| 承重型3D板墙体抗震性能数值模拟 |
| |
| 引用本文： | 黄群艺,梁东,黄艳霞,芮奕.承重型3D板墙体抗震性能数值模拟[J].西南交通大学学报,2018,53(5):982-988. |
| |
| 作者姓名： | 黄群艺 梁东 黄艳霞 芮奕 |
| |
| 摘 要： | 为研究承重型3D板墙体的抗震性能，同时考虑单纯采用拟静力等抗震性能试验存在试验周期较长、成本较高等问题，采用有限元分析方法对承重型3D板墙体的抗震性能进行模拟计算，并将计算结果与试验结果进行对比，在验证数值模型准确合理的基础上，进一步分析高宽比、混凝土层厚度及强度对其抗震性能的影响，以此节约试验时间和成本. 研究结果表明:随着高宽比的增大，构件趋于弯曲破坏，有利于增加构件的延性及耗能能力. 增加混凝土层厚度对墙体极限承载力具有一定的提高作用，当单侧混凝土层厚度由30 mm增加至40、50 mm时，墙体极限承载能力由208 kN增加至253、279 kN；墙体的极限承载能力随着混凝土层强度的提高略有提升，当混凝土层强度由C25增加至C30、C35时，构件的极限承载力由236 kN增加至253、260 kN.
|
| 关 键 词： | 承重型3D板墙体 低周反复加载 抗震性能 影响因素 |
| 收稿时间： | 2017-07-12 |
Numerical Analysis on Seismic Performance of Load Bearing 3D Walls |
| |
| HUANG Qunyi,LIANG Dong,HUANG Yanxia,RUI Yi.Numerical Analysis on Seismic Performance of Load Bearing 3D Walls[J].Journal of Southwest Jiaotong University,2018,53(5):982-988. |
| |
| Authors: | HUANG Qunyi LIANG Dong HUANG Yanxia RUI Yi |
| |
| Abstract: | To investigate the seismic performance of load bearing 3D walls under low cyclic reversed loads, numerical analysis for load-displacement curves of load bearing 3D walls under low cyclic reversed loads are performed by using the solid model based on ABAQUS software. The simulation results agree well with the test results in literature. The influences of the height-width ratio, concrete thickness and concrete strength on the seismic performance of load bearing 3D walls under low cyclic reversed loads are analyzed. The analytical results indicate that height-width ratio is the major influence factors on the seismic performance of the walls. The flexural failure is more likely to observe in the wall with large aspect ratios, which increases the ductility and energy dissipation capacity of structure. When concrete layer thickness increased from 30 mm to 40 mm and 50 mm, the wall’s ultimate load-bearing capacity increased from 208 kN to 253 kN and 279 kN. Similarly, when the concrete layer strength increased from C25 to C30 and C35, the ultimate strength of the element accordingly increased from 236 kN to 253 kN and 260 kN. |
| |
| Keywords: | |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《西南交通大学学报》浏览原始摘要信息 |
|
点击此处可从《西南交通大学学报》下载全文 |
|
