The steel-box girder of the tie-bar arch-bridge is the key part in the structural design.
对于下承式钢箱系杆拱桥来说，主梁是结构设计的关键部位。
2
Throgh eigenvalue buckling analyses, the stability of the through steel-box tie-bar arch-bridge is analyzed.
根据特征值屈曲分析方法，对某下承式钢箱系杆拱桥的稳定性进行分析计算。
3
The design of the injection mold of multiple points, plates and molded surfaces is simplified by using lock catch facility, joined tie-bar structure and decreasing the guide-pin amount.