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1·Bridge's metal structure from the main beam and side beams, divided into single-and dual-beam bridge girder bridge 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 bridge girder 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 bridge girder erection equipment and improve case for precast beams install.

详细介绍了对双导梁式架桥机天车、行走系统、有效工作长度及预制梁安装就位的改进情况。

4·The gait-model bridge girder erection machine mainly applied to the erection of long-span, large-tonnage and double amplitude bridge deck concrete full-span box girders.

本架桥机 主要应用于大跨度、大吨位、双幅桥梁架设中混凝土整孔箱梁的架设。

5·At present, there is not special technological criterion or specification in China for manufacturing and welding steel structure of railway bridge girder erecting machine.

目前，国内在铁路架桥机钢结构的制造及焊接工艺方面，还没有专门的规范或规程。

6·According to the structural characteristics and use of bridge girder erection machine, this paper analyzes risk factors, corresponding measures to be taken for preventing accident.

本文根据架桥机的结构特点和使用状况，分析引起危险因素的原因，提出预防事故发生要采取的安全措施和相应办法。

7·One of the most noticeable structrual differences between the cable-stayed bridge and the truss and girder types lies in the field of flexibility .

斜拉桥与桁架和梁式类型桥之间，在结构上的一个最显著不同之处，在于柔度方面。

8·Otherwise, in using the continuous girder bridge we can find that the craze of the box-beam is very popular.

另外，在预应力连续桥梁的使用过程中，发现箱梁开裂的现象相当严重。

9·This paper expounds the design idea and main contents of construction control system in Self-anchored Suspension Bridge with different girder stiffness.

本文系统地阐述了不同主梁刚度的自锚式悬索桥施工控制系统的设计思路和主要内容。

10·To install the crane span before installation, camber, level of metal structure of main girder bending, trolley rail height difference, gauge deviation, diagonal bridge survey.

安装前要对起重机安装跨度，金属结构主梁的拱度、水平旁弯，小车轨道高低差、轨距偏差，桥架对角线等进行测量。