Restraining Boundary Member Diamncter of:28mm Diameter:616,614; Constructing boundary member Constructing boundary member Length of wall,minimum of stirrup,maximum stirrup 图51剪力速的物造边棕构件 Minimum Dimension of Shear Wall Minimum Dimension of Shear Wall ≤025pfbh Non- 0./) O1AA人， 6 6  Diameter of stirrup: 8mm;  Stirrup spacing value: 100mm（Ⅰ） 150mm（Ⅱ）  Longitudinal reinforcement: range—shaded area A; Area—1.4%， 1.2%， 1.0%； （ special Ⅰ,Ⅰ,Ⅱ shear wall respectively ）  Diameter：  616, 614; Restraining Boundary Member 约束边缘构件 约束 边 缘 构 件 截 面 及 配 筋 Constructing boundary member  Length of wall, minimum of stirrup, maximum stirrup spacing Strengthening portion at the bottom Other locations Seismic Stirrups or tie bar Stirrups or tie bar grade of structure s Minimum amount of longitudinal reinforcements (the greater value should be used) Minimu m diameter (mm) Max. spacing (mm) Minimum amount of longitudinal reinforcements (the greater value should be used) Minimu m diameter (mm) Max. spacing (mm) 1 0.010Ac , 616 8 100 0.008Ac , 614 8 150 2 0.008Ac , 614 8 150 0.006Ac , 612 8 200 3 0.006Ac , 612 （0.005Ac , 412） 6 150 0.005Ac , 412 6 200 4 0.005Ac , 412 6 200 （150） 0.004Ac , 412 6 250 （200） Constructing boundary member Minimum Dimension of Shear Wall  Strength of concrete ≥C20；  Thickness of shear wall Seismic intensity region Embedded column Non-embedded column Ⅰ,Ⅱ Strengthening region at the bottom H/16 200 h/12 200 The rest H/20 160 h/15 180 Ⅲ, Ⅳ Strengthening region at the bottom H/20 160 H/20 160 The rest H/25 160 H/25 180 Non￾seismic design all H/25 160 H/25 180 1. Non-seismic action： 2）Seismic action： Shear-span ratio>2.5： Shear-span ratio≤2.5： . V 0 25 f b h w c c w w0   ( . ) w c c w w0 RE 1 V 0 20 f b h    ( . ) w c c w w0 RE 1 V 0 15 f b h    c c w0 M V h   Minimum Dimension of Shear Wall