Abstract
In order to effectively guide the selection of scaffold in the designing
of cantilever scaffold, a comprehensive analysis of three typical
scaffold supporting systems (including fully cantilever,
bottom-supporting cantilever and pull-up cantilever) is carried out. The
calculation formulas for the internal force of the three scaffold
supporting systems are proposed by theoretical analysis methods, which
are verified by finite element method (FEM). In addition, the force
mechanism and benefits of the three scaffold supporting systems are
compared and analyzed combined with actual engineering. The results
indicate that there are high calculating accuracy for the proposed
internal force and deflection calculation formulas about the scaffold
supporting systems. According to the distribution uniformity of the
internal force and controlling of the deformation of the main girder,
the bottom-supporting cantilever load-bearing system is the best choice.
While the pull-up cantilever supporting system is the best choice
considering the aspects of cost, construction period and social
benefits, which can be popularized in engineering practice.