IMPROVEMENT OF STRENGTH REDUCTION FACTOR RELATED TO OPENING HEIGHT FOR RC SHEAR WALLS
RC耐震壁の開口高さによる耐力低減率の高精度化

Suguru SUZUKI, Yasushi SANADA, Hong LIU
2016 Journal of Structural and Construction Engineering (Transactions of AIJ)  
This study aims at improving a strength reduction factor r 3 related to opening height for RC shear walls in the AIJ design standard. FEM analyses for RC shear wall specimens with vertically aligned openings were conducted to evaluate contributions of the wall components to the overall lateral strengths. As a result, the flexural resistances of the partial walls divided by the openings were overestimated by r 3 , while the shear resistances of the beams between the openings agreed with those by
more » ... r 3 . Therefore, a new strength reduction factor new r 3 was proposed on the basis of a flexural strength reduction index for this type of wall. Consequently, the estimations for the ultimate strengths of the above specimens using new r 3 showed good agreements with the experimental strength reductions.
doi:10.3130/aijs.81.883 fatcat:wlm472myw5d5vd3piwfvb2rvqy