Deduction
1. Advantages
1: The carrying 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 flexibility. Because the length of the steel pipe is easy to adjust and the buckle is easy to connect, it can adapt to a scaffolding of various plane and facade buildings and structures.
3: Compared with economical, simple processing, low investment costs; if you carefully design the geometric size of the scaffolding, pay attention to increasing the conversion rate of the steel pipe, 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;
Tightening the torque should not be less than 40N · m, and should not be greater than 65N · m;
2: The rods at the node are partially connected, and the load and internal force are transmitted by resistance to the anti -slip power, which reduces its bearing capacity;
3: The connection quality of the deduction node is significantly affected by the quality of the deduction itself and the workers' operation.
3. Adaptability
1: Construct various forms of scaffolding, templates and other supporting frames;
2: assembled well frame;
3: Putting a slope, a shed, a stand, and other temporary structures,
4: Make other types of scaffolding, enhance rods;
4. Establish requirements
The steel pipe buckle scaffold should be paid to the ground flat and solid, set the base and pad, and have reliable drainage measures to prevent stagnant water from being soaked in the foundation.
According to the setting of the wall rod and the load size, the open distance between the open double -row scaffolding rod is generally 1.05 ~ 1.55m, and the steps of the masonry scaffolding are generally 1.20 ~ 1.35m. It is 1.80m and the vertical distance is 1.2 ~ 2.0m. The height is 34 ~ 50m. When it is set for a single row, the vertical distance is 1.2 ~ 1.4 m, and the vertical distance is 1.5 ~ 2.0m. Allow the height to 24m.
The vertical horizontal lever should be set on the inside of the vertical rod. The length should not be less than 3 spans. The vertical horizontal rod can be connected or overlap. If the docking deduction method is adopted, the docking fasteners should be interlaced; if the connection connection is used, the overlap length should not be less than 1 m, and the three rotation fasteners should be set in an equal distance.
The main node of the scaffolding (that is, the vertical level, the vertical horizontal rod, and the horizontal horizontal rod three rods tightly) must be set at a horizontal horizontal rod with a right angle buckle and it is strictly prohibited to remove it. The center distance of the two right -angle buckles at the main node should not be greater than 150mm. In the double -row scaffolding, the extension length of the horizontal horizontal rod against the end of the wall should not be greater than 0.4 times the horizontal distance of the vertical rod, and it should not be greater than 500mm; The need for equal distance settings, the maximum distance should not be greater than 1/2 of the longitudinal distance.
The operating layer's handboard should be covered and stable, and leave the wall 120 ~ 150mm; narrow and long footplans, such as stamping steel foot plates, wooden scripts, bamboo skewers, etc., should be set on three horizontal horizontal rods. When the length of the foot plate is less than 2m, two horizontal horizontal rod supports can be used, but the ends of the panel should be reliably fixed with it to prevent tilt turning. The wide -type bamboo scoop panel should be paved with its main bamboo muscle vertically in the direction of the vertical horizontal rod, and the docking tideline is used. The four corners are fixed on the vertical horizontal rod.
The bottom or pad should be set at the bottom of each standing rod. The scaffolding must be set with vertical and horizontal sweeping rods. The vertical sweeping rod should be fixed on the vertical rod that is not more than 200mm from the base of the base. The horizontal sweeping rod should also be fixed on the vertical pole under the vertical sweeping rod. When the foundation of the vertical rod is not at the same height, the longitudinal sweeping rod must be extended to the low place to fix the two spans and the vertical rod. The height difference should not be greater than LM. The distance from the vertical pole axis above the slope should not be less than 500mm.
Door steel pipe
1. Advantages
1: Standardized geometric size of door steel tube scaffolding.
2: Reasonable structure and good force, make full use of steel strength, and have high load capacity.
3: It is easy to install and demolish, high efficiency, time -saving, safe and reliable, and economical applications during construction.
2. Disadvantages
1: There is no flexibility in the size of the frame. Any change in the size of the frame must be switched to another type of door frame and its accessories
2: Cross support is easy to break at the center hinge point;
3: The stereotypes are heavier,
4: The price is more expensive
3. Adaptability
1: Structural scaffolding
2: support racks for beams and plates (bearing vertical loads);
3: Structural activity workbench;
4. Establish requirements
1. The foundation of the door -type scaffold must be consolidated, and the drainage slope should be done to prevent water from the water
2. The sequence of the door -type scaffolding is: basic preparation → placement of the pad → placement of the base → vertical two -榀 single shelf door frame → installation of the intersection → install the scooter Essence
3. The door -type steel tube scaffolding should be set up from one end to the other end. The direction is opposite to the next step.
4. Each step is set up, and the two -tap door frame should be inserted on the end point base, and then the intersection is fixed, locks the lock, and then sets up the door frame. And lock.
5. The scaffolding must be set up with a reliable connection with the building.
6. Scissors should be set on the outside of the door buckle steel tube scaffolding, and both vertical and vertical should be set up.
