鱼腹式连续弯箱梁桥承载能力评估研究

The evaluation of bearing capacity of fish-belly type box-section continuous curved beam bridge

以某鱼腹式连续弯箱梁为工程背景,针对其受力特点,结合成桥后静载试验和环境脉动试验,将试验结果与有限元理论值相比较,综合评估其承载能力,并得出鱼腹式连续弯箱梁桥实际荷载作用下的部分受力特性。为类似桥型的受力分析及承载能力评估提供一定的工程经验。

The mechanical characteristics of certain fish-belly box-section continuous curved beam bridge were analysed. Static load test and environmental fluctuation test of the fish-belly box-section continuous curved beam bridge were conducted. The results were compared with that of finite ele- ment theoretical results. The bearing capacity of the bridge was comprehensively evaluated. A part of the mechanical characteristics of the fish-belly box-section continuous curved bridge under actual loading were obtained. The mechanical analysis and bearing capacity evaluation may offer some use- ful data for similar bridge engineering projects.