CONSTRUCTION STRUCTURE AND METHOD OF PC STAIRS BY NON SUPPORT SYSTEM

摘要

PURPOSE: A construction structure and a construction method of PC stairs using a non-supporting system are provided to reduce construction time and costs because a temporary construction work is not required. CONSTITUTION: A construction structure of PC stairs using a non-supporting system comprises walls(110) of a stair case, haunch grooves(120), PC stair units(130), and filler. The haunch grooves are formed on the surface of the walls at the position of stair landings. Protrusions(131a,133a) are integrally formed in the PC stair units through precast concrete. The protrusions are protruded from the ends of stair landings(131,133) and inclined plates(132). The haunch grooves are filled with the filler when the PC stair units are installed.