Brief analysis of development trend of large tower mobile boom       

largeTower craneTake advantage of boom:

A luffing jib tower crane in operation, the boom does not produce additional torque (lifting moment level jib tower crane in operation, in addition to the amount of tower crane fixed moment, due to the boom weight resulting downward impact will produce an additional torque, especially large level of tower crane jib tower crane boom weight, this the additional torque is far greater than the general rated lifting tower crane. It's bad for the tower of the tower crane. Moving arm type tower crane operation is to change the jib luffing jib angle, mainly in theory under pressure, therefore, the boom and tower section, are relatively small.

The balance arm of B is shorter. Because the luffing tower crane boom boom angle is changed, the boom did not produce additional torque extra, so the balance arm tower crane can do relatively short. For the construction of high tower operation, the tower crane boom is an advantage of horizontal balance arm tower crane can not be replaced.

Lifting performance of C boom tower crane". The luffing height of luffing tower crane makes the installation height of tower crane relatively low. At the same time, it can minimize the encroachment on the outer space of the construction site.

Of course, the boom tower crane also has many disadvantages, such as large amplitude and energy consumption.