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1. (WO2018219196) PRECAST COLUMN BASE JOINT AND CONSTRUCTION METHOD THEREFOR

Pub. No.:    WO/2018/219196    International Application No.:    PCT/CN2018/088162
Publication Date: Fri Dec 07 00:59:59 CET 2018 International Filing Date: Fri May 25 01:59:59 CEST 2018
IPC: E02D 27/42
Applicants: CHINA STATE CONSTRUCTION ENGINEERING CORPORATION LIMITED
中国建筑股份有限公司
CHINA STATE CONSTRUCTION ACADEMY CORPORATION LIMITED
中建工程研究院有限公司
Inventors: GUO, HaiShan
郭海山
QI, Hu
齐虎
LIU, Kang
刘康
LI, LiMing
李黎明
FAN, Xin
范昕
TIAN, LiDa
田力达
GENG, Jiao
耿娇
WANG, DongYan
王冬雁
Title: PRECAST COLUMN BASE JOINT AND CONSTRUCTION METHOD THEREFOR
Abstract:
A precast column base joint, comprising an upper prefabricated reinforced concrete column (1), a lower reinforced concrete foundation (2), column anchoring longitudinal ribs (3), grouting sleeves (4), and foundation anchoring reinforcing bars (6) that are correspondingly combined in a vertical direction. The foundation anchoring reinforcing bars (6) and the column anchoring longitudinal ribs (3) are connected by means of a seam filling material (7) with which the grouting sleeves (4) are filled; the seam between the reinforced concrete foundation (2) and the prefabricated reinforced concrete column (1) is also filled with the seam filling material (7); each of the foundation anchoring reinforcing bars (6) comprises a vertical part (8) and a horizontal part (9); the vertical part (8) is divided into an upper anchoring section (81) extending out of the upper surface of the reinforced concrete foundation (2), and a central unbonded section (82) and a lower anchoring section (83) embedded in the reinforced concrete foundation (2); an isolation sleeve (10) used for isolating the central unbonded section (82) from concrete is provided on the central unbonded section (82); the top surface of the isolation sleeve (10) is flush with the upper surface of the reinforced concrete foundation (2). Also provided is a construction method for a precast column base joint.