BS 7121-5:2019 – TC
$280.87
Tracked Changes. Code of practice for safe use of cranes – Tower cranes
| Published By | Publication Date | Number of Pages |
| BSI | 2019 | 343 |
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 1 | compares BS 7121-5:2019 |
| 2 | TRACKED CHANGES Test example 1 |
| 3 | BS 7121-5:2019 to BS 7121-5:2006 |
| 17 | Foreword Publishing information Supersession |
| 18 | Information about this document Use of this document Presentational conventions Contractual and legal considerations |
| 19 | 1 Scope 2 Normative references |
| 20 | 3 Terms and definitions 3.1 appointed person 3.2 carrier 3.1 alteration 3.2 blind lift 3.3 climbing 3.4 competent engineer 3.5 competent person |
| 21 | 3.6 crane coordinator 3.7 crane operator 3.8 crane supervisor 3.9 employing organization 3.5 dismantling 3.6 erection 3.7 erection team 3.12 indicator 3.13 installation 3.14 lifting 3.14.1 basic lift 3.14.2 standard lift 3.14.3 complex lift |
| 22 | 3.15 lifting equipment 3.16 load 3.17 lifting accessory 3.18 method statement 3.19 radius 3.20 radius indicator 3.21 rated capacity 3.22 rated capacity indicator/limiter RCI/L 3.103.7.2 erector 3.233.7.3 senior erector 3.24 service conditions 3.24.1 in-service 3.24.2 out-of-service 3.25 signaller |
| 23 | 3.26 slinger 3.27 thorough examination 3.7.4 trainee erector 3.8 hold point 3.9 installation 3.10 lift plan 3.11 radius indicator 3.12 rotation of crane 3.12.2 weathervane 3.283.13 tower crane 3.28.23.13.2 self-erecting tower crane (SETC) |
| 24 | 3.29 trainee erector 3.30 use 3.31 user 3.32 weight 3.14 work at height 3.15 limiting devices 3.333.15.2 zoning device |
| 25 | Section 1: General management of lifting operations with tower cranes 4 Management of installation and lifting operations 4.1 Safe system of work |
| 26 | 4.2 Control of the installation or lifting operation 4.2.1 General |
| 27 | 4.2.2 Selection and assessment of appointed person 4.2.3 Avoidance of collisions |
| 28 | 4.3 Duties of the person appointed to control the installation/lifting operation 4.3.1 General 4.3.2 Basic lift |
| 29 | 4.3.3 Standard lift |
| 30 | 4.3.4 Complex lift 4.3.1 General |
| 31 | 4.3.2 Lift category and control measures |
| 36 | 4.4 Duties of the persons involved in construction projects |
| 37 | 5 Contract lift or crane hire 5.1 General 5.2 Contract lifting operations |
| 39 | 5 Planning of the lifting operation 5.1 General |
| 40 | 5.2 Risk assessment 5.3 Method statements |
| 41 | 5.4 Team briefing/induction |
| 42 | 5.5 Selection of cranes 5.6 Siting of crane 5.7 Contracts |
| 43 | 6 Planning of lifting operations when the crane is in use 6.1 General |
| 44 | 6.2 Risk assessment 6.3 Method statements |
| 45 | 6 Selection and duties of personnel other than the appointed person 7 Selection and duties of personnel 7.1 Selection of personnel 7.2 Duties of personnel 7.2.1 Crane supervisor |
| 46 | 7.2.2 Crane coordinator 7.2.3 Crane operator 7.2.4 Slinger 7.2.5 Signaller |
| 47 | 7.2.6 Maintenance personnel 7.2.7 Erector |
| 48 | 7.2.8 Senior erector 7.2.9 Crane erection supervisor 7.2.10 Trainee erector |
| 49 | 8 Minimum attributes of personnel 8.1 General 8.2 Crane supervisor 8.3 Crane coordinator 8.4 Crane operator |
| 51 | 8.5 Slinger 8.6 Signaller 8.7 Maintenance personnel |
| 52 | 8.8 Crane erector 8.9 Senior erector 8.10 Erection supervisor |
| 53 | 8.11 Trainee erector 8.12 Training of erection personnel 8.12.1 Basic skills 8.12.2 Additional skills |
