mast climber safety
TRANSCRIPT
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Mast Climber SafetyMichael Alacha, P.E.
Assistant Commissioner, Engineering + Emergency Operations
Ashraf Omran, P.E.
Technical Director, Cranes & Derricks
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The NYC Department of Buildings is a registered Provider with The
American Institute of Architects Continuing Education Systems (AIA/
CES). Credit earned on completion of this program will be reported to
AIA/CES for AIA members. Certificates of Completion for bothmembers and non-AIA members are available upon request.
This program is registered with the AIA/CES for continuing
professional education. As such, it does not include content that may
be deemed or constructed to be an approval or endorsement by the
AIA of any material of construction or any method or manner of
handling, using, distributing, or dealing in any material or product.
Questions related to specific materials, methods, and services will be
addressed at the conclusion of this presentation.
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Course Description
During this course, participants will learn the purpose
of a Mast Climber, how it will be designed, setup,
inspected and utilized on the job site.
Additionally, attendees will learn safety requirements
for installing, using, operating and removing Mast
Climbers to avoid potential safety hazards.
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Learning Objectives
1. Participants will be familiarized with the different types of
Mast Climbers and be able to describe their distinctive
functions.2. Participants will examine the requirements for Mast
Climbers and apply these provisions to its design,
installation and inspection.
3. Participants will review examples of Mast Climber safety
hazards to identify potential safety issues and strategies
for prevention.
4. Participants will review the Mast Climber rule in order tomitigate risk.
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What is a Mast Climber?
Mast climbers consist of a mast and a platform that can
ride up and down the mast.
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Types of Mast Climbers
Twin Mast
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Mast Climber Purposes
Construction, Demolition and Renovation:
Faade Work
Curtain Walls / Glazers
Masonry
Water Proofing
EIFS Exterior Insulation Finishing System
Metal Framing
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Mast Climber Benefits
Improves Stability
Increases Productivity
Reduces Workers Fatigue
Decreases the Risk of Injuries
Improves Safety and Efficiency
Accelerates Installation Time
Combines Lifts of Workers, Tools and Materials
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Accidents
Accident During Dismantling:
When the second tiewas removed, the
imbalanced tower
pivoted on the
remaining tie and thebottom kicked out.
August 11, 2009
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Accidents
During climbing, one side of the climbing apparatus
did not properly engage the rung and slipped off.
September 18, 2009
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Accidents
Improper Footing / Foundation
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Mast Climber Rule
02-17-2011: Mast Climber Rule (3314-01) in Effect
07-01-2011: Mast Climber Training Requirements in Effect
07-01-2012: Mast Climber Prototype AmendmentRequirements in Effect
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Requirements for Using Mast Climbers in NYC:
Certificate of Approval (Prototype)
Certificate of Operation
Certificate of On-Site Inspection
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Certificate of Approval (Prototype): MC-1
Owners Manual
Operators Manual
Capacity Chart(s)
Annual Inspection Checklist
Advertising Brochure
Free Standing Height Information
Wind Speed Information
Listing of Safety Devices
Additional Points of Contact
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Certif icate of Operation: MC-2
Inspection Checklist
List of Critical Components
Photos
Disclosure of History
Letter Identifying Service Support Contact
Letter Identifying Technical Support Contact
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Mast Climber Notice: MC-4
A professional engineer shall file a Mast Climber Notice
application with the Department.
The application shall contain the following information:
Ground and Subsurface Conditions
Footings, Foundations and Structures Setup Plan
Pull Out Test When Applicable
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Department Data
23 Certificates of Approval (Prototype)
348 Certificates of Operation
239 Certificates of On-Site Inspection
(Mast Climber Notice, From 2-17-2011 to 04-12-2013)
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Mast Climber Design
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Mast Climber Design
Ground and Subsurface Conditions:
Identification of All Pertinent Ground andSubsurface Conditions
Certification From The Engineer
Plans
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Mast Climber Design
Footings, Foundations and Structures:
Ground Anchorage, Outriggers, or Dunnage
Plans Showing Support Connection of the Mast Climberto the Foundation
Plans Showing the Tie-in Connection of the Mast Climber to
the Structure
Loads Imposed:
1. Under Construction
2. Existing Structure
Wind Loading for In-Service and Out-of-Service Conditions Engineer Certification and Calculations
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Mast Climber Design: Foundation
A mast climber base supported on a sidewalk:
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Mast Climber Design: Foundation
Mast climber base supported on a steel frame tied to
existing steel structure:
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Mast Climber Design: Foundation
Mast climber base supported on an outrigger beams
and anchored and shored to slabs:
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Mast Climber Design: Foundation
This mast climberbase is supported
on outrigger
beams and is
anchored andshored to slabs.
