结构耐久性

• Based on the multilayer analysis , the method establishes a model of multilayer synthetic assessment of rc structure durability and makes a synthetic assessment of rc structure durability according to the criterion of gray relevancy
  该方法以层次分析法为基础，建立了结构耐久性多层次综合评定模型，并以灰色关联度为准则，对结构耐久性进行综合评定。
• Because commonly the degeneration of the resistance begins with the corrosion of the steel in the concrete , it is very important for durability research to count the beginning corrosion time of the steel in the concrete
  由于一般情况下钢筋腐蚀是结构抗力退化的开始，因此计算钢筋混凝土结构中的钢筋初始锈蚀时间对于进行结构耐久性方面的研究具有很重要的意义。
• Presently , durability degradation of the crc structures has led to the disastrous results in the civil engineering worldwide . consequently , durability of crc structures is becoming an important challenge to the engineering profession
  目前，由于腐蚀造成钢筋混凝土结构耐久性退化已成为当今土木工程界面临的一大灾害，引起人们的普遍关注，成为研究的一大热点。
• In this paper , the system of durability detecticn and evaluation of concerte structures was built on some theories of statistics and standard reliability . this system depended on the ways and experience of detection
  本文运用三级综合模糊评判模式和结构可靠度理论，并结合现有土木工程结构检测方法及手段，建立起一套适合于工程实践的混凝土结构耐久性检测与评估体系。
• Since the influence of crack on the durability of segments is uncertain and fuzzy , this paper established the durability damage membership functions for the segment surface crack width , length , orientation and density respectively
  同时，鉴于表面裂缝对管片结构的耐久性影响具有模糊性的特点，分别建立了用于计算评价管片表面裂缝宽度、长度、方向和密度等因素对管片结构耐久性损伤的模糊隶属度函数。
• Abstract : this paper summarized the rece nt research results about the durability of structures , introduced their cu rrent application in durability design , appraisal , estimation of rest life a nd strategy of maintenance and strengthening as well as in other fields
  文摘:总结了近年来结构工程领域耐久性研究成果在结构耐久性设计、评估、剩余寿命预测、维修加固决策以及与其它相关领域结合的应用现状。
• Due to various corrosive effects , reinforced concrete structures in corrosive environments had shown serious deterioration , which usually caused by concrete deterioration , rebar corrosion , degradation of bond strength between rebar and concrete
  腐蚀环境下服役的钢筋混凝土结构由于长期受到腐蚀作用，造成混凝土性能劣化、钢筋锈蚀、钢筋与混凝土之间粘结退化，导致钢筋混凝土结构耐久性降低而提前发生破坏。
• It is widely concerned in durability of reinforced concrete structures . some efforts have been made in reliability based assessment and test research of durability for reinforced concrete structures in this paper . the major contents are mainly summarized as follows : 1
  钢筋混凝土结构的耐久性是一个广为关注的问题，本文针对这一问题在钢筋混凝土结构耐久性评估及耐久性试验方面做了部分研究工作，主要研究内容包括： 1
• Based on the predecessors " research , some problems of the structure durability are studied in this paper and the actual work done is as follows : a description of the background , significance , content , and methods of rc structure durability studies is presented in this paper
  本文在总结前人研究成果的基础上，对结构耐久性的研究做了一些探索，主要开展了以下几个方面的工作：阐述了钢筋混凝土结构耐久性的研究背景、研究意义以及主要研究内容和研究方法。
• Through the investigation research on practical damaged element , considering the effect of corrosion , high temperature , wet environment , damage ( crack ) on structural durability , bearing capacity . this paper established the reliability analysis method of large - scale industrial factory , and applied the fuzzy mathematics to establish the factor set and weight coefficient set on the basis of expert experience . an analyzed method for fuzzy evaluation of structural element and bent frame structure system reliability is put forward
  通过对实际结构破损构件的调查，考虑腐蚀，高温，环境潮湿，破损(裂缝)等因素对结构耐久性、承载力的影响，论文建立了大型工业厂房可靠度的计算方法，利用专家经验和模糊数学方法建立了模糊评价的因素集和权重集，对钢筋砼结构构件和厂房排架结构体系进行了模糊评价。