When industry and labor work together, we can save lives. PowerPoint PPT Presentation

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Title: When industry and labor work together, we can save lives.


1
OSHAS NEW STEEL ERECTION STANDARD
  • When industry and labor work together, we can
    save lives.

2
Steel Erection Activities
  • Every year, an average of 35 iron workers die
    during steel erection activities and 2,300 more
    suffer lost workday injuries,"

3
Standard
  • New subpart R is the first OSHA safety standard
    developed under the Negotiated Rulemaking Act
  • Developed by members of the Steel Erection
    Negotiated Rulemaking Advisory Committee (Senrac)

4
The Final Rule Contains Requirements For
  • Hoisting and rigging
  • Structural Steel Assembly
  • Beam and Column connections
  • Joist Erection
  • Systems-engineered Metal Building Erection
  • Fall Protection
  • Training

5
The new standard covers all workers engaged in
steel erection activities
  • The Standard does not cover electric transmission
    towers, communication towers, broadcast towers,
    water towers or tanks

6
Effective Dates
  • Original effective date July 18, 2001
  • Revised effective date Jan. 18, 2002.

7
Additional Time
  • Gives industry time to become familiar with the
    new requirements and to provide training to
    employees in the construction industry.
  • Allow employers time to make the necessary
    changes to avoid costly re-fabrication of already
    made components and avoid serious delays to
    projects that would affect all trades involved in
    the construction process.

8
Question
  • Is the construction of a house framed with metal
    studs within subpart R?
  • No. A housed framed with metal studs is not
    covered by the standard

9
Question
  • When would the installation of metal studs be
    covered by subpart R?
  • The installation of metal studs is covered by
    Subpart R when the studs are integrated with the
    structural steel framing of a building.

10
Question
  • Is the installation of a standing seam metal roof
    on a wood framed structure covered by subpart R?
  • Yes. The definition of metal decking includes
    standing seam metal roofs.

11
Question
  • A fabricated tank is installed on a pad. The
    tank has connection points for a catwalk
    pre-installed by the manufacturer. The catwalk
    will be installed by a crane crew after the tank
    is installed. Do the fall protection
    requirements of subpart R apply to the
    installation of the catwalk?

12
Answer
  • Yes. Catwalks has traditionally been considered
    miscellaneous metals, and the installation of
    miscellaneous metals is covered by Subpart R?

13
Major causes of injuries and fatalities in the
steel erection industry
  • Working under loads
  • Hoisting, landing and placing decking
  • Column stability
  • Double connections
  • Landing and placing steel joints
  • Falls to lower levels.

14
1926.751
  • Definitions

15
Competent Person
  • Means one who is capable of identifying
    existing and predictable hazards in the
    surroundings or working conditions which are
    unsanitary, hazardous, or dangerous to employees,
    and who has authorization to take prompt
    corrective measures to eliminate them.

16
Controlling Contractor
  • Means a prime contractor, general contractor,
    construction manager or any other legal entity
    which has the overall responsibility for the
    construction of the project -- its planning,
    quality and completion.

17
Qualified person
  • One who, by possession of a recognized degree,
    certificate, or professional standing, or who by
    extensive knowledge, training, and experience,
    has successfully demonstrated the ability to
    solve or resolve problems relating to the subject
    matter, the work, or the project.

18
Shear Connector
  • Headed steel studs, steel bars, steel lugs, and
    similar devices which are attached to a
    structural member for the purpose of achieving
    composite action with concrete.

19
Site-Specific Erection Plan
  • Requires pre-planning of key erection elements,
    including coordination with controlling
    contractor before erection begins, in certain
    circumstances.

20
Steel Erection
  • Construction, alteration or repair of steel
    buildings, bridges and other structures,
    including the installation of metal decking and
    all planking used during the process of erection.

21
1926.752
  • Site Layout Construction Sequence

22
Controlling Contractor
  • Steel Erector provided notification of
  • Concrete having attained sufficient strength.
  • Alteration of anchor bolts.
  • Adequate access to storage areas.
  • That concrete has cured enough to support steel
    erection

23
Hoisting operations
  • Must be pre-planned to reduce employee exposure
    to overhead loads.

24
Question
  • Can the controlling contractor contract with
    subcontractor to perform the work required by
    1926.752(a)? If so, is the controlling
    contractor still responsible for these duties
    after subcontracting them?
  • Yes. The Controlling contractor is responsible
    for ensuring that the work was performed.

