EARTHQUAKE RESISTANCE REINFORCED STRUCTURE OF EXISTING RC CONSTRUCTION USING STEEL FRAME

摘要

PURPOSE:To obtain an earthquake resisting structure in good reinforcing efficiency by providing a steel frame member attached to right and left or upper and lower symmetrical positions in an opening part, rigidly connecting to the steel frame member one end of an elastically plasticized shearing panel and pin-connecting to a brace, pin-connected to a structural body, the other end of the panel. CONSTITUTION:A frame member 4 of H-shaped steel, fixed by a stud bolt, is provided along a pillar 1 in a tetragonal opening part 3 surrounded by the RC-made pillars 1 and beams 2. Next the frame member 4 horizontally fixes to its vertical directional intermediate position a shear panel 5 pin-connecting to its protruding end part a brace 6 constituted in length almost equal to height of the opening part 3. The brace 6 is vertically positioned and pin-connected to gusset plates 7 fixed in their respective end parts to the upper and lower side beams 2 and 2a. In this way, execution work is facilitated, and its term and expense can be reduced by efficiently performing reinforcement possible to be mutually interpolated.