| 54 | 8.12.3 Familiarization with new systems or equipment 8.12.4 Assessment 8.12.5 Traceability of training to manufacturers 8.12.6 Health and fitness |
| 55 | 9 Selection of tower cranes 9.1 General 9.2 Types of tower |
| 57 | 9.3 Types of jib |
| 59 | 9.3.1 Horizontal trolley jib (A frame type) 9.3.2 Horizontal trolley jib (Flat top type) 9.3.3 Luffing jib 9.3.4 Fixed radius jib |
| 60 | 9.4 Types of base |
| 61 | 9.4.1 Cast-in base 9.4.2 Cruciform base |
| 62 | 9.4.3 Travelling base 9.4.4 Grillage base 9.4.5 Non-crane structure 9.5 Types of tower crane 9.5.1 Climbing crane 9.5.2 Rail mounted tower crane |
| 63 | 9.5.3 Lorry mounted tower crane 9.5.4 Wheel mounted tower crane 9.5.5 Crawler mounted tower crane |
| 64 | 9.5.6 Micro tower crane 9.5.7 Remote controls |
| 65 | Section 2: Selection of tower cranes 7 Selection of tower cranes 7.1 General |
| 67 | 7.2 Remote controls |
| 68 | 8 Siting of crane 8.1 General 8.2 Crane standing and support conditions 8.2.1 General |
| 69 | 8.3 Out-of-service wind speed 8.3.1 Region C and Region D out-of-service wind loads (see Figure 3) with a minimum recurrence factor of 25 years should be applied to all tower cranes regardless of age. The load cases specified in FEM 1.005 should also be applied. |
| 71 | 8.3.2 Site-specific wind surveys should only be undertaken by a suitably qualified and experienced independent organization, in accordance with the UK National Annex to BS EN 1991-1-4:2005+A1:2010 or an applicable wind tunnel test report. The report s… 8.4 Tower crane foundations 8.4.1 General |
| 72 | 8.4.2 Rail tracks for tower cranes |
| 73 | 8.4.3 Cast-in base (see A.3) |
| 74 | 8.4.4 Cruciform base (see A.3) 8.4.5 Travelling base (see A.3) 8.4.6 Grillage base (see A.3) 8.4.7 Non-crane base structure (see A.3) 8.4.8 Special base 8.4.9 Ground conditions |
| 75 | 8.5 Proximity hazards 8.5.1 General |
| 76 | 8.5.2 Overhead electric lines and cables 8.5.3 Crane control in the vicinity of aerodromes/airfields |
| 77 | 10 Safety 10.1 General 10.2 Identification of person directing crane movements 10.3 Personal safety equipment |
| 78 | 10.4 Use of personal protective equipment 10.5 Access and emergency escape |
| 79 | 10.6 Fire extinguishers 10.7 Limiting and indicating devices |
| 80 | 10.8 Other safety provisions |
| 81 | 10.9 Documentation |
| 82 | 10.10 Operator working hours and resources |
| 83 | Section 3: Safety and operational considerations 9 Safety 9.1 Modifications and materials 9.2 Product modifications and updates 9.3 Identification of person directing crane movements 9.4 Personal protective equipment (PPE) and safety equipment |
| 84 | 9.5 Work at height |
| 85 | 9.6 Access and egress (including emergency escape) |
| 92 | 9.7 Fire risk assessment and fire extinguishers |
| 93 | 9.8 Attachments |
| 94 | 9.9 Limiting and indicating devices |
| 96 | 9.10 Machinery guarding 9.11 Lightning protection |
| 97 | 9.12 Base ballast 9.13 Counterweight ballast 9.14 Travel alarms |
| 98 | 11 Siting of cranes 11.1 General 11.2 Crane standing or support conditions 11.3 Proximity hazards |
| 100 | 11.4 Ground conditions 11.5 Tower crane foundations |
| 101 | 10 Procedures and precautions 10.1 Operator working hours and resources 10.2 Crane operation |
| 102 | 10.3 Working on cranes 10.3.1 General 10.3.2 Permit to work |
| 103 | 10.3.3 Periodic checks 10.4 Crane not in regular use 10.5 Reporting of defects and incidents 10.6 Leaving the crane unattended |
