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Disclaimer
This publication is prepared by the Construction
Enquiries
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Guidelines on Safety of Tower Cranes
Publication No. 1
Guidelines on Safety of Tower Cranes
A. Purpose
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C. Introduction
For the avoidance of doubt, notwithstanding such intention, this publication is issued by CIC for reference by industry stakeholders only and will not constitute professional advice on tower crane operations or any other issues. The parties using this publication should therefore seek appropriate advice from their professional advisers. CIC (including its members and employees) will NOT accept responsibilities for any consequences resulting from the use of or failure to use this publication.
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Guidelines on Safety of Tower Cranes
D. Measures for Enhancing Safety of Tower Cranes
E. Checking before Erection of Tower Cranes
(i) Pre-delivery checking
(ii) Checking of anchorage
(iii) Checking of supporting structure
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(iv) Derrick crane
F. Improvements of Site Supervision
(i) Appointment of supervising engineer
and
(ii) Risk Assessment
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(iii) Pre-installation checking
(iv) Pre-operation checking
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Procedures for Pre-Delivery Checking
Purpose
Engagement of CME
Provision of Documents by the Owner
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Guidelines on Safety of Tower Cranes
Tie bar Tie bar Tie bar
1 2 3 6
Tower mast sections
Jib Trolley
E F F F F
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Item Main components QtyOwner’s Manufacturer’s
codeMain dimensions Year Remarks
1 Q200
2
/ chassis
3 Tower mast sections 1 M1
1 M6 Base section,
1 M1
1 T1 A202
6 1 C1 12m
Jib
1
Type F
1 Type E 2 tonnes each
1
1 Trolley
10 1 H1
11 Trolley 1 T1
12 1 TC1
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Critical parts Acceptance criteria Condition acceptable
Yes No Remarks
3.1 Main structural parts
_________________
_________________
_________________
_________________
(c) Tower mast sections
_________________
_________________
_________________
_________________
_________________
_________________
_________________
_________________
_________________
_________________
_________________
_________________
_________________
_________________
_________________
_________________
_________________
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Critical parts Acceptance criteria Condition acceptable
Yes No Remarks
3.2 Accessories
_________________
_________________
_________________
_________________
_________________
_________________
_________________
_________________
_________________
_________________
_________________
_________________
_________________
_________________
_________________
_________________
_________________
_________________
_________________
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4. DIMENSIONAL EXAMINATION
Critical parts Acceptance criteria Condition acceptable
Yes No Remarks
(a) Mast section connections
_________________
_________________
(b) Jib section connections
_________________
_________________
(c) Tie bar connections
_________________
_________________
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The repair and maintenance record prepared by the tower crane owner should include
Critical parts Acceptance criteria Condition acceptable
Yes No Remarks
_________________
(b) Motors
_________________
_________________
_________________
_________________
_________________
_________________
_________________
_________________
_________________
_________________
_________________
_________________
_________________
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6. SUMMARY OF FINDINGS
The critical parts listed below are not in acceptable condition, and are required
Critical part Details of non-conformance
(a) _____________ _________________________________________
(b) _____________ _________________________________________
(c) _____________ _________________________________________
6.2 Maintenance logbook
is not
Critical part
(a) ___________________________________________
(b) ___________________________________________
(c) ___________________________________________
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6.3 Non-destructive test reports
(a) Bolts and pins
Yes
__________________________________________________
Yes
__________________________________________________
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Report for Risk Assessment
Purpose
Overview
(A) Introduction
(B) Hazard assessment
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(D) Personal particulars of crew members
(E) Manufacturer’s Manual
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Possibility(P)
Mild(1) Residual
Public(P)Action
May be Possible(3) P*C
Asset(A)
Impossible(1)
Required
SAMPLE
tower crane
3 12
Mechanic
mast to tower crane
to mast)
3 12
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equipment (PPE)
3 12
3 3
materials and to choose a suitable and
materials suitably and less than 2 metres
6(3x3) Foreman
3 12
3 12
weather report) when wind speed exceeds
3 12
suitable control rope and monitor the use
Possibility(P)
Mild(1) Residual
Public(P)Action
May be Possible(3) P*C
Asset(A)
Impossible(1)
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(2) Commencing works procedure
3 12
properly, and then hammer the 3 12
3 12
To install two mono-rails at the 3 12
3 12
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3 12
3 12
3 12
Possibility(P)
Mild(1) Residual
Public(P)Action
May be Possible(3) P*C
Asset(A)
Impossible(1)
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3 12
3 12
them in the correct position and to start
tower crane to hoist mono-rail to
3 12
3 12
the mast, and then hammer out
3 12
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chassis and dismantle the telescopic 3 12
them in the correct position and to start
appropriate positions and hammer
3 12
3 12
Possibility(P)
Mild(1) Residual
Public(P)Action
May be Possible(3) P*C
Asset(A)
Impossible(1)
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(3) Completion of works
procedure
not properly put away, and a tower crane is
3 12
(4) Emergency
3 12
there is the need to send casualties to
Possibility(P)
Mild(1) Residual
Public(P)Action
May be Possible(3) P*C
Asset(A)
Impossible(1)
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1A
1B
1C
1E
1F
2
3 60000 mm
2130 mm
6
mast 6000 mm
mast 6000 mm
mast 6000 mm
10 mast 6000 mm
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Sample Method Statement for Dismantling of Tower Crane
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Important Points
Hand tools must be tied to the appropriate
position with a rope
Sample Tower Crane Dismantling Procedures
Basement
Hydraulic 2 m
10 m
For the purpose
not dismantle
ballast
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Important Points
maintained with the tower crane
wire rope
the tower craneHand tools must be tied to the appropriate
position with a rope
Sample Tower Crane Dismantling Procedures
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Basement
Hydraulic
Control rope
21 m
Sample Tower Crane Dismantling Procedures
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Important Points
Hand tools must be tied to the appropriate
position with a rope
so as to maintain a correct central
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Important Points
Hand tools must be tied to the appropriate
position with a rope
Sample Tower Crane Dismantling Procedures
10 m
Basement
Hydraulic21 m
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Sample Tower Crane Dismantling Procedures
11 m
Basement
Control
rope Control
rope
Hydraulic21 m
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Important Points
Hand tools must be tied to the appropriate
position with a rope
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Important Points
Hand tools must be tied to the appropriate
position with a rope
Sample Tower Crane Dismantling Procedures
Basement
Hydraulic
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Important Points
Hand tools must be tied to the appropriate
position with a rope
Sample Tower Crane Dismantling Procedures
Basement
Hydraulic
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Important Points
operate the oxy-acetylene torch
Fire/explosion
Sample Tower Crane Dismantling Procedures
End
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PostContact
Telephone
Competent
Person
Up on the
tower crane
Sample Appointment Letter of Competent Persons
of Tower Crane Dismantling
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of Site Personnel Engaged in Tower Crane Operations
Competent Person
(A) Role
(C) Experience
(D) Training
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1
Summary of Recommended Improvement Measures
(i) Tower crane owners
publication
(ii) Tower crane owners
Principal Contractors publication
(iii)
structure
Tower crane owners
Principal Contractors publication
E Checking before Erection of Tower Crane
F Improvement of site supervision
(i) Principal Contractors
publication
(ii)
method statement
Principal Contractors Already
implemented
(iii) Principal contractors
publication
Principal contractors
publication
Principal contractors Already
implemented
G
contractors
Principal contractors
publication
H
of competent persons
and workmen
Principal contractors Already
implemented1
Section and
subsection
in main Improvement Measures Implementing parties
Implementation
timeframe