论文部分内容阅读
为了研究型钢自密实混凝土叠合剪力墙的抗震性能以及恢复力特性,对1个全现浇型钢普通混凝土剪力墙试件和5个型钢自密实混凝土叠合剪力墙试件进行了低周反复加载试验。通过分析试验所得的剪力墙的水平荷载-位移骨架曲线,建议将其简化为以屈服点、峰值荷载点、极限点为特征点的三折线模型,并根据试验现象以及理论分析结果给出骨架曲线中各特征点参数的计算方法。对试验所得滞回曲线进行回归分析,得到了墙体的抗侧刚度退化规律,据此得出适用于型钢自密实混凝土叠合剪力墙的恢复力模型,并用试验得到的骨架曲线与滞回曲线进行验证。结果表明,由此恢复力模型求得的计算曲线与试验曲线吻合程度较好,该模型可以较好地反映型钢自密实混凝土叠合剪力墙的恢复力特性,可用于计算地震作用下以受弯破坏为主的型钢自密实混凝土叠合剪力墙的荷载-位移滞回曲线。
In order to study the seismic behavior and the restoring force characteristics of the self-compacting steel reinforced self-compacting shear wall, a total of 1 cast-in-situ concrete normal-shear wall specimens and 5 self-compacting concrete shear wall specimens were subjected to low Week repeated loading test. By analyzing the horizontal load-displacement skeleton curve of the shear wall, it is suggested to simplify the model to a tri-fold line model with the yield point, the peak load point and the limit point as the characteristic points. According to the experimental phenomena and the theoretical analysis results, the skeleton Calculation method of each characteristic point parameter in curve. The regression analysis of the hysteresis curve obtained from the test results in the degradation law of the lateral stiffness of the wall. Based on this, a restoring force model suitable for the self-compacting shear wall of the section steel is obtained. Curve to verify. The results show that the calculated curve obtained by the restoring force model is in good agreement with the experimental curve. The model can well reflect the restoring force characteristics of the self-compacting concrete shear wall, and can be used to calculate the seismic response LOAD - DISPLACEMENT HYSTERESIS CURVES OF SECTIONAL STEEL SECTIONS WITH SELF - COMPACTING CONCRETE SHEAR WALL.