Research Article

Study on the Bond-Slip Performance of CFSSTs Based on Push-Out Tests

Table 1

Design parameters of the test specimens.

Specimen numberL (mm) (mm)B (mm) (MPa)Inner wall of the steel tube

CFST1400.005.001509.2430.0030.00Rust cleaning
CFST2400.004.001509.2437.5040.00Rust cleaning
CFST3400.003.001509.2450.0050.00Rust cleaning
CFST4600.005.0015013.8630.0040.00Rust cleaning
CFST5600.004.0015013.8637.5050.00Rust cleaning
CFST6600.003.0015013.8650.0030.00Rust cleaning
CFST7800.005.0015018.4830.0050.00Rust cleaning
CFST8800.004.0015018.4837.5030.00Rust cleaning
CFST9800.003.0015018.4850.0040.00Rust cleaning
CFST10600.005.0015013.8630.0040.00No rust removal

Note. L is the steel tube length, B is the steel tube section width, t is the steel tube thickness, and is the concrete strength.