개구부 형태 및 연결슬래브에 따른 전단벽의 거동특성

Abstract

Many engineers find the way of improving the old building’s structural behavior in the remodeling project which is performed using artificial openings for merging two houses. This test was performed to verify the characteristics of coupling beams according to shape of the openings. One of the test specimens had rectangular shape openings, another one had circular shape openings, and the other one had coupling members only as slabs. Three specimens with openings had 23% ratio of opening area to total wall area. A solid type specimen which had no opening area showed shear failure. In the case of CW-RBS which had rectangular shape openings, cracks were developed in coupling beam significantly. CW-CS which had circular opening failed in shear showing development of diagonal cracks at the wall toes and wall mid-height. It was believed that degradation of wall strength was under the control regardless of the openings and coupling beam-wall connection area.