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生命线工程抗震可靠性分析 被引量:1
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作者 王东炜 赵成刚 陈艳艳 《自然灾害学报》 CSCD 1995年第S1期64-67,共4页
本文对作者在生命线工程抗震可靠性分析的分析准则、单体结构可靠度算法、系统可靠性评估和基于系统可靠性分析的优化设计等诸方面所作的工作进行了综述。
关键词 生命线 城市抗震防灾 工程抗震对策 生命线工程 抗震可靠性分析
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钢筋混凝土框架结构抗震可靠性分析
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作者 雷小金 《科技与生活》 2012年第18期102-103,共2页
采用大型通用有限元程序ANsYs提供的ApDL语言将其结构分析与其PDs模块的统计分析能力相结合,实现可靠性分析的蒙特卡罗有限元法。结合现行《建筑抗震设计规范》,针对钢筋混凝土框架结构抗震可靠度进行了研究。
关键词 钢筋混凝土框架结构 抗震可靠性分析 蒙特卡罗法有限元
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沉陷区地下桩基的抗震性能分析与研究
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作者 胡小勇 刘萍 《西安职业技术学院学报》 2018年第4期12-15,共4页
从历次地震对地下建筑物造成的破坏来看,地下工程的震害特征分析研究以及地震可靠性分析对于桩基的抗震设计,防震减灾等工作具有重要的研究价值.地下桩基在地震时的破坏机理比地上结构要复杂,影响因素很多.早期的桩基地震可靠性分析主... 从历次地震对地下建筑物造成的破坏来看,地下工程的震害特征分析研究以及地震可靠性分析对于桩基的抗震设计,防震减灾等工作具有重要的研究价值.地下桩基在地震时的破坏机理比地上结构要复杂,影响因素很多.早期的桩基地震可靠性分析主要是基于经验方法,借用震害对桩基的破坏率来进行分析设计的,现在采用有限元概率模型对桩基震害进行分析,这种基于理论计算的方法能够考虑多种随机因素的影响.通过Ansys有限元模型计算分析出管道的破坏状态,为地下桩基设计提供帮助. 展开更多
关键词 地下桩基 有限元 抗震可靠性分析
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Seismic Reliability and Rehabilitation Decision of Water Distribution System 被引量:2
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作者 柳春光 何双华 《Transactions of Tianjin University》 EI CAS 2010年第3期223-228,共6页
In order to evaluate the seismic reliability of water distribution system and make rehabilitation decisions correspondingly, it is necessary to assess pipelines damage states and conduct functional analysis based on p... In order to evaluate the seismic reliability of water distribution system and make rehabilitation decisions correspondingly, it is necessary to assess pipelines damage states and conduct functional analysis based on pipe leakage model. When an earthquake occurred, the water distribution system kept serving with leakage. By adding a virtual node at the centre of the pipeline with leakage, an efficient approach to pressure-driven analysis was developed for simulating a variety of low relative scenarios, and a hydraulic leakage model was also built to perform hydraulic analysis of the water supply network with seismic damage. Then the mean-first-order-second-moment method was used to analyse the seismic serviceability of the water distribution system. According to the assessment analysis, pipes that were destroyed or in heavy leakage were isolated and repaired emergently, which improved the water supply capability of the network and would constitute the basis for enhancing seismic reliability of the system. The proposed approach to seismic reliability and rehabilitation decision analysis on water distribution system is demonstrated effective through a case study. 展开更多
关键词 water distribution system hydraulic analysis leakage model seismic reliability rehabilitation decision
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Research on Seismic Reliability and Damage of Reinforced Concrete Frame
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作者 Xin WANG ding LIU 《International Journal of Technology Management》 2015年第5期90-92,共3页
This paper first introduces the basic principle of seismic risk analysis, and then put forward the basic concept of structures global seismic fragility, aiming at the existing problems of traditional analysis method, ... This paper first introduces the basic principle of seismic risk analysis, and then put forward the basic concept of structures global seismic fragility, aiming at the existing problems of traditional analysis method, combined the method of analytical approximation degree of structure reliability with Performance-Based Seismic Design (PBSD), put forward the analysis method of structural reliability and the performance of the global seismic fragility, are calculated by using the finite element reliability method of structures global seismic fragility. Taking the maximum interlamination relative deformation as indicators of overall performance, we analyze seismic fragility of five storey RC frame structure, rendering the seismic fragility curves corresponding to different performance requirements and different earthquake action. 展开更多
关键词 Reinforced concrete frame structure VULNERABILITY RELIABILITY
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