Insulation scaffold manufacturers believe that the vertical rod is a very important rod in the scaffold, when the horizontal rod deformation will only affect the part of the scaffold. If the pole deformation or settlement is not uniform, it will affect the overall stability of the scaffold.

The insulation scaffold manufacturer believes that because the main rail transmits eccentric load to the stud, the bearing capacity of the stud will be significantly reduced. In order to improve this situation, increase the overall stability of the scaffold and improve the mechanical performance of the vertical rod, the large horizontal rod is placed on the inside of the double row vertical rod, which can not only shorten the span of the large horizontal rod, but also make the bending moment of the two rows of vertical rod inside and outside the scaffold subject to eccentric load in the opposite direction.

The insulation scaffold manufacturer believes that the internal and external row rods are connected and fixed at the node to form the overall frame. Together, the bending moment of the internal and external row rods cancels out each other, reduces deformation, and thus improves the overall stability of the scaffold. This also explains why the bar must be tied to the post. When scaffolding is set up, the poles must be vertical and evenly spaced, otherwise the force on the poles will be inconsistent. When the vertical rod is extended, it must be butt jointed and lap joint is strictly prohibited. Butt studs are axial force transfer without eccentricity. If the studs overlap, the fastener will be cut when the studs transmit force.

The experimental results show that the bearing capacity of butt fastener is more than 2 times that of lap joint and the joint stress is weak. In order to avoid the joint of the adjacent vertical rod within the same step, the joint should be staggered. The insulation scaffold manufacturer believes that the distance between the main rail and the pole limits the transverse deformation of the pole. The smaller the spacing, the better the stability of the pole, the higher the bearing capacity of the scaffold. On the contrary, the greater the step distance, the smaller the bearing capacity of the scaffold. When the step distance increases from 1.2m to 1.8m, the bearing capacity decreases by 26%.

Insulation scaffold manufacturers believe that in the actual operation of scaffolding, people habitually put the small horizontal bar on the main horizontal bar, the main horizontal bar becomes the support of the small horizontal bar, which is unreasonable. The main rail is placed on the inside of the column, with a total length of more than three spans. The load of the small rail is added to the main rail, which not only forces the main rail to bear the load of the small rail, but also increases the load of the fastener connecting the main rail to the riser rod.

Therefore, the bending of the large horizontal bar is similar to the bending of the three-span continuous beam. The small horizontal bar not only bears the load from the foot and hand plates, but also plays a role in restricting the lateral deformation of the internal and external vertical bars and improving the overall stability of the scaffold.

Insulation scaffolding manufacturers believe that scaffolding is a hexagonal frame composed of vertical and horizontal rods, resulting in geometric instability. When an external force strikes from the side, a square becomes a parallelogram, which is called geometric instability. This is detrimental to the safe use of the frame structure and is not allowed in the structure. If a diagonal bar is added to the diagonals of the quadrilateral, the figure of the square becomes a triangle, that is, becomes geometrically stable. In order to improve the defects of scaffolding, it is necessary to add scissors to enhance the longitudinal stability of scaffolding. In fact, even in the absence of longitudinal horizontal forces, scaffolding can produce longitudinal displacement and tilt under vertical loads. However, in the actual work, the load of the scaffold along the length is not uniform, and the material handling and personnel movement are the factors that lead to the tilt and displacement of the scaffold. The supporting member of the scissors on the scaffold bears the pressure (tension) in the frame body, which mainly relies on the friction transmission between the rotary fastener and the rod.