| 106 | 11 Operating conditions 11.1 Rated capacity |
| 108 | 11.2 Mode of operation and control 11.2.1 General 11.2.2 Remote-controlled cranes |
| 109 | 11.3 Handling of loads near persons 11.4 Multi-crane lifting and lowering 11.5 Special duties |
| 110 | 12 Erecting, dismantling and alteration of height 12.1 Planning 12.1.1 General 12.1.2 Working hours and resources 12.1.3 Liaison with principle contractor and others 12.1.4 Site visits 12.1.5 Structural considerations 12.1.6 Risk assessment |
| 111 | 12.1.7 Method statement preparation 12.1.7.1 General 12.1.7.2 Issue and revision 12.1.7.3 Tower crane configuration 12.1.7.4 Programme 12.1.7.5 Responsibilities 12.1.7.6 The erection team 12.1.7.7 Briefing arrangements |
| 112 | 12.1.7.8 Preparation of components and equipment 12.1.7.9 Transport of components to and from site 12.1.7.10 Access 12.1.7.11 Proximity hazards 12.1.7.12 Craneage arrangements 12.1.7.13 Protection from falling objects 12.1.7.14 Protection from falls from height |
| 113 | 12.1.7.15 Communication 12.1.7.16 Weather forecasting and monitoring 12.1.7.17 Installation method 12.1.7.18 Information 12.1.7.19 Contingency arrangements 12.1.7.20 Thorough examination including testing 12.1.7.21 Commissioning the crane |
| 114 | 12.2 Manufacturer’s erection and dismantling instructions 12.3 Components and materials 12.3.1 Components 12.3.2 Materials |
| 115 | 12.4 Electrical supply 12.5 Personnel 12.6 Control |
| 116 | 12.7 Inspection before erection 12.8 Weather 12.9 Working area and exclusion zones 12 Lifting of pre-slung loads |
| 117 | 12.1 Single-use slings 12.2 Lifting pre-slung loads 12.3 Load-resistant nets |
| 118 | 13 Tower crane climbing 13.1 General 13.2 Basic principles 13.2.1 General 13.2.2 External climbing |
| 120 | 13.2.3 Internal climbing |
| 121 | 13.3 Climbing systems 13.3.1 General 13.3.2 External |
| 122 | 13.3.3 Internal 13.4 Planning 13.4.1 General 13.4.2 Structural considerations 13.4.2.1 General 13.4.2.2 External ties |
| 123 | 13.4.2.3 Internal climbing frames or collars 13.4.3 Risk assessment |
| 124 | 13.4.4 Method statement preparation 13.4.4.1 General 13.4.4.2 Communication 13.4.4.3 Weather forecasting and monitoring 13.4.4.4 Inspection of climbing equipment before and during climbing |
| 125 | 13.4.4.5 Specific climbing procedures including balancing 13.4.4.6 Contingency arrangements 13.4.4.7 Thorough examination including testing 13.4.4.8 Commissioning the crane 13.5 Climbing process 13.5.1 Briefing of erection team 13.5.2 Liaison with site |
| 126 | 13.5.3 Environmental monitoring 13.5.3.1 Wind 13.5.3.2 Visibility 13.5.4 Monitoring of exclusion zones 13.5.5 Craneage arrangements 13.5.6 Assembly and inspection of climbing equipment |
| 127 | 13.5.7 Positioning of tower sections 13.5.8 Following manufacturer’s procedures 13.5.9 Checks before and during climbing 13.5.10 Balancing the crane |
| 128 | 13.5.11 Climbing in new tower sections 13.5.12 Re-commissioning the crane 13.5.13 Storage and removal of the climbing equipment 13.5.14 Climbing down 13.5.15 Contingency arrangements 13.6 Thorough examination including testing of the crane after climbing |
| 129 | 13.7 Maintenance of climbing equipment 13.7.1 General 13.7.2 Records 13.7.3 Checks and inspections 13.7.4 Defect reporting 13.7.5 Thorough examination 13.7.6 Maintenance intervals and procedures |
