Bridge's metal structure from the main beam and side beams, divided into single-and dual-beam bridgegirderbridge types.
桥架的金属结构由主梁和端梁组成，分为单主梁桥架和双梁桥架两类。
2
The moving grid technique is adopted to simulate the fluid fields around the rigid body such as bridgegirder cross-sections.
通过使用动网格技术，可实现对桥梁断面等刚体截面绕流场的模拟。
3
The text detailedly introduced crown block, running system, availability work period of bridgegirder erection equipment and improve case for precast beams install.