电缆桥架是智能建筑的弱电系统，通常有多个信息监控和通信设施诸如BA（楼宇自动化）、OA（办公自动化）、CA（通信自动化）等相应的系统组成, 电缆桥架分为槽式、托盘式和梯架式等结构，由支架、托臂和安装附件等组成。
Cable bridge is a weak current system in intelligent buildings. It usually consists of several information monitoring and communication facilities such as BA (building automation), OA (office automation), CA (communication automation) and other corresponding systems. Cable bridge is divided into trough, tray and ladder structures, which are composed of brackets, brackets and installation accessories.
电缆桥架的荷载分为荷载、动荷载和附加荷载。
The load of cable bridge is divided into load, dynamic load and additional load.
静荷载是指敷设在电缆桥架内的电缆种类、根数、每根的外径重量/单位长度,按电缆敷设的不同路由分别列表统计。动荷载是指电缆桥架安装和维护过程中施工维修人员的重量。对于轻型电缆桥架,一般不考虑动荷载,即不允许在桥架上站(行)人,如果需要考虑站人,则应将跨距适当缩小。附加荷载仅在室外是指冰雪、风和电磁力所形成的荷载,它与安装场所的地区自然气象条件和带电体的性质有关,设计中应根据各种条件加以计算。
Static load refers to the type, number of cables laid in the cable bridge, and the weight/unit length of each cable's outer diameter, which are listed and counted according to the different routes of cable laying. Dynamic load refers to the weight of construction and maintenance personnel in the process of installation and maintenance of cable bridge. For light cable bridges, dynamic loads are generally not considered, that is, no pedestrians are allowed to stand on the bridge. If the pedestrians need to be considered, the span should be reduced appropriately. Additional load refers to the load formed by ice, snow, wind and electromagnetic force only outdoors. It is related to the natural meteorological conditions in the installation site and the nature of charged bodies. It should be calculated according to various conditions in the design.