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Lateral in-plane seismic response of confined masonry walls: From numerical to backbone models
Highlights Possibilities for application of CM and benchmark experimental tests are presented. Friction model with non-associated plasticity is used for the frame-masonry interface. Effect of wall characteristics on different engineering demand parameters is studied. A new strength formulation of CM walls which includes flexural failure is presented. Backbone models for in-plane response of CM walls in shear and flexure are proposed.
Abstract Confined masonry (CM) is a widely used solution for buildings in developing countries and has potential for worldwide application when considering its economic and constructive advantages. Although a large background of experimental testing of CM walls is available, numerical studies are further needed to extend the existing knowledge and derive analytical rules to adopt in design codes. In this work, a parametric numerical study is performed, aimed to characterize the lateral in-plane response of CM walls under different variables and to establish a dataset for comparison of engineering demand parameters, towards the proposal of predictive models. Benchmark walls tested under lateral in-plane loading are used to calibrate a finite element modelling approach for pushover analysis. Based on the results of the parametric study, a formulation and charts are proposed to respectively estimate the lateral resistance and displacement capacity of CM walls with features similar to the ones used as benchmark.
Lateral in-plane seismic response of confined masonry walls: From numerical to backbone models
Highlights Possibilities for application of CM and benchmark experimental tests are presented. Friction model with non-associated plasticity is used for the frame-masonry interface. Effect of wall characteristics on different engineering demand parameters is studied. A new strength formulation of CM walls which includes flexural failure is presented. Backbone models for in-plane response of CM walls in shear and flexure are proposed.
Abstract Confined masonry (CM) is a widely used solution for buildings in developing countries and has potential for worldwide application when considering its economic and constructive advantages. Although a large background of experimental testing of CM walls is available, numerical studies are further needed to extend the existing knowledge and derive analytical rules to adopt in design codes. In this work, a parametric numerical study is performed, aimed to characterize the lateral in-plane response of CM walls under different variables and to establish a dataset for comparison of engineering demand parameters, towards the proposal of predictive models. Benchmark walls tested under lateral in-plane loading are used to calibrate a finite element modelling approach for pushover analysis. Based on the results of the parametric study, a formulation and charts are proposed to respectively estimate the lateral resistance and displacement capacity of CM walls with features similar to the ones used as benchmark.
Lateral in-plane seismic response of confined masonry walls: From numerical to backbone models
Marques, Rui (author) / Pereira, João M. (author) / Lourenço, Paulo B. (author)
Engineering Structures ; 221
2020-07-07
Article (Journal)
Electronic Resource
English
Lateral in-plane seismic response of confined masonry walls: From numerical to backbone models
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