为了较好地解决装配式剪力墙保温隔热的要求,提出了T型边缘构件装配式自保温剪力墙,其由T型自保温边缘构件、剪力墙腹板和齿槽竖缝组成.首先通过T型边缘构件装配式自保温剪力墙试件的低周反复荷载试验,研究该装配式剪力墙的抗震性能和破坏模式.试验结果表明:T型边缘构件装配式自保温剪力墙的滞回曲线较为饱满,具有较好的延性与耗能能力,其破坏模式为齿槽剪切破坏.在试验数据验证的基础上,采用数值模型分析了不同齿槽强度对剪力墙整体性能的影响.基于连续连杆法,通过理论分析提出了T型边缘构件装配式自保温剪力墙的抗侧刚度与承载力计算公式.将理论计算值与试验值、模拟值进行对比,结果表明理论计算值较为精确,可为T型边缘构件装配式自保温剪力墙的设计提供参考.
To better meet the thermal insulation requirements of prefabricated shear walls, a prefabricated self-insulating shear wall with T-shaped boundary members was proposed, which consists of T-shaped self-insulating boundary members, shear wall webs, and alveolar vertical joints. First, the seismic performance and failure mode of this prefabricated shear wall were studied through a cyclic loading test on the specimen of the prefabricated self-insulating shear wall with T-shaped boundary members. The test results indicate that the hysteretic curve of the prefabricated self-insulating shear wall with T-shaped boundary members is relatively full, and it has good ductility and energy dissipation capacity; its failure mode is the shear failure of the alveolar vertical joint. Based on the validation of the experimental data, a numerical model was used to analyze the efiects of difierent alveolar strengths on the overall performance of the shear wall. Based on the continuous link method, calculation formulas for the lateral stifiness and bearing capacity of the prefabricated self-insulating shear wall with T-shaped boundary members were proposed through a theoretical analysis. A comparison among the theoretical calculation values, experimental values, and simulation values shows that the theoretical calculation values are relatively accurate, which can provide a reference for the design of the prefabricated self-insulating shear wall with T-shaped boundary members.
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