Search results for "GIR"
showing 10 items of 370 documents
Serviceability of segmental concrete arch-frame bridges built by cantilevering
2013
The evaluation of the safety degree in service life for a segmental prestressed concrete bridge built by the cantilever method presents different aspects related to strength, deformability, durability and to effects of time-dependent phenomena as creep and shrinkage. The case-study of a prestressed concrete frame bridge with inclined piers is presented, built by cantilevering, with precast segments. By considering the fundamental items of design and construction stages, the implications due to the arch effect in this static scheme are investigated, with respect to an equivalent bridge with a final scheme of continuous girder on vertical piers. The birth of a significant value of axial force…
Interaction between Longitudinal Shear and Transverse Bending in Prestressed Concrete Box Girders
2017
In box girder bridges, the quantity and distribution of reinforcement to be put in concrete elements of sections can be evaluated only by considering the deformation of the cross section in addition to the longitudinal analysis of the static scheme, establishing the entire state of stress of box sections. This leads to a need to evaluate the interaction between internal forces obtained by the global analysis and the ones obtained by the local analysis of the cross sections. The frame effect implies the elastic deformation of slabs and webs, whereas eccentrically applied loads lead to cross-section distortion with the loss of the box shape. Hence, the reinforcement is strongly influenced by …
Simplified Procedure for Evaluating the Effects of Creep and Shrinkage on Prestressed Concrete Girder Bridges and the Application of European and Nor…
2013
The effects of time-dependent phenomena on concrete prestressed girder bridges are investigated. The study concerns the case of bridges built directly in their final configuration and that of bridges built by a sequence of stages in which geometry, restraints, and loads vary until the final configuration is achieved. An analytical approach based on the principles of aging linear viscoelasticity and the age-adjusted effective modulus method is followed. The paper has two aims: the first is to provide an efficient and simplified tool for the evaluation of the structural response in the early stages of design; the second is to compare the results of the analyses on actual cases of bridges when…
Il regime giuridico degli enti cattolici negli accordi spagnoli del 1979 e nell'accordo italiano di revisione concordataria del 1984
2010
Attraverso l'esame della disciplina degli enti della Chiesa cattolica negli accordi concordatari spagnolo(1979) e italiano(1984), si analizzano le analogie e anche le significative differenze che in parte trovano spiegazione tenendo conto del diverso significato che nei due ordinamenti assume il concetto di ecclesiasticità.
The Magical Treasure and Its Guardians
2012
On 17 June 1499, John and Agnes Clerk from Great Ashfield as well as their young daughter Marion had to answer charges before the consistory court of Norwich. The ecclesiastical court had learned that the girl worked as a healer and a soothsayer, and that she claimed she could locate buried treasures. Marion admitted everything immediately, even with an air of self-importance. She said that she got her abilities from God, the Virgin Mary and from the fairies. The ecclesiastical judge seems to have amused himself asking the girl about the details. The fairies, Marion explained, were little people who gave her information whenever she needed it. They did not believe in Jesus and the Holy Spir…
An 18-month-old girl with hoarseness, stiff joints and subcutaneous nodules
1998
Tertulia historica, y apologetica, o examen critico, donde se averigua en el Chrisòl de Monumentos antiguos ... lo que contra Fray Geronimo Savanarol…
1790
Sig. [A]-G4, H1 Reclams. - Cristus a la port.
Hieronymi Cardani ... Opera omnia : tam hactenus excusa, hic tamen aucta & emendata, quàm nunquam aliàs visa, ac primùm ex Auctoris ipsius Autogra…
1663
L'obra completa són 10 vol. Retrat calc. de l'autor al verso de l'anteport. Algun grav. xil. amb figures geomètriques al text Caplletres grav., frisos, vinyetes Sign.: ā4, ē4, ī4, ō4, ū4, āā4, A-OOo6, PPp4 Anteport. Port. a dues tintes Text a dues col. Text amb postil·les marginals Reclams
Passive sampling of PAHs in indoor air in Nepal
1999
PAHs were sampled in ten homes in the Makwanpur region, Nepal. SPMDs and moss bags (Sphagnum girgensohnii) were used as passive samplers. Soot particles on the SPMD surfaces were also analyzed for PAHs. The overall PAH concentrations in SPMDs were significantly higher than those in moss bags. Total PAH mean concentrations of ten houses were 535μg/g lipid for SPMDs and 7.2 μg/g moss (dw) for moss bags. Ratios of phenanthrene/anthracene in indoor SPMDs and particulate matter varied from 2.9 to 3.5 and ratios of fluoranthene/pyrene varied from 1.1 to 1.4. The values for moss bags were respectively 1.7–3.6 and 0.8–2.4. These ratios indicate that the PAHs are from combustion origin. The PAH conc…
La formazione iniziale degli insegnanti attraverso la pratica del microteaching.
2014
Le metodologie che fanno uso della videoregistrazione sono sempre più utilizzate nella formazione professionale dei futuri insegnanti. La professionalità del docente richiede oltre alle conoscenze teoriche o disciplinari, la capacità di mobilitare i saperi per organizzare risposte efficaci a problemi complessi e rilevanti e la capacità di riflettere sul proprio agire. È necessario che durante il percorso universitario l’insegnante in formazione acquisisca specifiche competenze e capacità autoriflessive. Questo contributo descrive una metodologia per la creazione di esperienze formative centrate sull’utilizzo della videoregistrazione e per la raccolta di dati sull’effetto del video sull’appr…