Rigid connection structure between upper precast concrete column and lower precast concrete column ...
(10) US 2018/0320363 Al
(22) 08.09.2017
(43) 08.11.2018
(57 Provided is a rigid connection structure including: a lower PC column having column concrete, a lower column plate disposed on top of the column concrete, and a plurality of lower column reinforcing bars buriedly arranged vertically in the interior of the column concrete and having upper ends penetrated into the lower column plate in such a manner as to be exposed to the outside; and an upper PC column having column concrete, an upper column plate disposed on top of the column concrete, and a plurality of upper column reinforcing bars...
