Roger P. Johnson, Yong C. Wang

Composite Structures of Steel and Concrete (eBook, ePUB)

Beams, Slabs, Columns and Frames for Buildings

• Format: ePub

Produktbeschreibung

This book provides an introduction to the theory and design of composite structures of steel and concrete. Material applicable to both buildings and bridges is included, with more detailed information relating to structures for buildings. Throughout, the design methods are illustrated by calculations in accordance with the Eurocode for composite structures, EN 1994, Part 1-1, 'General rules and rules for buildings' and Part 1-2, 'Structural fire design', and their cross-references to ENs 1990 to 1993. The methods are stated and explained, so that no reference to Eurocodes is needed. The use of Eurocodes has been required in the UK since 2010 for building and bridge structures that are publicly funded. Their first major revision began in 2015, with the new versions due in the early 2020s. Both authors are involved in the work on Eurocode 4. They explain the expected additions and changes, and their effect in the worked examples for a multi-storey framed structure for a building, including resistance to fire. The book will be of interest to undergraduate and postgraduate students, their lecturers and supervisors, and to practising engineers seeking familiarity with composite structures, the Eurocodes, and their ongoing revision.

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Produktdetails

• Verlag: John Wiley & Sons
• Seitenzahl: 288
• Erscheinungstermin: 21. August 2018
• Englisch
• ISBN-13: 9781119401384
• Artikelnr.: 54060065

Autorenporträt

Roger P. Johnson is Emeritus Professor of Civil Engineering at the University of Warwick. He has worked for several decades on the theory and applications of composite structures. He was sometime Convenor of the Drafting Committees for Parts 1.1 and 2 of Eurocode 4, and is a member of the BSI sub-committee for composite structures. Yong C. Wang is Professor of Structural and Fire Engineering at the University of Manchester, with about 30 years of research and specialist consultancy experience in fire resistance of structures. He is a member of the CEN Working Group overseeing revision to EN 1994-1-2 and a member of the CEN Project Team SC4.T4 developing new rules for fire resistance design of composite columns made of unprotected concrete filled tubular sections.

Inhaltsangabe

Preface xi

Symbols, Terminology and Units xv

1 Introduction 1

1.1 Composite beams and slabs 1

1.2 Composite columns and frames 2

1.3 Design philosophy and the Eurocodes 3

1.3.1 Background 3

1.3.2 Limit state design philosophy 4

1.4 Properties of materials 8

1.4.1 Concrete 9

1.4.2 Reinforcing steel 10

1.4.3 Structural steel 10

1.4.4 Profiled steel sheeting 10

1.4.5 Shear connectors 11

1.5 Direct actions (loading) 11

1.6 Methods of analysis and design 12

1.6.1 Typical analyses 13

1.6.2 Non-linear global analysis 17

2 Shear Connection 19

2.1 Introduction 19

2.2 Simply-supported beam of rectangular cross-section 20

2.2.1 No shear connection 20

2.2.2 Full interaction 22

2.3 Uplift 24

2.4 Methods of shear connection 25

2.4.1 Bond 25

2.4.2 Shear connectors 25

2.4.3 Shear connection for profiled steel sheeting 29

2.5 Properties of shear connectors 29

2.5.1 Stud connectors used with profiled steel sheeting 33

2.5.2 Stud connectors in a 'lying' position 38

2.5.3 Example: stud connectors in a 'lying' position 39

2.6 Partial interaction 41

2.7 Effect of degree of shear connection on stresses and deflections 43

2.8 Longitudinal shear in composite slabs 44

2.8.1 The shear-bond test 45

2.8.2 Design by the m-k method 47

2.8.3 Defects of the m-k method 47

3 Simply-supported Composite Slabs and Beams 49

3.1 Introduction 49

3.2 Example: layout, materials and loadings 49

3.2.1 Properties of concrete 50

3.2.2 Properties of other materials 50

3.2.3 Resistance of the shear connectors 51

3.2.4 Permanent actions 51

3.2.5 Variable actions 51

3.3 Composite floor slabs 51

3.3.1 Resistance of composite slabs to sagging bending 54

3.3.2 Resistance of composite slabs to longitudinal shear by the partial-interaction method 56

3.3.3 Resistance of composite slabs to vertical shear 58

3.3.4 Punching shear 59

3.3.5 Bending moments from concentrated point and line loads 60

3.3.6 Serviceability limit states for composite slabs 62

3.4 Example: composite slab 63

3.4.1 Profiled steel sheeting as formwork 64

3.4.2 Composite slab - flexure and vertical shear 65

3.4.3 Composite slab - longitudinal shear 66

3.4.4 Local effects of point load 68

3.4.5 Composite slab - serviceability 69

3.4.6 Example: composite slab for a shallow floor using deep decking 70

3.4.7 Comments on the designs of the composite slab 73

3.5 Composite beams - sagging bending and vertical shear 73

3.5.1 Effective cross-section 73

3.5.2 Classification of steel elements in compression 74

3.5.3 Resistance to sagging bending 76

3.5.4 Resistance to vertical shear 84

3.5.5 Resistance of beams to bending combined with axial force 85

3.6 Composite beams - longitudinal shear 86

3.6.1 Critical lengths and cross-sections 86

3.6.2 Non-ductile, ductile and super-ductile stud shear connectors 87

3.6.3 Transverse reinforcement 90

3.6.4 Detailing rules 94

3.7 Stresses, deflections and cracking in service 95

3.7.1 Elastic analysis of composite sections in sagging bending 96

3.7.2 The use of limiting span-to-depth ratios 98

3.8 Effects of shrinkage of concrete an