摘要
文中介绍了某小半径曲线钢箱梁桥的结构特点和设计构造,并对支承形式设置问题进行了研究。通过对比分析不同支承形式对弯矩、扭矩,以及支反力的影响,确定比较合理可靠的支承方式。结果表明,通过支座预偏心结合压重措施,可以取得合理的成桥状态。
The structural characteristics and design structure of a small-radius curved steel box girder bridge are introduced,and the setting problem of support form is studied.By comparing and analyzing of the influence of different support forms on bending moment,torque and support reaction force,a more reasonable and reliable support method is found.The research results show that through the pre-eccentricity of the support combined with the weighting measures,a reasonable completed status of the bridge can be obtained.
作者
叶海强
朱洪志
YE Haiqiang;ZHU Hongzhi(Wuhan Branch of Shanghai Municipal Engineering Design&Research Institute Group Co.,Ltd.,Wuhan 430077,China)
出处
《交通科技》
2020年第5期35-38,42,共5页
Transportation Science & Technology
关键词
大跨度
钢箱梁
小半径
偏心
抗扭支座
long-span
steel box girder
small radius
eccentricity
torsional bearing
