| 强震环境下建筑复合节能墙体抗震性能评估模型 |
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| 引用本文： | 聂瑞.强震环境下建筑复合节能墙体抗震性能评估模型[J].华北地震科学,2019,37(4):78-83. |
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| 作者姓名： | 聂瑞 |
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| 作者单位： | 陕西国防工业职业技术学院,西安,710300 |
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| 摘 要： | 现阶段针对建筑复合节能墙体的抗震性能评估主要根据强震发生后墙体损毁程度实现,评估结果精确度低,因此构建强震环境下建筑复合节能墙体抗震性能评估模型,根据复合节能墙体构件的强度和刚度退化系数,描述强震环境下建筑复合节能墙体损伤情况;在此基础上,采用动态增量分析法(IDA)在不同强度地震动输入条件下,根据建筑复合节能墙体结构响应参数和地震动强度参数构建2种参数的关系曲线——IDA曲线,利用R-O单一函数曲线规则化IDA曲线,获取IDA概率分位曲线,并将50%概率分位曲线斜率用于描述墙体结构损伤的变化,该曲线斜率则为墙体结构损伤指数,依据该指数准确评估强震环境下建筑复合节能墙体抗震性能。实验结果表明,所构建模型可准确分析不同峰值地面加速度时建筑复合节能墙体结构的位移变化,且模型随地震等级不断提升,评估建筑复合节能墙体抗震性结果精度逐渐提高,是一种适合强震环境的建筑复合节能墙体抗震评估模型。
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| 关 键 词： | 强震环境 建筑 复合节能 墙体 抗震性能 评估模型 |
Seismic Performance Evaluation Model of Building Composite Energy-saving Wall under Strong Earthquake Environment |
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| NIE Rui.Seismic Performance Evaluation Model of Building Composite Energy-saving Wall under Strong Earthquake Environment[J].North China Earthquake Sciences,2019,37(4):78-83. |
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| Authors: | NIE Rui |
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| Institution: | (Shaanxi Institute of Technology, Xi′an 710300, China) |
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| Abstract: | At present, in view of the seismic performance evaluation of building composite energy-saving wall, according to the degree of wall damage after strong earthquake, the accuracy of the evaluation results is low. Therefore, the seismic performance evaluation model of building composite energy-saving wall under strong earthquake environment is constructed. Firstly, according to the strength and stiffness degradation coefficient of composite energy-saving wall components, the damage situation of building composite energy-saving wall under strong earthquake environment is described. On the basis of this, IDA curves are constructed according to structural response parameters and seismic intensity parameters of building composite energy-saving wall under different intensity earthquake input conditions. IDA curves are regularized by R-O single function curve to obtain probability dividing curve of IDA, and slope of 50% probability dividing curve is used to describe wall structural damage. The slope of the curve is the damage index of the wall structure. According to the index, the seismic performance of building composite energy-saving wall under strong earthquake environment can be accurately evaluated. The experimental results show that the model can accurately analyze the displacement change of building composite energy-saving wall structure with different peak ground acceleration, and the accuracy of evaluation results of building composite energy-saving wall is gradually improved with the increase of earthquake magnitude. It is a seismic evaluation model of building composite energy-saving wall suitable for strong earthquake environment. |
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| Keywords: | strong earthquake environment building construction compound energy saving the wall seismic performance evaluation model |
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