Abstract: The present invention relates to a press-fit nut for an assembly, a press-fit nut-bolt assembly, and a method of constructing a steel-concrete composite structure using same, wherein a process is simple and a base material does not become deformed during an installation process. The press-fit nut-bolt assembly of the present invention includes a press-fit nut, a stud bolt, a counter nut, and a washer. The press-fit nut includes: a head part formed in a typical nut shape; and a press-fitting part that is formed extending from one of the two surfaces of the head part so as to have an outer diameter less than that of the head part, and that is inserted, through press-fitting, into a base material (M) that is an object requiring fastening. A hollow having threads is continuously formed in the head part and the press-fitting part.

Abstract: The present invention relates to a press-fit nut for an assembly, a press-fit nut-bolt assembly, and a method of constructing a steel-concrete composite structure using same, wherein a process is simple and a base material does not become deformed during an installation process. The press-fit nut-bolt assembly of the present invention includes a press-fit nut, a stud bolt, a counter nut, and a washer. The press-fit nut includes: a head part formed in a typical nut shape; and a press-fitting part that is formed extending from one of the two surfaces of the head part so as to have an outer diameter less than that of the head part, and that is inserted, through press-fitting, into a base material (M) that is an object requiring fastening. A hollow having threads is continuously formed in the head part and the press-fitting part.

Abstract: The present disclosure relates to a connecting core for column-beam joint, the connecting core being able to secure excellent rigidity through a simple process without welding. To this end, a connecting core for column-beam joint includes: a closed-section intermediate column; a diaphragm; and internal reinforcing members, in which slit for inserting the internal reinforcing members are formed at the diaphragm, and the internal reinforcing members inserted in the diaphragm are combined with the intermediate column. According to the present disclosure, high rigidity is secured, as compared with the related art, when a closed-section column and a beam are connected. Further, a closed-section column and a beam can be connected without welding, so the process can be shortened, connecting become easy, and quality is also uniform.

Abstract: The present disclosure relates to a connecting core for column-beam joint, the connecting core being able to secure excellent rigidity through a simple process without welding. To this end, a connecting core for column-beam joint includes: a closed-section intermediate column; a diaphragm; and internal reinforcing members, in which slit for inserting the internal reinforcing members are formed at the diaphragm, and the internal reinforcing members inserted in the diaphragm are combined with the intermediate column. According to the present disclosure, high rigidity is secured, as compared with the related art, when a closed-section column and a beam are connected. Further, a closed-section column and a beam can be connected without welding, so the process can be shortened, connecting become easy, and quality is also uniform.