对国内首座飞鸟式无推力基础、体外索自平衡钢箱拱肋桥——大理兴盛大桥进行施工监控,根据实测应力及温度变化,确定钢箱拱肋合龙温度。根据拱脚钢混结合处的应力变化提出肋间钢横系梁焊接工艺;分阶段张拉体外索,观测各墩顶顺桥向位移及钢锚箱变化,为设计及施工提供监控意见。 The first bird-type thrust-free base in vitro, self-balancing steel cable arch bridge - Dali Xingsheng Bridge construction monitoring, according to the measured stress and temperature changes, to determine the steel box arch rib closure temperature. According to the change of stress at the joint of arch and steel, the welding process of intercostal steel transverse beam was put forward. The external cable was tensioned at different stages to observe the displacement along the top of each pier and the change of steel anchor box, which provided the monitoring opinion for design and construction.