Building scaffolding steel pipe specification table

1. Specifications of scaffolding steel pipes: diameter is φ3.0, φ2.75, φ3.25, φ2.5; the length is generally 1-6 meters and a half meters, which can be processed according to customer requirements.
2, scooter steel pipe execution criteria: SY/T5768-95 GB/T3091-2001.
3, the material of the scooter steel pipe: Q195, Q215 or Q235.
Extension information
type
buckle type
1, advantages
1) The load capacity is large. When the geometric size and structure of the scaffold meet the relevant requirements of the standard, in general, the bearing capacity of the single -pillar of the scaffolding can reach 15kn to 35kn (1.5TF ~ 3.5TF, design value).
2) Easy to disassemble and set up flexible. Because the length of the steel pipe is easy to adjust and the buckle is easy to connect, it can adapt to the scaffolding of various plane and facade buildings and structures.
3) Compared with economical, simple processing, and low investment costs; if you carefully design the geometric size of scaffolding and pay attention to improving the conversion rate of steel pipes, the amount of material can also achieve better economic effects. The steel tube rack is equivalent to about 15 kg of steel per square meter.
2, disadvantages
1) Folk (especially its screw) is easy to lose;
This tightening torque should not be less than 40N · m, and should not be greater than 65N · m;
2 ) The rods at the node are eccentric connection, and the load and internal force are transmitted by anti -slip power, thus reducing its carrying capacity;
3) The connection quality of the buckle node is significantly affected by the quality of the deduction itself and the working operation of the workers.
door -type steel pipe
1, advantages
1) door -type steel tube scaffolding geometric size standardization.
2) The structure is reasonable, the force is good, and the strength of the steel is full.
3) The installation and demolition during construction are easy, high -end efficiency, provincial labor, time, safe and reliable, and economical.
2, disadvantages
1) The size of the frame is not flexible, and any changes in the size of the frame must be switched to another type of door frame and its accessories
2) Broken;
3) The stereotypes are heavier,
4) The price is more expensive. Single, double -row scaffolding, supporting frames, supporting pillars, material enhancement racks, climbing scaffolding, and cantilee frames such as the size, shape and carrying capacity of the group frame. It can also be used to set up construction sheds, sheds, lighthouse and other buildings. It is particularly suitable for setting curved scaffolding and heavy load support frames.
2) High -efficiency: The longest in common rod is 3130mm, weighing 17.07kg. The whole frame is 3 to 5 times faster than the conventional, and it is fast -moving and effort. Workers can complete all operations with a hammer to avoid many inconvenience caused by bolt operations.
3) Strong generalality: The main components use ordinary buckle steel pipe scaffolding steel pipes. It can be connected to ordinary steel pipes with deductions and strong versatility.
4) Large carrier capacity: The connection of the vertical rod is the coaxial heart inheritance, and the crossbars are connected by a bowl buckle joint. The joints have reliable bending, shear, and anti -torsion. In addition, the axis of each rod is intersecting, and the node is in the frame plane. Therefore, the structure is stable and reliable, and the carrying capacity is large.
2, disadvantages
1) The horizontal rod is a set of several sizes, and the bowl buckle node on the vertical rod is set at 0.6m spacing to restrict the size of the frame;
2) U -shaped connection is lost ;
3) The price is more expensive;
-buckle type
1) Easy and fast: build easy and fast, and has strong mobility, which can meet the large -scale operating requirements;
2) Flexible and safe and reliable: You can build a variety of specifications, multi -row of moving scaffolding according to different actual needs, all kinds of perfect safety accessories, and provide firm and safe support in the operation; Small ground, and can promote convenient transfer, components can pass through various narrow channels.
Reference materials: Baidu Encyclopedia-scaffold

Stepper steel pipe specifications of scaffolding scaffolding pipe specifications

The material of scaffolding steel pipes
q195, Q215 or Q235

.75, φ3.25, φ2.5
Land length: 1-6 meters and a half meters of specifications; processed according to customer requirements

