Skills and points for attention of steel bar binding of floor formwork

The steel bar binding of floor formwork is an important link in building construction, which is related to the stability and safety of floor. This paper will introduce the skills and matters needing attention of floor formwork reinforcement binding, so as to help construction workers better master this technology.

The correct position of steel bar laying

In order to ensure the correct laying of steel bars, we need to start from the distance between the main beam 1/2 plate steel bars. Before the plate steel binding, we need to stretch lines on the surface of the formwork according to the design requirements on the drawings and the spacing of steel bars, and lay the lower iron steel bars, first laying short steel bars.

Reinforcement binding skills

When binding, we use the method of eight-character buckle to fully bind and avoid the movement of steel bars. Before the steel bars are bound, we will put in qualified saddle-shaped iron to support and fix the steel bars. When binding, we will straighten the steel bar with a small white wire to ensure that the spacing between the upper and lower nets is consistent. Reinforced lap joints shall not be less than three lap buckles.

Positioning and binding method of horse stool iron

The position of stool iron is very critical, its lower mouth needs to be placed on the iron bar on the net under the board, while its upper mouth is located under the iron bar on the net under the board. We must ensure that the saddle iron is firmly bound to the upper and lower steel bars on the plate to avoid the saddle iron being directly supported on the bottom formwork. At the same time, the steel bar at the top of the iron stool must be parallel to the steel bar in the same direction on the board to keep it beautiful.

Binding method of floor reinforcement

In order to ensure the stability and safety of the floor, the intersection of the stressed steel bars must be fully tied with the word "eight". At the same time, the number of missing buckles and loose buckles when binding steel bars shall not exceed 10% of the number of tied buckles, and shall not be too concentrated.

Layout method of floor protective layer

In order to ensure the stability and safety of the floor, the spacing between horse and stool shall not exceed1000 mm. At the same time, the spacing of the cushion blocks of the steel bar protection layer of the plate also needs to be arranged in plum blossom shape, and the spacing is1000 mm. The purpose of this is to ensure that the floor is evenly stressed, and it is also convenient for subsequent inspection and maintenance.