Influence of Top-Structure Form of Tower Crane on the Factor for Hoisting a Grounded Load

Abstract:

Tower crane is a kind of construction machinery which be widely used in building, bridge, electric power construction. The factor for hoisting a grounded load is one of main factors for dynamic analysis and structure design of tower crane. Different structural forms of tower crane have different effects on the factor for hoisting a grounded load. The finite element models of QTZ125 tower crane with different top-structure form are build and the first six order inherent frequencies and vibration modes are analyzed. Then the factors for hoisting a grounded load at lifting velocity of 0.2~0.5m/s under lifting operation condition are calculated. Based on the results, the influence of the different top-structure of the tower crane to the dynamic characteristic and the factor for hoisting a grounded load is prominent, and the factor for hoisting a grounded load of support-rod type tower crane is less than the tower-cap type tower crane.

• Periodical: Advanced Materials Research (Volumes 605-607)
• Pages: 1265-1269
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.605-607.1265
• Online since: December 2012
• Authors: Yong Jun Xia, Wen Ming Mei, Qian Miao
• Keywords: Dynamic Analysis, Factor for Hoisting a Grounded Load, Finite Element Method (FEM), Top-Structure Form, Tower Crane

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