大跨距桥架适合哪些场所？

　　What places are suitable for large-span cable trays?

　　在电缆桥架的应用中，我们经常会遇到一种特殊需求：电缆敷设跨度大、支撑点少。比如一些大空间厂房、仓库、隧道、站厅，这时普通桥架往往承载不足或容易变形，就需要使用大跨距桥架。那么，大跨距桥架究竟是什么？它又适合在哪些场所应用呢？

　　In the application of cable trays, we often encounter a special requirement: large cable laying span and few support points. For example, in some large space factories, warehouses, tunnels, and station halls, ordinary cable trays often have insufficient load-bearing capacity or are prone to deformation, requiring the use of large-span cable trays. So, what exactly is a large-span bridge? Where is it suitable for application?

　　什么是大跨距桥架？

　　What is a large-span bridge frame?

　　大跨距桥架，顾名思义，就是适用于跨度较大的电缆支撑结构。常见桥架的支撑点间距一般在 1.5m~2m，而大跨距桥架则能轻松实现 3m甚6m 的支撑跨度。

　　As the name suggests, large-span cable trays are suitable for cable support structures with large spans. The spacing between support points for common cable trays is generally between 1.5m and 2m, while large-span cable trays can easily achieve a support span of 3m or even 6m.

　　其主要特点有：

　　Its main features are:

　　结构加固：通常采用厚壁钢材或铝合金，边梁和底板强度更高。

　　Structural reinforcement: Thick walled steel or aluminum alloy is usually used, with higher strength for edge beams and bottom plates.

　　承载力强：能够承受多根大截面电力电缆同时敷设。

　　Strong bearing capacity: able to withstand the simultaneous installation of multiple large cross-sectional power cables.

　　变形小：在长跨度支撑下不易下沉或扭曲。

　　Small deformation: It is not easy to sink or twist under long-span support.

　　安装简便：减少支撑点数量，缩短施工周期。

　　Easy installation: reduce the number of support points and shorten the construction period.

　　大跨距桥架适合的场所

　　Suitable locations for large-span cable trays

　　1. 大型工业厂房

　　1. Large industrial plants

　　在重工业、机械制造、冶金、化工等厂房里，厂区跨度大、空间开阔。如果采用普通桥架，需要频繁设置支撑点，既增加施工量，又影响美观和操作空间。而大跨距桥架能够实现长距离悬空布线，满足大截面动力电缆的集中敷设需求。

　　In factories such as heavy industry, machinery manufacturing, metallurgy, and chemical engineering, the factory area has a large span and spacious space. If ordinary cable trays are used, frequent support points need to be set up, which not only increases construction volume but also affects aesthetics and operational space. And large-span cable trays can achieve long-distance suspended wiring, meeting the centralized laying requirements of large section power cables.

　　2. 电厂、变电站

　　2. Power plants and substations

　　电厂和变电站内，电缆数量多、规格大，而且常常需要穿越宽阔的空间。大跨距桥架强度高、稳定性好，能够保证电缆在高负荷运行下可靠。

　　In power plants and substations, there are many cables with large specifications, and they often need to pass through wide spaces. The large-span bridge has high strength and good stability, which can ensure the safety and reliability of cables under high load operation.

　　3. 交通枢纽与公共建筑

　　3. Transportation hubs and public buildings

　　地铁站、火车站、机场候机厅、展览馆等大型公共建筑，通常空间高大，布线需要跨越大跨度的站厅或走廊。使用大跨距桥架不仅减少支架数量，还能提升整体美观度。

　　Large public buildings such as subway stations, train stations, airport waiting halls, exhibition halls, etc. usually have large spaces, and wiring needs to span large-span station halls or corridors. Using large-span cable trays not only reduces the number of supports, but also enhances the overall aesthetics.

　　4. 隧道、管廊工程

　　4. Tunnel and pipe gallery engineering

　　市政管廊或交通隧道内，电缆往往需要沿壁长距离敷设，支撑点间距较大。如果用普通桥架，容易出现变形或电缆集中受力不均的问题。大跨距桥架则能保持结构稳定，适应复杂环境。

　　In municipal utility tunnels or traffic tunnels, cables often need to be laid along the walls for a long distance, with a large spacing between support points. If ordinary cable trays are used, it is easy to cause deformation or uneven stress distribution of cables. Large span cable trays can maintain structural stability and adapt to complex environments.

　　5. 仓储与物流中心

　　5. Warehousing and Logistics Center

　　现代物流仓库和立体货架库，内部层高大、跨度宽。布线若采用传统桥架，支撑繁琐且影响堆垛作业。而大跨距桥架能减少支架布设，让空间利用更。

　　Modern logistics warehouses and three-dimensional shelving warehouses have tall internal layers and wide spans. If traditional cable trays are used for wiring, the support is cumbersome and affects stacking operations. And large-span cable trays can reduce the number of brackets and make space utilization more efficient.

　　不适合的场所

　　Inappropriate places

　　虽然大跨距桥架承载能力强，但并非所有环境都适用：

　　Although large-span cable trays have strong load-bearing capacity, they are not suitable for all environments

　　弱电系统：对屏蔽、防尘要求高的场所，更适合槽式或全封闭桥架。

　　Weak current system: For places with high requirements for shielding and dust prevention, it is more suitable for trough or fully enclosed cable trays.

　　小空间布线：若环境空间狭小，使用大跨距桥架反而不经济。

　　Small space wiring: If the environmental space is small, using large-span cable trays may not be economical.

　　强腐蚀性环境：需要配合不锈钢或特殊防腐处理，否则容易缩短寿命。

　　Strong corrosive environment: It is necessary to cooperate with stainless steel or special anti-corrosion treatment, otherwise it is easy to shorten the service life.

　　总结

　　summary

　　大跨距桥架的优势在于 承载力强、跨度大、施工简便，特别适合 大型厂房、电厂变电站、交通枢纽、隧道管廊以及现代仓储建筑。它在满足电缆集中敷设需求的同时，还能减少支撑点布设，提高施工效率和美观度。

　　The advantages of large-span cable trays are strong bearing capacity, large span, and easy construction, making them particularly suitable for large factories, power plants, substations, transportation hubs, tunnel corridors, and modern storage buildings. It can meet the requirements of centralized cable laying while reducing the number of support points, improving construction efficiency and aesthetics.

　　本文由  山东桥架  友情奉献.更多有关的知识请点击  http://www.sddlqj.cn/   真诚的态度.为您提供为的服务.更多有关的知识我们将会陆续向大家奉献.敬请期待.

　　This article is contributed by Shandong Bridge Friendship For more related knowledge, please click http://www.sddlqj.cn/ Sincere attitude To provide you with comprehensive services We will gradually contribute more relevant knowledge to everyone Coming soon.