The total length of each type of bridge and the total length of each standard bridge are calculated respectively. In addition to standard length pallets and number of pallets, increase by 1% - 2%. Column: if the column specification, the length of the bridge divided by the average column spacing is the number of columns, and then 4% of the allowance is increased by 2%. If the column specifications are different, you need to separate the statistics. This bracket is an example of the average bridge length divided by the bracket, which increases the total demand by 1% to 2%. Other parts: the number is obtained by multiplying the percentage of the bridge itself by the total.
It is forbidden to use the steel bridge as a pedestrian passage, ladder or standing platform, if these are not only harmful to the bridge products, but also bring some uncertain factors. The support and hanger shall not be used as the support for hanging heavy objects. When laying cables in the bridge, it is forbidden to use the supports and hangers of the bridge as fixed hoisting devices, driving devices, pulleys and supports, and special tools shall be used for hoisting.
When the thermal insulation layer is applied on the steel bridge surface, the original surface packaging shall be removed. The spring washer shall be installed on the connecting bolt of cable tray at the vibration position and electrical grounding position.
Install steel cable tray or fix it with steel cable tray accessory alloy. When the steel is hot-dip galvanized surface, it can directly contact with aluminum plate. When the surface is sprayed with paint or paint powder, PVC or ammonia gas shall contact the isolation base between the surface and aluminum plate as rubber filler. For the steel bridge installed in corrosive environment, measures shall be taken to prevent the steel bridge protection surface from being damaged. After cutting holes, the exposed metal surface shall be repaired with corresponding anticorrosive coating or paint.
以上是山东电缆桥架厂家为大家介绍的相关内容，想要了解更多内容，欢迎访问网站：http://www.sdhangfeng.comThe above is the relevant content introduced by Shandong cable bridge manufacturer for you. To learn more, please visit the website: http://www.sdhangfeng.com