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为了研究楔形节点现浇连接的装配式钢筋混凝土剪力墙的抗震性能,对剪跨比为2.1的装配式钢筋混凝土剪力墙试件进行足尺拟静力试验,并与相同尺寸的现浇墙体试件进行对比。试验结果表明,预制墙试件与现浇墙试件的破坏形态基本相同,为竖向钢筋受拉屈服、墙底混凝土受压破坏;预制墙试件的极限位移角为1/69,比现浇墙试件略小,开裂荷载与承载力均小于现浇墙试件;预制墙试件的滞回曲线较饱满,其延性性能满足抗震要求。并利用有限元分析软件ABAQUS对此楔形节点现浇连接的装配式钢筋混凝土剪力墙进行了数值模拟,将模拟结果与试验结果进行对比,模拟得到的承载力、侧移均与试验结果接近,两个方法得到的骨架曲线也基本吻合。
In order to study the seismic behavior of the fabricated RC shear walls with cast-in-place wedged joints, the full-scale pseudo-static test was carried out on the assembled RC shear wall specimens with a shear-span ratio of 2.1 and with the same size cast- Wall specimens for comparison. The test results show that the failure modes of the precast wall specimens and the cast-in-situ specimens are basically the same, yielding to the vertical reinforcement yielding and compressing the concrete at the bottom of the wall. The ultimate displacement angle of the precast wall specimens is 1/69, Pouring wall specimens slightly smaller, cracking load and bearing capacity are less than cast-in-situ specimens; precast wall specimens hysteresis curve is more full, and its ductility to meet seismic requirements. And the finite element analysis software ABAQUS was used to simulate the fabricated RC shear wall with cast-in-place wedged joints. The simulation results were compared with the test results. The calculated bearing capacity and lateral displacement were close to the test results, The skeleton curves obtained by the two methods are basically the same.