Showing posts with label scaffolding. Show all posts
Showing posts with label scaffolding. Show all posts

2016/08/15

Specification Lists of Scaffolding Items

1. The erection of scaffolding must be added a base or foundation, and the foundation of treatment. This project poling brace on the foundation slab directly or old soil, foundation pit bottom add tie bearing. Old soil surface laid foundation pit bottom plate must be smooth and shall not be suspended, placed the base should be pull and pull rod, spacing dimension by the regulation to be fixed after placement. 


2. Steel pipe scaffolding erection sequence is: put sweeping bar (close to the ground of the ledger, height of 20 cm) and by the root set upright, then to sweep the floor and rod fastening of the small bar and rod or sweep the floor and rod fastening, the first step of ledger (with the vertical pole fastening) -  first step putlog - the second step of ledger - adding temporary inclined strut (upper main rail fastening, and the second step in installing two wall behind the bar can be dismantled) - the third step, four main rail and putlog to wall rod with Ann, Ann, put the stud - added a bracing - scaffolding plank.

3. Stud set must be equidistant to straight, the longitudinal spacing shall not be more than 1.8 m. Poling horizontal spacing of 1.0 m, poling from metope to 40 cm. Putlog vertical spacing interval) (that is, the scaffold is 1.8 m, the underlying interval shall not be greater than 2 m, small bar pick out the inside and the length of the stud shall not be less than 30 cm and 15 cm respectively.     Scaffolding outside every 9 m must establish a bracing, and the Angle of the ground should be controlled in 45 ° to 60 ° between top-down set in a row. 

We are manufacturer of Scaffolding Pipes and supply high quality Scaffolding Pipes in both large and small quantities worldwide & offer you the best prices in the market.

We have a team of experienced professionals with years of experience in manufacturing.

2016/08/11

What Caused the Easily Collapse of Scaffolding System

1. The material 2. Design problem and 3.Application problems.

1.Material: the main parts of the gantry scaffolding tube steel pipe. According to the standard requirements, the doors scaffold should use 48 mm outside diameter, wall thickness of 3.5 mm carbon steel pipe welding. 
This kind of steel pipe due to the thickness of the moment of inertia to make lose 10%, use the rust after a long time can cause wall thickness is thinner and moment of inertia will also reduce, so will become a safety hazard.

2. The design problem: activity scaffolding collapse is the main reason of the support is not stable. Before construction, many enterprises were not scaffolding stiffness checking, just rely on experience support system, the insufficient scaffolding tube rigidity and stability of the support system to consider. Other steel pipe due to corrosion or wear and tear, and the local bending, welding, will lead to the actual bearing capacity to reduce a lot of steel tube, it is easy to happen accident.

3. The application problem: many current construction site technical director, not on the safety of the construction workers for detailed technical clarificaiton, plus some workers quality is lower, will inevitably occur application problems.

We are manufacturer of Carbon Steel Pipes and supply high quality Carbon Steel Pipes in both large and small quantities worldwide & offer you the best prices in the market.
We have a team of experienced professionals with years of experience in manufacturing.