{"id":265482,"date":"2024-10-19T17:42:35","date_gmt":"2024-10-19T17:42:35","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-7121-52019\/"},"modified":"2024-10-25T13:40:00","modified_gmt":"2024-10-25T13:40:00","slug":"bs-7121-52019","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-7121-52019\/","title":{"rendered":"BS 7121-5:2019"},"content":{"rendered":"

This part of BS 7121 gives recommendations for the safe use of tower cranes, including self\u2011erecting tower cranes other than mobile self-erecting tower cranes (which are covered in BS 7121\u20113).<\/p>\n

\n

NOTE The types of tower crane are set out in Annex A.<\/p>\n<\/blockquote>\n

Subjects covered include safe systems of work, selection, erection, extension (including climbing), dismantling, maintenance, inspection, thorough examination (including testing), operation, and the planning and management of lifting operations. It also covers the appropriate selection and training of personnel involved in the safe installation and use of tower cranes.<\/p>\n

This part of BS 7121 is intended to be read in conjunction with BS 7121\u20111.<\/p>\n

PDF Catalog<\/h4>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
7<\/td>\nForeword <\/td>\n<\/tr>\n
9<\/td>\n1 Scope
2 Normative references <\/td>\n<\/tr>\n
10<\/td>\n3 Terms and definitions <\/td>\n<\/tr>\n
13<\/td>\nSection 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 <\/td>\n<\/tr>\n
14<\/td>\nFigure 1 \u2014 Flow of information between personnel involved in lifting operations <\/td>\n<\/tr>\n
15<\/td>\n4.3 Duties of the person appointed to control the lifting operation <\/td>\n<\/tr>\n
17<\/td>\nTable 1 \u2014 Example load and environmental hazards associated with lifting operations <\/td>\n<\/tr>\n
18<\/td>\nFigure 2 \u2014 Relationship between complexity index and lift category <\/td>\n<\/tr>\n
19<\/td>\nTable 2 \u2014 Illustration of the categorization of lifts based on environmental and load complexities <\/td>\n<\/tr>\n
21<\/td>\n5 Planning of the lifting operation
5.1 General <\/td>\n<\/tr>\n
23<\/td>\n5.2 Risk assessment
5.3 Method statements <\/td>\n<\/tr>\n
24<\/td>\n5.4 Team briefing\/induction
5.5 Selection of cranes <\/td>\n<\/tr>\n
25<\/td>\n5.6 Siting of crane
5.7 Contracts <\/td>\n<\/tr>\n
26<\/td>\n6 Selection and duties of personnel other than the appointed person <\/td>\n<\/tr>\n
27<\/td>\nSection 2: Selection of tower cranes
7 Selection of tower cranes
7.1 General <\/td>\n<\/tr>\n
30<\/td>\n7.2 Remote controls
8 Siting of crane
8.1 General <\/td>\n<\/tr>\n
31<\/td>\n8.2 Crane standing and support conditions
8.3 Out-of-service wind speed <\/td>\n<\/tr>\n
33<\/td>\nFigure 3 \u2014 UK out-of-service wind region map for tower cranes <\/td>\n<\/tr>\n
34<\/td>\n8.4 Tower crane foundations <\/td>\n<\/tr>\n
37<\/td>\n8.5 Proximity hazards <\/td>\n<\/tr>\n
40<\/td>\nSection 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 <\/td>\n<\/tr>\n
41<\/td>\n9.5 Work at height <\/td>\n<\/tr>\n
42<\/td>\n9.6 Access and egress (including emergency escape) <\/td>\n<\/tr>\n
46<\/td>\nFigure 4 \u2014 Base enclosure <\/td>\n<\/tr>\n
47<\/td>\nFigure 5 \u2014 Anti-climb panels
Figure 6 \u2014 Trapdoor <\/td>\n<\/tr>\n
48<\/td>\nFigure 7 \u2014 Trapdoor and base enclosure lock
9.7 Fire risk assessment and fire extinguishers <\/td>\n<\/tr>\n
49<\/td>\n9.8 Attachments <\/td>\n<\/tr>\n
50<\/td>\n9.9 Limiting and indicating devices <\/td>\n<\/tr>\n
53<\/td>\n9.10 Machinery guarding
9.11 Lightning protection
9.12 Base ballast <\/td>\n<\/tr>\n
54<\/td>\n9.13 Counterweight ballast
9.14 Travel alarms
10 Procedures and precautions
10.1 Operator working hours and resources
Table 3 \u2014 Minimum number of operators required for continuous single shift operation of tower cranes
10.2 Crane operation
10.3 Working on cranes <\/td>\n<\/tr>\n
55<\/td>\n10.4 Crane not in regular use <\/td>\n<\/tr>\n
56<\/td>\n10.5 Reporting of defects and incidents
10.6 Leaving the crane unattended <\/td>\n<\/tr>\n
58<\/td>\n11 Operating conditions
11.1 Rated capacity <\/td>\n<\/tr>\n
59<\/td>\nFigure 8 \u2014 Adverse effect of a swinging load on load radius <\/td>\n<\/tr>\n
60<\/td>\n11.2 Mode of operation and control <\/td>\n<\/tr>\n
61<\/td>\n11.3 Handling of loads near persons
11.4 Multi-crane lifting and lowering
11.5 Special duties
12 Lifting of pre-slung loads <\/td>\n<\/tr>\n
62<\/td>\n12.1 Single-use slings <\/td>\n<\/tr>\n
63<\/td>\n12.2 Lifting pre-slung loads
12.3 Load-resistant nets
13 Slinging and handling of loads
13.1 General
13.2 Signalling systems <\/td>\n<\/tr>\n
64<\/td>\n14 In-service and out-of-service wind speeds
14.1 In-service wind speed <\/td>\n<\/tr>\n
