Date:

2025-04-30

Title of Paper:

Analytical method for the out-of-plane buckling of the jib system with middle strut

Journal:

Steel and Composite Structures

Summary:

The jib system with middle strut is widely used to achieve the large arm length in the large scale tower
crane and the deployability in the mobile construction crane. In this paper, an analytical solution for the out-of-plane
buckling of the jib system with middle strut is proposed. To obtain the analytical expression of the buckling
characteristic equation, the method of differential equation was adopted by establishing the bending and torsional
differential equation of the jib system under the instability critical state. Compared with the numerical solutions of the
finite element software ANSYS, the analytical results in this work agree well with them. Therefore, the correctness of
the results in this work can be confirmed. Then the influences of the lateral stiffness of the cable fixed joint, the dip
angle of the strut, the inertia moment of the strut, and the horizontal position of the cable fixed joint on the out-ofplane buckling behavior of the jib system were investigated.

Co-author:

Wang T, Lu N, Lan P

Volume:

21(5)

Page Number:

963-980

Translation or Not:

No

Date of Publication:

2016-08-10