A, the role of scaffolding and common type
Is the main purpose of scaffold for stacking, short distance when working on high level transport and workers in the construction work. High homework five basic types and potential safety hazard will occur in the homework on scaffolding.   
   
The scaffold shall meet the following basic requirements:
   
(1) to have enough robustness and stability, and ensure construction period specified under the action of load and climate conditions, not deformation, tilt, and shaking;  
(2) to have enough usable floor area, meet the piled material, transportation, operation and walking requirements;   
(3) structure simple, the erection, dismantle and transport more convenient.   

Second, scaffolding work general safety technical knowledge
   
(1) the third section of this chapter explained the construction site of the related content, high operation safety technology common sense in the scaffold erection, dismantle and the rack can be used in the construction work.   
   
(2) each project construction should be the scaffold construction plan, if using high, special, new scaffold, must be approved by the technical department of design drawings, calculations and technical clarificaiton safety book to build-up. At the same time, to organize all the homework personnel familiar with the construction technology and operation requirements, determine the erection method. Before the erection, team leader to lead the workers to the construction environment and tools needed for inspection, safety protection facilities, to eliminate hidden dangers rear can work.   
   

(3) the scaffolding set-up, want to combine the progress of the structure when construction scaffolding always higher operation step, but should not be set too high at a time. Scaffolding, unfinished homework personnel leaving the post, rest or work, there shall not be not fixed components, and guarantee the stability of the shelf. After scaffolding must via scaffolder foreman in conjunction with the safety personnel for acceptance, qualified to use.