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Fire Design of Steel Structures


Fire Design of Steel Structures

EC1: Actions on structures; Part 1-2: Actions on structure exposed to fire; EC3: Design of steel structures; Part 1-2: Structural fire design
2. Aufl.

von: Jean-Marc Franssen, Paulo Vila Real

62,99 €

Verlag: Ernst & Sohn
Format: EPUB
Veröffentl.: 10.10.2016
ISBN/EAN: 9783433607022
Sprache: englisch
Anzahl Seiten: 450

DRM-geschütztes eBook, Sie benötigen z.B. Adobe Digital Editions und eine Adobe ID zum Lesen.

Beschreibungen

This book explains and illustrates the rules that are given in the Eurocodes for designing steel structures subjected to fire. After the first introductory chapter, Chapter 2 explains how to calculate the mechanical actions (loads) in the fire situation based on the information given in EN 1990 and EN 1991. Chapter 3 is dedicated to the models which represent the thermal actions created by the fire. Chapter 4 describes the procedures to be used to calculate the temperature of the steelwork from the temperature of the compartment and Chapter 5 shows how the information given in EN 1993-1-2 is used to determine the load bearing capacity of the steel structure. Chapter 6 presents the essential features that characterize the advanced calculation models, for thermal and mechanical response. The methods used to evaluate the fire resistance of bolted and welded connections are described in Chapter 7. Chapter 8 describes a computer program called `Elefir-EN? which is based on the simple calculation model given in the Eurocode and allows designers to quickly and accurately calculate the performance of steel components in the fire situation. Chapter 9 looks at the issues that a designer may be faced with when assessing the fire resistance of a complete building. This is done via a case study and addresses most of the concepts presented in the previous chapters. For this second edition the content has been revised and extended. The book contains some new sections, e.g. a comparison between the simple and the advanced calculation, as well as additional examples.
INTRODUCTION Relations between different Eurocodes Scope of EN 1993-1-2 Layout of the book MECHANICAL LOADING General Examples Indirect actions THERMAL ACTION General Nominal temperature-time curves Parametric temperature-time curves Zone models CFD models Localized fires External members TEMPERATURE IN STEEL SECTIONS Introduction The heat conduction equation and its boundary conditions Advanced calculation model. Finite element solution of the heat conduction equation Section factor Temperature of unprotected steelwork exposed to fire Temperature of protected steelwork exposed to fire Internal steelwork in a void protected by heat screens External steelwork View factors in the concave part of a steel profile Temperature in steel members subjected to localized fires Temperature in stainless steel members MECHANICAL ANALYSIS Basic principles Mechanical properties of carbon steel Classification of cross-sections Effective cross-sections Fire resistance of structural members Design in the temperature domain. Critical temperature Design of continuous beams Fire resistance of structural stainless steel members Design examples ADVANCED CALCULATION MODELS General Thermal response model Mechanical response model Some comparisons between the simple and the advanced calculation models JOINTS General Strength of bolts and welds at elevated temperature Temperature of joints in fire Bolted connections Design fire resistance of welds Design examples THE COMPUTER PROGRAM "ELEFIR-EN" General Brief description of the program Default constants used in the program Design example CASE STUDY Description of case study Fire resistance under standard fire Fire resistance under natural fire REFERENCES ANNEX A THERMAL DATA FOR CARBON STEEL AND STAINLESS STEEL SECTIONS A.1. Thermal properties of carbon steel A.2. Section factor Am / V [m-1] for unprotected steel members A.3. Section factor Ap / V [m-1] for protected steel members A.4. Tables and nomograms for evaluating the temperature in unprotected steel members subjected to the standard fire curve ISO 834 A.5. Tables and nomograms for evaluating the temperature in protected steel members subjected to the standard fire curve ISO 834 A.6. Thermal properties of some fire protection materials A.7. Thermal properties of stainless steel A.8. Tables and nomograms for evaluating the temperature in unprotected stainless steel members subjected to the standard fire curve ISO 834 A.9. Thermal properties of some fire compartment lining materials ANNEX B INPUT DATA FOR NATURAL FIRE MODELS B.1. Introduction B.2. Fire load density B.3. Rate of heat release density B.4. Ventilation control B.5. Flash-over ANNEX C MECHANICAL PROPERTIES OF CARBON STEEL AND STAINLESS STEEL C.1 Mechanical properties of carbon steel C.2. Mechanical properties of stainless steel ANNEX D TABLES FOR SECTION CLASSIFICATION AND EFFECTIVE WIDTH EVALUATION ANNEX E SECTION FACTORS OF EUROPEAN HOT ROLLED IPE AND HE PROFILES ANNEX F CROSS-SECTIONAL CLASSIFICATION OF EUROPEAN HOT ROLLED IPE AND HE PROFILES F.1. Cross-sectional classification for pure compression and pure bending F.2. Cross-sectional classification for combined, compression and bending moment

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