Steel Erection
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is for guidance purposes only. You should independently verify and satisfy yourself as to its accuracy. The AHBSIF
does not assume any liability for damages arising from the use of this information or exhibits and attachments thereto
and renders no opinion that any of the terms, conditions, and/or cited federal standards in this document and the
exhibits and attachments should be explicitly followed by the fund member. Seek specific guidance from the
appropriate regulator (OSHA) or professional advisor.
Scope
The standard covers all employees engaged in
steel erection
 Two lists of activities covered

 Primary
 Ancillary

Activities not covered
 Electrical Transmission Towers
 Communication and Broadcast Towers
 Tanks
Controlling Contractor Responsibilities
► Erector
must be provided with an approval
to begin steel erection
► Location must have adequate on-site access
roads (firm, properly graded)
► Trades working under steel erection must
have overhead protection
► If fall protection is left behind by the
erector, it must be maintained or removed
Erection Plan
► Plan
must be site specific and include the
following:
 Approval to begin steel erection
 Written notifications furnished to erectors
 Footings and Walls must be adequate to
support structure
 Site Layout Provisions
 Pre-planning of overhead hoisting operations
Hoisting and Rigging
► Mobile
►
Crane Inspection
The following items must be inspected at minimum;

Wire rope and reeving

Electrical equipment

All operational aids

Control mechanisms

Fluid Levels

Tires

Hooks and latches

Hydraulic system
Hoisting and Rigging
►A
Qualified Rigger must
 Inspect all rigging prior to the start of work
 Rig all loads
► Equipment
may not be ridden at any time
► Equipment must be removed from service if
faulty in any way
► Only connectors and riggers are allowed
under loads
Hoisting and Rigging
►
Christmas Treeing
 Maximum of 5 pieces
 Lifted material must be of
similar type
 Decking bundles are
prohibited
 Employees must be trained
in procedure
 Multiple lift assembly must
be professionally engineered
 Crane manufacturer must
allow procedure
Hoisting and Rigging
► Christmas




Treeing, Items for Consideration:
Weight of each piece
Sling size
Hook size and type
Shackle Size
►Hoisting
using bundle
straps or bands is
prohibited
Structural Assembly
►8
floors maximum between erection floor
and uppermost permanent floor
► Maximum 4 floors unfinished bolting
► Fully decked or protected by nets within two
floors or 30 ft under erection work
► Metal deck openings turned down
► Holes cut immediately prior to filling
Structural Assembly
► Walking
surface must be installed before
shear connectors
► Decking must be laid tight and secured
immediately
► Placement must be for full structural
support
► Derrick floors must be fully planked and
bolted
Structural Assembly
► Covers
 For vehicular traffic – 2 times the maximum axle
load of the largest vehicle
 Foot traffic – 2 times the weight of the expected
load
 Secured to prevent displacement
 Marked “HOLE” or “COVER” or color coded
 Decking holes around columns must be protected
 Domes or fixtures are not rated covers unless
built for such use
Structural Assembly
►
►
►
►
Structure must be
plumbed to insure stability
Plum cables must be
installed before
constructions are placed
on structure
Loose items must be
secured at all times
Decking joists must
landed in accordance with
757(e)(4)
Column Anchorage
►4
anchor bolts per column
► Column must withstand 300 lb eccentric gravity
load from 18” at column top
► Must be set on floors, plates, or packs adequate to
transfer construction loads
► Competent Person evaluates bracing requirements
► Structural Engineer must approve any repairs or
modifications to the anchor rods
► Controlling Contractor must provide written
notification for any repair or modification to the
column
Beams & Columns
►2
bolts per connection prior to releasing the
hoist line
► Solid web members for diagonal bracing one
bolt wrench tight minimum
► One bolt must remain connected for double
connections unless seat or equivalent is
used
► Seats for double connections shall be
designed for the load during the double
connection process
Beams & Columns
► Double
Connection Requirements:
 The connector has to back out the bolts
 Beam must be held in place with a spud wrench
 When second beam, arrives, align and hold with spud
wrench
 Push bolts back through first beam into second beam
and secure
► Double
Connections at columns and beam webs
over a column
 At least one bolt or similar connection device must be
present (i.e. beam seat)
► Perimeter
columns must extend 48” for safety
cable installation and must have holes for cables
at either 42” or 45”
Joists
► Joists
field bolted at
columns unless columns
are framed in at least
two directions
► Vertical stabilizer plates
provided on each column
for joists
► Hoisting cables shall not
be released until joist is
bolted
► Vertical stabilizer plates
are required for each
column of steel joists
Joists
► Joist
placement not at a column
► Alternate means used to stabilize joists on
both sides of the column
► Erection procedure designed by Qualified
Person
► Procedure incorporates joist stability, shop
installed connections, and erection drawings
► Hoisting cables shall not be released until
both ends are bolted and joist is stabilized
Engineered Metal Buildings
► Rigid
frames shall have 50% of their bolts
or the number specified by the
manufacturer installed and tightened on
both sides of the web adjacent to each
flange before hoisting equipment is released
► Construction loads shall not be placed on
any structural steel framework unless such
framework is safely bolted, welded, or
otherwise secured
Fall Protection
► Fall
protection is
required at heights
greater than 2
stories or 30’
(Includes
connectors and
deckers)
► Protection is
required between
15’ and 30’
Fall Protection
► Controlled
Zone
Decking
 Allows connectors to work
without conventional fall
protection
 May be established in an
area within the structure
over 15’ and up to 30’ above
a lower level
 CDZ shall not be more than
90’ wide and 90’ deep from
any leading edge
 CDZ perimeter must be
designated by warning lines
 Only trained employees can
enter the CDZ