High-rise building analysis considering construction stages: floor structure stiffness influence over vertical element axial shortening

The studies of building structures accounting construction stages considered the optimization of embedded materials both at the design stage and at the construction stage. Axial shortening of the vertical load-bearing elements under the effect of gravitational loads and due to the characteristics of the building materials is an important point of structural analysis of tall buildings that should be considered. The present study analyzes the influence of the floor structure stiffness and the vertical load-bearing element / floor structure connection over the axial shortening of walls and columns which affects the distribution of normal forces in them. A computational model of a building structure with simplified geometry and loads is considered to emphasize the impact of the stiffness of the floor structure. The results of the solution of several variants of calculation models are compared. Generalized conclusions are given in the end.

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