模型钢筒仓的振动台试验及地震作用下储料对仓壁侧压力的研究  

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

作　　者：张翀 舒赣平[2] ZHANG Chong;SHU Ganping(Architects&Engineers Co.,Ltd.of Southeast University,Nanjing 210096,China;Department of Civil Engineering,Southeast University,Nanjing 210096,China)

机构地区：[1]东南大学建筑设计研究院有限公司,南京210096 [2]东南大学土木工程学院,南京210096

出　　处：《工业建筑》2020年第9期133-138,155,共7页Industrial Construction

摘　　要：钢筒仓在地震作用下的受力行为与常规结构有很大不同。通过一个模型钢筒仓的振动台试验,采用了正弦波、El Centro波和Taft波三种加速度曲线,对各种输入峰值加速度时的钢筒仓进行振动模拟,得到仓壁上各测点动态应变分布和加速度值。随后,根据试验结果分析储料和钢筒仓的受力模式,并结合有限元模型,拟合出了振动过程中储料对仓壁的动态侧压力。最后,对地震作用下储料对仓壁侧压力的分布形式进行了研究,得到一种便于实际工程应用的侧压力分布模式。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.

关 键 词：钢筒仓 振动台 地震作用 仓壁侧压力 

分 类 号：TU312.1[建筑科学—结构工程]