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| 基于SIMULINK的高填方加筋路堤地震反应分析 | |
| 引用本文： | 蒋建清,杨果林,李丽民. 基于SIMULINK的高填方加筋路堤地震反应分析[J]. 中南大学学报(自然科学版), 2011, 42(1) |
| 作者姓名： | 蒋建清 杨果林 李丽民 |
| 作者单位： | 1. 湖南城市学院,土木工程学院,湖南,益阳,413000;中南大学,土木建筑学院,湖南,长沙,410075 2. 中南大学,土木建筑学院,湖南,长沙,410075 3. 湖南城市学院,土木工程学院,湖南,益阳,413000 |
| 基金项目： | 湖南省教育厅科研项目(08C199) |
| 摘 要： | 为研究高填方加筋路堤的地震反应,将其简化为一个多质点体系,考虑加筋对路堤抗侧刚度的影响及筋材与土体间的摩擦力,推导水平地震作用下加筋路堤的动力方程,然后,将动力方程所代表的动力学系统用状态空间法予以描述,根据其状态方程在SIMULINK环境下建立仿真分析模型,从而求解动力方程,获得高填方加筋路堤的地震反应结果。并将此仿真模型运用于分析某一铁路路基加筋土挡墙的地震反应,分析结果与FLAC2D计算值进行对比。研究结果表明:该方法简单实用,求解精度较高,模型中的力学参数可以通过常规土工试验获得,可应用于实际工程地震反应预测;加筋对水平地震作用下堤顶加速度放大作用有明显的抑制效果;加筋后路堤水平地震位移明显减小。 |
| 关 键 词： | 加筋土 路堤 地震 SIMULINK 仿真 动力方程 |
Seismic response of high-filled reinforced embankment based on SIMULINK |
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| JIANG Jian-qing,YANG Guo-lin,LI Li-min. Seismic response of high-filled reinforced embankment based on SIMULINK[J]. Journal of Central South University:Science and Technology, 2011, 42(1) | |
| Authors: | JIANG Jian-qing YANG Guo-lin LI Li-min |
| Affiliation: | JIANG Jian-qing1,2,YANG Guo-lin2,LI Li-min1 (1.School of Civil Engineering,Hunan City University,Yiyang 413000,China,2.School of Civil Engineering and Architecture,Central South University,Changsha 410075,China) |
| Abstract: | In order to study seismic response of high-filled reinforced embankment,the embankment was simplified as a multi-mass system,and its dynamic equation under horizontal seismic was deduced considering the effects of reinforcements on soil lateral stiffness and reinforcement-soil friction.The dynamic system represented by the dynamic equation was expressed using the state space method.According to the state equation,a numerical simulation model was established using SIMULINK so that the dynamic response can be... |
| Keywords: | reinforced soil embankment seismic SIMULINK simulation dynamic equation |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |