基于构件功能组装的建筑抗震韧性评价方法
作者:
作者单位:

1.同济大学 土木工程防灾国家重点实验室, 上海 200092;2.同济大学 土木工程学院, 上海 200092

作者简介:

卜海峰(1993—),男,博士生,主要研究方向为建筑抗震韧性评价。E-mail: bhf@tongji.edu.cn

通讯作者:

蒋欢军(1973—),男,教授,博士生导师,工学博士,主要研究方向为建筑抗震防灾。 E-mail: jhj73@tongji.edu.cn

中图分类号:

TU971

基金项目:

国家重点研发计划(2017YFC1500701)


A Method for Seismic Resilience Evaluation of Buildings Based on Component Function Assembly
Author:
Affiliation:

1.State Key Laboratory of Disaster Reduction in Civil Engineering, Tongji University, Shanghai 200092, China;2.College of Civil Engineering, Tongji University, Shanghai 200092, China

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    摘要:

    为了量化单体建筑的抗震韧性,提出了一种基于构件组装的通用型功能损失量化方法和对应的建筑抗震韧性评价方法。为建筑构件定义一种基于概率的功能损失,以考虑构件功能损失在地震作用下的不确定性。使用树状层级结构组装构件的功能以获取建筑的功能损失。使用基于修复方案的建筑震后功能恢复模型获取建筑功能时变函数曲线。基于蒙特卡洛法给出单体建筑抗震韧性量化的计算方法。最后,应用该方法对一幢10层钢筋混凝土框架结构公寓建筑的抗震韧性进行了评价,并对比分析了不同韧性提升方法对该建筑抗震韧性的影响。算例分析结果表明,该方法能较合理地评价建筑的抗震韧性,案例建筑在设防烈度地震作用下的韧性较好,填充墙等非结构构件对建筑抗震韧性有较大影响;不同韧性提升方案中,提高建筑构件抗震性能和优化建筑震后修复策略的效果较为显著。

    Abstract:

    To quantify the seismic resilience of buildings, a general functional loss quantification method of buildings based on the component function assembly and a corresponding seismic resilience evaluation method of buildings were proposed. A probability-based function loss is defined for components to consider the uncertainty in earthquakes. A hierarchic structure is used to assemble the component function loss to acquire the building function loss. Based on the post-earthquake function recovery model driven by the restoration scheme, the time-varying function curve of the building function is obtained. The calculation method of seismic resilience of buildings is presented based on the Monte Carlo method. The method is applied to a 10-storey apartment building with reinforced concrete frame structure, and the effects of different resilience enhancement methods on the building were compared. The results show that the proposed method can reasonably evaluate the seismic resilience of buildings. The seismic resilience of the building in the earthquake with fortification intensity is good. The non-structural components like infilled walls have great effects on the seismic resilience of buildings. Among various kinds of resilience enhancement methods, the seismic improvement of components and the optimization of post-earthquake repair schemes are more efficient.

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卜海峰,蒋欢军,和留生.基于构件功能组装的建筑抗震韧性评价方法[J].同济大学学报(自然科学版),2022,50(8):1127~1135

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  • 收稿日期:2021-07-26
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  • 在线发布日期: 2022-08-24
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