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Mast Climber Design: Foundation
Mast climber base supported on a steel tower
and frame:
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Mast Climber Design: Tie-in Connections
Tie-in connection attached to the slab:
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Mast Climbers Design: Tie-in Connections
Tie-in connection attached to concrete spandrel beam:
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Mast Climbers Design: Tie-in Connections
Tie-in connection attached to steel spandrel beam:
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Mast Climber Safety Hazards
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Safety Hazards
Installation
Operation/ Moving
Removal
Fall Protection
Wind and Out-of-Service
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Safety Hazards: Installation
Out of plumb:
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Safety Hazards: Operation/ Moving
During climbing, one side of the climbing apparatus
did not properly engage the rung and slipped off.
September 18, 2009
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Safety Hazards: Removal
This accident occurred during dismantling.
August 11, 2009
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Safety Hazards: Fall Protection
Missing Fall Protection:
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Mast Climber Risk Mitigation
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Mast Climber Risk Mitigation
1. Manufacturers Safety Bulletins, Recall Notices and Updates
2. Engineers Inspection - MC-5
3. Owners Inspection - MC-5
4. Mast Climber Training Requirements:
a) Installation or Removal
b) Operation or Use
c)Approved Training Providers
5. Mast Climbers Installer or Remover - MC-3
6. Safety Meetings & Safety Talks
7. Safety Notes
8.
Repairs, Adjustments and Maintenance9. Logs
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Mast Climber Risk Mitigation
1. Manufacturers Safety Bulletins, Recall Notices
and Updates
Manufacturers shall provide the following to the Department:
All Safety Bulletins and Recall Notices Within Five (5) Business
Days of Issuance
All Updated Manufacturers Owners and Operators Manual(s)Within Thirty (30) Business Days of Issuance
All Updated Points of Contacts for Technical and/or Service
Questions Within Five (5) Business Days of The Change
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2. Engineers Inspection Certif icate of on-Site
Inspection - MC5
Installed in accordance with approved plans Tie-in Connections
Anchorages
Ground Conditions/ Footing/ Foundations
Structural Support(s)
Pull out Test(s)
Plumbness
Photographs
Reports shall be submitted within two business days.
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Mast Climber Risk Mitigation
2. Engineers Inspection Foundation
Mast climber base
is supported on
a cantilever steel
bracket tied to existingsteel structure.
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2. Engineers Inspection Foundation Anchorage
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2. Engineers Inspection Plumbness
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Mast Climber Risk Mitigation
2. Engineers Inspection - Plumbness
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2. Engineers Inspection - Pull-Out-Test
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2. Engineers Inspection - Tie-in Connections
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Mast Climber Risk Mitigation
2. Engineers Inspection - Tie-in-Connection
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3. Owners Inspection Certif icate of on-Site
Inspection MC5
The Equipment Owner, or an Authorized Representative
Verification of the Critical Components.
Compliance with ANSI/SIA A92.9-1993 Section 6.4
Reports shall be submitted within two business days.
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3. Owners Inspection Certif icate of on-site
InspectionMC5
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Mast Climber Risk Mitigation
4. Mast Climber Training Requirements (Continued)
c) Mast Climber Training Providers:Providers shall be approved by the Department of
Buildings. A Provider shall either be:
A registered NYS Department of Labor
Apprenticeship Training Program
An Educational Institution or School
Mast Climber Manufacturer
Mast Climber Owner Any Other Entity Acceptable to The Department
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Mast Climber Risk Mitigation
6. Safety Meetings / Talks
Safety Meetings: 24 hours prior to the commencement ofinstallation or removal operations
Safety Talks: Prior to the first use of the mast climber
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7. Safety Notes
Platform Location Shall Remain Stationary at Lowest Position
after Installation and Prior to Plumbness Verification, Anchor
Bolt Torque Test and Welding Inspection
Platform Shall be Brought to the Lowest Position and Remain
Stationary for out of service
Wind Speed Maximum Safe in-Service and Out-of-ServiceInformation Shall be Provided for all Configurations
The Use and Operation of The Mast Climber Shall Cease if
Winds Exceed 30 m/h or at Lower Wind Speed WhenRecommended by the Manufacturer
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Mast Climber Risk Mitigation
Mast Climber platform location for out-of-service:
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Mast Climber Risk Mitigation
8. Repairs, Adjustments and Maintenance
All Repairs, Adjustments and Maintenance made to any Mast
Climber Part or Component Shall be made by a Qualified
Person(s)
Repairs Shall Be in Accordance With the Followings:
a) Manufacturers Specificationb) ANSI/SIA A92.9- 1993 Requirements
c) At Least The Manufacturers Original Factor of Safety
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9. Logs
Logs shall be kept up-to-date and contain the following:
Installation or Removal Supervisor Information
Safety Meetings and Talks
Supervisor and Workers Training Information for Installation,
Removal and Operation
Accidents
Repairs and Adjustments
Any Hazardous Conditions
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Questions?
This concludes the American Institute of Architects
Continuing Education Systems Course.
AIA Point of Contact
Allison Ginsburg
212 566 4415
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Mast Climber Safety
Michael Alacha, P.E.Assistant Commissioner, Engineering + Emergency Operations
Ashraf Omran, P.E.Technical Director, Cranes & Derricks