95 GB/T3091-2001

The theoretical weight calculation formula of scaffolding tube
The weight of the national standard frame tube is 0.00384 tons, and the actual weight of the full tube: 0.00384*steel pipe length

This Steel pipe scaffolding
1. When setting up the scaffolding, a base or foundation must be added to the foundation. The vertical rod of this project is directly supported on the base plate or the old land at the bottom of the foundation pit, and the wooden support is added. The panels on the old soil surface at the bottom of the foundation pit must be stable, and they must not be suspended. When placing the base, pull the line and slide, and fix it after placing the size of the specified distance.

2. The sequence of the steel pipe scaffolding is: placed the sweeping rod (the large horizontal rod close to the ground, the height is 20cm) → set the vertical rod at the root, and then tighten the ground with the sweeping rod → load the small crossbar of the ground. And fasten tightly with the vertical rod or sweeping rod → the first step of the Annou (tightly buckled with each rod) → An first step of the small horizontal rod → the second step of the Annan step → add the temporary oblique pole (upper end to the upper end The second step is tightly buckled, only after the two wall rods are installed can be removed) → An third and fourth steps of large crossbars and small crossbars → Annian wall rod → An connection rod → Add scissors to support → Put your hands.

3. The setting of the vertical rod must be straight, and its vertical distance must not be greater than 1.8m. The horizontal spacing of the vertical rod is 1.0m, and the vertical rod is 40cm from the wall. The vertical spacing (that is, the step distance of the scaffolding) of the small horizontal rod is 1.8m, and the underlying step distance must not be greater than 2m. The length of the small horizontal rod out of the inside and outer rods must not be less than 30cm and 15cm, respectively. A scissors must be set up every 9m outside the scaffolding, and the angle with the ground should be controlled continuously from top to bottom between 45 ° -60 °.
1. The connection point of the vertical rod and the large horizontal pole of the scaffold must be staggered. The length of the steel pipe scissors must be overlapted. The connection of the scaffolding rods must be carried out strictly in accordance with the regulations. The torque torque of the scaffolding parts should be controlled at 4.5-5kg/m, and the binding point of each top and vertical rod shall not be less than 3. There should be two rest grids between the large horizontal rods; the bottom should be full, and there must be no gaps. The binding point of the bottom and the large horizontal rod must not be less than 4. (The top of the scaffolding must be capped according to the requirements of the regulations; the mount should be lower than the eaves 50cm, and the end rod should be 1m higher than the eaves). There must be a strong pull -up point between the scaffolding and the main structure. Two side -to -12 lead wires or other intensity materials are used. The horizontal spacing of the pull point must not be greater than 6m, and the vertical distance must not be greater than 3.6m. The small horizontal rod at the taper and the building should be added with the wall and the wall.
2. Outside of the scaffolding, from the second step, a 1m high protective railing and a 40cm height should be set up each step. The top -row armrest railing must not be less than 2, and the height is 1.3m and 0.9m, respectively. The inner rod of the scaffolding should be arranged every 4 steps between the wall. The operator must have safe and reliable ladder climbing and ramps on the shelves, and the ladder climbing and ramp should be located outside the scaffolding. The steel tube scaffold must have a good grounding device, and the grounding resistance should not be greater than 4Ω. The lightning protection device shall be set in accordance with the specifications.
This Steel pipe specifications

The nominal diameter, nominal section area and theoretical weight

Named diameter (MM) Named Sideline (MM2) theoretical weight (KG/M)
1 × 3 8.6 37.4 0.295
10.8 59.3 0.465
12.9 85.4 0.671
1 × 7 Standard type 9.5 54.8 0.432
11.1 74.2 0.580
12.7 98.7 0.774
15.2 139 1.101

Outer diameter*thickness
48*3.5mm
51*3.0mm
between 2200-6500mm