| 鱼腹式钢箱梁正交异性桥面板复合铺装层有限元分析及试验研究 |
| |
| 引用本文： | 刘世忠,冀伟,毛亚娜,李丽园,张霞忠.鱼腹式钢箱梁正交异性桥面板复合铺装层有限元分析及试验研究[J].土木工程学报,2011(Z1):128-134. |
| |
| 作者姓名： | 刘世忠 冀伟 毛亚娜 李丽园 张霞忠 |
| |
| 作者单位： | 兰州交通大学; |
| |
| 基金项目： | 国家自然科学基金(50968008); 甘肃省道路桥梁与地下工程重点实验室开放基金(NO.Kfjj-10-01) |
| |
| 摘 要： | 针对某大宽跨比鱼腹式钢箱梁正交异性桥面复合式铺装层的优化设计,进行多荷载工况作用下的有限元仿真分析,并辅以静载模型试验,分析铺装层各部分的应力分布规律。理论分析及试验结果表明,桥顶板表现出明显的正交异性特征,合理密度的剪力钉增加了桥面铺装各部分间的黏结能力及整体受力性能。两组试件疲劳试验结果表明,增设剪力钉辅以钢纤维混凝土过渡层的复合桥面铺装结构,经830万次疲劳加载试验没有出现疲劳破坏迹象,抗疲劳性能明显优于沥青混凝土直接摊铺于钢箱梁顶板表面的桥面铺装,钢纤维混凝土层能延长桥面铺装的使用寿命。
|
| 关 键 词： | 正交异性钢桥面板 剪力钉 钢纤维混凝土铺装层 受力分析 静载疲劳模型试验 |
Finite element analysis and test research on fish-bellied steel box beam with orthotropic deck and composite pavement |
| |
| Liu Shizhong Ji Wei Mao Yana Li Liyuan Zhang Xiazhong.Finite element analysis and test research on fish-bellied steel box beam with orthotropic deck and composite pavement[J].China Civil Engineering Journal,2011(Z1):128-134. |
| |
| Authors: | Liu Shizhong Ji Wei Mao Yana Li Liyuan Zhang Xiazhong |
| |
| Affiliation: | Liu Shizhong Ji Wei Mao Yana Li Liyuan Zhang Xiazhong(Lanzhou Jiaotong University,Lanzhou 730070,China) |
| |
| Abstract: | Aiming at the optimization design of composite pavement of orthotropic deck of fish-bellied steel box beam with lager ratio of wide-span,finite element simulation analyses are conducted under various load cases with static model test.Tthe stress distribution of each part of the pavement layer is analyzed.Theoretical analyses and experimental results show that bridge roof displays obviously orthotropic characteristics and shear nails with reasonable density can increase the binding capability between each pa... |
| |
| Keywords: | orthotropic steel deck shear nail steel fiber concrete pavement layer stress analysis static force fatigue model test |
| 本文献已被 CNKI 等数据库收录！ |