25
Question
  • Does the written notification from the
    controlling contractor to the steel erector about
    concrete footing, etc. in 1926.752(a) (b) have
    to be maintained on site?
  • Once the written notification is given to the
    erector, there is no requirement that it be
    maintained at the site.

26
Question
  • Does the anchor bolt repair, replacement or field
    -modification approval from the Structural
    Engineer of Record (SER) required by
    1926.755(b)(1) have to be maintained on site?
  • No. Once the written notification is given, it
    does not have to be maintained on site.

27
1926.753
  • Hoisting Rigging

28
1926.753 - Hoisting and rigging(Supplement to
the requirements of 1926.550)
Construction Safety Council
29
Pre-shift Inspection Requirements
  • Pre-shift inspection must be done by a competent
    person.
  • Rigging must be inspected prior to each shift by
    a qualified rigger

30
Pre-shift visual inspection of cranes
  • all control mechanisms for maladjustments
    excessive wear of components and contamination by
    lubricants or other foreign matter
  • safety devices
  • hooks and latches
  • pressurized lines for leakage
  • wire rope
  • electrical apparatus
  • hydraulic system
  • tires
  • ground conditions
  • hoisting equipment

Construction Safety Council
31
General
  • The employer shall obtain and/or prepare a
    certification record of the pre-shift inspection

Construction Safety Council
32
General
  • The operator shall be responsible for those
    operations under the operators direct control

Construction Safety Council
33
General
  • Qualified rigger to inspect the rigging prior to
    each shift
  • Headache ball not used to transport personnel
  • Only use of personnel platforms in accordance
    with 1926.550 (g)

Construction Safety Council
34
Safety Latches
  • Safety latches on hooks shall not be deactivated.

Construction Safety Council
35
Responsibilities During Crane Operations
  • Safety latches
  • Employees engaged in initial steel erection or
    hooking/unhooking to work under loads in some
    specific instances.
  • Operators are responsible for operations under
    their control and have the authority to stop and
    refuse to handle loads until safety has been
    assured.

36
Responsibilities During Crane Operations
  • Prohibit the use of cranes to hoist personnel
    unless ALL provisions of 1926.550 are met except
    1926.550(g)(2)
  • When working under loads requirements in this
    section must be followed.
  • Multiple lift rigging is permitted as long as the
    requirements in this erection are met. .753(d).

37
Working Under Loads
  • Materials being hoisted shall be rigged to
    prevent unintentional displacement
  • Hooks with self-closing safety latches or their
    equivalent shall be used to prevent components
    from slipping out of the hook and
  • All loads shall be rigged by a qualified rigger

38
Question
  • Does the standard permit a qualified rigger to
    design and assemble a multiple lift rigging
    assembly on the jobsite by mixing components from
    one rigging supplier or by mixing components from
    several rigging suppliers?
  • Yes

39
Question
  • How often must the multiple lift rigging assembly
    be inspected?
  • Before every shift.

40
Question
  • The crane is rented, and the operator is supplied
    by the crane rental company. The steel erector
    designates the operator as the competent person
    for the purposes of the pre-lift inspection
    requirements. Is the steel erector still
    responsible for the pre-lift inspection?
  • Yes

41
1926.754
  • Structural Steel Assembly and Stability

42
1926.754 Structural Steel Assembly
  • Structural stability shall be maintained
  • Additional requirements shall apply for
    multi-story structures
  • The permanent floors shall be installed no more
    than eight stories between the erection floor and
    the upper-most permanent floor.
  • No more than four floors or 48 feet (14.6 m),
    whichever is less, of unfinished bolting or
    welding above the foundation or uppermost
    permanently secured floor
  • Fully planked or decked floor or nets shall be
    maintained within two stories or 30 feet (9.1 m),
    whichever is less, directly under any erection
    work being performed.

43
1926.754(c)Walking/Working Surfaces
  • Shear connectors (such as headed steel studs,
    steel bars or steel lugs), reinforcing bars,
    deformed anchors or threaded studs shall not be
    attached to the top flanges of beams, joists or
    beam attachments so that they project vertically
    from or horizontally across the top flange of the
    member until after the metal decking, or other
    walking/ working surface, has been installed.

44
Installation of shear connectors on composite
floors, roofs and bridge decks.
  • When shear connectors are used in construction of
    composite floors, roofs and bridge decks,
    employees shall lay out and install the shear
    connectors after the metal decking has been
    installed, using the metal decking as a working
    platform. Shear connectors shall not be installed
    from within a controlled decking zone (CDZ), as
    specified in 1926.760(c)(8).

