Core-Pulling Transfer Device and Construction Method for Reverse Demolition of Reinforced Concrete Structures

摘要

The disclosure provides a core-pulling transfer device for reverse demolition of reinforced concrete structures and a construction method. The device comprises temporary supports, long-stroke hydraulic jacks and steel crossbeams, wherein the temporary supports are supported on bottom surfaces of bottom crossbeams of the reinforced concrete structure, a beam end through hole is formed in each end, connected with a force-transmitting structure column, of each bottom crossbeam, two long-stroke hydraulic jacks are symmetrically arranged on both sides of each force-transmitting structure column, core-pulling holes are formed in upper end sides of demolition floor structure columns, one steel crossbeam is in clearance fit with each core-pulling hole, both ends of each steel crossbeam extend out of the corresponding core-pulling hole, lower surfaces of the long-stroke hydraulic jacks are fixedly connected to a foundation, and upper surfaces of oil cylinders of the long-stroke hydraulic jacks are propped against lower surfaces of the corresponding steel crossbeams after moving up and penetrating through the corresponding beam end through holes. The disclosure can quickly carry out vertical load transfer of the reinforced concrete structure, smoothly transfer vertical force, and achieve a safe reverse demolition construction process.