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duty scaffolding steel shoring prop and scaffolding accessories specifications

Time: 2019-08-12 16:25:54

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have reliable drainage measures to prevent the water from immersing the foundation.we are provide duty scaffolding steel shoring prop and scaffolding accessories specifications​ ,you can know it.

duty scaffolding steel shoring prop and scaffolding accessories specifications

Scaffolding is a working platform set up to ensure the smooth progress of each construction process. According to the position of the erection, it is divided into outer scaffolding and inner scaffolding;

According to different materials, it can be divided into wooden scaffolding, bamboo scaffolding and steel scaffolding; according to the structure, it is divided into vertical scaffolding, bridge scaffolding, door scaffolding, suspended scaffolding, hanging scaffolding, picking scaffolding and climbing scaffolding.we are provide duty scaffolding steel shoring prop and scaffolding accessories specifications ,you can  know it.

Features:

Scaffolding for different types of construction is used for different types of construction. Most of the bridge supports use bowl buckle scaffolding, but also use door type scaffolding. The main structure construction floor scaffolding is mostly used for fastener scaffolding. The longitudinal distance of the scaffolding pole is generally 1.2~1.8m; the lateral distance is generally 0.9~1.5m.

Compared with the general structure, scaffolding has the following working conditions:

1.The load variability is large;

2.The fastener connection node is semi-rigid, and the rigidity of the node is related to the quality of the fastener and the quality of the installation, and the performance of the node is greatly variable;

3.The initial defects of the scaffold structure and components, such as the initial bending and rust of the rod, the size error of the erection, the eccentricity of the load, etc. are all large;

4.The connection point with the wall has a large variation on the binding of the scaffold. The research on the above problems lacks systematic accumulation and statistical data, and does not have the conditions for independent probability analysis. Therefore, the structural resistance multiplied by the adjustment coefficient less than 1 is determined by calibration with the safety factor used in the past.

Therefore, the design method adopted 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.

Fastener

1,advantages

1)The bearing capacity is large. When the geometrical dimensions and construction of the scaffold meet the relevant requirements of the specification, under normal circumstances, the bearing capacity of the single-column column of the scaffold can reach 15kN ~ 35kN (1.5tf ~ 3.5tf, design value).

2)Easy to install and disassemble, flexible setting. Since the length of the steel pipe is easy to adjust and the fasteners are easily connected, it can be used for scaffolding for buildings and structures of various planes and facades.

3)It is economical, simple in processing, and low in investment cost. If the geometrical dimensions of scaffolding are carefully designed and the turnover rate of steel pipes is increased, the material dosage can also achieve better economic results. The fastener steel pipe frame is equivalent to about 15 kg of steel per square meter of construction.

2,disadvantages

1)The fastener (especially its screw) is easily lost;

Bolt tightening torque should not be less than 40N·m, and should not be greater than 65N·m;

2)The rods at the joints are eccentrically connected, and the load and internal force are transmitted by the anti-sliding force, thereby reducing the carrying capacity;

3)The connection quality of the fastener nodes is significantly affected by the quality of the fastener itself and the operation of the worker.

3,adaptability

1)Construct various forms of scaffolding, formwork and other support frames;

2)assembling the well frame;

3)Set up ramps, work sheds, stands and other temporary structures,

4)As an aid to other kinds of scaffolding, strengthen the rod;

4,set up requirements

Steel pipe fastener scaffolding should pay attention to the foundation is flat and solid, set the base and the backing plate, and have reliable drainage measures to prevent the water from immersing the foundation.we are provide duty scaffolding steel shoring prop and scaffolding accessories specifications ,you can  know it.

According to the setting condition of the wall bar and the load size, the commonly used open double-row scaffolding poles are generally 1.05~1.55m horizontally, and the masonry scaffolding step is generally 1.20~1.35m. The scaffolding for decoration or masonry and decoration is generally It is 1.80m and the vertical length of the pole is 1.2~2.0m. It allows the height of the erection to be 34~50m. When set for a single row, the vertical distance of the pole is 1.2~1.4 m, and the longitudinal length of the pole is 1.5~2.0m. The height of the erection is allowed to be 24m.

The longitudinal horizontal rod should be arranged on the inner side of the vertical rod, and its length should not be less than 3 spans. The vertical horizontal rod can adopt the butt joint fastener, and can also be overlapped. If the butt fastener method is adopted, the butt fasteners shall be staggered; if the lap joint is used, the lap length shall not be less than 1 m, and three rotating fasteners shall be fixed at equal intervals.

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