Mechanics Analysis On Construction Process For The Complicated Connected Structure

In this Paper,the basic theory of construction mechanics is introduced.The research background of this paper is the key project Palms Together Dagoba in Famen temple in Shaanxi province.Established the Famen temple by finite element program ANSYS in step and step.According to the construction program not only analysis the control point deformation and stress change on the whole construction process of the main structure, but also analysis the temporary truss rods in various parts in the same time,and take full account of the constant and live load.Beams and columns and plate structure component use different element in establishing,the analysis steps are as the same as the reality.This can ensure the FEA modeler correct.The main conclusions are as follows:1,It shows that the deformation changing are very complicated during the whole construction process.The deformation of east and west towers are symmetrical.The deformation are mainly embodied in the vertical and Y direction,the most value in Y direction reach 21.84mm,and the vertical's rech 45.076mm,the value in X direction are smaller.It required take the pre-set deformation value (PDV),and the results in this paper can give some advises in PDV.2,Stress analysis of major studies focus on the palms,hand back of steel columns in the construction process changing.The results showed that, in the early phase of construction palms, back of the hand are all cross-section steel compression situation, as the construction proceeded, palm steel columns into force multi-state, the inner surface in tension, the outer surface in compression, and the constant stress become larger and larger with the construction. And the same time,in elevation 44m,54m and 74m were appearing stress superpositon effect.The out-plane stiffness of the cavity wall of steel flat is weaker.It is advised that set temporary truss between the elevation 79m-84m to enhance the overall stability,reduce the stress superposition effect and ensure the structural safety on the construction process. The results in this paper can give some advises and reference in designing PDV and the temporary truss.3,The deformation and stress changes of rachel temporary truss are more stable compare to the main structure,and the changes in a same way. The results shows that the temporary truss played a role in coordination and constraint of East and West tower deformation. The results in this paper can give some advises and reference in designing the temporary truss.This paper's findings can give some advises and references in the such structure in the future.