屈曲
结构工程
刚度
栏(排版)
材料科学
耐火性
流离失所(心理学)
梁(结构)
耐火试验
工程类
复合材料
连接(主束)
心理学
心理治疗师
摘要
An experimental study was carried out to investigate the axial restraint effect on behaviors of steel columns subjected to fire.Varying the cross-section size of the restraint beam,the required restraint stiffness was obtained in the test.Some observations were: the greater the axial restraint stiffness,the lower the buckling temperature and the failure temperature;the greater the axial restraint stiffness,the smaller displacement after the column's buckling;the failure temperature of a restrained column is usually higher than the buckling temperature.A comparison between numerical analysis and testing results show good agreement,so numerical analyses have sufficient accuracy to predict the fire resistance of restrained steel columns.
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