柱脚铰接的常规多层钢框架静动力分析
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TU391

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广西建筑新能源与节能重点实验室项目(RZ2000000384)


Static and Dynamic Analysis of Conventional Multilayer Steel Frames with Column Base Hinges
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    摘要:

    为明确柱脚铰接的常规多层钢框架结构的静动力性能,基于不同国家的抗震规范,建立不同设计方式(层设计、柱梁节点设计)和不同值强柱系数的柱脚铰接常规多层钢框架结构模型。采用二阶非线性软件CLAP对模型进行静动力分析,研究模型的破坏机制、最大层间反应及结构构件滞回曲线。结果如下:强柱系数等于1.2的模型,按柱梁节点设计时结构形成局部破坏机制,按层设计时结构形成整体破坏机制;而强柱系数≥1.5的模型结构均形成整体破坏机制。强柱系数≤1.2的模型,按层设计可使常规多层钢框架结构的层间损伤得到缓和;各模型柱端塑性变形能量随强柱系数增大而减小,梁端塑性变形能量则随强柱系数增大而增大。

    Abstract:

    In order to clarify the static and dynamic performance of the conventional multi-layer steel frame structure with column base hinges, based on the seismic codes of different countries, the Multi-layer steel frame structure model with different design methods (layer design, column beam joint design) and different values ??of strong column coefficients are established. The static and dynamic analysis was preformed on the model with the second-order nonlinear software CLAP, which focus on the model's failure mechanism, maximum interlayer response and structural member hysteresis curve. The results shows: the strong column coefficient of model is 1.2, the structure forms a local failure mechanism according to the column-beam joint design method, and the overall destruction mechanism of the structure is formed with the layer-by-layer design method; while the strong column coefficient ≥ 1.5, all structure model forms an overall failure mechanism. For the model with strong column coefficient ≤ 1.2, the layer-by-layer design can alleviate the interlayer damage of the steel frame structure. The plastic deformation energy of the column end of each model decreases with the increase of the strong column coefficient, while the plastic deformation energy of the beam end increases with The strong column coefficient increases.

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虞爱平,王翠红,尹霞,等. 柱脚铰接的常规多层钢框架静动力分析[J]. 科学技术与工程, 2021, 21(7): 2816-2822.
Yu Aiping, Wang Cuihong, Yin Xia, et al. Static and Dynamic Analysis of Conventional Multilayer Steel Frames with Column Base Hinges[J]. Science Technology and Engineering,2021,21(7):2816-2822.

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  • 收稿日期:2020-07-02
  • 最后修改日期:2020-12-26
  • 录用日期:2020-09-20
  • 在线发布日期: 2021-03-31
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