B. COLUMN REINFORCEMENT DETAILS

7 CHAPTER B: COLUMN REINFORCEMENT DETAILS A A D It is the state in which you receive information. By moving the mouse over the design elements on the right, the corresponding parameters on the left are updated. It is the state in which some processing/modification is performed. With Edit active, you select the command, enter the parameter and execute with the mouse on the drawing. It is the state in which an addition is performed. It is the state in which a deletion is performed. The transition from "Edit", "Add", "Delete" to "Info" is done with a right click. α) DIVORCE It is now possible to calculate the influence of reinforcement corrosion on the mechanical characteristics of structural elements (see EPC Annex 7F) by entering the initial and measured diameter. The program automatically calculates the corrosion rate Xcor, the corresponding degradation factors rcor and all the corresponding degraded quantities (resistances and deformations) according to the type of analysis. An important modification introduced by the 3rd revision of CEE is the reduction factors for the mechanical characteristics of structural elements with corroded reinforcement rcor In , Annex 7F proposes indicative values of the softening factor in relation to the corrosion rate Xcor, calculated from the following relationship ΔA A − A D 2 − D 2 X = s = s s , cor s = s , cor cor 2 s s s Where Ds : initial, nominal diameter of the reinforcement Ds,cor : measured diameter of corroded reinforcement The deterioration factors shall be calculated as follows: