The adequacy of walls with high ductility level is checked by comparing the design shear forces, V e , found in accordance with the conditions given in TBDY 188.8.131.52 , with the shear strength of the wall section, V r , described in TBDY 184.108.40.206 . The section (Control column) related to TBDY 220.127.116.11 of the report shown below will be explained.
A ch gross cross-sectional area of the solid wall or each curtain segment in the tie-beam curtain
f ctd , the design tensile strength of concrete
f ck , characteristic compressive strength of concrete
ρ sh , volume ratio of wall horizontal web reinforcement
f ywd , design yield strength of wall transverse reinforcement
The shear strength of the wall sections, V r , is calculated by TBDY Equation 7.17 .
The Design Shear Force, V e of the walls found by TBDY 18.104.22.168 must meet the conditions given in TBDY Equation 7.18 .
The V e value shown in the report and under the "Control" column is the design shear force value calculated using TBDY 22.214.171.124 . V r value is the shear strength of the wall section given in TBDY Equation 7.17 . V eMax value is the limit values given in TBDY Equation 7.18 . If the curtain with gaps (tie-beam curtain) is V eMax = 0.65A ch (f ck ) 1/2 , if the curtain without gap is V eMax = 0.85A ch (f ck ) 1/2 .
If there is a (*) sign next to the curtain names under the curtain column in the report [ for example P103 (*) ], it means the curtain with space (tie beam). If there is no sign next to the curtain names, it means the curtain without spaces.
If the design shear force, V e value, shear strength of the shear sections are smaller than V r value and V eMax value, shear safety of the shear is provided.