Development of seismic vulnerability index methodology for reinforced concrete buildings based on nonlinear parametric analyses

Abstract

Graphical abstract

Assessment of the Seismic Vulnerability of a Multi-storey RC Structure with Plan Irregularity: A Case Study

“…For the assessment of the structural vulnerability, the Structural Vulnerability Index (SVI) proposed in [21] is used. To compute the index, the number of plastic hinges formed in the elements of the frame for each performance level should be determined.…”

“…To compute the index, the number of plastic hinges formed in the elements of the frame for each performance level should be determined. A weighting factor (Xi) is chosen for each performance level, as a separate analysis, according to Table 9 [21]. The vulnerability index, defined as a scaled linear combination (weighted average) of performance measures of the hinges in the structural elements, is computed from the performance levels of the components at the end of the nonlinear analysis.…”

“…An importance factor, equal to 1.5 and 1.0, is assigned to columns and beams, respectively. Then, SVI is estimated by the expression below [21].…”

Proposal of in Situ Parameters for the Assessment of Physical Vulnerability to Seismic Events: A Peruvian Case Study

“…Height difference [5], [16], [33] P14 Position within a block [5], [10], [16] P15 Number of staggered floors [5], [16] P16 Structural heterogeneity [16], [17] P17 Difference of the opening area percentage [15], [16] On the other hand, considering that it is desired to achieve an adequate differentiation and classification of the level of physical vulnerability of the dwellings, the parameters were analyzed and selected based on two criteria based on the preliminary collection of parameters and the structural typology of the study area. These selection criteria consist in avoiding that the selected parameter is present or absent in the same way or measure in all the dwellings and also in considering a parameter even when it is little present.…”

“…Similarly, Ortega et al [15] combined the Benedetti-Petrini method with expert judgment and static modeling. Similarly, researchers like Formisano et al [16], Kassem et al [17], Chieffo et al [18], Mosoarca et al [19], [20], and Kappes et al [21] updated the Benedetti-Petrini method considering the construction not only individually, but also as part of a whole. Therefore, parameters such as: structural heterogeneity, elevation interaction, number of staggered floors, building position and percentage difference in opening areas between adjacent facades were added.…”