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Overall Stability Analysis of Buckling Restrained Braces with Lateral Braces
Author(s): 
Pages: 118-121
Year: Issue:  3
Journal: JOURNAL OF GANSU SCIENCES

Keyword:  屈曲约束支撑稳定性解析法有限元方法设计步骤;
Abstract: 传统的屈曲约束之撑是由外包构件、内核构件及填充在两者之间的砂浆所组成,具有良好的耗能能力,但也存在在反复荷栽作用下由于砂浆开裂而产生的刚度退化和承载力劣化等缺点,因此提出了一种新型屈曲约束支撑,即在内核构件和外包构件之间不再灌注砂浆,而是设置钢板侧向支撑,并建立基于欧拉屈曲理论的力学模型,采用解析法和ANSYS有限元方法进行了理论分析,对临界荷载、外包构件的刚度及侧向支撑的数量得到了解析公式,对在具体结构中的使用得到了相应的设计步骤.
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