| Paper on axis by pressure round pipe of overall stable hosted force for has theory research, assumed round pipe component axis initial shape and by pressure Hou axis shape are for sine half wave, according to bent buckling theory established axis pressure round pipe of stress equation and edge yield equation, through joint State solution get axis pressure round pipe of overall stable limit stress, and overall stable coefficient and overall stable limit hosted force formula. In order to verify the effectiveness of this method, finite element analysis based on ANSYS software, and in accordance with the code for design of steel structures(GB50017-2003) provides design method of calculation.For research parameter on axis by pressure round pipe overall stable hosted force of effect, paper on axis pressure round pipe of long fine than, and yield strength, and early bent,and wall thick, and diameter and diameter thick than for has effect sex analysis, obtained long fine than, and yield strength and early bent on axis by pressure round pipe overall stable hosted force of effect compared significantly, wall thick, and diameter and diameter thick than of effect smaller.Research results show that this circular steel tubes under axial compression stability calculation method is reasonable and effective, for circular steel tubes under axial compression stability design provides an effective theory and research methods. |
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