definition
strict definition
tower crane collapses
A tower crane used in construction or renovation loses structural integrity and largely falls or hangs from the structure.
A tower crane which is used in the construction or renovation of a structure collapses when some form of damage (often wind) compromises its structural integrity, and a large part of the crane falls down or is left dangling from the structure.
The crane can remain partly attached, with a large damaged section hanging from the structure. Complete separation or a fall all the way to the ground is not required.
The crane must be serving construction or renovation of the structure. Planned tower crane dismantling does not constitute a collapse.
Related definitions
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damaged by aircraft
A collision with an airplane, helicopter, or other aircraft damages a structure partly or completely. -
damaged by another structure
Impacting material or construction errors from a nearby structure damages a structure partly or completely. -
damaged by avalanche
An accumulated mass of snow, ice, or sludge falls or slides onto a structure and causes notable destruction. -
damaged by bombing
An explosive device damages all or part of a structure outside the owner's deliberate program of demolition. -
damaged by construction errors
Mistakes or inadequacies in a structure's own construction damage it partly or completely. -
damaged by earthquake
Natural earthquake vibrations or ground movements damage or destroy a built object or any of its components. -
damaged by explosion
An explosion of accidental or unknown causes damages a structure partly or completely. -
damaged by falling tree
An impact from a falling tree or branches damages a structure partly or completely. -
damaged by fire
Fire or smoke in a structure or its vicinity degrades, damages, or destroys any of the structure's components. -
damaged by flooding
An inundation with water or other liquid damages a structure partly or completely. -
damaged by hailstorm
Impacts from ice particles falling from clouds damage a structure enough to cause measurable financial loss. -
damaged by hurricane
A tropical storm, including a hurricane, typhoon, or cyclone, damages a structure through wind, rain, or resulting mold. -
damaged by landslide
Impacts from sliding or falling earth or rocks damage a structure partly or completely. -
damaged by lightning
A lightning bolt or natural electric charge damages a structure partly or completely. -
damaged by sandstorm
Windblown sand scratches or impairs a structure or its operational parts enough to cause measurable financial loss. -
damaged by snow overload
The weight of accumulated snow on a structure's roof or sides causes partial or total collapse. -
damaged by soil movements
Shifting or settling ground under a structure damages it partly or completely. -
damaged by theft
Theft of valuable elements damages or destroys a structure, or diminishes its value. -
damaged by tornado
A tornado damages or destroys all or part of a structure through its winds or material carried by those winds. -
damaged by unknown cause
Major structural, functional, or cosmetic damage occurs to a structure, and its cause has not been determined. -
damaged by vandalism
Malicious destruction or defacement, excluding bombing or arson, causes property damage that decreases a structure's value. -
damaged by vehicle
A collision with a boat, road vehicle, or train damages a structure partly or completely. -
damaged by volcanic eruption
A natural volcanic event damages or destroys a structure through lava, ash, hot water, or other volcanic effects. -
damaged by wind
Wind gusts, microbursts, or storms other than hurricanes and tornadoes cause damage to a structure.