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| 桥面板对悬索桥钢管桁架梁受力的影响研究 | |
| 引用本文： | 周燕其,谢玉洁,陈力华. 桥面板对悬索桥钢管桁架梁受力的影响研究[J]. 公路交通技术, 2012, 0(1): 54-58,66 |
| 作者姓名： | 周燕其 谢玉洁 陈力华 |
| 作者单位： | 1. 中国中铁二院工程集团有限责任公司,成都,610031 2. 西南电力设计院,成都,610021 3. 招商局重庆交通科研设计院有限公司,重庆,400067 |
| 摘 要： | 以重庆市某钢管桁架梁悬索桥为工程实例,对按照截面特性计算、Midas/civil建模计算和荷载试验3种方法得到的中性轴y值进行对比分析,研究桥面板是否参与受力及对悬索桥钢管桁架梁受力的影响.结果表明,在活载作用下,主梁下挠时,局部桥面板会与桁架梁共同抗弯,使得主梁整体中性轴上移,上弦杆应力大幅度减小,下弦杆应力大幅度增... |
| 关 键 词： | 悬索桥 桁架梁 桥面板 中性轴 |
Research on Influences of Deck Slabs on Stress of Steel Truss Beams of Suspension Bridges |
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| ZHOU Yanqi , XIE Yujie , CHEN Lihua. Research on Influences of Deck Slabs on Stress of Steel Truss Beams of Suspension Bridges[J]. Technology of Highway and Transport, 2012, 0(1): 54-58,66 | |
| Authors: | ZHOU Yanqi XIE Yujie CHEN Lihua |
| Affiliation: | ZHOU Yanqi,XIE Yujie,CHEN Lihua |
| Abstract: | Based on some steel truss beam suspension bridge in Chongqing as a project example,this paper comparatively analyzes the y values of neutral axis via three methods,i.e.calculation of sectional characteristics,Midas/civil modeling calculation and loading test and studies whether deck slabs participate in stress or not and their influences on stress of steel truss beams of suspension bridges.The results show that local deck slabs will resist bending together with truss beams when girder downwarps under the effect of live load,enabling neutral axis in integral of girder to move upwards,the stress on upper boom decreases dramatically,while the stress on lower boom increases greatly.This result can provide a reference for similar projects. |
| Keywords: | suspension bridge truss beam deck slab neutral axis |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |