Vertical High-rise Building Construction Load Structure Under Simulation Analysis

This paper studies mainly the mechanism characteristics of upper-tall-structure undervertical construct load, which is applied step by step on base of several kinds of factorsduring the construction. On the three-dimensional built model of the upper frame shearing-wall structure,box basement and foundation which works as a whole body, thechange of mechanical characteristic about upper-structure are studied by the method ofadding loads one floor after another floor during simulating construction procedure onlinear elastic foundation-model and nonlinear elastic foundation respectively. Comparedwith the result without considering the common action on the rigid foundation, it showsthat the linear elastic and the nonlinear elastic foundation have great affect on the resultof tall-building during construction. On the while, the structures are analyzed by theconventional method adding vertical loads once on the rigid foundation withoutconsidering common action and on the linear elastic foundation with consideringcommon action. The conclusions are made that the result by the conventional methodmay be unreasonable by compared with the result by the method adding loads step bystep. Furthermore, the paper also considers the affect of the age of concrete on theinternal force of structure by the method adding loads step by step. The result shows theage of concrete has no effect on the force of structure. But the fact that strength ofconcrete is insufficient should be considered during design. Altogether the conclusions ofthis paper will give some reference to improving the conventional design of tall-buildingmethod.