Lighting scaffold erected on the line must have insulator or other insulating support ; height of 20m or more, without

scaffolding within the scope of protection of the lightning must establish a separate lightning rod , lightning protection devices must comply with safety requirements. Laying scaffold boards should be met: paved , smooth , firm, without probe

plate ; head lap double rail should be located ; corners ( bend ) at the overlap should be staggered ; lap length should be greater than 2Ocm, and construction, vertical distance from the surface of structures should be 20cm; scaffold boards should be taken after the laying of reinforcement measures to prevent warping move or shift . Height of 30m above the

height of steel scaffolding and wood, bamboo scaffolding, should be specially designed 15m or more, before they can

erection . Selection of different types of construction scaffolding and templates for different purposes bracket. Currently, the bridge support bracket using scaffolding Bowl majority, also used gantry scaffolding . Main structure construction

scaffolding fastener and scaffolding floor and mostly scaffolding pole vertical distance is generally 1.2 ~ 1.8m; horizontal distance is generally 0.9 ~ 1.5m.