Design And Analysis Of Beam String Structure

Beam String Structure(BSS),composed of cable,rigid beam and struts,obtains its over all rigidity by prestressing the cable.With light self-weight,strong overall rigidity upon completion,stable configuration and extensive shape applicability,BSS has been widely used in many large-span space structures.The characteristics and classifications of BSS are summarized,and the domestic for BSS are reviewed. According to the nonlinear finite element theory,the model is estabilished。Mechanical and reflection of arch is analyzed by the component BSS. prestress of string and the span so as to acquire the range of the logical design parameters of BSS. In this paper, the way of the prestress in cable was discussing, a new method is put into use to analyse the form-finding of BSS.It is more convenient to do the form-finding of BSS using ANSYS with APDL.In order to get a better application of BSS,special project research is made on the construction theory of Dongli Training Gymnasium,Tianjin,choosing the reasonable of logical parameter of this project. Based on the geometric nonlinear finite element, the form finding of the long-span BSS and the mechanical performance of single-direction BSS was studied systemicall.Under construction,after the pre-stress on BBS experiments, the experimental results was reexamed with the help of ANSYS programe. And the experimental formula of the max-stress on beam string structure is acquired. All of this can offer advice of this type of structure in the future.