225results about How to "Reduce manpower expenditure" patented technology

The invention discloses a cast-in-place concrete large-size core formwork hollow floor anti-floating structure and a construction method. The cast-in-place concrete large-size core formwork hollow floor anti-floating structure comprises a formwork and a support, wherein an upper-layer reinforcing mesh and a lower-layer reinforcing mesh are arranged on the formwork, a plurality of core formworks are arranged between the upper-layer reinforcing mesh and the lower-layer reinforcing mesh, anti-floating steel bars are arranged between the upper-layer reinforcing mesh and the core formworks, the anti-floating steel bars are horizontally placed on the plurality of core formworks, vertical rods are perpendicular to the anti-floating steel bars mutually, positioning pieces are arranged on one endsof the vertical rods towards the anti-floating steel bars in an extending mode, threaded ends are arranged on the other ends of the vertical rods towards the formwork in an extending mode, bearing rods are arranged on the outer walls of the vertical rods, a plurality of through holes are formed in the formwork, the plurality of through holes are in one-to-one correspondence with the vertical rods,and connecting pieces are detachably arranged on the through holes. According to the cast-in-place concrete large-size core formwork hollow floor anti-floating structure and the construction method,the problems that in the prior art, a large-size core formwork hollow floor structure floats upwards in construction, and a large amount of labor is consumed for core formwork fixing and iron wire cleaning in a traditional construction technology are solved.