Abstract: A grille beam structure construction method for a semiconductor factory is configured to perform construction of grille beams without installation of a separate beam mounting the grille beams and to simplify a joint between the grille beams by using studs for mounting of the grille beams and by integrating grille beam members to each other by bolt-fastening. The method includes installing columns, installing studs between the columns at predetermined intervals longitudinally and transversally, mounting grille beams above the columns and the studs, wherein each of the grille beams includes an rectangular-frame-shaped edge beam and the edge beam has a plurality of fastening holes, and matching the fastening holes between the grille beams and inserting bolts into the fastening holes, thereby integrating the grille beam.

Abstract: A hybrid permanent anchor is proposed. The hybrid permanent anchor includes: a fixed body disposed between a compression part and a tension part and coupling the compression part and the tension part to each other; the tension part coupled to a front end of the fixed body and transmitting tension to the permanent anchor when tensile stress is generated; the compression part coupled to a rear end of the fixed body and transmitting compressive force to the permanent anchor when compressive stress is generated; a PC steel strand coupled to a rear end of the compression part and having a protective pipe thereon; and an anchor head part fixing the permanent anchor to a structure.

Abstract: In accordance with the present invention, an elevator core structure includes an elevator frame (120) separated from a main frame (110) and extending in a longitudinal direction of the main frame (110), and a guide frame (130) formed on an inner surface of the elevator frame (120). Here, the elevator frame (120) may be formed by stacking a plurality of frame segments (121), and a guide frame unit (131) forming the guide frame (130) may be mounted to one surface of each of the frame segments (121). The present invention exhibits an effect of early-constructing the elevator frame regardless of a construction schedule of a main frame of a building.

Abstract: A hybrid permanent anchor is proposed. The hybrid permanent anchor includes: a fixed body disposed between a compression part and a tension part and coupling the compression part and the tension part to each other; the tension part coupled to a front end of the fixed body and transmitting tension to the permanent anchor when tensile stress is generated; the compression part coupled to a rear end of the fixed body and transmitting compressive force to the permanent anchor when compressive stress is generated; a PC steel strand coupled to a rear end of the compression part and having a protective pipe thereon; and an anchor head part fixing the permanent anchor to a structure.

Abstract: In accordance with the present invention, an elevator core structure includes an elevator frame (120) separated from a main frame (110) and extending in a longitudinal direction of the main frame (110), and a guide frame (130) formed on an inner surface of the elevator frame (120). Here, the elevator frame (120) may be formed by stacking a plurality of frame segments (121), and a guide frame unit (131) forming the guide frame (130) may be mounted to one surface of each of the frame segments (121). The present invention exhibits an effect of early-constructing the elevator frame regardless of a construction schedule of a main frame of a building.

Abstract: The present invention relates to one-body type for both sanitary spoon and chopsticks.