| 曲线变宽连续钢箱梁桥的设计要点 |
| |
| 引用本文： | 张君.曲线变宽连续钢箱梁桥的设计要点[J].城市道桥与防洪,2021(3):43-46. |
| |
| 作者姓名： | 张君 |
| |
| 作者单位： | 中国建筑东北设计研究院有限公司,辽宁沈阳110000 |
| |
| 摘 要： | 对曲线变宽连续钢箱梁采用MIDAS软件建立空间梁单元、空间板单元进行计算分析,优化曲梁单元计算模型更加符合实际受力情况.依据新规范对各个设计要点如:局部稳定折减、剪力滞折减、第二体系、空间腹板配比等分项阐述,总结曲线钢箱梁计算规律与设计要点,提出优化设计思路.根据梁、板单元特性与结构特点合理选择计算模型.
|
| 关 键 词： | 曲线钢箱梁桥 有限元分析 局部稳定折减系数 剪力滞影响折减系数 刚性加劲肋 抗倾覆 抗疲劳 空间腹板恒载占比 |
| 收稿时间： | 2020/7/13 0:00:00 |
Design Essentials of Curve Widening Continuous Steel Box Girder Bridge |
| |
| ZHANG Jun.Design Essentials of Curve Widening Continuous Steel Box Girder Bridge[J].Urban Roads Bridges & Flood Control,2021(3):43-46. |
| |
| Authors: | ZHANG Jun |
| |
| Abstract: | MIDAS software is used to establish the spatial beam element and spatial plate element for the calculation and analysis of a curve widening continuous steel box girder. The optimization of the curved beam element calculation model is more consistent with the actual stress conditions. According to the new code, the design essentials of local stable reduction, shearing force lag reduction, the second system and spatial web proportion are expounded respectively. The calculation rules and design essentials of curve steel box girder are summarized. The idea of optimal design is proposed. Based on the properties of girder, plate element and structure, the calculation model is reasonably selected. |
| |
| Keywords: | curve steel box girder bridge finite element analysis local stable reduction coefficient shearing force lag influence reduction coefficient rigid ribbed stiffener antidumping antifatigue dead load ratio of spatial web |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《城市道桥与防洪》浏览原始摘要信息 |
| 点击此处可从《城市道桥与防洪》下载免费的PDF全文 |
