Static&Stability Analysis And Construction Methods Comparison Of Two-way Beam String Structure

As a non-rigidity structure, the geometric configuration and structural behavior ofBBS are highly related to the process of construction. To build a more economical andrational BBS, comprehensive understanding of the structural performance duringprestressing is essential, in addition to the advanced construction technologyrequired.Mechanical properties and construction process of two-way beam string structureunder the two main themes of this study. In this paper, used ansys finite elementsoftware, determine the size of the prestressed initial value，static performance, stability,construction scheme for the four aspects of these two main themes of study.Various parameters affect find the shape of the Two-way Beam String, you canadjust the size of the prestressed of Two-way Beam String to achieve the expectedinitial state,then the Depth-span ratio and Pend-span ratio in certain circumstances.Firstly, Determine the distribution characteristics of prestressed of Two-way beamstring structure to calculation the initial prestressed value of Two-way String Beamstructure by the iteration method.Secondly, Analysis Static&Stability of Two-way Beam String by numericalmethods, Various parameters affect Static performance of the Two-way Beam String,Such as, a change of prestressed、external loads、Depth-span ratio、Pend-span ratio andbearing would give rise to Two-way Beam String structure affected by the changes ofmechanical properties. In this paper, from the local and overall two aspects do atheoretical analysis of the stability of the Two-way Bean String Structure. In the overallanalysis of the Two-way Beam String Structure using a variety of buckling analysismethod. Evaluation failure mechanism and mechanical properties of Two-way BeamString Structure by tracking its load-displacement curve. Tension during the of Beam String Structure is the overall stiffness formationprocess, have a greater impact to the final geometric shape and mechanical performance.This article refers to the instance of the project, put forward four different prestressedtension program, and through analysis and comparison Two-way Beam String mid-spandeflection, maximum bending moment of the winding beam, cords final pull, thenumber of tensioning tools in four different tensioning solution, obtain the mosteconomical, safe,reasonable and construction of prestressed tension program.