65<\/td>\n14.2 Consideration of wind speed during planning of lifts <\/td>\n<\/tr>\n
66<\/td>\n15 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 <\/td>\n<\/tr>\n
67<\/td>\n17 Thorough examination, including testing
17.1 General
17.2 Age and utilization
17.3 Change of ownership of the crane <\/td>\n<\/tr>\n
68<\/td>\nSection 4: Tower crane erection, dismantling and alteration
18 Erection, dismantling and alteration
18.1 Planning <\/td>\n<\/tr>\n
72<\/td>\n18.2 Manufacturer\u2019s erection and dismantling instructions <\/td>\n<\/tr>\n
73<\/td>\n18.3 Craneage
18.4 Components and materials <\/td>\n<\/tr>\n
75<\/td>\nFigure 9 \u2014 Bolt grip length to diameter <\/td>\n<\/tr>\n
76<\/td>\nTable 4 \u2014 Bolt and nut grades and properties <\/td>\n<\/tr>\n
77<\/td>\nFigure 10 \u2014 Marking on initial installation <\/td>\n<\/tr>\n
79<\/td>\n18.5 Electrical supply <\/td>\n<\/tr>\n
80<\/td>\n18.6 Personnel
18.7 Briefing of the erection team
18.8 Communication <\/td>\n<\/tr>\n
81<\/td>\n18.9 Protection from falls from height
18.10 Control
18.11 Inspection before erection
18.12 Weather conditions <\/td>\n<\/tr>\n
82<\/td>\n18.13 Working area and exclusion zones
18.14 Installation and use of self-erecting tower cranes <\/td>\n<\/tr>\n
83<\/td>\n19 Tower crane climbing
19.1 General <\/td>\n<\/tr>\n
84<\/td>\n19.2 Structural considerations
Figure 11 \u2014 Typical tie <\/td>\n<\/tr>\n
85<\/td>\n19.3 Risk assessment <\/td>\n<\/tr>\n
86<\/td>\n19.4 Method statement <\/td>\n<\/tr>\n
87<\/td>\n19.5 Climbing process <\/td>\n<\/tr>\n
91<\/td>\n19.6 Thorough examination, including testing of the crane after climbing <\/td>\n<\/tr>\n
92<\/td>\n19.7 Maintenance of climbing equipment <\/td>\n<\/tr>\n
93<\/td>\nAnnex A (informative)\u2002 Types of tower crane and associated machinery
Figure A.1 \u2014 Types of tower <\/td>\n<\/tr>\n
95<\/td>\nFigure A.2 \u2014 Types of jib <\/td>\n<\/tr>\n
98<\/td>\nFigure A.3 \u2014 Types of base <\/td>\n<\/tr>\n
100<\/td>\nFigure A.4 \u2014 Rail-mounted tower crane <\/td>\n<\/tr>\n
101<\/td>\nFigure A.5 \u2014 Lorry-mounted tower crane <\/td>\n<\/tr>\n
102<\/td>\nAnnex B (informative)\u2002 Example evaluation of potential tower crane usage
Figure B.1 \u2014 Example evaluation of potential tower crane usage <\/td>\n<\/tr>\n
103<\/td>\nAnnex C (informative)\u2002 Tower crane classification
Figure C.1 \u2014 Variation of service life with intensity of loading for Group 3 <\/td>\n<\/tr>\n
104<\/td>\nAnnex D (normative)\u2002 Emergency plan <\/td>\n<\/tr>\n
108<\/td>\nAnnex E (normative)\u2002 Rescue from height <\/td>\n<\/tr>\n
112<\/td>\nAnnex F (informative)\u2002 Tower crane climbing <\/td>\n<\/tr>\n
113<\/td>\nFigure F.1 \u2014 Typical external climbing sequence <\/td>\n<\/tr>\n
114<\/td>\nFigure F.2 \u2014 Typical internal climbing sequence <\/td>\n<\/tr>\n
115<\/td>\nAnnex G (informative)\u2002 Example of thorough examinations and checks for climbing frame <\/td>\n<\/tr>\n
118<\/td>\nAnnex H (informative)\u2002 HSE guidance on luffing jib tower cranes <\/td>\n<\/tr>\n
119<\/td>\nAnnex I (normative)\u2002 Example form showing controls for lifting inside the crane manufacturer\u2019s radius
Figure I.1 \u2014 Example form for lifting inside the crane manufacturer\u2019s radius <\/td>\n<\/tr>\n
120<\/td>\nAnnex J (normative)\u2002 Maintenance, inspection and thorough examination
Annex K (informative)\u2002 Hydrogen embrittlement in high-tensile fasteners <\/td>\n<\/tr>\n
122<\/td>\nAnnex L (normative)\u2002 Recommendations to reduce the probability of failure due to HE <\/td>\n<\/tr>\n
123<\/td>\nTable L.1 \u2014 Comparative testing regime: property grade 10.9\/12.9 engineering bolts\/ studs <\/td>\n<\/tr>\n
124<\/td>\nBibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Code of practice for safe use of cranes – Tower cranes<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
BSI<\/b><\/a><\/td>\n2019<\/td>\n128<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":265487,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[836,2641],"product_tag":[],"class_list":{"0":"post-265482","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-53-020-20","7":"product_cat-bsi","9":"first","10":"instock","11":"sold-individually","12":"shipping-taxable","13":"purchasable","14":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/265482","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/265487"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=265482"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=265482"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=265482"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}