Common problems and safety control of formwork support system

Common problems of erection:

1. The spacing of vertical poles does not meet the design requirements, and the spacing is too large

2. The upper and lower vertical poles of the floor are not on the same vertical line, which is unfavorable to the stress of the poured beam slab

3. The vertical pole is not vertical, which seriously affects the mechanical performance of the vertical pole

4. The joint of the upright does not meet the design requirements

5. Neglecting the function of the sweeping rod

6. The single vertical pole at the bottom of the beam deviates from the center line of the beam formwork

7. The setting of cross bracing does not meet the requirements

8. The setting of the horizontal bar does not meet the requirements

9. The foundation of the upright does not meet the requirements

10. Formwork support system and scaffold connection

Strengthen the safety control of formwork support system:

1. Material control: all fasteners shall be subject to sampling inspection and test as required, and can be put into use only after they are qualified. They shall be strictly managed according to relevant specifications to prevent fake and unqualified fasteners from entering the site and being used. Steel pipes must be strictly inspected before use and shall be sampled according to regulations

It can be put into use after passing the inspection and test.

2. Design control: there must be design calculation and erection scheme for fastener type steel pipe formwork support system -- strength, rigidity and stability of upright pole, anti sliding force of fastener, strength and disturbance checking calculation of horizontal pole, foundation bearing capacity of upright pole or floor supporting upright pole

Bearing capacity.

3. Construction management: technical management and safety management. The formwork support system shall be designed before construction. The operation shall be carried out in strict accordance with the technical scheme of formwork design and shall not be changed at will.

4. Strength control: when the formwork is removed, the concrete strength must meet the requirements of code for construction and acceptance of concrete structure engineering.

Safety control: 1. Check the design calculation of the support system and the construction drawings of the support erection, and the approval procedures shall be complete. 2. Carry out technical disclosure, and the responsibility shall be assigned to the person. The disclosure procedures shall be complete. 3. The formwork support materials must be strictly controlled. 4. Strengthen the supervision and inspection during the erection process. 5. Attach great importance to the high support formwork

6. Establish the acceptance system of the formwork support system 7. Strengthen the observation during the use of the formwork support 8. Control the load on the support 9. Report for approval when the formwork support system is removed.