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Dryad

Test database for bearing capacity of circular concrete-filled steel tube (CFST) under axial compression, eccentric compression, and pure bending stress states

Abstract

The constitutive relations and failure criterion were developed for circular concrete-filled steel tube (CFST) with high precision and wide applicability based on the fiber model method to overcome the limitations of existing constitutive relations and failure criteria for circular CFST flexural members. Then, on the basis of the test database including the parameters of circular CFST such as "length", "Diameter", "Thickness", "Yield strength", and "Compressive strength", the bearing capacity was calculated by the fiber model method. Finally, the accuracy and validity of the proposed constitutive relations and failure criterion were verified by comparing the calculated values with the "Test values" of the test database.

The test database consists of three tables. Table 1 is the axial compression test database, containing a total of 516 data sets. Table 2 is the pure bending test database, comprising 121 data sets. Lastly, Table 3 is the flexural compression test database, encompassing 365 data sets.