BS EN 1992-1-2:2023
$215.11
Eurocode 2. Design of concrete structures – Structural fire design
Published By | Publication Date | Number of Pages |
BSI | 2023 | 94 |
1.1 Scope of prEN 1992 1 2 (1) This document deals with the design of concrete structures for the accidental situation of fire exposure and is intended to be used in conjunction with prEN 1992 1 1 and EN 1991 1 2. This document identifies differences from, or supplements to, normal temperature design. (2) This document applies to concrete structures required to fulfil a loadbearing function, separating function or both. (3) This document gives principles and application rules for the design of structures for specified requirements in respect of the aforementioned functions and the levels of performance. (4) This document applies to structures, or parts of structures, that are within the scope of prEN 1992 1 1 and are designed accordingly. (5) The methods given in this document are applicable to normal weight concrete up to strength class C100/115 and lightweight concrete up to strength class LC50/60. 1.2 Assumptions (1) In addition to the general assumptions of prEN 1990 the following assumptions apply: – the choice of the relevant design fire scenario is made by appropriate qualified and experienced personnel or is given by the relevant national regulation; – any fire protection measure taken into account in the design will be adequately maintained.
PDF Catalog
PDF Pages | PDF Title |
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2 | undefined |
13 | 1 Scope 1.1 Scope of EN 199212 1.2 Assumptions 2 Normative references |
14 | 3 Terms, definitions and symbols 3.1 Terms and definitions 3.2 Symbols 3.2.1 Latin upper case letters |
16 | 3.2.2 Latin lower case letters |
18 | 3.2.3 Greek lower case letters |
20 | 3.2.4 Units 3.2.5 Sign conventions |
21 | 4 Basis of design 4.1 General rules 4.2 Nominal fire exposure |
22 | 4.3 Physically based fire exposure 4.4 Actions 4.5 Design values of material properties 4.6 Verification methods |
23 | 4.7 Member analysis 4.8 Analysis of parts of the structure |
24 | 4.9 Global structural analysis 4.10 Detailing 4.11 Spalling 4.12 Protective layers |
25 | 5 Material properties 5.1 General 5.2 Concrete thermal properties 5.2.1 Emissivity coefficient 5.2.2 Thermal conductivity 5.2.3 Specific heat |
27 | 5.2.4 Density 5.3 Mechanical properties 5.3.1 Concrete 5.3.1.1 Concrete under compression |
29 | 5.3.1.2 Tensile strength |
30 | 5.3.1.3 Thermal expansion 5.3.2 Reinforcing steel 5.3.2.1 Strength and deformation properties |
32 | 5.3.2.2 Thermal expansion 5.3.3 Prestressing steel 5.3.3.1 Strength and deformation properties |
33 | 5.3.3.2 Thermal expansion |
34 | 6 Tabulated design data 6.1 General |
35 | 6.2 General design rules |
37 | 6.3 Columns 6.3.1 General 6.3.2 Method A 6.3.2.1 General |
38 | 6.3.2.2 Columns exposed to fire on four sides |
40 | 6.3.2.3 Columns exposed to fire on one side |
41 | 6.3.3 Method B 6.4 Walls 6.4.1 Non load-bearing walls (partitions) 6.4.2 Load-bearing solid walls |
43 | 6.5 Tensile members 6.6 Beams 6.6.1 General |
45 | 6.6.2 Simply supported beams exposed to fire on one, two or three sides |
46 | 6.6.3 Continuous beams exposed to fire on one, two or three sides |
48 | 6.6.4 Beams exposed on all sides 6.7 Slabs 6.7.1 General |
49 | 6.7.2 Simply supported slabs |
50 | 6.7.3 Continuous solid slabs 6.7.4 Flat slabs 6.7.5 Ribbed slabs |
53 | 7 Simplified design methods 7.1 General 7.2 Temperature profiles 7.2.1 General 7.2.2 Basic solution for one side exposure |
55 | 7.2.3 Walls, slabs and rectangular cross-sections |
57 | 7.2.4 Circular cross-sections |
58 | 7.3 Structural analysis 7.3.1 General 7.3.2 Reduction of cross-section |
60 | 7.3.3 Bending 7.3.3.1 General |
61 | 7.3.3.2 Simplified verification 7.3.3.3 Refined verification |
63 | 7.3.4 Bending and axial load 7.3.4.1 General 7.3.4.2 Simplified verification |
66 | 7.3.4.3 Refined verification |
67 | 7.3.5 Shear and torsion 7.3.5.1 General 7.3.5.2 Shear resistance of members dependant on concrete tensile strength 7.3.5.3 Shear resistance of members with shear reinforcement |
68 | 7.3.5.4 Torsion resistance of members with shear reinforcement |
70 | 8 Advanced design methods 8.1 General 8.2 Thermal analysis 8.3 Mechanical analysis |
71 | 8.4 Validation of advanced design methods |
72 | 9 Detailing 9.1 General 9.2 Detailing of reinforcing and prestressing steel 9.3 Detailing of members |
73 | 9.4 Joints |
74 | 9.5 Connections 9.6 Fire protection systems |
75 | 10 Rules for spalling |
77 | Annex A (normative)Lightweight aggregate concrete structures A.1 Use of this annex A.2 Scope and field of application A.3 Material properties |
78 | A.4 Tabulated design data A.5 Rules for spalling |
79 | Annex B (informative)Steel fibre reinforced concrete structures B.1 Use of this annex B.2 Scope and field of application B.3 Design rules |
80 | Annex C (informative)Recycled aggregates concrete structures C.1 Use of this annex C.2 Scope and field of application C.3 Design rules |
81 | Annex D (normative)Buckling of columns under fire conditions D.1 Use of this annex D.2 Scope and field of application |
89 | Annex E (informative)Load-bearing solid walls — complementary tables E.1 Use of this annex E.2 Scope and field of application E.3 Complementary tables |