Steel Erection

Before authorizing the commencement of steel erection, CHASSE Building Team will ensure that the steel erector is provided with the following written notifications:

1. The concrete in the footings, piers and walls and the mortar in the masonry piers and walls has attained, on the basis of an appropriate ASTM standard test method of field-cured samples, either 75 percent of the intended minimum compressive design strength or sufficient strength to support the loads imposed during steel erection.

2. Any repairs, replacements and modifications to the anchor bolts were conducted with the approval of the project structural engineer of record.

A steel erection contractor will not erect steel unless it has received written notification that the concrete in the footings, piers and walls or the mortar in the masonry piers and walls has attained, on the basis of an appropriate ASTM standard test method of field-cured samples, either 75 percent of the intended minimum compressive design strength or sufficient strength to support the loads imposed during steel erection.

CHASSE Building Team will ensure that the following is provided and maintained:

1. Adequate access roads into and through the site for the safe delivery and movement of derricks, cranes, trucks, other necessary equipment, and the material to be erected and means and methods for pedestrian and vehicular control.

2. A firm, properly graded, drained area, readily accessible to the work with adequate space for the safe storage of materials and the safe operation of the erector’s equipment.

All hoisting operations in steel erection will be pre-planned.

Where employers elect, due to conditions specific to the site, to develop alternate means and methods that provide employee protection, a site-specific erection plan shall be developed by a qualified person and be available at the work site.

Cranes being used in steel erection activities will be visually inspected prior to each shift by a competent person; the inspection shall include observation for deficiencies during operation.

If any deficiency is identified, an immediate determination will be made by the competent person as to whether the deficiency constitutes a hazard.

If the deficiency is determined to constitute a hazard, the hoisting equipment will be removed from service until the deficiency has been corrected.

The operator will be responsible for those operations under the operator’s direct control. Whenever there is any doubt as to safety, the operator will have the authority to stop and refuse to handle loads until safety has been assured.

A qualified rigger (a rigger who is also a qualified person) will inspect the rigging prior to each shift in accordance.

The headache ball, hook or load will not be used to transport personnel.

Structural stability will be maintained at all times during the erection process.

Training required will be provided by a qualified person(s).

Covers for roof and floor openings will be capable of supporting, without failure, twice the weight of the employees, equipment and materials that may be imposed on the cover at any one time; covers will be secured when installed to prevent accidental displacement by the wind, equipment or employees; covers will be painted with high-visibility paint or will be marked with the word “HOLE” or “COVER” to provide warning of the hazard; and smoke dome or skylight fixtures that have been installed, are not considered covers.

Each employee engaged in a steel erection activity who is on a walking/working surface with an unprotected side or edge more than 6 feet above a lower level will be protected from fall hazards by guardrail systems, safety net systems, personal fall arrest systems, positioning device systems or fall restraint systems.

On multi-story structures, perimeter safety cables will be installed at the final interior and exterior perimeters of the floors as soon as the metal decking has been installed.

Connectors and employees working in controlled decking zones will be protected from fall hazards.

Fall protection provided by the steel erector will remain in the area where steel erection activity has been completed, to be used by other trades, only if CHASSE Building Team or its authorized representative:

1. Has directed the steel erector to leave the fall protection in place; and

2. Has inspected and accepted control and responsibility of the fall protection prior to authorizing persons other than steel erectors to work in the area.

During the final placing of solid web structural members, the load will not be released from the hoisting line until the members are secured with at least two bolts per connection, of the same size and strength as shown in the erection drawings, drawn up wrench-tight or the equivalent as specified by the project structural engineer of record.

Structural stability will be maintained at all times during the erection process.