PRACTICAL FORMWORK AND MOULD CONSTRUCTION SECOND EDITIONPDF电子书下载

CHAPTER 1 DEFINITION OF DESIGN AND THE APPROACH TO FORM AND MOULD CONSTRUCTION1.1 Introduction 1

1.2 The architect 4

1.3 The engineer 6

CONTENTS 7

PREFACE TO SECOND EDITION 7

1.4 The contractor or supplier and his staff 7

1.5 Sub-contractors and trades personnel 9

2.1 The formwork consultant 11

CHAPTER 2 PLANNING AND CONTROL OF FORM AND MOULD DESIGN 11

2.2 The contractor's design department 12

2.3 Design carried out on site 14

2.4 Mould design 15

2.5 Sub-contractors 15

CHAPTER 3 THE FACTORS THAT GOVERN FORM AND MOULD DESIGN 17

3.1 Specification and surface finish 17

3.2 Concrete considerations 19

3.3 Formwork construction 20

3.4 Placing considerations 22

3.5 Accuracy 24

3.6 Striking and demoulding 26

3.7 Striking times 28

3.8 Handling considerations 31

3.9 Mould requirements 32

CHAPTER 4 PRELIMINARY CONSIDERATIONS GOVERNING CONSTRUCTIONAL DESIGN 35

4.1 Interdependence of activities 35

4.2 Precast activity relationships 36

4.4 The activities of the formwork designer 37

4.3 Planning arrangements 37

CHAPTER 5 BASIS OF MODULAR DESIGN APPLIED TO MOULD AND FORMWORK 43

5.1 The optimum profile 43

5.2 Lifts and bay arrangements 46

5.3 Panel details 47

5.4 Vertical form section 49

5.5 Continuity and support 50

5.6 Precast concrete—mould design 52

5.7 The basic profile 54

6.2 Provision of drawings and details 58

6.1 Choice of material 58

CHAPTER 6 DETAILING THE FORMWORK SYSTEM 58

6.3 General assembly drawings 61

6.4 Sectional details 61

6.5 Panel details 64

6.6 Bay layouts and beam details 65

6.7 Sketches and schedules 67

6.8 Mould details 68

CHAPTER 7 FORM AND MOULD MATERIALS 1—PURPOSE MADE AND PROPRIETARY STEEL FORMWORK7.1 Steel formwork 72

7.2 Sheathing arrangements 74

7.3 Adjustable steel props 75

7.4 Telescopic centres 77

7.5 Tie arrangements 78

7.6 Release agents 79

7.7 Retarders 81

CHAPTER 8 FORM AND MOULD MATERIALS 2—TIMBER,TIMBER-DERIVED MATERIALS,CONCRETE AND PLASTICS8.1 Timber 83

8.2 Plywood 87

8.3 Hardboard 90

8.5 Plaster and concrete 91

8.4 Particle board 91

8.6 Plastics 92

8.7 Alloys and other materials 94

8.8 Formers for hollows and through-holes 95

CHAPTER 9 THE MANUFACTURE OF FORMWORK AND MOULDWORK 98

9.1 Timber mould and form manufacture 98

9.2 Steelmould and form fabrication 104

9.3 Plastics working 107

CHAPTER 10 CONSTRUCTION OF In SITU WORK 1—FOUNDATIONS AND WALL FORMATION10.1 Foundations and ground beams 108

10.2 Kickers 112

10.3 Column bases 115

10.4 Ducts and pockets 115

10.5 Fixings and fastenings 117

10.6 Wall forms 119

10.7 Single-sided walling 128

10.8 Stairs and landings 130

10.9 Wall construction—general details 132

10.10 Circular and conical walling 135

CHAPTER 11 CONSTRUCTION OF IN SITU WORK 2—COLUMN,BEAM AND SLAB FORMATION11.1 Column forms 140

11.2 Beam forms 149

11.3 Stair formwork 154

11.4 Standing supports 155

11.5 Reinforced concrete slab formwork 159

11.6 Stopends 163

CHAPTER 12 CONSTRUCTION OF MOULDS FOR PRECAST CONCRETE 167

12.1 General considerations 167

12.2 Precast piles 168

12.3 Floor units and decking panels 171

12.4 Moulds for mass production 173

12.5 Moulds for frame components 175

12.6 Mould construction—general 176

12.7 Stopend construction 181

12.8 Bridge beam moulds 183

12.9 Stack casting 184

12.10 Ducts for tendons 185

12.11 Precast stairs 186

12.12 Textured finishes 186

12.13 Ducts,culverts and subways 188

12.15 Tilting frame manufacture 189

12.14 Precast products 189

CHAPTER 13 CONSTRUCTION OF FORMWORK FOR SPECIAL APPLICATIONS,ARCHITECTURAL FEATURES AND SCULPTURE13.1 Sculpture and low relief work 191

13.2 In situ moulded surfaces 192

13.3 General considerations 193

CHAPTER 14 MODERN STEEL FORMWORK SYSTEMS(I．Dunkley,Managing Director,Datron GelLtd．) 193

14.1 Wallform 196

14.2 Tableform 198

14.3 Tunnel forms 202

14.4 Special forms 204

14.5 Precasting 206

14.6 General 207

CHAPTER 15 PLASTICS AS A MOULD MATERIAL(Peter J．Owen,Director,Bondeglass-Voss Ltd．)15.1 What does a plastics mould material offer? 208

15.2 Glass reinforced plastics(grp) 209

15.3 Storage of materials 209

15.4 Tools and equipment 210

15.5 Measuring equipment 210

15.6 Polyester resins 211

15.7 Catalyst(hardener) 211

15.9 The master mould 212

15.8 Glassfibre 212

15.11 Mould reinforcement 213

15.12 Laminating 213

15.10 Release agents 213

15.13 Usage 214

15.14 Release oils 215

15.15 Thermoplastics moulds 215

15.16 The method 216

15.17 Concrete 216

15.19 As a mould material 217

15.18 Two-part polyurethanes 217

15.20 Other plastics mould products 219

15.21 Expanded plastics 219

15.22 Materials 220

CHAPTER 16 SPECIAL STEEL FORMWORK—A CASE STUDY(P．R．Luckett,Technical Director,Stelmo Ltd．) 225

CHAPTER 17 SLIPFORM(C．J．Wilshere,JohnLaing Design Associates Ltd．) 235

17.1 Introduction 235

17.2 Detailed description 236

17.4 Equipment 237

17.3 Structural design considerations 237

17.5 Organisation 238

17.6 The start 239

17.7 Holes and pockets 240

17.8 Special aspects 240

17.9 Conclusion 240

CHAPTER 18 FORM CONSTRUCTION—TIE ARRANGEMENTS(C．J．Weller,The Sunderland Forge Engineering Co．Ltd．) 244

CHAPTER 19 THE ACTIVITIES OF THE FORMWORK DESIGN DEPARTMENT(K．Adams,Chairman,Joint Formwork Committee,Institution of Structural Engineers) 244

19.1 Factors that dictate the decisions made 256

19.2 The importance of attention to detail 257

19.3 Preparation of drawings 258

19.4 Floor slab construction 259

APPENDIX GROUP EXERCISES ON FORMWORK TOPICS 263

Formwork exercise Ⅰ 263

Formwork exercise Ⅱ 273

Planning a concreting operation 286

BIBLIOGRAPHY 287

INDEX 289