8B. ANALYSIS PART 2

CHAPTER 8B 'ANALYSIS' 50 In the section: • Where " Control node ", we define the number of the control node on the basis of which the resistance curve will be calculated. • In the option " Active Wall Fillings " we select whether we want to take into account in the analysis the wall fillings that we have included in our construction. • In " Number of steps ", we specify the maximum number of steps (analyses) that each inelastic analysis will perform. Pushover is an iterative process that is terminated, when no other limit is set, as soon as the operator turned into a mechanism. The number of steps is an upper maximum limit in order to avoid too many steps before the vector becomes a mechanism. The default value is 200. • The " Maximum movement " option as a percentage (%) of the total height of the building is second way set an upper limit on the number of steps before the carrier becomes a mechanism. The process stops as soon as the maximum movement of the control node exceeds this percentage. The default value is 3% of the total height of the building. • The next parameter " Lambda range (%) " refers to the load factor λ. At each step, the load factor λ and the minimum value shall be calculated for each element of all the structural elements determines the one on which the plastic joint will be created. With a default value of 0 in this parameter, the program selects a minimum value, i.e. only one element, even if there are values from other elements that are very close to it. Setting a value other than 0 e.g. 10% means that any λ values that are less than or equal to the minimum value λ plus 10% will be taken into account in this step, resulting in more than one plastic joint being created at the same time. • Assume that in the first step of the pushover the minimum value λ is 1 and corresponds to a the specific structural element on which the plastic joint will be created. By setting a value of 10% in this parameter, in elements with λ values from 1 to 1.1, plastic joints will also be created in them, simultaneously with the first element.