摘要
某大桥为双曲拱,经现场检测各项指标,不满足现行荷载等级要求。经过调整拱轴线与加大拱肋截面法综合加固处理后,对加固效果进行荷载试验,加固后结构刚度明显提高,拱脚截面最大负弯矩工况四分点最大挠度减少32.7%,拱顶最大正弯矩工况拱顶最大挠度减少37.1%,整体加固效果明显。
A bridge is a hyperbolic arch bridge, after testing, the indicators did not meet the requirements of the current load level. To adjust his arch axis and the increase of arch rib section after comprehensive treatment, obviously improve the structure stiffness, the arch foot section deflection of the maximum negative moment condition quartile reduced by 32.7%, vault vault the most-positive bending moment conditions decreased by 37.1%, the maximum deflection integral reinforcement effect is obvious.
出处
《湖南城市学院学报（自然科学版）》
CAS
2016年第3期1-2,共2页
Journal of Hunan City University:Natural Science
关键词
加大拱肋截面
调整拱轴线
加固
双曲拱桥
Increase the arch rib section
Adjust the arch axis
Einforce
Hyperbolic Arch Bridge
