A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
SEISMIC PERFORMANCE ASSESSMENT OF RC BUILDINGS ACCOUNTING FOR STRUCTURAL AND NON-STRUCTURAL ELEMENTS
Among the natural hazards, earthquakes are paramount due to their impact on civil structures worldwide. The considerable direct economic losses (property losses) due to earthquakes in conjunction with social impact and indirect economic losses have prompted a great interest in performance assessment of the civil structures to future seismic events. Therefore, performance evaluations beyond the traditional goal of life safety, are required to rightly estimate expected losses. A key ingredient of this evaluation process is the fragility, that describes the probability of failure to meet a performance objective depending on demand on the system, providing the link between seismic hazard and building losses estimation. A correct fragility evaluation necessitates the development of reliable nonlinear analysis models that are able to simulate the behavior of structures from the onset of damage through collapse. Therefore, proper prediction of the nonlinear behavior and formulation of analytical models are essential prerequisites for a reliable evaluation of structural fragility and, then, of seismic performance and risk assessment of Reinforced Concrete (RC) structures. Moreover, within the performance-based approach, it is also essential to understand which mechanisms/elements have the higher influence on seismic performance depending on the analyzed performance level. A lot of work should still be done towards this direction, especially for existing under-designed or non-ductile structures. With under-designed or non-ductile terms it will be referred to structures designed for gravity loads only or according to obsolete seismic and technical codes. A contribution towards this direction is carried out in this work. Starting from the analysis of typical deficiencies of non-ductile RC frames and the definition of performance levels of interest, this work aimed to contribute to PBEE framework with (i) a critical overview on analysis methodologies and modeling approaches of the salient components of RC frames, namely ...
SEISMIC PERFORMANCE ASSESSMENT OF RC BUILDINGS ACCOUNTING FOR STRUCTURAL AND NON-STRUCTURAL ELEMENTS
Among the natural hazards, earthquakes are paramount due to their impact on civil structures worldwide. The considerable direct economic losses (property losses) due to earthquakes in conjunction with social impact and indirect economic losses have prompted a great interest in performance assessment of the civil structures to future seismic events. Therefore, performance evaluations beyond the traditional goal of life safety, are required to rightly estimate expected losses. A key ingredient of this evaluation process is the fragility, that describes the probability of failure to meet a performance objective depending on demand on the system, providing the link between seismic hazard and building losses estimation. A correct fragility evaluation necessitates the development of reliable nonlinear analysis models that are able to simulate the behavior of structures from the onset of damage through collapse. Therefore, proper prediction of the nonlinear behavior and formulation of analytical models are essential prerequisites for a reliable evaluation of structural fragility and, then, of seismic performance and risk assessment of Reinforced Concrete (RC) structures. Moreover, within the performance-based approach, it is also essential to understand which mechanisms/elements have the higher influence on seismic performance depending on the analyzed performance level. A lot of work should still be done towards this direction, especially for existing under-designed or non-ductile structures. With under-designed or non-ductile terms it will be referred to structures designed for gravity loads only or according to obsolete seismic and technical codes. A contribution towards this direction is carried out in this work. Starting from the analysis of typical deficiencies of non-ductile RC frames and the definition of performance levels of interest, this work aimed to contribute to PBEE framework with (i) a critical overview on analysis methodologies and modeling approaches of the salient components of RC frames, namely ...
SEISMIC PERFORMANCE ASSESSMENT OF RC BUILDINGS ACCOUNTING FOR STRUCTURAL AND NON-STRUCTURAL ELEMENTS
De Risi, Maria Teresa (author)
2015-03-31
De Risi, Maria Teresa (2015) SEISMIC PERFORMANCE ASSESSMENT OF RC BUILDINGS ACCOUNTING FOR STRUCTURAL AND NON-STRUCTURAL ELEMENTS. [Tesi di dottorato]
Theses
Electronic Resource
Italian , English
SEISMIC PERFORMANCE ASSESSMENT OF RC BUILDINGS ACCOUNTING FOR STRUCTURAL AND NON-STRUCTURAL ELEMENTS
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