| 130 | 13 Slinging and handling of loads 13.1 General 13.2 Signalling systems |
| 131 | 14 Procedures and precautions 14.1 Crane operation 14.2 Working on cranes 14.2.1 General 14.2.2 Permit to work |
| 132 | 14.2.3 Periodic checks 14.3 Crane not in regular use 14.4 Reporting of defects and incidents 14.5 Working at heights 14.6 Leaving the crane unattended |
| 133 | 14 In-service and out-of-service wind speeds 14.1 In-service wind speed 14.1.1 General 14.1.2 The effect of wind on suspended loads |
| 134 | 14.1.3 High wind conditions and taking the tower crane out of service 14.1.4 Returning the tower crane to service 14.2 Consideration of wind speed during planning of lifts |
| 135 | 15 Operating conditions 15.1 Rated capacity 15.2 Mode of operation and control 15.2.1 General |
| 136 | 15.2.2 Remote-controlled cranes 15.3 Handling of loads near persons 15.4 Multiple lifting 15.5 Special duties 15 Crane documentation 15.1 Rated capacity charts 15.2 Instruction manuals 15.3 Reports of thorough examination/test certificates |
| 137 | 15.4 Maintenance records 15.5 Erection/dismantling and transport 15.6 Operator’s documentation 15.7 Medical records 15.8 Plans and method statements 16 Slinging and handling of loads 16.1 Weight and centre of gravity of the load 16.1.1 Weight of the load |
| 138 | 16.1.2 Centre of gravity 16.1.3 Regularly shaped load(s) 16.1.4 More complex-shaped loads or irregularly shaped loads 16.1.5 Use of lifting accessories/attachments |
| 139 | 16.2 Signalling systems 16 Pre-use checks, maintenance and inspection |
| 140 | 17 Maintenance 17.1 General 17.2 Planned maintenance 17.3 Replacement components 17.4 Use of special materials in crane construction |
| 141 | 17 Thorough examination, including testing 17.1 General 17.2 Age and utilization 17.3 Change of ownership of the crane |
| 142 | 18 Thorough examination 18.1 General 18.2 Age and utilization |
| 143 | Section 4: Tower crane erection, dismantling and alteration 18 Erection, dismantling and alteration 18.1 Planning 18.1.1 General |
| 144 | 18.1.2 Liaison with principal contractor and others 18.1.3 Pre-erection site meeting |
| 145 | 18.1.4 Site visits 18.1.5 Risk assessment 18.1.6 Method statement 18.1.6.1 General |
| 147 | 18.1.6.2 Issue and revision 18.2 Manufacturer’s erection and dismantling instructions |
| 148 | 18.3 Craneage 18.4 Components and materials 18.4.1 Identification of components 18.4.2 Materials 18.4.3 High-tensile fasteners 18.4.3.1 General |
| 149 | 18.4.3.2 Design considerations |
| 151 | 18.4.3.3 Installation |
| 152 | 18.4.3.4 Maintenance 18.4.3.5 Regular inspection and examination of bolt connections |
| 153 | 18.4.4 Taking crane out of service when bolt connection problems occur 18.5 Electrical supply |
| 154 | 18.6 Personnel 18.7 Briefing of the erection team |
| 155 | 18.8 Communication 18.9 Protection from falls from height 18.10 Control 18.11 Inspection before erection |
| 156 | 18.12 Weather conditions 18.12.1 General 18.12.2 Wind 18.12.3 Visibility 18.12.4 Rain or snow/ice 18.12.5 Sea state 18.13 Working area and exclusion zones |
| 157 | 18.14 Installation and use of self-erecting tower cranes 18.14.1 General 18.14.2 Selection and minimum attributes of personnel 18.14.3 Training of personnel 18.14.4 Siting of crane bases 18.14.5 Thorough examination (including testing) |
| 158 | 19 Tower crane climbing 19.1 General 19.2 Structural considerations 19.2.1 General 19.2.2 External ties |