45
Slip resistance of skeletal structural steel.
  • Workers shall not be permitted to walk the top
    surface of any structural steel member installed
    after July 18, 2007 that has been coated with
    paint or similar material
  • The results shall be available at the site and to
    the steel erector.

46
Plumbing-up Equipment
  • turnbuckles
  • properly secured
  • secured to prevent unwinding
  • placed so employees can get to connection points
  • removed only under the supervision of a competent
    person

Construction Safety Council
47
Question
  • 1926.754(b)(3) requires a fully planked or decked
    floor or nets within 2 stories or 30 feet,
    whichever is less. Can an employers requirement
    that workers be protected by fall arrest
    equipment at all times above 6 feet take the
    place of nets and temporary floors?
  • Yes. If he establishes, communicates enforces
    policy.

48
Question
  • If a roof opening is 11 inches by 25 feet, does
    it need to be covered for steel erection
    purposes.
  • No. The definition of an opening refers to a gap
    whose least dimension is 12 inches or more.

49
1926.755
  • Column Anchorages

50
General requirements for erection stability
  • Columns anchored by a min. of 4 bolts and
    designed to resist a 300 eccentric load at 18
    from the column face.
  • Columns set on level finished floors, pre-grouted
    leveling plates, leveling nuts, or shim packs.
  • Unstable columns shall be evaluated by a
    competent person.

Construction Safety Council
51
(b)Repair, replacement or field modification
(1)Need approval of the project structural
engineer. (2)Approval shall state whether guying
or bracing is necessary. (3)Controlling
contractor shall provide written notification to
the steel erector.
Construction Safety Council
52
Question
  • To make a field repair to an anchor rod, must
    there be a written order from the projects
    engineer of record?
  • No. The standard does not require that the
    approval be in writing.

53
1926.756
  • Beams and Columns

54
Beams and Columns
  • General. Secured with at least two bolts per
    connection.
  • Diagonal bracing. With bracing, secured by at
    least one bolt per connection.

55
Beams and Columns
  • Double connections at columns and/or at beam webs
    over a column. At least one bolt or similar
    connection device is present.

56
Beams and Columns
  • Column splices. Designed to resist a 300
    eccentric load located at 18 from column face.
  • Perimeter columns. Must extend a min. of 48
    above the finished floor for safety cables.

57
Multiple Lift Rigging
Construction Safety Council
58
Multiple Lift Rigging
  • multiple lift rigging assembly is used
  • maximum of five members is hoisted per lift
  • only structural members are lifted and
  • employees engaged in the lift have been trained
    in the procedures in 1926.761 (c)(1)

Construction Safety Council
59
(4)The multiple lift rigging assembly shall be
rigged with the members
rigged at least 7 feet apart
rigged from the top down
attached at their center of gravity and
maintained level
Construction Safety Council
60
Multiple Lift Rigging
  • Components of the multiple lift rigging assembly
    shall be specifically designed and assembled with
    a maximum capacity for total assembly and for
    each individual attachment point.
  • Capacity must be certified by the manufacturer or
    a qualified rigger and have a 5 to 1 safety
    factor

Construction Safety Council
61
Multiple Lift Rigging
  • The total load shall not exceed
  • The rigging capacity
  • The rated capacity of the hoisting equipment
  • The multiple lift rigging assembly shall be
    rigged with the members
  • attached at their center of gravity and
    maintained level
  • rigged from the top down and
  • rigged at least 7 feet apart

Construction Safety Council
62
Multiple Lift Rigging
  • The members on the multiple lift rigging assembly
    shall be set from the bottom up.
  • Controlled load lowering shall be used whenever
    the load is over the connectors.

Construction Safety Council
63
1926.757
  • Open Web Steel Joists

64
Open Web Steel Joists
  • Requirements minimizing collapse of lightweight
    steel joists by addressing need for erection
    bridging and method of attachment.
  • Requirements for bridging terminus anchors with
    illustrations and drawings in a non-mandatory
    appendix (provided by SJI).
  • New requirements to minimize collapse in placing
    loads on steel joists.

65
Question
  • If workers are on a one story building that is 20
    feet tall (top of steel) and the joist require
    horizontal bridging, is fall protection required
    for employees installing bridging?
  • Yes.

66
1926.758
  • Systems-Engineered Metal Buildings

67
Systems-Engineered Metal Buildings
  • Requirements to minimize collapse in the erection
    of these specialized structures which account for
    a major portion of steel erection in this country.

