In structural crane construction, how to use crane?
First to survey and lifting the scene, according to the actual situation, first of all, assembly line, and then according to the circuit can determine the working radius of crane boom, according to the lifting of check tonnage crane performance table namely crane can be determined. 2, lifting radius R requirement according to the weight of Q and lifting height H, consult the crane performance curve or table performance, to select type and crane crane arm length L, and can check in the choice of weight lifting height and the corresponding lifting radius, which is the biggest lifting radius, lifting the artifacts can be used for assembly the components at the same time the basis of a crane operation route and break point.
The question of how to choose a crane involves multiple aspects, sometimes more complex. If you have any specific problem, please send me the message.
The lifting radius can be calculated based on the actual lifting arm length L and the corresponding alpha value Then press the R and L check or the crane performance curve table, check up the weight of Q and lifting height H, if you can meet the requirements, can be determined according to the R value crane hoisting component when the stop position. When hoisting the roof panel, it is commonly used above to determine the length of arm length and lifting radius of the hoisting span. And then the most marginal piece of the roof board meets the requirements.
When required, the forearm long Lmin with preliminary selected according to the weight of Q and lifting height H crane model, and according to the obtained by the method or graphical method of minimum lift arm long theoretical Lmin, check, or the crane performance curve table, alternative of several kinds of arm length from the provisions of the arm length L > Lmin, namely for hoisting components selected jib length
Have requirement according to the weight lifting radius R, Q), lifting height H and lifting radius R three parameters refer to crane performance curve or table performance, to select type and crane crane arm length l. and determine the lifting radius when hoisting the artifacts, as determined hoisting crane operation line when the component and the basis of break point.
