System for joining precast concrete columns and slabs

Details System for joining precast concrete columns and slabs System for joining precast concrete columns and slabs

1997-06-05

1998-09-22

Kent, Christopher

Static structures (e.g., buildings)

With component having discrete prestressing means

Slab or panel construction

522368, 522369, 52251, 52263, 52283, 525831, 525851, 5274214, 5274712, E04C 508

Patent

active

058097120

ABSTRACT:
A precast concrete system is provided that consists of columns and slabs joined together in one point. Each corner of the slab is equipped with a steel pipe mounted on a steel plate that is attached at and covers the top surface of the column. Each column is equipped with high tensile steel reinforcement strands protruding at the top end to penetrate the steel pipes of the four corners of four slabs, through the holes in the steel base plate attached at the bottom surface of the next column above it, and through the pipes implanted vertically at the lower section of the next column. The implanted pipes are in line with the holes on the base plate. The four steel pipes of four slabs meeting on one column are tied together with high tensile steel wire rope through three holes drilled horizontally at three places of the pipe length: upper, middle, and lower sections. The pipes of the slab corners and the gaps between pipes and slabs are filled with a special mortar cement that hardens fast. Then a special mortar cement is injected to the implanted pipes through each pipe's opening on the side surface of the column.

REFERENCES:
patent: 3562979 (1971-02-01), Ali-Oglu
patent: 3613325 (1971-10-01), Yee
patent: 4081935 (1978-04-01), Wise
patent: 4330970 (1982-05-01), Bonink

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