68
Systems-Engineered Metal Buildings
  • Structural column shall have a minimum of 4
    anchor bolts.
  • Rigid frames shall have a minimum of 50 of
    install tightened on both sides of the web
    adjacent to each flange before hoisting equipment
    is released.
  • Construction loads may not be placed on
    structural steel framework unless it is
    adequately secured.

69
Systems-Engineered Metal Buildings
  • Steel joist secured before releasing hoisting
    cables, allowing employees on joist, or placing
    construction loads on joist.
  • Purlins Girts may not be used as anchorage
    points without written approval from qualified
    person.
  • Permanent bridging installed and fall protection
    provided before purlins are used as a
    walking/working surface.

70
1926.759
  • Falling Object Protection

71
Falling Object Protection
  • All materials, equipment, and tools that are not
    being used must be secured against accidental
    displacement.
  • Controlling contractor must bar other
    construction processes below steel erection,
    unless overhead protection is provided.

72
1926.760
  • Fall Protection

73
General requirements
  • Anyone over 15 feet, except in (a)(3)
  • (2)Fall protective systems shall conform to
    1926.502.
  • (3)Connectors and employees working in
    controlling decking zones protected from fall
    hazards as provided in (b) and (c) of this
    section.

Construction Safety Council
74
Connectors
  • Protected when more than two stories or 30 feet
    above a lower level
  • Complete connector training in accordance with
    1926.761 and
  • Provided with fall arrest or fall restraint
    systems when 15 to 30 above a lower level.

Construction Safety Council
75
Question
  • At what height are connectors required to be
    protected from falls? Is there a conflict
    between 1926.760(b)(1) 1926.760(b)(3)?
  • 30 feet or 2 stories.
  • (b)(3) requires that employees be provided with
    fall protection equipment and be able to tie off
    at all times between 15-30 feet

76
Custody of Fall Protection
  • Fall protection shall remain in an area to be
    used by other trades if controlling contractor
  • Has directed the steel erector to leave the fall
    protection in place.
  • Has inspected and accepted control and
    responsibility of the fall protection prior to
    authorizing persons to work in the area.

Construction Safety Council
77
Working Under Loads
  • Routes for suspended loads shall be pre-planned
  • When working under suspended loads, the following
    must be meet
  • materials rigged to prevent unintentional
    displacement
  • self-closing safety latches shall be used
  • all loads rigged by qualified riggers.

Construction Safety Council
78
Controlled Decking Zone (CDZ)
  • Controlled decking zone (CDZ) provisions to
    prevent decking fatalities.
  • Deckers in a CDZ and connectors must be protected
    at heights greater than two stories or 30 feet.
    Connectors between 15 and 30 feet must wear fall
    arrest or restraint equipment and be able to be
    tied off or be provided another means of fall
    protection.
  • Requires fall protection for all others engaged
    in steel erection at heights greater than 15
    feet.

79
1926.761 Training
  • Requires qualified person to train exposed
    workers in fall protection.
  • Requires qualified person to train exposed
    workers engaged in special, high risk activities

80
Multiple Lift Rigging Procedure
  • The nature of the hazard associated with multiple
    lifts
  • Proper procedures equipment to perform multiple
    lifts required by 1926.753(e)

81
Connector Procedures
  • The nature of the hazard associated with
    connecting.
  • The establishment, access, proper
    connecting,techniques and work practices required
    by 1926.756(c) 1926.760(b).

82
Controlled Decking Zone
  • The nature of the hazard associated with work
    within the controlled decking zone.
  • The establishment, access, proper
    connecting,techniques and work practices required
    by 1926.754(e) 1926.760(c).

83
  • DISCLAIMER
  • This information has been developed by an OSHA
    Compliance Assistance Specialist and is intended
    to assist employers, workers, and others as they
    strive to improve workplace health and safety.
    While we attempt to thoroughly address
    recordkeeping, it is not possible to include
    discussion of everything necessary to ensure a
    healthy and safe working environment in a
    presentation of this nature. Thus, this
    information must be understood as a tool for
    addressing workplace hazards, rather than an
    exhaustive statement of an employers legal
    obligations, which are defined by statute,

84
  • DISCLAIMER
  • regulations, and standards. Likewise, to the
    extent that this information references practices
    or procedures that may enhance health or safety,
    but which are not required by a statute,
    regulation, or standard, it cannot, and does not,
    create additional legal obligations. Finally,
    over time, OSHA may modify rules and
    interpretations in light of new technology,
    information, or circumstances to keep apprised
    of such developments, or to review information on
    a wide range of occupational safety and health
    topics, you can visit OSHAs website at
    www.osha.gov
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