progettazione strutturale antincendio 2010
Transcript
progettazione strutturale antincendio 2010
Course Degree Year Semester Credits Fire Safety Structural Design Safety and Protection Engineering 2 2 6 Prof. Ing. Franco Bontempi Teaching Assistant: Ing. Filippo Gentili Email: [email protected] Website: http://francobontempi.org Tel.: +39 06 44585265 Academic Year: 2010/2011 Foundation Courses: • • Science of Constructions. Recommended: Reliability and Structure’s Safety, Structural Analysis and Design. General Objectives: The course approaches safety and structural design in case of fire. The course focuses on steel structure and reinforced concrete. Acquired Skills: • • • • theoretical knowledge of settings of safety, fire action modeling and structural behavior analysis of constructions under fire conditions; skills to conceive, design and verify complex constructions under fire conditions; capacity of judgment and communication of ideas, information, data input, solutions and problems related to structural safety on which is prominent the action of fire; development of research activity focused on general fire safety engineering topics. Topics Setting the questions of structural fire safety Fire action and fire modeling Structural modeling in case of fire Specific features of behavior of structures under fire conditions. Lectures and Exercises hours Detailed Contents The design process. Prescriptive and performance based design. Role and professional responsibility. The national and international standards. Goals of design. Activity and tools of design. Uncertainty, statistical points, probabilistic models. 10 Choose of complexity level of design. Definition of structural crisis. Levels of collapse. Mechanisms of collapse. Structural requirements. Structural robustness. Methods of check. Limit states safety format. Actions on structures. Characterization of imposed actions. Fire. Scenarios. Factors that influence fire developments. 10 Flashover. Fire nominal curve. Parametric curve. Localized fire. Fire zone models. Fire field models. The structural system and its breakdown. Substructures. Onedimensional and two-dimensional structural elements. Fire compartmentation and its meaning. Fundamental mechanical 15 behavior. Geometrical effects. Computer software’s modeling. Finite elements models. Thermal actions. Heat transmission. Conduction. Convection. Radiation. Steel structures: steel behavior and its mechanical characteristic depending on temperature; system of 15 protection; design and verification calculation of elements, connections and structural parts under fire conditions. Reinforced concrete structures: concrete and reinforcement bars behavior and mechanical characteristic depending on temperature; spalling; design and verification calculation of elements and structural parts under fire conditions. Wood structures: behavior of wood and its mechanical characteristic depending on temperature; design and verification calculation of elements, connections and structural parts under fire conditions. Products that confer fire resistance requirements on structures. Modeling of movement of people in case of fire. System of 5 Special Aspects active protection. Risk analysis. Introduction of explosions. Total hours of lectures and exercises 55 whose exercises 25 Other activities of assisted teaching hours Laboratory Seminars 5 Integrative Courses Guided Tours Total hours dedicated to other activities of assisted teaching 5 Total hours: 60 Exam: The exam consists in a spoken test concerning theoretical aspects grounding fire safety analysis and structural design and in a presentation and discussion of an essay that the student arranges with the teaching Staff, by expanding topics examined in lectures and exercises. Numerical evaluations are developed through the codes ANSYS, STRAUS7, NeNASTRAN, ADINA, ABAQUS, FDS, CFAST. Recommended Texts: 1. Ponticelli L., Caciolai M., De Angelis C., “Resistenza al fuoco delle costruzioni.”, UTET (2008). 2. Buchanan A.H.., “Structural Design for Fire Safety.”, John Wiley & Sons (2001). 3. Marsella S., Nasi L., “L’ingegneria della sicurezza antincendio e il processo prestazionale.”, E.P.C. Libri (2006). 4. The SFPE Handbook of Fire Protection Engineering. Third Edition, NFPA (2002). 5. Manuale di Ingegneria Civile, Vol.II, Scienza e Tecnica delle Costruzioni. Ponti., ESAC-Zanichelli. 6. F. Bontempi, S. Arangio, L. Sgambi, Tecnica delle Costruzioni. Basi della progettazione – Elementi intelaiati in acciaio, Carocci Editore, 2008. 7. B. Genova, M. Genova, M. Silvestrini, Sicurezza degli edifici nei riguardi dei fenomeni esplisivi, UTET (2009) Appointments Hours: It is preferable to make an appointment via e-mail or telephone. Department of Structural and Geotechnical Engineering, 3rd Floor, Room 23, Faculty of Engineering (S. Pietro in Vincoli), Via Eudossiana 18, Roma. Tel.: 06 44585265 (internal: 25265), Fax: 06 4884852. E-mail: [email protected] (please, state “Fire Safety Structural Design” as object).