| 实体有限元模拟预制节段桥墩循环荷载分析 |
| |
| 引用本文： | 张博弢.实体有限元模拟预制节段桥墩循环荷载分析[J].石家庄铁道学院学报,2010,23(3):48-52. |
| |
| 作者姓名： | 张博弢 |
| |
| 作者单位： | 石家庄铁道大学,土木工程学院,河北,石家庄,050043 |
| |
| 摘 要： | 采用实体有限单元法模拟无粘结预应力、普通箍筋约束预制拼装桥墩在循环荷载下的力学反应，得到其荷栽位移滞回曲线。为了提高预制拼装桥墩的滞回性能，改进模型，使用贯穿节段接触面的普通纵向钢筋作为能量耗散装置增强耗能能力。改进后的模型残余变形小，滞回性能高。
|
| 关 键 词： | 实体有限单元法 无粘结预应力 普通箍筋约束预制拼装桥墩 能量耗散装置 |
Finite Element Simulations of Cyclic Loading Response of Precast Segmental Columns |
| |
| Institution: | Gao Xiukun, Li Xingzhao ( 1. Department of Civil Engineering, Tongji University, Shanghai 200092,China; 2. Department of Civil Engineering and Architecture, Henan University of Technology, Zhengzhou 450052, China) |
| |
| Abstract: | A simple outline of the present sliding friction is made, and the discrete method is introduced into the study to discuss the relation of sliding friction coefficient and some important factors, such as contact pressure, surface roughness and relative sliding velocity. Finally the results of numerical simulation are compared with the classical friction theory, and also some suggestions are proposed on further relative studies. |
| |
| Keywords: | discrete method friction coefficient relative sliding velocity contact pressure |
| 本文献已被 维普 万方数据 等数据库收录！ |
|
