EXAMPLE 10. OPTIMIZATION OF REINFORCED CONCRETE CONSTRUCTION

EXAMPLE 10: 'OPTIMISATION' 9 In this form you can define the quantities to be used as additional constraints of the problem by setting a minimum and a maximum value of the material cost, as well as the construction cost of your carrier, and a minimum andmaximum limit for the eigenperiods of the first three eigenmodes. OBSERVATIONS: When performing the optimization process, in addition to the restrictions imposed by the regulatory provisions of the Regulation you have already selected in the sizing, the above General Restrictions will be taken into account. A value of -1 in the above fields means that the corresponding constraint is inactive and does not participate in the optimization process. For this example we define the maximum Material Cost as 300.000 (in currency of the place where the construction will take place) and we do not set any other restriction, i.e. we leave the values -1 in the other fields. This means that the resulting final construction will have the minimum possible material cost, whose value will be less than 300.000€ (Greek currency) and will satisfy the controls of the regulation you have already selected in the dimensioning phase. Using the next command " Deformations ", and in the dialog box that appears: specify an upper limit to the relative movement (drift) of the floors of the carrier. The resulting optimal solution will also obey this constraint. 1.2.2 Unit Cost of Materials Using this command allows you to specify the cost per unit of material for the different materials supported by the program. The materials are shown in the dialog box below: