【作者】 徐建国； 王露安； 徐一鸣； 王博；

【Author】 XU Jianguo;WANG Luan;XU Yiming;WANG Bo;Zhengzhou University;China Construction Eighth Bureau North China Branch;

【机构】 郑州大学； 中建八局华北公司；

【摘要】 为探讨双槽渡槽结构纵向碰撞响应问题,以南水北调中线工程老张庄双槽渡槽结构为研究背景,利用有限元软件ABAQUS建立双槽渡槽模型,并基于三维-摩擦碰撞理论,采用多尺度网格划分,分析不同参数下双槽渡槽碰撞响应规律。计算结果表明:碰撞可以产生巨大的冲击力;伸缩缝间距对结构碰撞有很大影响;不同场地类型地震波输入时表现有明显的频谱敏感性;随着地震波沿纵向输入角度的增大,碰撞响应减小;地震波加速度峰值和槽内水体的增加,均使碰撞响应逐渐增大。更多还原

【Abstract】 In order to study the longitudinal collision response of the double aqueduct structure,this paper takes Laozhangzhuang double aqueduct structure of the Middle Route Project of South to North Water Transfer as the research background,uses the finite element software ABAQUS to establish the double aqueduct model,and uses the multi-scale grid division based on the three-dimensional friction collision theory.The results show that:collision can produce huge impact force;the distance between expansion joints has a great influence on structural collision;different site types of seismic wave input show obvious spectrum sensitivity;with the increase of the longitudinal input angle of seismic wave,the collision response decreases;the peak acceleration of seismic wave and the increase of water body in the trough increases,the collision response gradually.更多还原