What should I pay attention to when installing the main floor beam formwork?

Look at the technical disclosure records and main operation procedures.

1) On the concrete cylinder, pop up the axis and horizontal elevation control line of the beam according to the 500mm line and check it.

Install bottom formwork, and arch beam bottom formwork shall be erected according to 3‰ of the whole span length to ensure that the thickness and deflection of floor slab after concrete pouring meet the requirements of drawings. 500mm away from the beam end, leave a cleaning hole on the beam bottom die, and plug it tightly after cleaning up the sundries. Beam formwork adopts the method of side formwork covering bottom formwork, and glue is sandwiched at the corner of formwork.

2) Install beam side formwork, drill opposite screw holes on the side formwork, and then attach diagonal braces for reinforcement.

3) Check the centerline, elevation and section size of the beam, and check whether the formwork connection of adjacent beams and columns is fixed.

4) After the steel bar binding of the beam and plate is completed, insert the counter-pulling screw at half the height of the beam, and cover the part where the counter-pulling screw passes through the beam with a hard PVC sleeve, and the screw spacing is1000 mm..