| 159 | 19.2.3 Internal climbing frames or collars |
| 160 | 19.3 Risk assessment 19.4 Method statement 19.4.1 General |
| 161 | 19.5 Climbing process 19.5.1 Briefing of erection team 19.5.2 Liaison with site |
| 162 | 19.5.3 Hold points 19.5.4 Environmental monitoring 19.5.4.1 Wind |
| 163 | 19.5.4.2 Visibility 19.5.5 Monitoring of exclusion zones 19.5.6 Craneage 19.5.7 Assembly and inspection of climbing equipment |
| 164 | 19.5.8 Positioning of tower sections 19.5.9 Manufacturer’s procedures 19.5.10 Checks before and during climbing |
| 165 | 19.5.11 Balancing the crane 19.5.12 Climbing in new tower sections 19.5.13 Re-commissioning 19.5.14 Storage and removal 19.5.15 Climbing down |
| 166 | 19.5.16 Contingency arrangements 19.6 Thorough examination, including testing of the crane after climbing 19.7 Maintenance of climbing equipment 19.7.1 Records 19.7.2 Checks and inspections 19.7.3 Defect reporting |
| 167 | 19.7.4 Thorough examination 19.7.5 Maintenance intervals and procedures |
| 168 | Annex A (normative) Additional recommendations for the installation and use of self-erecting tower cranes A.1 General A.2 Selection and minimum attributes of personnel A.2.1 Duties of personnel A.2.2 Minimum attributes of personnel A.2.3 Training of personnel A.3 Remote controls A.4 Siting of bases of cranes |
| 169 | A.5 Thorough examination (including testing) Annex B (normative) Lifting of persons B.1 General B.2 Carrier B.3 Compatibility of carrier and crane B.3.1 Capacity B.3.2 Motion control system B.3.3 Ropes B.3.4 Hook |
| 170 | B.4 Other devices B.4.1 Anemometer B.4.2 Storage B.4.3 Rated capacity indicator/limiter B.5 Operation B.5.1 Organizational recommendations |
| 171 | B.5.2 Precautions for persons in the carrier B.5.3 Work from a carrier |
| 172 | Annex C (normative) C.1 General C.2 Employers duties |
| 173 | C.3 Machine specific training C.3.1 General C.3.2 Appropriate training C.3.3 Slinger training C.3.4 Instructors C.4 Selection of operators and slingers C.4.1 General C.4.2 Selection criteria |
| 174 | C.4.3 Assessment of training needs C.5 Basic training of operators C.5.1 General C.5.2 Training venue C.5.3 Cranes used for training C.5.4 Training area access C.5.5 Appropriateness of training |
| 175 | C.5.6 Facilities and training aids C.5.7 Course duration C.5.8 Course structure C.5.9 Multiple crane types C.5.10 Trainee/Instructor ratio C.6 The training programme C.6.1 General C.6.2 Theoretical topics |
| 176 | C.6.3 Practical topics C.6.4 Training in slinging C.7 Advanced training for operators C.7.1 General |
| 177 | C.7.2 Training venue and course content C.8 Training of slingers C.8.1 General C.8.2 Training focus C.8.3 Training equipment C.8.4 Training facilities C.8.5 Course duration C.8.6 Course content C.8.6.1 Theoretical topics |
| 178 | C.8.6.2 Practical topics C.9 Appraisal and authorization C.9.1 General C.9.2 Crane operator’s test C.9.3 Slinger’s test C.9.4 Training records and certification C.9.5 Authorization of employees C.9.6 Continuing assessment |
| 179 | C.10 Selection and training of instructors C.10.1 General C.10.2 Previous experience C.10.3 Instructor qualities C.10.4 Instructor training course content C.10.5 Assessment and certification |
| 180 | Annex A (informative) A.1 Types of tower |
| 181 | A.2 Types of jib A.2.1 Horizontal trolley jib (A-frame type) [see Figure A.2a)] A.2.2 Horizontal trolley jib (Flat-top type) [see Figure A.2b)] A.2.3 Luffing jib [see Figure A.2c)] |
