| This paper has made a theoretical deep research on shear capacity for exposed-type column base at home and abroad. Exposed-type column base can be divided according to the different structure of steel columns without shear keys feet and shear key column base. Different types of steel column base shear mode is very different. This paper makes a detailed analysis on the above two types of steel column base.First, A detailed analysis of the anchor bolt connection of steel column base and foundation On the condition of stress under different failure modes of single anchor bolt are studied deeply. Found a reasonable failure mode of exposed-type column base. Secondly, On the basis of the above analysis. Analysis of steel column base two types of shear capacity. Compare the advantages and disadvantages of various calculation methods at home and abroad. Put forward reasonable failure mode of shear capacity formula.According to a Beijing industrial plant engineering examples. Processing and manufacturing of steel column base two types of experiment. On the experiment phenomena and test results are analyzed in detail. And compare the result with the theoretical calculation formula. Confirm the applicability of the calculation method.Through theoretical analysis and experimental study.In the 《Stell structure design code》, objection to the provisions of anchor bolt can not shear requirements. This paper argues that a reasonable failure mode foot steel column, there are certain column anchor shear capacity. Suggestions for improving the steel column base shear key point set. The steel column base shear bond put forward the key settings and the calculation method of shear capacity of shear.This paper will give the reference for the steel column base design. |
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