- The main structural parts are divided into three categories: roof, wall, column and foundation engineering.
- The main structural reinforcement types include: frame, steel, pull bolts and other auxiliary materials.
- Specific reinforcement requirements are handled according to general examples. The required data for each sub-project are as follows:
- The spacing between shelf support poles (formwork support project for a frame floor with a height of 4 meters) is 1 meter to 1.1 meters, and the thickness of the roof concrete is within 18 centimeters to ensure that there is no problem with vertical support.
- A two-way horizontal steel pipe support (referred to as a horizontal rod) is set up on the beam bottom frame, and a horizontal rod support is set up on the horizontal rod (when the frame beam section is between 250×500 and 500×900), the horizontal rod spacing is 40 cm ( When the beam cross-section is larger than 300×600 (including 300×600), vertical supports with a spacing of no more than 80 cm should be provided under the horizontal poles at the bottom of the beam, and there should be longitudinal stress-bearing steel pipes (referred to as beam backing).
- Beam side plate reinforcement: When the beam cross-section is greater than or equal to 300×500, the beam side plates must be equipped with clamping steel pipes and top square timbers must be added at the vertical lower end of the clamping steel pipes.
- If the beam cross-section is greater than 300×850, the side plates must be reinforced with pull bolts, and the longitudinal spacing cannot be greater than 700.
- The spacing between the beam bottom formwork keels, that is, the square timbers, should be kept within 10 cm. When the width of the beam bottom exceeds 600, the spacing between the beam bottom square timbers should be 5 cm.
- Roof plate reinforcement method: When the thickness of the roof plate is between 10 cm and 18 cm, the horizontal rod support of the roof plate should be kept between 1 meter and 1.1 meters. When the plate thickness exceeds 15 cm, the horizontal steel pipe should be equipped with double positioning supports (referred to as double positioning supports). The steel pipe is refueled and jacked up with screws).
- Spacing between square logs on the roof: When the thickness (concrete) is between 10 cm and 18 cm, the spacing between square logs cannot be greater than 15 cm.
- The intersection points of all beam side plates and the top plate must be connected vertically with straight wooden longitudinal buckles.
- Specific data of wall formwork reinforcement project: when the floor height is within 4 meters and the wall thickness is between 300-1000, the wall bolt size must be maintained at 45 cm × 45 cm; when the wall thickness exceeds 350 , The cross-section of the wall bolts cannot be less than 14mm and the positioning dimensions remain unchanged.
- After the tension bolts of the wall formwork are reinforced, a single-point scissor support with an angle of no more than 40 degrees should be added on either side of the wall. A scissor support should be installed at a distance of 1.5 meters between the molds and two-way fasteners should be used. connect.
