At present, the widely used box section beam, rigid frame, cable-stayed Bridges and other structures.
2
预应力混凝土箱型截面桥梁结构是我国桥梁工程中最常用桥型结构形式之一。
PC Bridge with box section is one of the most popular structure types in the bridge construction in China.
3
因此臂架需要有一定的侧向刚度以保证其振动稳定性,即要求箱型截面形状设计合理。
Therefore need to have a certain arm lateral stiffness to ensure stability of the vibration, which would require the box shape of the design of a reasonable cross-section.