall were obtained. According to test results, the stress mode of steel silo with solids was analyzed. Combined with the finite element model, the dynamic pressure of the solids on the silo wall during vibration was fitted. At the end, the distribution of solids pressure to silo wall under seismic action was researched and a simplified distribution for practical application was presented.