| 182 | A.2.4 Fixed radius jib [see Figure A.2d)] A.2.5 Rear-pivoted jib [see Figure A.2e)] |
| 185 | A.3 Types of base 1 |
| 186 | 1 |
| 187 | A.4 Types of tower crane A.4.1 Climbing crane A.4.2 Rail-mounted tower crane |
| 188 | A.4.3 Lorry-mounted tower crane A.4.4 Wheel-mounted tower crane A.4.5 Crawler-mounted tower crane |
| 189 | A.4.6 Micro-tower crane Annex B (informative) |
| 190 | Annex C (informative) C.1 Crane service life: Classification criteria C.2 Tower crane service life |
| 191 | Annex D (normative) Emergency plan D.1 General |
| 192 | D.2 Planning issues |
| 193 | D.3 Measures to reduce the requirement for rescue from height D.3.1 Tower crane selection D.3.2 Lone working D.3.3 Medical fitness |
| 194 | D.3.4 Competence D.3.5 Method statement D.3.6 Inspection and maintenance of rescue equipment |
| 195 | Annex E (normative) Rescue from height E.1 General |
| 196 | E.2 Crane operators E.2.1 Preventative measures E.2.2 Rescue arrangements |
| 197 | E.3 Maintenance personnel E.3.1 Preventative measures E.3.2 Risk assessment |
| 198 | Annex F (informative) Tower crane climbing F.1 General |
| 199 | F.2 External climbing |
| 200 | F.3 Internal climbing |
| 201 | 1 |
| 202 | Annex DG (informative) D.1G.1 Procedure for the thoroughThorough examination of frame for top climbing of tower cranes D.1.1G.1.1 Procedure for 6six-monthly thorough examination NOTE The 6six-monthly thorough examination may can be supplemented by NDT examination at the discretion of the competent person. D.1.1.1G.1.1.1 Confirm the identification number of the frame and all corresponding sections, to confirmverify that all parts are of the same frame. D.1.1.2G.1.1.2 Carry out a visual check of the frame structure, checking for any damage to structural members or evidence of cracking in welds. Pay, paying particular attention to the suspension brackets and the jointing plates. D.1.1.3G.1.1.3 Confirm the free movement of all guide rollers and check for damage. D.1.1.4G.1.1.4 Check the rollers for undue wear and check that all keep plates are in place and secure. D.1.1.5G.1.1.5 Check the hydraulic ram mounting brackets for security, and check the welds for signs of cracking. D.1.1.6G.1.1.6 Check the lifting yoke at the base of the hydraulic ram for signs of wear and any cracking or deformity. D.1.1.7G.1.1.7 Check the hydraulic ram joint pin for lift and that it is correctly locked in position. D.1.1.8G.1.1.8 Check that the rollers are free to rotate, to allow horizontal motion of the ram, are free to rotate. |
| 203 | D.1.1.9G.1.1.9 Carry out a visual inspection to check that the hydraulic system is free from leaks and has no damage to the pipework or the connections. D.1.1.10G.1.1.10 Check the travelling platform and its support for damage to itself and its supports. D.1.1.11G.1.1.11 Check the walkways for damage and security of fixing. Close off the walkways. D.1.1.12G.1.1.12 Record the results of the examination on the appropriate form and retain on file. D.1.2G.1.2 Procedure for 2two-yearly thorough examination D.1.2.2G.1.2.2 Remove the reaction roller pins and measure them to assess wear. Subject the pins to NDT examination. D.1.2.3G.1.2.3 Carry out the six-monthly thorough examination at this time. D.1.3G.1.3 Procedure for 4four-yearly thorough examination D.1.3.1G.1.3.1 Subject the hydraulic ram and relief valves to a pressure test in accordance with the manufacturer’s recommendations for thatthe system. D.1.3.2G.1.3.2 Remove the ram-jointing pin, measure it for any wear and subject it to NDT examination. D.1.3.2G.1.3.3 Carry out the 6six-monthly thorough examination at this time. D.2G.2 Procedure for post-installation thorough examination report |
