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近几年来,加劲钢板剪力墙结构作为一种很有潜力的抗侧力结构不断涌现,但关于此类结构的抗震规范却仍基于弹性设计方法。为满足设计过程高效性和可靠性的要求,提出了一种基于性能的抗震设计方法。对钢板剪力墙的抗震设计方法基于非线性目标侧移和预选屈服机制。该方法很简捷,能得出更先进的设计标准。以不同钢板长宽比和不同允许侧移条件下某4层结构为例,通过强震下的非线性时程分析,对该方法进行检验。结果表明:实际的非线性侧移与目标侧移非常接近。将峰值处的位移图与所选屈服机制进行了对比。基于上述试验,还需对该方法进行修正。
In recent years, the stiffened steel plate shear wall structure has emerged as a promising lateral structure, but the seismic code for such structures is still based on the flexible design method. In order to meet the requirements of high efficiency and reliability of the design process, a performance-based seismic design method is proposed. The seismic design method for the shear wall of steel plate is based on the non-linear target lateral displacement and the pre-selected yield mechanism. This method is very simple and can lead to more advanced design standards. Taking a four-layer structure with different aspect ratios and different lateral displacements as an example, the method is verified by nonlinear time-history analysis under strong earthquakes. The results show that the actual nonlinear lateral displacement is very close to the target lateral displacement. The displacement at the peak is compared with the chosen yield mechanism. Based on the above test, the method needs to be amended.