Construction method of super-thick overweight radiation protection concrete cast-in-place beam plate formwork supporting system

Abstract

The invention discloses a construction method of a super-thick overweight radiation protection concrete cast-in-place beam plate formwork supporting system. The construction method comprises a beam plate bottom formwork, primary ridges, secondary ridges, vertical rods, horizontal rods, bottom horizontal rods, vertical inclined rods and horizontal inclined rods; the beam plate bottom formwork adopts 18 mm thick wood plywood; the secondary ridges are 70*70*5 mm square steel pipes; a distance between the adjacent square steel pipes is 150 mm; the primary ridges are 10# I-shaped steel; and a distance between every two adjacent I-shaped steel is 600 mm. The construction method of the super-thick overweight radiation protection concrete cast-in-place beam plate formwork supporting system has the advantages that the bearing capacity is high by creatively adopting the novel plate buckle type formwork supporting system, the construction of anti-radiation concrete with the thickness of 3.0 m can be well met, the risk of harmful cracks caused by insufficient rigidity of a traditional support system is avoided, the distance between the vertical rods and the step pitch of the horizontal rods can provide larger operation space compared with a traditional supporting system, and shuttling construction and material reshipment of workers are facilitated. In addition, assembly is fast, use is convenient, cost is saved, and popularization is worthy.

Description

technical field [0001] The invention relates to the technical field of cast-in-place concrete beam slabs, in particular to a construction method for a formwork support system of super-thick and super-heavy anti-radiation concrete cast-in-place beam-slab formwork. Background technique [0002] In order to increase the research and development capabilities of hospitals, some existing hospitals are usually equipped with linear accelerators. Linear accelerators will generate more gamma rays and X-rays during work, which will cause great harm to the human body. Influenced by the environment, the hospital usually designs a basement machine room with 3.0m thick cast-in-place concrete for the shear wall and roof to place the linear accelerator. m2, higher risk; [0003] At present, in the construction of such ultra-high and ultra-thick radiation-proof concrete, most of them are still using the construction method of fastener type and bowl type traditional formwork support frame. T...

AI Technical Summary

Problems solved by technology

[0002] In order to increase the research and development capabilities of hospitals, some existing hospitals are usually equipped with linear accelerators. Linear accelerators will generate more gamma rays and X-rays during work, which will cause great harm to the human body. Influenced by the environment, the hospital usually designs a basement machine room with 3.0m thick cast-in-place concrete for the shear wall and roof to place the linear accelerator. m2, higher risk;

[0003] At present, in the construction of such ultra-high and ultra-thick radiation-proof concrete, most of them are still using the construction method of fastener type and bowl type traditional formwork support frame. The bearing capacity of a single pole in the type support system is limited. In order to increase the stability of the support during construction, the distance between the poles is usually adjusted to 300×300mm, or even smaller, which seriously wastes materials and brings great inconvenience to on-site construction. , it is difficult for workers to transport secondary materials in such a small space, and it is inconvenient to walk, which seriously reduces the efficacy, and the traditional formwork support system has certain limitations due to the risk of harmful cracks due to excessive bearing capacity;

Images