侯 剑（中国建筑西南设计研究院有限公司，成都市 610042）

丁双宁（湖南机场建设指挥部，长沙市 410000）

Matters Needing Attention in Steel Cable Supporting Design

HOU Jian(China Southwest Architectural Design and Research Institute

Corp. Ltd,Chengdu 610042，China)

DING Shuangning(Hu’nan Airport Construction Headquarters,Changsha 410000，China)

 Abstract：The types of cable supporting are introduced,and such issues as the relevant standard difference,galvanized anti‑corrosion,fire resistance and prevention,application of fire‑resistant coatings and fire protection of supports & hangers are analyzed and discussed for the steel cable supporting which currently have the longest service time and the widest range of application. This work is conducive to the selection of the most suitable steel cable supporting in different scenarios,thus avoiding disputes arising from different understandings and further making the use of steel cable supporting safer.

Key words：steel cable supporting;fire‑resistant cable trunk;hot‑dip galvanizing;fire protection;fire resistance;fire‑resistant coating;support & hanger;safe working load

摘　要：介绍桥架的种类，针对目前使用时间最长使用范围最广的钢制电缆桥架，对相关标准差异问题、镀锌防腐问题、耐火和防火问题、涂刷防火涂料问题、支吊架的防火保护问题进行分析探讨。有助于在不同场合中选择最合适的钢制电缆桥架，避免因理解的不同产生分歧，进一步提高钢制电缆桥架使用的安全性。

关键词：钢制电缆桥架;耐火电缆槽盒;热浸镀锌;防火保护;耐火性能;防火涂料;支吊架;安全工作荷载

中图分类号：TM757      　　  　  文献标识码：A

doi：10.3969 / j. issn.1003 － 8493.2022.11.010