In addition, for the safety estimation and repairing after a fire, the behaviour of restrainedbeams subjected to temperature descending needs studying.
为了进行火灾后的安全评估及修复工作，还需要了解钢梁在降温段的反应。
2
The facts demonstrated in the experiments and the real fire hazards showed that the restrained steel beams have better fire-resistant capability than the simply-supported beams.
真实火灾中的调查和试验结果表明，约束钢梁比一般的无约束钢梁有更好的抗火承载性能。
3
In this paper, based on the behaviour of a curved beam, the change of the stiffness of restrained steel beams is studied.