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首页> 外文会议>Conference on Active and passive smart structures and integrated systems; 20090309-12; San Diego, CA(US) >Full scale tests of all-steel buckling restrained braces
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Full scale tests of all-steel buckling restrained braces

机译：全钢屈曲约束牙套的全尺寸测试

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Buckling-restrained braces (BRBs) are widely used seismic response-controlling members with excellent energy dissipation capacity without buckling at design deformation. However, the property of all-steel BRBs with cruciform cross section encased in a square steel tube remains insufficiently studied. In this paper, the properties of this kind of BRBs, which were used in two office buildings in Beijing, were examined by full-scale test. First, initial design was done according to the client's requirement. Then, two full-scale specimens were tested under uniaxial quasi-static cyclic loading. The test results indicate that there should be no welding in yielding portion of the core. Finally, the full-scale subassemblage test was done with an improved BRB and gusset plates installed in a frame. The result shows that the brace exhibited high energy dissipation capacity and stable hysteretic characteristic. According to the results from above tests, some important issues are summarized to provide advices for practical applications.
机译：屈曲约束支撑（BRB）是广泛使用的地震响应控制构件，具有出色的能量消散能力，而不会在设计变形时屈曲。但是，在方形钢管中包裹十字形截面的全钢BRB的性能仍未得到充分研究。本文通过对北京两座办公楼中使用的这类BRB的性能进行了全面测试。首先，根据客户要求进行初步设计。然后，在单轴准静态循环载荷下测试了两个满量程样本。测试结果表明，铁芯的屈服部分不应焊接。最后，使用安装在框架中的改进的BRB和角撑板进行了全面的子装配测试。结果表明，支架具有较高的耗能能力和稳定的滞后特性。根据以上测试的结果，总结了一些重要的问题，为实际应用提供了建议。

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