Large -span bridge structure constructs crossbeam

The utility model relates to a the utility model relates to a large -span bridge structure constructs crossbeam. Be connected with bridge structure with lower strengthening rib through reinforcing bar coupler, main arrangement of reinforcement, vice arrangement of reinforcement, welding point by last strengthening rib, the geometry of main arrangement of reinforcement, vice arrangement of reinforcement reachs through topological optimize design method to use the crossbeam central line to arrange at the crossbeam both ends as the symmetry axis. The inside concrete -filled material of crossbeam. 本实用新型涉及种本实用新型涉及种大跨度桥式结构建筑横梁。主要是由上加强筋通过钢筋连接件、主配筋、副配筋、焊接点与下加强筋以桥式结构相连接，主配筋、副配筋的几何形状通过拓扑优化设计方法得出，并以横梁中心线为对称轴排列在横梁两端。横梁内部填充混凝土材料。