西安建筑科技大学学报(自然科学版)

提出了一种具备自复位能力的可更换墙脚部件,介绍了该部件的构造和受力机理.建立了带有该新型可更换墙脚部件的钢筋混凝土剪力墙的非线性数值计算模型,进行了剪力墙在低周反复加载下的受力性能分析,研究了墙脚部件中碟簧组的刚度和预压力对剪力墙抗震性能的影响.结果表明,带新型可更换墙脚部件的剪力墙具有良好的抗震性能,结构残余变形小,主体结构损伤低,可实现震后使用功能的快速恢复.

A new type of replaceable corner component with self-centering capability was proposed, and the details and the loading mechanism of the new component were introduced. Furthermoer, the numerical model of RC shear wall with the new replaceable corner components was established, and the seismic performance of shear walls was analyzed and the effect of stiffiness and preload of disc springs in components on the shear walls was studied. The results show that the shear wall with the new replaceable corner components has good seismic performance and the characteristics of low residual deformation and low damage, and the function of the shear wall structure can be quickly restored by replacing the replaceable components after earthquake.

引言
1 新型可更换墙脚部件设计
2 有限元模型建立
3 有限元计算结果和分析
4 结论

图1 新型可更换部件的构造与受力机理示意<br/>Fig.1 Details and loading mechanism of new replaceable component

图1 新型可更换部件的构造与受力机理示意
Fig.1 Details and loading mechanism of new replaceable component

图2 新型可更换部件的滞回性能<br/>Fig.2 Theoretical hysteretic response of new replaceable component

图2 新型可更换部件的滞回性能
Fig.2 Theoretical hysteretic response of new replaceable component

图3 剪力墙模型示意图<br/>Fig.3 Schematic diagram of shear wall model

图3 剪力墙模型示意图
Fig.3 Schematic diagram of shear wall model

图4 剪力墙滞回曲线模拟与试验结果对比<br/>Fig.4 Comparison of simulation and experimental results of hysteretic curves of shear walls

图4 剪力墙滞回曲线模拟与试验结果对比
Fig.4 Comparison of simulation and experimental results of hysteretic curves of shear walls

表1 剪力墙模型设计参数与分析结果<br/>Tab.1 Design parameters and analysis results of shear wall models

表1 剪力墙模型设计参数与分析结果
Tab.1 Design parameters and analysis results of shear wall models

图5 带可更换部件剪力墙的滞回曲线<br/>Fig.5 Hysteretic curves of shear walls with replaceable components

图5 带可更换部件剪力墙的滞回曲线
Fig.5 Hysteretic curves of shear walls with replaceable components

图6 带可更换部件剪力墙的骨架曲线<br/>Fig.6 Skeleton curves of shear walls with replaceable components

图6 带可更换部件剪力墙的骨架曲线
Fig.6 Skeleton curves of shear walls with replaceable components

图7 带可更换部件剪力墙的残余变形<br/>Fig.7 Residual deformation of shear walls with replaceable components

图7 带可更换部件剪力墙的残余变形
Fig.7 Residual deformation of shear walls with replaceable components

图8 剪力墙的损伤情况<br/>Fig.8 Structural damage of shear walls

图8 剪力墙的损伤情况
Fig.8 Structural damage of shear walls

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备注

引言

1 新型可更换墙脚部件设计

2 有限元模型建立

3 有限元计算结果和分析

4 结论

期刊信息