| 204 | D.3G.3 Procedure for pre-use check of frame for top climbing of tower cranes |
| 205 | Annex E (informative) Background to the BS 7121 series |
| 206 | Annex H (informative) |
| 207 | Annex I (normative) |
| 208 | Annex J (normative) Annex K (informative) K.1 Introduction |
| 209 | K.2 Factors that influence HE |
| 210 | Annex L (normative) |
| 212 | Bibliography |
| 222 | Foreword |
| 224 | 1 Scope 2 Normative references |
| 225 | 3 Terms and definitions |
| 228 | Section 1: General management of lifting operations with tower cranes 4 Management of installation and lifting operations 4.1 Safe system of work 4.2 Control of the installation or lifting operation |
| 229 | Figure 1 — Flow of information between personnel involved in lifting operations |
| 230 | 4.3 Duties of the person appointed to control the lifting operation |
| 232 | Table 1 — Example load and environmental hazards associated with lifting operations |
| 233 | Figure 2 — Relationship between complexity index and lift category |
| 234 | Table 2 — Illustration of the categorization of lifts based on environmental and load complexities |
| 236 | 5 Planning of the lifting operation 5.1 General |
| 238 | 5.2 Risk assessment 5.3 Method statements |
| 239 | 5.4 Team briefing/induction 5.5 Selection of cranes |
| 240 | 5.6 Siting of crane 5.7 Contracts |
| 241 | 6 Selection and duties of personnel other than the appointed person |
| 242 | Section 2: Selection of tower cranes 7 Selection of tower cranes 7.1 General |
| 245 | 7.2 Remote controls 8 Siting of crane 8.1 General |
| 246 | 8.2 Crane standing and support conditions 8.3 Out-of-service wind speed |
| 248 | Figure 3 — UK out-of-service wind region map for tower cranes |
| 249 | 8.4 Tower crane foundations |
| 252 | 8.5 Proximity hazards |
| 255 | Section 3: Safety and operational considerations 9 Safety 9.1 Modifications and materials 9.2 Product modifications and updates 9.3 Identification of person directing crane movements 9.4 Personal protective equipment (PPE) and safety equipment |
| 256 | 9.5 Work at height |
| 257 | 9.6 Access and egress (including emergency escape) |
| 261 | Figure 4 — Base enclosure |
| 262 | Figure 5 — Anti-climb panels Figure 6 — Trapdoor |
| 263 | Figure 7 — Trapdoor and base enclosure lock 9.7 Fire risk assessment and fire extinguishers |
| 264 | 9.8 Attachments |
| 265 | 9.9 Limiting and indicating devices |
| 268 | 9.10 Machinery guarding 9.11 Lightning protection 9.12 Base ballast |
| 269 | 9.13 Counterweight ballast 9.14 Travel alarms 10 Procedures and precautions 10.1 Operator working hours and resources Table 3 — Minimum number of operators required for continuous single shift operation of tower cranes 10.2 Crane operation 10.3 Working on cranes |
| 270 | 10.4 Crane not in regular use |
| 271 | 10.5 Reporting of defects and incidents 10.6 Leaving the crane unattended |
| 273 | 11 Operating conditions 11.1 Rated capacity |
| 274 | Figure 8 — Adverse effect of a swinging load on load radius |
| 275 | 11.2 Mode of operation and control |
| 276 | 11.3 Handling of loads near persons 11.4 Multi-crane lifting and lowering 11.5 Special duties 12 Lifting of pre-slung loads |
