3results about How to "Save turnover materials" patented technology

The utility model relates to a concrete column non-dismantling concrete formwork which comprises a non-dismantling prefabricated formwork, a non-dismantling concrete formwork body of a columnar structure is defined by the non-dismantling prefabricated formwork body, and the middle of the non-dismantling concrete formwork body is in a cavity shape. The formwork connecting steel plate strip is embedded in the disassembly-free prefabricated formwork, and the protruding parts of the formwork connecting steel plates are connected with each other; the rear sealing template is arranged between the two adjacent disassembly-free prefabricated templates; the locking device is used for locking the multiple disassembly-free prefabricated formworks and comprises transverse main reinforcing ribs and first split bolts, and the transverse main reinforcing ribs are arranged on the side faces of the disassembly-free concrete formworks and tightly attached to the rear sealing formwork; the first split bolt penetrates through the middle of the disassembly-free concrete formwork and sequentially penetrates out of the rear sealing formwork and the transverse main reinforcing ribs, the two opposite transverse main reinforcing ribs are locked, and the disassembly-free prefabricated formwork is tightly pressed. The non-dismantling concrete formwork for the concrete column is convenient to install, free of dismantling, labor-saving, high in transverse horizontal force resistance and capable of improving stability.

This invention discloses a formwork and construction method for a partially ultra-high cast-in-place beam in a large prefabricated factory building, relating to the field of building construction technology. It includes angle irons installed on both sides of a precast beam. Bolt holes are provided on one side surface of the angle irons, and fixing holes are provided on the other side surface. Square steel is installed above the angle irons, and a bottom beam formwork is installed above the square steel. Stirrups are installed above the bottom beam formwork, and the stirrups are filled with cast-in-place reinforcing steel. Side forms are provided on the surfaces of the stirrups, and square timber is installed on the side of the side forms away from the stirrups. The method employs a formwork support system where angle irons are mechanically anchored to the sides of the already installed high-altitude precast beam as load-bearing supports, and square steel is placed on the angle irons as a load-bearing frame. The anchor holes at the fixing points between the angle irons and the precast beams are L-shaped, allowing for variable elevation of the angle irons, ensuring both safe formwork support and smooth demolding.

The invention relates to a silo slip-form construction method which is achieved through a silo slip-form construction device, the slip-form construction device comprises a slip-form formwork, a jack, a lifting frame cylinder and a supporting rod, the jack is arranged at the top of a lifting frame, and the lifting frame penetrates through the supporting rod and slides up and down on the supporting rod; the construction method has the beneficial effects that a scaffold does not need to be erected in a large range, the construction efficiency is improved, the construction time is saved, the workload of constructors is reduced, the construction cost is saved, the economic value of silo slip-form construction is improved, a slip-form structure does not need to be repeatedly erected, and the construction cost is reduced. The whole silo wall is constructed through the slip form, the construction quality is good, the construction integrity of the silo wall is good, and the construction error-tolerant rate is low.