The performance of circular foam aluminum-filled steel tubular members under static compression was studied experimentally.By analyzing the results within the scope of this test,it can be seen that when the thickness of the peripheral steel tube is small,the circular foam aluminum-filled steel tubular members have local buckling deformation during the static compression process,and the compression deformation curve turns into elastic stage and yield platform stage;When the thickness of the peripheral steel tube is large,the circular foam aluminum-filled steel tubular member will lose its stabili-ty as a whole.After the compression curve goes through the elastic stage,it enters the elastic-plastic yield stage.After reaching the peak load,the bear-ing capacity of the members will decline rapidly.On the basis of the test,the design formulas of the average crushing load and the ultimate crushing load of the circular foam aluminum-filled steel tubular members are proposed.Meanwhile,the test result is compared with the theoretical formula,and the two values obtained therein are relatively consistent.
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