| 常先睿,许荣盛,单庆婷.ECC- 钢桥面铺装层槽钢连接件承载力分析[J].安徽建筑大学学报,2022,30(3):8-17 |
| ECC- 钢桥面铺装层槽钢连接件承载力分析 |
| Bearing Capacity Analysis of Channel Steel Connectors in ECC-Steel Deck Pavement |
| |
| DOI： |
| 中文关键词: 桥梁工程 抗剪承载力 有限元分析 组合桥面板 槽钢连接件 工程水泥基复合材料 |
| 英文关键词: bridge engineering shear behavior finite element analysis composite bridge deck channel steel connector engineered cementitious composite |
| 基金项目:安徽建筑大学博士启动基金项目（2020QDZ25） |
|
| 摘要点击次数: 5961 |
| 全文下载次数: 5125 |
| 中文摘要: |
| 铺装层与钢桥面在周期性交通荷载作用下展现出较差的抗剪切能力，易产生推移、拥包等病害损坏。针对此，提出基于槽钢连接的 ECC- 钢桥面铺装结构，通过有限元软件模拟槽钢推出试验，并结合正交试验研究 ECC 材料中槽钢力学性能。结果表明：槽钢连接件在 ECC 中的破坏模式以剪切断裂为主，槽钢尺寸对抗剪承载力的影响排序为槽钢长度 > 腹板厚度 > 翼缘厚度 > 槽钢高度，并提出了槽钢剪力影响域概念。最后通过对模拟结果进行函数拟合得到槽钢承载力修正系数，用于计算 ECC 材料中槽钢连接件的抗剪承载力。 |
| 英文摘要: |
| The pavement and steel deck exhibit poor shear strength under cyclic traffic loading and are susceptible to diseases such asshoving and bumps. Therefore，an ECC-steel deck pavement structure based on channel steel connection is proposed. The mechanicalproperties of channel steel in ECC materials are investigated by simulating channel steel launch tests with finite element software andorthogonal tests. The results show that the failure of channel steel connectors in ECC is mainly shear fracture. The influence of channelsteel size on the shear bearing capacity is ranked from largest to smallest as channel steel length，web thickness，flange thickness andchannel height and the concept of shear affected domain of channel steel is proposed. Then，the correction coefficients of the channelsteel bearing capacity is obtained by the function fitting of the simulation results，which is used to calculate the shear bearing capacityof channel steel connectors in ECC materials． |
|
查看全文
查看/发表评论 下载PDF阅读器 |
| 关闭 |
