Dynamic Analysis of Construction and Safety for a Giant Column Frame-Core Tube-Extension Arm Truss Structure System

Considering the influence of the shrinkage and creep of high-strength concrete on the vertical deformation and stress of structures, the mechanical behaviour during the construction of the giant column frame-core tube-extension arm truss structure system was simulated by using finite element analysis software.

For the engineering example of the Wuhan Center, and the safety of the construction channel under a moving load was analysed numerically. The results indicated that that there was a difference in deformation between the elevation position and design position of floor; the maximum deformation difference occurred in the middle of the tower.

Under moving loads, the displacement and stress of the channel were 0.5 times that under full load.

As the load moved, the maximum displacement and stress of steel beam and plate changed, while the displacement and stress of the supports and the placed beam and plate remained unchanged and maintained the minimum value.