Improved Nonlinear Analysis Method and Application of Construction Mechanics for Steel Structure
Abstract
The forming of a structure is a process during the construction, and the loads are applied to
the structure step by step along with the construction sequence. The stress state and deformation
mode of structure during construction stage are different than the design stage. Based on the
characteristics and applicability of a few existing analysis methods of construction mechanics for
steel structure and according to the positioning principles of components of steel structure in the
actual projects, this study aimed to develop an improved nonlinear analysis method to accurately
predict the mechanical changes of structure during the construction process. This method named
birth and death element of local configuration constraint is put forward to solve the defect, which is
the “drifting” of death element in the direct birth and death element method. It had been applied in
the construction mechanics simulation and analysis of the main tower of the Heshi Stupa in Famen
Temple during the construction process. The analysis results by the improved method had guided
this project successfully. This has indicated that the improved method is an effective analysis
method of construction mechanics for steel structure.
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