Site
Preparation
1926.752
Site layout, site-specific erection plan and construction
sequence
 Proper communication between
the controlling contractor and the steel erector prior to the
beginning of the steel erection operation is essential to
employee safety. Many accidents involving collapse could have
been averted had adequate pre-erection communication and
planning occurred. The following requirements for site
preparation, including site layout, pre-planning of overhead
hoisting operations, and (in some cases) site-specific
erection plans, have been made to ensure safety during the
initial stages of steel erection.
- The controlling contractor must provide written notification to the steel
erector ensuring that [1926.752(a)]:
- Concrete in footings, piers, and walls has been
cured to a level that will provide
adequate strength to support any forces
imposed during steel erection [1926.752(a)(1)].
Tip: The criteria for adequate
strength depends on the results of required American
Society for Testing and Materials standard test
methods.
- Anchor bolt repairs, replacements and
modifications were done with the approval of the project Structural
Engineer of Record (SER) [1926.752(a)(2)
and 1926.755(b)(1)].
- A steel erection contractor may
not erect steel without the above written
notification [1926.752(b)].
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- In order for the steel erector to perform
necessary operations in a safe manner, the controlling contractor must provide and
maintain [1926.752(c)]:
- Access roads into and
through the site that are adequate for safe delivery
and movement of:
-
derricks,
- cranes,
- trucks,
- other necessary equipment,
- the material to be erected
[1926.752(c)(1)];
 Means and methods for
pedestrian and vehicular
control. [1926.752(c)(1)]
- Adequate space for the
safe storage of materials and the safe operation of
the erector's equipment, which is
- firm,
- properly graded,
- drained,
- readily accessible to the work [1926.752(c)(2)].
Exception: This
provision does not apply to roads outside of the
construction
site.
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- All hoisting operations in
steel erection must be pre-planned to ensure that [1926.752(d)]:
- Employees are not working
directly below suspended loads, except for
[1926.753(d)(1)]:
- Where employees must work under the load, the
materials being hoisted
are:
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- Employers may elect, because of conditions
specific to the worksite, to develop alternate means of providing the employee
protection required in 1926.753(c)(5),
1926.757(a)(4)
or 1926.757(e)(4).
If a site-specific erection plan is used, it
must:
- be developed by a qualified
person, and
- be available at the work
site [1926.752(e)].
Components
of a site-specific erection plan [Non-mandatory
Appendix A]
A site-specific erection
plan is developed during one or more pre-construction
conferences and site inspections involving the erector,
the controlling contractor, and others such as the
project engineer and the fabricator. In this process,
the following elements are considered:
- The sequence of erection
activity, developed in coordination with the
controlling contractor, including the
following:
- Material deliveries;
- Material staging and storage; and
- Coordination with other trades and construction
activities.
- A description of the crane and
derrick selection and placement procedures,
including the following:
- Site preparation;
- Path for overhead loads; and
- Critical lifts, including rigging supplies and
equipment.
- A description of steel erection
activities and procedures, including the
following:
- Stability considerations requiring temporary
bracing and guying;
- Erection bridging terminus point;
- Notifications regarding repair, replacement and
modifications of anchor rods (anchor bolts);
- Columns and beams (including joists and
purlins);
- Connections;
- Decking; and
- Ornamental and miscellaneous
iron.
- A description of the fall
protection procedures that will be used to
comply with 1926.760.
- A description of the falling
object protection procedures that will be used
to comply with 1926.759.
- A description of the special procedures required
for hazardous non-routine
tasks.
- A certification for each
employee who has received training for performing steel
erection operations as required by 1926.761.
- A list of the qualified and
competent persons.
- A description of the procedures that will be
utilized in the event of rescue or
emergency response.
In addition, the plan should include
identification of the site and project, and be signed
and dated by the qualified person(s) responsible for its
preparation and modification.
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