Post-tensioned precast flat slab structure and construction method of precast flat slab

摘要

The present invention relates to a flat slab construction method using a PC slab to which a flat slab is manufactured in advance in a factory as a precast member and can be assembled and assembled in the field, and which has excellent post-tensioning performance. A preferred embodiment of the present invention is characterized in that (a) is a rectangular plate shape, in which a first galleclining is formed at an upper portion of both ends in the width direction, a second galleclining is formed at a lower portion of both ends in the longitudinal direction, Preparing a main head member in which a third stepped groove is formed in an upper portion of each side and a main-body through hole and a coupling hole are formed through the central portion; (b) installing columns at regular intervals, exposing the main rods to the top and installing the anchors at the top; (c) assembling and fixing the main head part to the upper part of each column such that the main rope and the anchor of the column 10 pass through the through holes and the coupling holes of the main head part, respectively; (d) seating the PC panel so as to engage with the second bracket of the PC panel to the third bracket of the main head part between the main head part and the adjacent main head part; (e) installing a deck between the adjacent PC panels in parallel with the PC panel so that both ends of the deck are seated over the first one of the PC panel clusters.