钢梁和钢筋混凝土柱组合框架的参数研究

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　　Parameter study on composite frames consisting of steel beams and reinforced concrete columns
　　Wei Li a,, Qing-ning Li b, Wei-shan Jiang b
　　[Abstract] A host of tests and numerical analyses for frames consisting of reinforced concrete columns and steel beams (RCS) have been conducted in the US and Japan over the past decades. Most results have revealed the superior performance of these structures relative to that of traditional concrete and steel frames. However, few studies could be found about composite frame structures consisting of high-strength concrete columns confined by continuous compound spiral ties and steel beams (CCSTRCS), which requires the development of an accurate finite element model of composite CCSTRCS frames. The validity of the proposed model is examined by com-paring with the test data presented in reference studies. With the proposed model, an extensive parametric study is carried out to investigate the behavior of composite CCSTRCS frames. Simplified hysteretic lateral load versus lateral displacement models are proposed for such composite frames.
　　钢梁和钢筋混凝土柱组合框架的参数研究
　　李桅 a,, 李青宁 b, 姜维山b
　　[摘要]对钢筋混凝土柱-钢梁（RCS）组合框架的试验和数值分析在美国和日本已经进行了几十年。大多数结果都表明这些结构相对于传统的混凝土和钢框架结构性能更优越。然而，很少有研究能找到关于钢梁-连续复合螺旋箍混凝土柱组合框架结构（CCSTRCS），这就要求复合CCSTRCS框架精确的有限元模型的发展。该模型的有效性是通过比较参考研究提出的测试数据进行检查。对提出的模型，用一个广泛采用的参数研究方法探讨复合CCSTRCS框架的行为。为此，对于这类组合框架提出了一种迟滞横向载荷与侧向位移模型。