Scaffolding is mainly used for construction personnel to work up and down or external safety net enclosures and high-altitude installation components. It stands to be taken as a scaffolding, and some projects are also used as templates for scaffolding. In addition, advertising agencies, municipalities, roads and bridges, and mines are also widely used. use. The following Xiao Bian will introduce the classification and characteristics of scaffolding, let's look at it together.

Classification of scaffolding

1. Whether it can be moved: it is divided into mobile and fixed;

2, materials: divided into wood, steel and ladders;

3, tower connection form and use of use:

1 template bracket - used to support the template, using a shelf scaffolding material

2 single-row scaffolding - referred to as a single row, that is, only a row of poles, a horizontal horizontal bar on the wall of a type of scaffolding on one end

3 double-row scaffolding - referred to as double-row scaffolding, ie scaffolding consisting of two rows of uprights and horizontal rods inside and outside

4 Decoration Scaffolding - For Construction Works

5 Structure scaffolding - for masonry and structural engineering construction operations

6 Overhanging Scaffolding - Applied to Equipment Installation or Overhaul Cantilever Operation

4, the nature of construction: divided into construction scaffolding and installation of scaffolding

5, the size of the block

1 Open type: There are scaffoldings and footrests on the working floor only, and no other sheltering facilities. It is popular for Tianjin scaffolding leasing.

2 Fully enclosed: Scaffolds that are closed along the outside and full height of the outside of the scaffold.

3 Semi-closed: Scaffolds with 30% to 70% occlusion area.

4 Partially closed: The obstructed area is less than 30%.

6, other

1Ladder: Hangzhou dry use short sticks or steel pipes, ropes tied to the cross bar, use the top of the fixed, catalytic flue, reactor, regenerator, inclined pipe and other maintenance often used.

2 Mobile ladders, hanging baskets: Fixed ladders or hanging baskets that can be moved, usually with hooks or slides at the top, hanging in a secure location.

Scaffolding features

Different types of construction use different types of scaffolds and formwork supports. Most of the bridge support racks use bowl-buckle scaffolding, and there are also door-type scaffoldings. The main structure of the construction landing scaffolding using fasteners mostly, the vertical distance of the scaffold pole is generally 1.2 ~ 1.8m; horizontal distance is generally 0.9 ~ 1.5m.
Compared with the general structure, the scaffold has the following characteristics:

1, the greater the variability of the load;

2. The fastener connection node belongs to semi-rigid, and the rigidity of the node is related to the fastener quality and installation quality, and there is a large variation in the node performance.

3. There are initial defects in the structure and components of the scaffold, such as the initial bending and corrosion of the rods, the erection of the dimensional error, the eccentricity of the loading, etc.

4. The connection point with the wall has a greater variation in the constraints of the scaffolding. The research on the above problems lacks systematic accumulation and statistical data, and does not have the conditions for independent probabilistic analysis. Therefore, the value of the adjustment coefficient that multiplies the structural resistance by less than 1 is determined by the calibration with the safety factor used in the past. Therefore, the design method used in this specification is essentially semi-probabilistic and semi-empirical. The scaffolding meets the structural requirements specified in this specification is the basic condition for design calculation.

The above is a brief introduction for Xiaobian. If you want to know more related information, please continue to pay attention to Qijia Consulting. More exciting consultation, please stay tuned.

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