Crane Safety
Construction
cranes are a common sight in cities. From the perspective of the Occupational
Safety and Health, the term “crane” encompasses a large family of construction
machinery used to hoist, lower, and horizontally move a suspended load. Types
include industrial, barge, and crawler cranes as well as pile drivers and
derricks.
Although
cranes are designed to lift and move heavy objects safely, they pose a number
of potential hazards. Many cranes, especially the larger variety used to erect
tall buildings and skyscrapers, must be assembled on-site correctly and safely
or they run the risk of toppling.
Crane
safety are a must in the construction industry. One way that contractors can
ensure that regulatory and safety standards are met or exceeded is to hire
safety professionals with a bachelor’s degree in occupational health and
safety.
Important Crane Safety Considerations
The purpose of a crane is to lift and move heavy
loads, sometimes very high, around construction sites. But cranes come with
dangers as well, including poorly secured loads or incorrect assembly. A crane
incident can result in serious injury or death to both crane operators and
construction workers alike.
Crane in Seattle toppled onto a busy downtown
street causing 7 casualties, 4 of which were fatal. In Construction. Recent
Deadly Accidents, New Regulations Put Crane Safety in the Spotlight, points out
that this incident, and others like it, generally come down to human error and
that proper licensing and training is imperative to maintaining crane safety.
With these dangers in mind, the Society of Civil
Engineers (ASCE) published Policy Statement 424 in July 2019. The ASCE’s
statement includes a list of crucial safety guidelines for construction sites:
·
Require compliance with
federal, state, and local regulations, codes, and standards, including OSHA
regulations.
·
Require prime/general
contractor to carry the primary authority and responsibility for crane safety.
·
Train operators, on-site
personnel, and management staff on crane safety.
·
Protect the public
during crane operations.
·
Identify elevated and
underground electrical hazards.
·
Obtain pertinent
information regarding geotechnical reports, soil excavations, underground
structures and utilities, and any other factors that may affect the operation
of a crane.
·
Require buoyancy and
stability calculations for barge cranes to ensure that the barge is suitable
for the crane’s tasks.
·
Cease crane operations
and implement crane safety mode when steady winds exceeding manufacturer
specifications are forecast.
·
Encourage the
development of technology to improve crane safety.
·
Encourage local colleges
and universities to offer crane safety information in their civil engineering
courses.
Individual operators and on-site personnel, even
more so than management staff, are responsible for keeping up on daily crane
safety checks. CraneTraingingU.com lists these tips in its website article
“Crane Safety Training – Lifting Best Practices:”
·
Conduct a visual
inspection of the equipment.
·
Conduct a visual
inspection of site conditions and potential hazards.
·
Ensure the stability
zone of the equipment.
·
Ensure stabilizers are
fully deployed.
·
Check the rigging.
·
Ensure all safety
devices are in place.
·
Ensure that all
personnel are a safe distance from the equipment, the loads and any other
objects within the lift zone and its perimeters.
·
Ensure loads to be
lifted are within the crane’s capacity per the owner’s manual.
·
Ensure that operators
fully adhere to load/lift limits.
·
Ensure the crane is as
close to the load being lifted as possible.
·
Keep loads as low to the
ground as is reasonably safe when performing lifts.
·
Secure the load after it
has been lifted and properly stow the crane, stabilizers, winches and any other
moving parts.
Crane safety tips do not just cover stationary,
assembled cranes but also derricks and other types of trucks that house crane
elements or boom arms used to lift long, heavy equipment such as utility poles.
Most derricks have stabilization arms that keep the vehicle steady during
operation.
Types of Cranes
The
following are some of the most popular cranes
used today:
- Telescopic Crane –
A telescopic crane uses a telescopic system that allows the crane to
extend out to reach items to pick up and move.
- Floating Crane –
A floating crane is on a boat or floating island and used to move objects
on the boat, for an offshore oil rig, or other things.
- Harbor Crane –
Harbor cranes are built onto platforms in the water. They are typically
used to load or unload cargo vessels.
- Crawler Crane –
These are among the most commonly seen cranes. They are on a vehicle so
that the crane can move into place for any job.
- Aerial Crane –
An aerial crane is typically on a powerful helicopter and used to lift and
transport objects in areas where traditional cranes can’t be used.
- Tower Crane –
Tower cranes are fixed to the top of or side of some type of tower. They
are commonly seen in the construction of skyscrapers where they lift large
beams and other equipment up where it is needed.
Most cranes
today are powered by electric motors, moved with vehicles, and
can lift massive amounts of weight. Modern cranes are one of the most important
pieces of equipment when it comes to completing major construction projects,
managing shipping, and keeping the economy going strong. Without these
incredible machines, most things would have to be moved by hand, or wouldn’t be
possible at all.
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