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.

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Requirements and Measures of Scaffolding Fireproof

Various types of scaffolding fire should work closely with the construction site fire protection and measures should primarily do the following: 

1) scaffolding should be placed near a number of fire extinguishers and fire-fighting equipment, should understand the basic usage and basic knowledge of fire extinguishers. 2) must be cleared up on the scaffolding and Lee carried away construction debris around 3) on the temporary scaffolding or scaffolding near the hot work must be handled in the hot work permit, prior to clean hot work site or non-combustible materials are separated, fire-fighting equipment configuration, and a personal supervision, with the flare types of cooperation, coordination. 4) no smoking on the scaffolding. Strictly prohibited foot rack or store near combustible, flammable and explosive chemical materials and building materials. 5) manage the power supply and electrical equipment, power production must be stopped to prevent short circuits, maintenance or operation of electrical equipment under power to prevent arcing or spark damage scaffolding, or even cause a fire burned down the scaffolding.  

6) use of fire (welding, gas welding, torch, etc.) according to the Fire Services Ordinance and construction unit, construction units apply the provisions of the use of fire and approval procedures, approval and taken certain security measures before being allowed to work.

The Uses of Scaffolding

Scaffolding, also called scaffold or staging, is a temporary structure used to support a work crew and materials to aid in the construction, maintenance and repair of buildings, bridges and all other man made structures. 

Scaffolding belongs to a temporary structure used to support people and material in the construction or repair of buildings and other large structures. The construction and renovation industry.  Painters, window washers, and construction workers who deal with multi-story structures. Scaffolding is most often used for creating a working platform for either building or maintaining structures, but because it is so adaptable, it can be used for a variety of purposes, including: Maintaining the exterior of an existing structure eg. painting. Providing working platforms for workers building a structure. Stair towers for access to other raised platforms such as flat roofs. Suspended platforms, cradles or hanging platforms eg. for bridge maintenance. Platforms on uneven ground for stages or marquees. Stabilising or shoring a structure or tall object to keep it vertical. Temporary roofs. Temporary ring lock scaffolding walkways. Temporary bridges. Temporary buildings eg. storage sheds. River bank or lake-side reinforcement. Ramps. Sign-boards frames and advertising hoardings. Bracing structural props. Racking and storage bays. Hand-rails and edge protection. Masts for aerial. Stage sets for television, film and theatre.