| 277 | 12.1 Single-use slings |
| 278 | 12.2 Lifting pre-slung loads 12.3 Load-resistant nets 13 Slinging and handling of loads 13.1 General 13.2 Signalling systems |
| 279 | 14 In-service and out-of-service wind speeds 14.1 In-service wind speed |
| 280 | 14.2 Consideration of wind speed during planning of lifts |
| 281 | 15 Crane documentation 15.1 Rated capacity charts 15.2 Instruction manuals 15.3 Reports of thorough examination/test certificates 15.4 Maintenance records 15.5 Erection/dismantling and transport 15.6 Operator’s documentation 15.7 Medical records 15.8 Plans and method statements 16 Pre-use checks, maintenance and inspection |
| 282 | 17 Thorough examination, including testing 17.1 General 17.2 Age and utilization 17.3 Change of ownership of the crane |
| 283 | Section 4: Tower crane erection, dismantling and alteration 18 Erection, dismantling and alteration 18.1 Planning |
| 287 | 18.2 Manufacturer’s erection and dismantling instructions |
| 288 | 18.3 Craneage 18.4 Components and materials |
| 290 | Figure 9 — Bolt grip length to diameter |
| 291 | Table 4 — Bolt and nut grades and properties |
| 292 | Figure 10 — Marking on initial installation |
| 294 | 18.5 Electrical supply |
| 295 | 18.6 Personnel 18.7 Briefing of the erection team 18.8 Communication |
| 296 | 18.9 Protection from falls from height 18.10 Control 18.11 Inspection before erection 18.12 Weather conditions |
| 297 | 18.13 Working area and exclusion zones 18.14 Installation and use of self-erecting tower cranes |
| 298 | 19 Tower crane climbing 19.1 General |
| 299 | 19.2 Structural considerations Figure 11 — Typical tie |
| 300 | 19.3 Risk assessment |
| 301 | 19.4 Method statement |
| 302 | 19.5 Climbing process |
| 306 | 19.6 Thorough examination, including testing of the crane after climbing |
| 307 | 19.7 Maintenance of climbing equipment |
| 308 | Annex A (informative) Types of tower crane and associated machinery Figure A.1 — Types of tower |
| 310 | Figure A.2 — Types of jib |
| 313 | Figure A.3 — Types of base |
| 315 | Figure A.4 — Rail-mounted tower crane |
| 316 | Figure A.5 — Lorry-mounted tower crane |
| 317 | Annex B (informative) Example evaluation of potential tower crane usage Figure B.1 — Example evaluation of potential tower crane usage |
| 318 | Annex C (informative) Tower crane classification Figure C.1 — Variation of service life with intensity of loading for Group 3 |
| 319 | Annex D (normative) Emergency plan |
| 323 | Annex E (normative) Rescue from height |
| 327 | Annex F (informative) Tower crane climbing |
| 328 | Figure F.1 — Typical external climbing sequence |
| 329 | Figure F.2 — Typical internal climbing sequence |
| 330 | Annex G (informative) Example of thorough examinations and checks for climbing frame |
| 333 | Annex H (informative) HSE guidance on luffing jib tower cranes |
| 334 | Annex I (normative) Example form showing controls for lifting inside the crane manufacturer’s radius Figure I.1 — Example form for lifting inside the crane manufacturer’s radius |
| 335 | Annex J (normative) Maintenance, inspection and thorough examination Annex K (informative) Hydrogen embrittlement in high-tensile fasteners |
| 337 | Annex L (normative) Recommendations to reduce the probability of failure due to HE |
| 338 | Table L.1 — Comparative testing regime: property grade 10.9/12.9 engineering bolts/ studs |
| 339 | Bibliography |
