By Ing. M. R. Mehdi (Mehdizadeh Kabuli)
The basis of the notation adopted in this weblog is that employed in BS8110 and CP110.
The basis of the notation adopted in this weblog is that employed in BS8110 and CP110.
| Ac | Area of concrete |
|---|---|
| Ac1 | Area of core of helically reinforced column |
| As | Area of tension reinforcement |
| A's | Area of compression reinforcement |
| A's1 | Area of compression reinforcement near more highly compressed column face |
| As2 | Area of reinforcement near less highly compressed column face |
| Asc | Total area of longitudinal reinforcement (in columns) |
| Ash | Equivalent area of helical binding (volume per unit length) |
| Asl | Area of longitudinal reinforcement provided for torsion |
| As prov | Area of tension reinforcement provided |
| Asreq | Area of tension reinforcement required |
| Asv | Cross-section area of two legs of link reinforcement |
| δAs | Area of individual tension bar |
| δA's | Area of individual compression bar |
| Atr | Transformed concrete area |
| a | Dimension (as defined); deflection |
| ab | Distance between centers of bars |
| ac | Distance to centroid of compression reinforcement |
| at | Distance to centroid of tension reinforcement |
| b | Width of section; dimension (as defined) |
| bt | Breadth of section at level of tension reinforcement |
| bw | Breadth of web or rib of member |
| C | Torsional constant |
| cmin | Minimum cover to reinforcement |
| D | Density (with appropriate subscripts) |
| Dc | Density (i.e. unit weight) of concrete at time of test |
| d | Effective depth to tension reinforcement |
| d' | Depth to compression reinforcement |
| dmin | Minimum effective depth that can be provided |
| d1 | Diameter of core of helically bound column |
| dc | Depth of concrete in compression (simplified limit-state formulae) |
| Ec | Static secant modulus of elasticity of concrete |
| Es | Modulus of elasticity of steel |
| e | Eccentricity; dimension (as defined) |
| ea | Additional eccentricity due to deflection in wall |
| ex | Resultant eccentricity of load at right angles to plane of wall |
| ex1 | Resultant eccentricity calculated at top of wall |
| ex2 | Resultant eccentricity calculated at bottom of wall |
| F | Total load |
| Fb | Tensile force due to ultimate load in bar or group of bars |
| Fh | Horizontal component of load |
| Ft | Tie force |
| Fv | Vertical component of load |
