PPV Consulting

Bari, Italy

PPV Consulting

Bari, Italy

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Palmisano F.,Polytechnic of Bari | Elia A.,PPV Consulting
Engineering Structures | Year: 2015

When dealing with landslide structural damage assessment, considering that the scale of the analysis is territorial, it is both technically impossible and economically inconvenient to perform generalized and, at the same time, detailed investigations. In these cases, it is therefore necessary to implement various levels of detail, depending on the size of the analysis, the objectives, the available time and the economic constraints. This multilevel approach usually seems to be the most effective and useful because it allows to calibrate the available resources.The first level of the analysis, necessarily quick and relatively superficial, should be extended to all the buildings of the territory under study. The objective is to identify those buildings that require a deeper investigation. In this scenario, models based on classical structural mechanics seem to be difficult to apply for a rapid crack pattern diagnosis. This is why a new approach, based on a simple model (i.e. the Load Path Method, LPM), has been proposed by Palmisano and Elia (2013). However, according to Palmisano and Elia (2013) the LPM is very useful for rapidly searching the 'most plausible solution' instead of the exact solution. To find the solution, optimization algorithms are necessary. In this scenario, this article aims to show how the Bi-directional Evolutionary Structural Optimization method by Yang et al. (1999) can be very useful to optimize the strut-and-tie models obtained by using the Load Path Method. © 2014 Elsevier Ltd.


Palmisano F.,Polytechnic of Bari | Elia A.,PPV Consulting
Structures and Architecture: Concepts, Applications and Challenges - Proceedings of the 2nd International Conference on Structures and Architecture, ICSA 2013 | Year: 2013

The increase in the computational capabilities in the last decade has allowed numerical models to be widely used in the analysis, leading to a higher complexity in structural engineering. This is the reason why simple models are nowadays essential because they provide easy and accessible understanding of fundamental aspects of the structural response. Accordingly, this article aims at showing the utility and effectiveness of a simple method (i.e. the Load Path Method) in the interpretation of the behaviour of masonry buildings subjected to foundation settlements due to landslide. Models based on classical structural mechanics are often difficult to apply especially when there is the necessity to perform a rapid vulnerability assessment at the territorial scale. These are the cases in which the Load Path Method shows its utility and effectiveness. © 2013 Taylor & Francis Group.


Palmisano F.,Polytechnic of Bari | Elia A.,PPV Consulting
International Journal of Structural Engineering | Year: 2014

Simple models are nowadays essential because they provide easy and accessible understanding of the fundamental aspects of the structural response. They should be used in order to get a result that, although not yet defined in detail, has the key role of making one aware, from the initial phase of the study, of the overall facet that the final result, derived from numerical analyses, should have. The adoption of simple models is fundamental to be able to check the likelihood of the overall results coming from the application of more sophisticated approaches. Following what above mentioned, this article aims at showing the effectiveness of a simple method (i.e., the load path method) in the interpretation of the behaviour of masonry buildings subjected to foundation settlements due to landslide. © 2014 Inderscience Enterprises Ltd.


Palmisano F.,Polytechnic of Bari | Elia A.,PPV Consulting
COMPDYN 2015 - 5th ECCOMAS Thematic Conference on Computational Methods in Structural Dynamics and Earthquake Engineering | Year: 2015

Even though nowadays the Strut-and-Tie Model (STM) is widely used, several difficulties can be encountered when dealing with the choice of the model that best fits the actual configuration. This paper proposes a step-by-step procedure, based on the Strut-and-Tie Model, for the design of R.C. girder bridge decks subjected to in-plane seismic actions. The aim is to verify the reliability of the common practitioner design attitude to neglect the evaluation of the effects of seismic action on the decks of multi-girder bridges because it is thought that seismic code prescriptions in addition to ultimate limit state reinforcement dimensioning for permanent and variable load, do not justify more accurate analyses aimed to check and/or optimize reinforcement layout.


Palmisano F.,Polytechnic of Bari | Elia A.,PPV Consulting
International Journal of Civil Engineering | Year: 2014

The increase in the computational capabilities in the last decade has allowed numerical models to be widely used in the analysis, leading to a higher complexity in structural engineering. This is why simple models are nowadays essential because they provide easy and accessible understanding of fundamental aspects of the structural response. Accordingly, this article aims at showing the utility and effectiveness of a simple method (i.e. the Load Path Method) in the interpretation of the behaviour of masonry buildings subjected to foundation settlements due to landslide. Models useful for understanding brickmortar interface behaviour as well as the global one are reported. The global proposed approach is also validated by using Bi-directional Evolutionary Structural Optimization method. Moreover, drawing inspiration from a case study, the article shows that the proposed approach is useful for the diagnosis of crack patterns of masonry structures subjected to landslide movements.


Palmisano F.,Polytechnic of Bari | Elia A.,PPV Consulting
International Journal of Earth Sciences and Engineering | Year: 2013

The increase in the computational capabilities in the last decade has allowed numerical models to be widely used in the analysis, leading to a higher complexity in structural engineering. This is the reason why simple models are nowadays essential because they provide easy and accessible understanding of fundamental aspects of the structural response. Accordingly, this article aims at showing the utility and effectiveness of a simple method (i.e. the Load Path Method) in the interpretation of the behaviour of masonry buildings subjected to foundation settlements due to landslide. Models useful for understanding brick-mortar interface behaviour as well as the global one are reported. © 2013 CAFET-INNOVA TECHNICAL SOCIETY. All rights reserved.

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