In addition to the characteristics of stable structure and large bearing capacity, some structural measures must be added to enhance the support capacity of the portal scaffold, which is also the key to ensure the safety of the portal scaffold. Before the construction of high formwork with height above 4.5 m, the construction unit must prepare a special technical scheme. The technical party shall include the design, erection and demolition of formwork and its branches, concrete pouring method, pouring process observation and safety control requirements, etc. No construction shall be carried out without a technical plan.

In addition, the lightweight portal scaffold products make it easy to disassemble and assemble, which also reduces the labor intensity of construction workers. The design of scaffold tends to be light, and internal and external dynamic steel pipes are selected. The amount of steel consumables in the production process is more than 40% less than that of traditional steel pipe scaffold. Therefore, in the aspect of construction disassembly, the labor intensity of operators is reduced, so that they are not so tired in the operation, their mental condition is relatively good, and the safety factor rises naturally.

The installation of portal scaffold has its own standard, which should be neat and uniform, and has its stable support system in two mutually vertical directions. Before the erection, it should strictly set out according to the design requirements on the site. During the installation of portal frame support, a 48 x 3.5 steel pipe horizontal tie rod is required to be added for each layer of portal frame to fasten it. The vertical and horizontal cross bracing is arranged according to the spacing less than 6m. The supporting force of the portal steel pipe scaffold mainly depends on the overall force of the support frame. In order to play this overall effect, we need to rely on the vertical and horizontal horizontal pull rods and vertical and horizontal cross braces to connect the thin portal frames. If you do not set vertical and horizontal horizontal pull rod and vertical and horizontal cross bracing, it is as easy to break as chopsticks, and the gantry support is easy to collapse, which must be eliminated.

The extension length of adjusting bolt of adjustable bracket (base) should not be more than 200 mm. When the extension length of adjusting bolt of adjustable bracket (including base) is more than 200 mm, a horizontal pull rod can be added to fix it. Many operators do not understand this point, screw out the bolts for a long time, and do not take measures to strengthen, so that the force of the gantry is greatly reduced, which often leads to collapse accidents.

In connection construction, the tightening torque of all kinds of connecting fastener bolts of portal frame is between 40 ~ 65 N-M, in order to prevent the component from bearing force effectively or being damaged. After the erection, random sampling inspection with wrench is carried out, and the unqualified ones must be re tightened until they are qualified. Do not allow the lack of connecting components or bolts not tight or after the installation of random disassembly, so that the portal scaffold deformation and damage. The supporting pole should be vertical and the horizontal pole should be flat.

The vertical pole shall be made of full-length steel pipe as far as possible. If the connecting pipe is needed, the joint shall be staggered and not within the same step. The vertical pole mouth must be butted according to the specification to ensure the verticality of the frame. The joints of two adjacent longitudinal horizontal bars shall be staggered with each other, and the connection port must be butted according to the specification.

Accident rescue measures in case of scaffold collapse accident, do not blindly rescue. If there is an emergency endangering the safety of electricity, immediately cut off the power supply, organize rescue personnel to take effective measures to rescue the injured first, and then rescue the property. Only by paying attention to these matters and taking these structural measures to strengthen the support of the portal scaffold, can the portal scaffold play an effective and safe role and prevent the operators from falling from height to the maximum extent.