Reinforcement calculation of oblique section of frame column
10.5.1 When fiber composite strips are used for shear reinforcement of reinforced concrete frame columns, they shall be pasted into ring hoops, and the fiber direction shall be perpendicular to the longitudinal axis of the column.
10.5.2 For columns reinforced with ring hoops, the shear bearing capacity of the oblique section shall comply with the following formula:

In the formula: V——Design value of shear force after component strengthening (kN);
Vc0——the shear bearing capacity of the oblique section of the original member before reinforcement (kN), calculated according to the provisions of the current national standard "Code for Design of Concrete Structures" GB 50010;
Vcf——the increase value of the bearing capacity of the oblique section of the column after the fiber composite material is strengthened (kN);
ψvc——the shear strength reduction coefficient related to the stress condition of the fiber composite material, to be adopted according to the specified value in Table 10.5.2;
ƒf——the design value of tensile strength of fiber composite material used for shear reinforcement (N/mm²), determined by multiplying the design value of tensile strength specified in Article 4.3.4 of this code by the adjustment factor of 0.5;
Af——the full cross-sectional area of the fiber composite hoop arranged at the same cross-section (mm²);
nf——the number of layers of fiber composite hoop;
bf, tf—respectively the width of the fiber composite ring hoop and the thickness of each layer (mm);
h——column section height (mm);
sf—the center-to-center spacing of the hoop (mm). Table 10.5.2 Shear strength reduction coefficient ψvc value
 
Note: 1 λc is the shear-span ratio of the column; for the frame column λc=Hn/2h0; Hn is the net height of the column; h0 is the effective height of the column section.
2 Intermediate values determined by linear interpolation.

Reinforcement calculation of large eccentric compression members
10.6.1 When fiber-reinforced composite materials are used to strengthen reinforced concrete columns under large eccentric compression, the fiber composite materials shall be pasted on the concrete surface at the edge of the tension zone of the member, and the fiber direction shall be consistent with the direction of the longitudinal axis of the column.
10.6.2 For the reinforcement of columns under large eccentric compression with rectangular section, the bearing capacity of the normal section shall comply with the following formula:
 
In the formula: e——the distance from the axial pressure point to the resultant force point of the longitudinal tensile reinforcement As (mm);
ei - initial eccentricity (mm);
e0——the eccentric distance (mm) of the axial pressure to the center of gravity of the section, which is taken as M/N; when the second-order effect needs to be considered, M should be determined according to Article 5.4.3 of this code;
ea——additional eccentricity (mm), determined according to the maximum dimension h of the section in the eccentric direction: when h≤600mm, ea=20mm; when h＞600mm, ea=h/30;
a, a'—the distance from the resultant force point of the longitudinal tension reinforcement and the resultant force point of the longitudinal compression reinforcement to the near edge of the section (mm);
ƒf——The design value of tensile strength of fiber composite materials (N/mm²), which should be adopted according to Table 4.3.4-1, Table 4.3.4-2 and Table 4.3.4-3 of this code according to its variety.