Research on Asynchronous Lifting Performances of All-Steel Integrated Attached Lifting Scaffolds

In order to study the asynchronous lifting performance of the attached lifting scaffold, the all-steel integrated attached lifting scaffold was used as the test frame to measure the stress changes of the main stressed components during the lifting process. The finite element model of the frame was established in ABAQUS and the correctness of the finite element analysis results was verified according to the test results. On this basis, the asynchronous motion performance under 32 working conditions was analyzed. The results showed that when the displacement difference between adjacent hoister exceeded 30 mm or when the hoister overload and hoister load loss occurred, the maximum asynchronous coefficient was 2.33 and its minimum was 1.16. Its average value was 1.82.At present, the non-uniformity coefficient of load was 2.0 in the Safety Technical Code for Construction Tool Scaffold (JGJ 202-2010). Based on the analysis results, it was suggested to increase the non-uniformity coefficient of load to 2.35 or decrease the allowable position displacement difference to ensure the safe using of lifting scaffold.