支座预偏心设置对曲线梁桥受力影响分析  

Impact Analysis for Curve Girder Bridge of Bearing Eccentricity in Advance

作　　者：张博兰 

机构地区：[1]中土集团福州勘察设计研究院有限公司,福建福州350013

出　　处：《福建建筑》2015年第1期57-59,共3页Fujian Architecture & Construction

摘　　要：简要介绍支座预偏心改善扭矩的原理,通过计算实例来分析比较不同支座偏心距对独柱墩曲线桥梁受力的影响,结果表明,设置预偏心不影响曲线桥梁的弯矩和剪力分布,但对改善曲线梁桥端横梁处扭矩是很明显的,对边跨扭矩的均衡布置的影响也是很明显的,为以后的工程设计提供了一定的参考价值。Introduce the principle of torque improvement by bearing eccentricity in advance, analysis and comparison of different bearing eccentricity effect on the single column curve girder bridge by the engineering examples. The results show that bearing eccentricity does not affect the distribution of bending mo- ments and shear, but the effects of bearing eccentricity to improve torque at the end of the beam are obvious, also on the balance of the side span torque lay- out, and provide a certain reference value for future engineering design.

关 键 词：曲线梁桥 独柱支承 支座预偏心设置 

分 类 号：U441.5[建筑科学—桥梁与隧道工程]