Fabricated bridge spanning deep and large karst cave with water and construction method thereof

According to the fabricated bridge spanning the deep and large karst cave with water and the construction method of the fabricated bridge, the fabricated bridge is adopted, all components are of steel structures, and the corresponding type and size of each component are selected according to the stress characteristics and cost of each component. One side of the oblique beam and one side of the upper longitudinal beam are anchored in a karst cave wall rock stratum, all steel components are connected with connecting pieces through bolts, different components are connected through different connecting pieces, the component connection design is scientific and reasonable, and stability and practicability are high. The device is convenient to mount and dismount, and later maintenance and transformation are facilitated. 本发明为一种跨越深大有水溶洞的装配式桥梁及其施工方法，采用装配式桥梁，所有构件均采用钢结构，每种构件根据其受力特点及成本选择相应的型式和大小。除斜梁和上纵梁的一侧锚固在溶洞洞壁岩层中，所有钢构件之间和连接件用螺栓连接，不同构件连接采用不同的连接件，构件连接设计科学合理，稳定性及实用性强。且本申请安装拆卸方便，有利于后期维护改造。