Seismic Performance Evaluation of Reinforced Concrete Buildings Using Columns with Wing Walls

研究的目的是发展实用的评估翼墙加筋柱的极限强度和变形能力的方法。从2007年到2010年，对具有翼壁的柱构件进行了一系列的半比例尺试验，以验证评估方法。前三年进行了抗剪试验，确定了构件的极限抗剪强度。将实测抗剪强度与基于常规设计公式和新公式的计算强度进行了比较，发现新公式与第一组试验结果具有较好的相关性。2010年对6个试件进行了抗弯试验，探讨了极限抗弯变形能力的设计细节。将极限变形与设计形式实践计算结果进行了比较，得到了较好的相关性。采用轴向剪切-挠曲相互作用模型对试件进行了分析，得到了包含强度衰减在内的荷载变形关系，与试验结果更为吻合。

The objective of the study is to develop practical methods of evaluation the ultimate strength and deformability of reinforced columns with wing walls. A series of tests on half-scale specimens representing the column members with wing walls have been conducted from 2007 to 2010 to verify the evaluation methods. Shear tests were conducted in the first three years, by which the ultimate shear strengths of the members were identified. The measured shear strengths were compared with the calculated strengths based on the conventional design formula as well as the new formula proposed by the authors, by which a better correlation was observed with the test results of the first series. Flexural tests were conducted for six specimens in 2010 to investigate the design details on the ultimate flexural deformability. The ultimate deformations are compared with the calculation using the proposed design form practice, by which fair correlations are obtained. Axial shear flexure interaction model was also applied to the specimens, by which the load deformation relations including the strength decay were correlated with more accuracy to the test results.