Search results for "Building"
showing 10 items of 1985 documents
Hand verification for flexural strength of existing R.C. floors subject to degradation phenomena
2015
Abstract In the present paper, a simplified model for hand verification of the flexural and shear strength of existing corroded T beams cast in place of lightened R.C. orthotropic slabs forming floors is presented and discussed. Diffused and pitting corrosion on steel bars, compressive concrete strength degradation and concrete bond strength degradation are included in the model. The original contribution of the paper is evaluation of the flexural and shear strength considering both the cases of strain compatibility and absence of compatibility and considering the main parameters governing the corrosion process. An arch-resistant model for the calculus of the flexural and shear strength of …
THE MACHINE OF THE WATER IN PALERMO INTRA-MOENIA - TECHNOLOGIES FOR THE RECOVERY OF TE CITY SCENE
2009
Lo studio tratta il recupero di un vuoto urbano nel centro storico di Palermo. L’ipotesi illustrata riguarda la progettazione di una “macchina dell’acqua” (un canale sulle tracce dell’antico fiume Kemonia) pensata per rappresentare e realizzare le istanze di una nuova società che intende costruire nuovi ambienti sottraendoli al degrado ed alla speculazione. Uno spazio per accogliere eventi effimeri, ma anche per comunicare la storia e la cultura della città. The study characterizes “the element water”, like architectonic material and principle base of the city planning, for the recovery of Palermo intra-moenia and for the valorization of the cultural resources and acclimatizes them local. T…
Decoupling Office Energy Efficiency From Employees' Well-Being and Performance: A Systematic Review
2019
Energy efficiency (i.e., the ratio of output of performance to input of energy) in office buildings can reduce energy costs and CO2 emissions, but there are barriers to widespread adoption of energy efficient solutions in offices because they are often perceived as a potential threat to perceived comfort, well-being, and performance of office users. However, the links between offices' energy efficiency and users' performance and well-being through their moderators are neither necessary nor empirically confirmed. The purpose of this study is to carry out a systematic review to identify the existing empirical evidence regarding the relationships between energy-efficient solutions in sustainab…
Historical buildings: luminescence dating of fine grains from bricks and mortar
2010
In the framework of a research program aimed to define the chronology of the structures of the architectonic complex of San Francesco alla Collina (Paternò, Italy), two luminescence dating techniques were applied: Thermoluminescence (TL) on terracotta bricks and Optically Stimulated Luminescence (OSL) on mortars. Dating a historic building through the age of its bricks can be sometimes complex, for the possible gap between the age of the bricks themselves and that of the structure. Considering that the laying of mortar is contemporary to the construction, the principal objective of the work here presented is the verification of the possibility of solving chronological uncertainties of speci…
Historical Buildings in protected areas in Italy: a re-design study of a rural building
2017
Historic and traditional buildings, including rural ones, are a territorial resource in Europe and constitute an integral part of the European’s cultural heritage. However they are often characterized by poor energy performances and a large potential for energy retrofit actions. On the other hand, the hardest part of retrofitting such buildings is the limited invasiveness that such actions need to have on the historical and heritage value of the building itself. The paper describes an experience of re-design of an existing rural building located in Sicily, inside the ancient Greeks “Valley of the Temples”. An energy audit was performed on the building, its energy uses thoroughly investigate…
Empowering team leadership and safety performance in nuclear power plants: A multilevel approach
2013
Abstract Despite the large body of work on team leadership, hardly any literature has dealt with team leadership in safety performance settings. The goal of the present study is to analyze how team leader behaviors influence team members’ safety performance in nuclear power plants. For this purpose, an empowering leadership approach was assessed. We consider a multilevel model in which safety performance is divided into three types of behaviors. The sample was composed of 479 workers in 54 groups from two Spanish nuclear power plants. The results suggested that leaders’ empowering behaviors generated higher safety compliance behaviors and higher safety participation behaviors by team member…
A person-environment-fit-model for temporary organizations - Antecedents for temporary working settings
2021
Abstract Projectification has led to the widespread use of temporary organizations (TOs) in many industries, but the various factors that determine successful work by employees in TOs are unexplored. We argue that organizations have different degrees of temporariness depending on the following five TO dimensions: temporal duration, nature of the task, team composition, hierarchy, and coordination. Considering the TO dimensions and varying degrees of temporariness, we propose a person-environment (P-E) fit model. The model comprises three levels – organizational-, group-, and job-oriented – and relates personal attributes to the TO dimensions. We contribute to theory by developing a set of p…
Pitfalls in the Development of Agent-Based Models in Social Sciences: Avoiding Them and Learning from Them
2019
The references on the principles and methodology for developing agent-based models of social phenomena usually describe general principles and illustrate the process using worked examples, but seldom focus on the pitfalls and errors that make practical model building a tortuous and difficult task. This chapter contains a discussion of the positive and negative aspects of my personal experience in a PhD work on simulation of large scale social conflict. The purpose will be to describe the process from the initial plan to the final dissertation, analyze the pitfalls and their overcoming in terms of principles of model development, and summarize the ideas that I found useful for practical deve…
HOW TO FACE THE INCOMPLETENESS OF THE URBAN ARCHAEOLOGICAL BUILDINGS
2015
The relationships between archaeological buildings and contemporary city can be observed through material and immaterial features (topographical, morphological, social, and cultural aspects) and can be considered a privileged point of view not only for the Past, but also for the Present and the Future of an urban settlement and its inhabitants. Several studies, carried out by researchers of different disciplines, have focused on this issue that is very relevant considering the permanence of archaeological vestiges as one of the distinctive identitymaking factors of many European cities. Every archaeological building has a unique consistence. The relationships with the current surroundings a…
Favignana bio-calcarenite: technological culture, knowledge and recovery
2022
Favignana Island, the biggest one among Egadi islands, is well known for its deposits of calcarenite, which has been extracted and used since ancient times. The landscape of the Island is shaped by the widespread presence of quarries that mark the seaside as well. Furthermore, the constant presence of dry-stone walls, made of calcarenite, and of the characteristic architecture of buildings, represents a hallmark for the rest of Egadi islands as well, making it clear how important the presence of this material has been for the architectural and technological culture of these places.Calcarenite itself, exported by this island, is still a constituent material of many buildings in the western p…