681 research outputs found
On site assessment of Azzone Visconti bridge in Lecco: Limits and reliability of current techniques
No full textPonte Azzone Visconti is a strategic middle age bridge built at north of Milan astride river Adda, along the road towards the centre of Europe passing from the Valtellina, the lordship of Milan and the Serenissima Republic. An on-site assessment of the bridge was carried out starting from the requirement expressed by the municipality of Lecco, consisting in the evaluation of the actual bearing capacity of the infrastructure with reference to the bridge classes defined in the national standards. The investigation used several approaches to quantify the bridge structural safety with reference to the vertical loads due to traffic and accidental seismic events and to highlight any critical issue. The paper is aimed at suggesting the most convenient analysis and maintenance choices, in order to conjugate the very significant historical value of the bridge to a sustainable evolution of its function
On the optimal design of precast structural elements: a proposal
No full text"Optimal design" in Civil Engineering framework is often a word that is used improperly. The lack of definition of an objective function depending on a design variable set, prevents the achievement of a real optimal solution. In practise, an admissible solution becomes the starting point for a "so called" optimization process, even if it only connects mainly with technological aspects. In the literature, several approaches are presented, but they are often focused on the algorithm sacrifying the design effectiveness of results. A careful analysis of the literature shows very few examples of an efficient process for Civil Engineering applications. Even in Precast Industry the choice of a design solution is carried out on experience-based criteria; at most the "best" optimization is performed by comparing a limited set of admissible solutions. In this paper an effective "computer aided optimal design" is suggested. The main idea is to conserve the same approach used by Civil Engineers, but an objective function is first introduced in order to search for an optimal solution throughout the adoption of a suitable algorithm. The proposed method is here applied to two precast structural elements (a column and a pocket foundation), even if it could be better applied to a more complex structural system. A SQP (Sequential Quadratic Programming) algorithm is used: it is regarded as one of the most powerful direct search methods, although it requires a set of starting points in order to find the optimal solution. In the proposed applications the inequalities imposed by Ultimate Limit State design are regarded as constraints. The objective function is the global cost and the final solution takes into account the discretization required by current commercial availabilities. As expected in these cases, the optimal process does not lead to impressive results, although in other applications more significant performances could be expected
STRUTTURA PER LA REALIZZAZIONE DI GABBIE DI ARMATURA PERTRAVI E METODO DI ASSEMBLAGGIO DI TALE STRUTTURA
No full textLa presente invenzione si riferisce ad una gabbia di
5 armatura in tondo per c.a. per la realizzazione di
travi e ad un metodo di assemblaggio di tale struttura
STRUTTURA PER LA REALIZZAZIONE DI GABBIE DI ARMATURA PERPLINTI DI FONDAZIONE
No full textLa presente invenzione si riferisce ad una gabbia di
5 armatura in tondo per c.a. per la realizzazione di
plinti di fondazione, nel seguito denominata struttura
La Vestale 'incesta'
No full textMarcello Salvadore: La Vestale incesta.
Dionysius of Halicarnassus, Pliny the Younger and Plutarch are the sources
of a detailed account of Vestalis incesta’s punishment: they say that she was
sentenced to death. Dionysius adds that there was no after death ritual.
Modern scholars generally accept what the three authors assert. In this article
the author surmises that the Vestalis incesta, together with the parricida, was
not condemned to death: both of them were sentenced to a particular kind
of banishment from the Society
De Lope a Celano: la adaptación italiana de "Los tres diamantes"
No full textAbstract
This paper explores an Italian adaptation of Lope de Vega’s play Los tres diamantes, written in the
second part of the seventeenth century. Its author, Carlo Celano, was a famous writer of opere regie,
i.e., adaptations of Spanish comedies of situation. The analysis focuses on the way in which the
adaptation of the Aristotelian units of space and time leads to a reduction of the characters and a
simplification of the situation, although this is compensated by enriching its ludic component. This
last trait can be also observed in a previous re-elaboration of Lope’s comedy, the scenario of the
Commedia dell’arte titled Il cavaliere dai tre gigli d’oro
Due note critiche
No full textMarcello Garzaniti
Answers to Criticism
The author answers to the critics of M. Capaldo and A.Giambelluca Kossova with the aim to bring the different proposed questions back into the sphere of scientifi c dialogue
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