振动台试验新型叠层剪切模型箱的改进与性能测试#br#

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振动与冲击 ›› 2021, Vol. 40 ›› Issue (21) : 82-89.

论文

刘春晓1,2，陶连金1，边金3，安军海4，冯锦华5，张宇1，代希彤6，王兆卿7

作者信息 +

Improvement of new laminated shear model box and verification tests

LIU Chunxiao1,2, TAO Lianjin1, BIAN Jin3, AN Junhai4, FENG Jinhua5, ZHANG Yu1, DAI Xitong6, WANG Zhaoqing7

Author information +

文章历史 +

摘要

对课题组自主研发的可调节弹簧和阻尼装置的层状剪切模型箱进行改进，并进行了试验验证。其整体改进思路是：用平面直线滚针排取代滚珠，提高其层状剪切模型箱剪切变形的能力；在非主振方向添加竖向弹簧，优化其动力边界条件。试验和分析结果表明：相比于原始工况，改进后的层状剪切模型箱可以产生较大相对位移，起到了很好的模拟剪切大变形的效果；左右竖向弹簧的补充增大了模型箱位移的连贯性，使之更加接近真实土体变形反应。

Abstract

The layered shear model box of adjustable spring and damping device independently developed by our research group is improved and verified by experiments. The overall improvement idea is to use the plane linear needle roller row to replace the ball to improve the shear deformation ability of the layered shear model box, and to add the vertical spring in the non-main vibration direction to optimize its dynamic boundary conditions. The test and analysis results show that: compared with the original working condition, the improved laminar shear model box can produce larger relative displacement and play a good effect of simulating large shear deformation; the supplement of left and right vertical springs increases the coherence of model box displacement and makes it closer to the real soil deformation response.

导出引用

刘春晓1,2，陶连金1，边金3，安军海4，冯锦华5，张宇1，代希彤6，王兆卿7. 振动台试验新型叠层剪切模型箱的改进与性能测试#br#[J]. 振动与冲击, 2021, 40(21): 82-89

LIU Chunxiao1,2, TAO Lianjin1, BIAN Jin3, AN Junhai4, FENG Jinhua5, ZHANG Yu1, DAI Xitong6, WANG Zhaoqing7. Improvement of new laminated shear model box and verification tests[J]. Journal of Vibration and Shock, 2021, 40(21): 82-89

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