Research on Connecting Bolt Looseness Characteristic of the Tower Crane Body

摘要

The bolts loose of the main limb is very important for the research of tower crane. We have established a dynamic simulation model of tower crane and physical experimental model, and have got the top trajectory of the tower crane through the above two models. The results show that the trajectory feature presents introverted region, and with increases of the loose bolts degree, the trajectory exhibit certain regularity.