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灾害作用下单体建筑的功能损失评估方法研究

发布时间:2018-07-28 06:47
【摘要】:结构与非结构构件的破坏均可导致建筑功能损失。对于满足现行抗震设计规范的建筑,功能损失更多地来源于非结构构件的损伤。目前,建筑物的灾后损失通常以经济损失为主要指标,缺乏对建筑功能损失的定量评估。综合考虑建筑结构构件和非结构构件的破坏,从功能的角度对灾后建筑进行评价,是从使用者的角度进行建筑可用性的评估,对于指导灾后恢复工作有重要意义。本文从非结构构件易损性分析出发,研究建筑构件与建筑功能之间的定量关系,建立建筑功能损失评估的定量模型,并在此基础上评估单体建筑的韧性,探讨建筑灾后恢复过程的优化。本文主要研究工作包括以下几个方面:1.非结构构件抗震性能试验方法综述。结合国内外既文献资料,按照拟静力试验、动力试验、振动台试验的分类,总结常用的非结构构件加载制度以及典型试验,分析不同加载制度适用的非结构构件类型,为开展非结构构件性能试验提供参考。2.建筑给排水管道易损性分析。针对国内建筑常用的PPR、镀锌钢管和PVC等给排水管材,设计并完成给水管道静力和动力往复加载试验,根据试验结果总结不同类型管道的破坏特征,建立易损性曲线。实例分析表明,在隔震建筑中,未使用柔性连接的镀锌钢管给水管道在地震下发生破坏的概率很大。3.建筑功能损失定量评估方法研究。使用层次分析法、故障树分析等方法,建立建筑功能与建筑内部构件和建筑附属设施之间的关系,使用函数关系对建筑功能进行定量化表达。4.某隔震建筑灾后功能损失评估案例分析。使用本文提出的建筑功能损失评估模型,对某隔震建筑进行实例分析,使用故障树分析法、TrueSkillTM评分方法等确定模型系数,并分析了该建筑在地震、暴雨等灾害作用下的功能损失及其恢复过程。结合FEMA P-58、REDi等建筑损失评估方法,对该建筑在遭受一定损失后的恢复流程进行最优化分析。结果表明,对建筑功能进行定量评估能够辅助建筑灾后的恢复工作,按照建筑构件重要性的顺序进行恢复有助于提高建筑的韧性。
[Abstract]:The failure of structure and non-structural member can lead to the loss of building function. For buildings that meet the current seismic design code, the damage of non-structural members is the main source of functional loss. At present, the loss of buildings after disaster is usually based on the economic loss, and the quantitative evaluation of the loss of building function is lacking. Considering the damage of structural and non-structural components and evaluating the post-disaster building from the perspective of function, it is important to evaluate the usability of buildings from the point of view of users, which is of great significance to guide the work of disaster recovery. Based on the vulnerability analysis of non-structural members, this paper studies the quantitative relationship between building members and building functions, establishes a quantitative model for evaluating the loss of building functions, and evaluates the toughness of individual buildings on this basis. The optimization of building disaster recovery process is discussed. The main research work of this paper includes the following aspects: 1. Summary of testing methods for seismic behavior of non-structural members. According to the classification of quasi-static test, dynamic test and shaking table test, the loading system and typical test of unstructured members are summarized, and the types of unstructured members suitable for different loading systems are analyzed. It provides a reference for the performance test of unstructured members. 2. Vulnerability Analysis of Building Water supply and drainage Pipeline. The static and dynamic reciprocating loading tests of water supply pipes are designed and completed for the common domestic water supply and drainage pipes such as PPR-galvanized steel pipe and PVC. According to the test results the failure characteristics of different types of pipes are summarized and the vulnerable curves are established. The analysis of examples shows that the failure probability of galvanized steel pipe without flexible connection under earthquake is very high. Study on quantitative Evaluation method of Building function loss. The relationship between building function and building internal components and ancillary facilities is established by using analytic hierarchy process (AHP) and fault tree analysis. Case study on functional loss Assessment of isolated Building after disaster. Using the building function loss assessment model proposed in this paper, an example of a isolated building is analyzed, and the model coefficients are determined by using the fault tree analysis method and TrueSkill TM scoring method, and the earthquake response of the building is also analyzed. The function loss and recovery process of rainstorm and other disasters. Combined with FEMA P-58 REDi and other building loss assessment methods, the optimal analysis of the recovery process of the building after a certain loss is carried out. The results show that the quantitative evaluation of building function can assist the recovery work after building disasters, and the restoration in order of the importance of building members will help to improve the resilience of buildings.
【学位授予单位】:中国地震局工程力学研究所
【学位级别】:硕士
【学位授予年份】:2017
【分类号】:P315.9;TU317

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