슬래브가 있는 넓은 보-기둥 접합부의 전단거동

Abstract

An experimental investigation was conducted to study the behavior of high-strength RC wide beam-column joints with slab subjected to reversed cyclic loads under constant axial load. Six half scale interior wide beam-column assemblies representing a portion of a frame subjected to simulaled seismic loading were tested, including three specimens without slab and three specimens with slab. The primary variables were compressive strength of concrete(fCk=285, 460kgf/c.m3), the ratio of the column-to-beam flexural capacity(Mr=2Mc/2Mb ; 0.77 ~ 2.26), extended length of the column concretedd ; 0, 12.5, 30cm), ratio of the column-to-heam width(b/H ; 1.54, 1.67). Test results are shown that (1) the behavior of specimen using high-strength concrete satisfied for required minimum ductile capacity according to increase Che compressive strength, (2) the current design code and practice for interior joints(type 2) are apply to the wide beam-high strength concrete column.