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A nonlinear static analysis of a masonry church by NOSA-ITACA

The last tutorial (Tutorial4) about a non linear static analysis of a masonry church performed by the NOSA-ITACA code, is now available at http://www.nosaitaca.it/software/. We perform the analysis supposing the structure made of two masonry-like materials with zero tensile strength and bounded compressive strength and a linear elastic material.

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NOSA-ITACA code tutorials

Now at website http://www.nosaitaca.it/software/

you can download tutorials where it is shown how to

perform modal analysis, linear static and non linear static analysis by NOSA-ITACA code. Enjoy them !

Otherwise you can watch them on YouTube at

https://youtu.be/t_Pjg8_hUQk

https://youtu.be/aTcxPWg8pLE

https://youtu.be/2jvjubSfyG8

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NOSA-ITACA code now runs on UBUNTU 18.04

Running NOSA on Ubuntu 18.04 is not (yet) officially supported, but you may use the package for Ubuntu 16.04, as indicated at

http://www.nosaitaca.it/software/

See also the prevoius post about it ! Enjoy !

 

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Paper "The influence of environmental parameters on the dynamic behaviour of the San Frediano bell tower in Lucca"

This paper aims at assessing the influence of environmental parameters on the modal characteristics of age-old masonry constructions. The results of a long-term ambient vibration monitoring of the San Frediano bell tower in Lucca (Italy) are reported. The tower, dating back to the 11th century, has been fitted along its height with four triaxial seismometric stations, which were left active for about one year.

https://doi.org/10.1016/j.engstruct.2017.10.045

Enjoy !

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Abstract Submission Extended Civil-Comp 2019 Special Session CC16. Structural Health Monitoring and Model Updating for Heritage Structures

Dear colleague,

the abstract submission deadline for

CIVIL-COMP 2019

The Sixteenth International Conference on Civil, Structural and Environmental Engineering Computing

16-19 September 2019 Riva Del Garda Congress Centre, Lake Garda, Italy

http://www.civil-compconf.com/

is extended to 6th May 2019.

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Call for Abstract Submission to Civil-Comp 2019 Special Session CC16. Structural Health Monitoring and Model Updating for Heritage Structures

Dear Colleagues,

You are cordially invited to submit your abstract to our Special Session CC16. Structural Health Monitoring and Model Updating for Heritage Structures for The Sixteenth International Conference on Civil, Structural & Environmental Engineering Computing (Civil-Comp 2019).

Date & Location: 16-19 September 2019, Riva del Garda Italy.

Abstract submission deadline: 15 April 2019.

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Modal analysis of historical masonry structures: Linear perturbation and software benchmarking

https://www.sciencedirect.com/science/article/pii/S0950061818322116 The mechanical behavior of masonry materials has a common feature: a nonlinear behavior with high compressive strength and very low tensile strength. As a consequence, old masonry buildings generally present cracks due to permanent loads and/or accidental events. Therefore, the characterization of the global dynamic behavior of masonry structures should take into account the presence of existing cracks.

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Call for Abstract - Frontiers in Built Environment, Earthquake Engineering

Dear colleagues, Given the recent establishment of the so-called Urban Seismology field and the lack of dedicated journals for the topic, together with Professor Maria Todorovska (University of Southern California, USA), Dr. Riccardo Maria Azzara (INGV, Italy), Dr. Michele Palermo and Dr. Simonetta Baraccani (University of BOlogna, Italy), we would like to establish a network of researchers dealing with this very challenging topic.

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Modal analysis performed by NOSA-ITACA code

The following picture shows a screenshot of the NOSA-ITACA desktop enviroment during a modal analysis. In particular the first and the third mode shape of the San Frediano bell Tower in Lucca (Italy) are shown. The structure is discretized into 45641 eight-node brick elements (element no. 8, NOSA-ITACA element library) with 136923 degrees of freedom. For more details sees: R.M. Azzara, G. De Roeck, E. Reynders, M. Girardi, C. Padovani and D.

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NOSA-ITACA: a free finite element software for structural analysis

NOSA-ITACA is a software product of the Mechanics of Materials and Structures Laboratory of ISTI-CNR, distributed via the http://www.nosaitaca.it/software/ website.
The package includes SALOME v8.3.0, and is available for Ubuntu 14.04 and 16.04.
NOSA-ITACA enables you to conduct both linear and nonlinear static analyses and modal analyses.
NOSA-ITACA can be used to study the static behavior of masonry buildings of historic and architectural interest and model the effectiveness of strengthening operations.

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