Cranes - Where Do You Find One When You Need One?
by Anonymous on 2007-09-22
Cranes have been used on building sites for thousands of years. Today's cranes are bigger and safer than those the Egyptians used to build the pyramids were.
Every city skyline includes many cranes, as modern steel frame building technology requires steel girders to be lifted precisely into place. These are jib cranes. A jib crane is extremely versatile and allows loads to be placed anywhere within the jib's length radius of the base. The loads include baths of concrete and plaster, blocks and pipe work.
Crane operators sit high above the ground in a structure that waves in the wind. They are well paid, but the job requires perfect eyesight, a head for heights and a willingness to use chemical toilets (The operator cannot spend the time coming down to ground level every time nature calls.)
Cranes must be mobile because once the construction work is complete the crane must be dismantled and moved on to the next construction site.
There are other types of crane, too. There are mobile cranes, truck-mounted cranes, crawler cranes and gantry cranes for example.
Truck-mounted cranes are ideal where the job is very short-lived, there is no expensive dismantling and re-erection time. These cranes can be fitted with adapters and used in demolition and earth-moving jobs.
Floating cranes are used in bridge building and unloading ships.
Most companies will rent a crane when they need one. It is essential to discuss the job in detail with the crane hire company. They will advise as to exactly which crane you need to do the job most quickly and at lowest cost. There are different classes of crane, which are designed to operate under different load factors.
Every city skyline includes many cranes, as modern steel frame building technology requires steel girders to be lifted precisely into place. These are jib cranes. A jib crane is extremely versatile and allows loads to be placed anywhere within the jib's length radius of the base. The loads include baths of concrete and plaster, blocks and pipe work.
Crane operators sit high above the ground in a structure that waves in the wind. They are well paid, but the job requires perfect eyesight, a head for heights and a willingness to use chemical toilets (The operator cannot spend the time coming down to ground level every time nature calls.)
Cranes must be mobile because once the construction work is complete the crane must be dismantled and moved on to the next construction site.
There are other types of crane, too. There are mobile cranes, truck-mounted cranes, crawler cranes and gantry cranes for example.
Truck-mounted cranes are ideal where the job is very short-lived, there is no expensive dismantling and re-erection time. These cranes can be fitted with adapters and used in demolition and earth-moving jobs.
Floating cranes are used in bridge building and unloading ships.
Most companies will rent a crane when they need one. It is essential to discuss the job in detail with the crane hire company. They will advise as to exactly which crane you need to do the job most quickly and at lowest cost. There are different classes of crane, which are designed to operate under different load factors.
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