【作者】 程磊；

【导师】 杨志勇；

【作者基本信息】 武汉理工大学 ， 结构工程， 2007， 硕士

【摘要】 地震作为一种自然灾害，它对社会生活和地区经济发展有着广泛而深远的影响，认识地震灾害的特点对于做好防灾减灾工作是十分重要的。地震作用存在大量不确定性因素，因而用可靠度理论进行结构的抗震研究是比较合适的。本文以可靠度理论为基础，在广泛借鉴国内外同行研究成果的基础上，对混凝土框架结构的抗震分析问题作了进一步的研究。研究内容主要包括以下几方面：1、简述我国建筑结构可靠度设计方法的现状，通过阅读大量相关文献，总结了建筑结构可靠性设计中存在的问题及其发展趋势；简述了地震灾害的危害和结构抗震可靠性的研究进展，介绍了结构可靠度计算的蒙特卡洛法。2、通过对地震烈度的概率分布及其统计参数进行分析得出地震作用的概率分布及统计参数的表示方法并且通过ANSYS概率分析程序进行了验证，从而为结构概率分析提出合适的分析方法。3、根据钢筋混凝土框架结构在地震作用下受力变形特点，采用概率极限状态设计方法，在基于结构设计规范规定的失效准则下，研究了钢筋混凝土框架结构抗震可靠性分析的计算方法。4、利用ANSYS软件的参数化语言(APDL)，分别采用直接抽样法和拉丁超立方抽样法，编写了框架结构蒙特卡洛随机有限元法抗震可靠性分析程序，通过实际计算对两种方法进行比较，并得出一些有益结论。5、采用基于拉丁超立方抽样法的蒙特卡洛随机有限元法，分析了某地区的某钢筋混凝土框架结构在设计基准期内地震作用下的随机响应，并探讨了地震作用的计算方法，最后进行了承载能力极限状态和正常使用极限状态的抗震可靠度计算。更多还原

【Abstract】 As a kind of natural disaster, the earthquake has made a widespread and the profound influence to the social life and the local economy development. So, it is extremely important to get to know the characteristics to take measures against this disaster in the disaster reduction work. Earthquake function existence massive indefinite factors, thus, it is quite appropriate to carry on the reliability theory in the studies. This article bases on the reliability theory, and as a foundation of widely profits from the domestic and foreign colleagues research results, has done the further research on the analysis of the concrete frame construction’s earthquake resistance. The research content mainly includes following several aspects:1、Simply states the present situation of construction structure’s reliability design methods in our country, and reading massive correlative literatures, I summarize the questions exist in the construction reliability design and its development tendency .Then, I summarize the harm of the earthquake disaster and the research progress of the structure earthquake resistance reliable, and introduce the way of Monte Carlo in structure reliability computation.2、In accordance to foundation of the analysis to the earthquake intensity probability distribution and its the statistical parameter, I has obtained the probability distribution and the statistical parameter expression method of the earthquake function , And has made a confirmation through the ANSYS probabilistic analysis procedure. So that it proposes the appropriate analysis method for the structure probability analysis.3、According to the stress distortion characteristic of the reinforced concrete frame construction under the earthquake function, applies the probability limit condition design method, which bases on the structural design standard stipulation expiration criterion, has studied the probabilistic analysis computational method of reinforced concrete frame construction under the earthquake.4、Uses the parameter language (APDL)which in ANSYS software separately applies the direct sampling method and the Latin ultra cubic sampling method, has compiled the procedure of Monte Carlo stochastic finite method for earthquake resistance of reinforce concrete frame construction ,and actually calculates in two methods on the comparison, then draws some beneficial conclusions.5、It uses stochastic Monte Carlo finite method which bases on Latin ultra cubic sampling to analyze some reinforced concrete frame construction’s stochastic response under the earthquake function, and has discussed the method of earthquake function computation, finally has carried on reliability computation which under the bearing capacity limiting condition and the normal use limiting condition earthquake resistance.更多还原