January 2013
Intermediate to advanced
451 pages
9h 22m
English
Content preview from Design of Steel Structures, 2e, 2nd Edition
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6
Gantry Girder
6.1 INTRODUCTION
Usually, most of the industrial buildings have built-in overhead cranes for handling heavy equipment or goods. With the help of the overhead cranes, heavy equipment or goods can be lifted and moved from one point of work place to another. The cranes may be hand operated (generally they have a capacity of up to 5 tonnes) and electrically operated (EOT). A typical EOT crane system is shown in Figure 6.1.
The crane system consists of a crane bridge with two parallel girders spaced at a fixed distance apart known as a wheel base. The crane bridge which has a set of wheels at its ends moves on the rails attached to the gantry girders. A trolley or crab which carries a hook moves on the crane bridge. Any equipment ...
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