Plastic Hinge - Performance Categories#

The SSD task task_plastic_hinge_performance_categories_small Plastic Hinge - Performance Categories supports a global and central input of performance categories. Each category represents a set of performance criteria used to indicate specific damage levels or states associated with a plastic hinge. These performance categories are independently evaluated during the pushover analysis.

The order of the performance criteria within a category determines their performance indices. The index highlights the severity of a damage level in ascending order, starting from 1.

The quantitative limit strain values, which define a threshold for a criterion within a category (i.e., a specific damage state), can be set for each plastic hinge individually. However, the order of these assigned limit strains must correspond to an increase in the damage level. For more information please see the Plastic Hinge task.

When the specified limit strain is reached within the hinge during the pushover analysis, the corresponding criterion will be marked as reached, and can be used to indicate its position on the performance evaluation curves. For more info about the performance evaluation checks see the Pushover Analysis - Bridge Piers task.

Note

Since it is important to maintain the order of the performance criteria within a category on a global level, the task “Plastic Hinge - Performance Categories” can only be added once to the project.

Performance Categories#

The first table supports the definition of performance categories. Upon adding a new category to the table, it requires assignment of a label consisting of up to four letters, along with an optional title.

Performance Criteria#

The second table supports the definition of performance criteria within categories. After adding a new criterion, the combobox in the first column allows for an assignment of the criterion to a previously defined category. The criterion is then automatically grouped in the table based on the selection.

Each criterion is defined by a mandatory label of up to 4 letters and an optional title. The order in which criteria are added to a category determines their performance indices. Furthermore, the order within a category can be adjusted using the “up” or “down” icons.