It is pointed out that adding column for truss can strength the cantilever, and adding attached bar can reduce unfavorable load of tower crane to cantilever truss.
指出可以通过对桁架增加立柱的方式对悬臂进行加固；另外，附着杆的增加可以降低起重机对下部悬臂桁架的不利荷载。
It is pointed out that adding column for truss can strength the cantilever, and adding attached bar can reduce unfavorable load of tower crane to cantilever truss.
指出可以通过对桁架增加立柱的方式对悬臂进行加固；另外，附着杆的增加可以降低起重机对下部悬臂桁架的不利荷载。
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