Formwork supporting process of cylindrical frame column formwork: before installation, the formwork shall be assembled carefully according to the diameter of the column designed in the drawing
Formwork supporting process of cylindrical frame column formwork: before installation, the formwork shall be assembled carefully according to the diameter of the column designed in the drawing and the height of the bottom of the column top beam. On the ground beam or floor, according to the column section size and template thickness, the location line of the installation template is popped up first, and then the installation is carried out.
The specific construction process is as follows: concealed acceptance of steel bars → positioning of elastic lines → cleaning of column roots, formwork in place → closing of column formwork and reinforcement with steel strips → adding 4 square strips of 50mm × 100mm around → fixing square strips of steel pipes → adjusting the verticality of column formwork → blocking column feet with mortar → pouring concrete → removing formwork → cleaning of formwork.
The concrete cylindrical sub-mold shall be installed in dislocation. When the height of the cylindrical formwork exceeds 3m, the formwork shall be installed in dislocation. First close with iron wire, then reinforce with fixed steel strip. The spacing between fixed steel strips shall not be greater than 300mm. A steel strip shall be added at the lap joint.
After the formwork is closed and reinforced, the circular plane at the bottom of the formwork shall be 5mm ~ 10mm away from the ground and caulked with concrete. Horizontal installation of steel belt. When installing the steel strip, use a steel ruler to measure the template. Set 3~4 small nails around the same height of the template. When installing the steel strip, place the steel strip on the nails to maintain the installation level of the steel strip. When installing the screws, the tightening degree of each screw should be consistent, so as to ensure the consistency of the tightness of the steel belt and the safety of construction.
The cylindrical wood mold needs to be reinforced by the upper and lower interfaces when supporting the mold. A steel belt can be added to the upper and lower interfaces of the two formwork for reinforcement. The steel belt must cover the reinforcement interface horizontally. The concrete pouring of the cylindrical formwork can be conducted at one time within 7m, and the concrete pouring for more than 7m shall be conducted in two times. The second pouring can be conducted after the second pouring for 30min ~ 60min.
Protect the template. In order to protect the formwork after the construction of the cylindrical formwork, 4 50mm × 100mm wooden square shall be added around the formwork, and the wooden square shall be reinforced with steel pipes, with the distance between the upper and lower parts of the steel pipes being 50cm ~ 150cm.
In the prosperous city of Chongqing, building steel structure has always played an important role. If you want to build a safe and durable building steel structure, then you must find a professional production company.
