強剛な付帯フレームをもつ耐震壁のスリップ破壊せん断強度

抄録

The objectives of this paper are firstly to propose a formula for estimating the slip shear strength of one-bay one-story shear walls surrounded with reinforced and stiffened frame, which simulate multistory framed shear walls, and secondly to examine its validity. The proposed formula is deduced from forty two specimens in the authors' experiment in which all the specimens failed in slip shear failure. The formula is expressed as follows, Q_<cal>=0.313F_c・t・l+Σ_cQ_y…(1) where the first term of Eq. (1) is the slip shear strength of the wall and the second is the summation of shear forces of the side columns at flexural yielding of their both ends. In order to examine the validity of Eq. (1), twenty two specimens in the authors' and other re-searchers' experiments are analyzed by using Eq. (1) and others' previous formulae for comparison. The analytical results show that Eq. (1) is more adequate than the others' formulae for estimating the maximum strength of the shear walls failed in slip shear failure.