Buckling Analysis and Optimization Research of Steel Tube Truss with Triangular Section in Space
Based on project practice,the buckling strength of steel pipe trusses with triangular cross-section in space is analyzed regarding the common suspension beam truss members in heavy lifting construction.First,the Warren type truss and the Pratt type truss are compared and analyzed,and the appropriate truss structure form is put forward under specific working conditions.At the same time,the height-to-width ratio and height-span ratio of Warren-type trusses with different triangular steel pipe sections are compared,the influence of these two factors on the buckling critical load of triangular trusses is analyzed,and the corresponding design method for improving the buckling strength is studied.Furthermore,the combination of different section parameters of the Warren-type steel pipe truss is analyzed,and the buckling form of the truss structure is analyzed in combination with specific working conditions,and the principles and optimization suggestions for the design of the space triangular-section steel pipe truss structure are proposed for reference in structural design.
triangular section steel pipe trusshoisting of heavy elementheight-to-width ratioheight-span ratiobuckling loadoptimal section parameters
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