METHOD FOR MANUFACTURING PRESTRESSED PRECAST CONCRETE SEGMENT BUILT-UP BEAM WITH LONG SPAN AND CONSTRUCTION METHOD OF PRECAST CONCRETE STRUCTURES

摘要

Disclose a kind of independent large-span prestressed precast concrete beam of combined type of manufacture, collection section is divided in width and length direction and applies backward pull respectively to section, and construction method precasting construction is manufactured using the large-span prestressed precast concrete beam of independent combined type by identical. According to the present invention, manufacture the large-span prestressed precast concrete Liangqi of independent combined type and have width b, height h, total length L) and (step includes four sections of manufacture, whereinThe half of each section of total length with half overall width; The step of manufacturing two components, on the length direction that these parts are integrated with each other, with the half of total length having the same and overall width, one section of every knot, length direction and Tensing are installed in the first tendon of installation in casing by application prestressing force and fix the first tendon; With two components of installation step by spacer rear deck the assembly Duan Yilie on the length direction of fastening section and bolt assembly by multiple tower cranes, wherein the screw passes through the part. ;The 2014 of copyright KIPO submissions