在本试验条件下，修复后梁上新旧混凝土结合性能良好，修复后梁的承载力比原梁有所提高。
Ih this test, the bond between new and old concrete in the repaids beams are good. The strength of repaids beams is higher than that of original beams.
结果表明，掺加适量膨胀剂的钢管膨胀混凝土具有较优的力学性能，其极限承载力比普通钢管混凝土可提高7%左右。
The results show that, when the expansive agent is added properly, the mechanical properties of expansive CFST is better, and its maximum bearing capacity is 7% more than that of ordinary CFST.
研究结果表明，掺加适量膨胀剂的钢管膨胀混凝土具有较优良的力学性能，其极限承载力比普通钢管混凝土可提高8%左右。
The results show that, when the expansive agent is added properly, the mechanical properties of expansive CFST is better, and its limit bearing capacity is 8%more than that of common CFST.
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