欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
从结构生命周期的角度研究了工程结构的可靠性问题．结合历史统计资料研究，指出了在常规荷载作用下使用阶段的结构可靠性可以从设计规范上得到基本保障，而对于施工阶段和老化阶段的结构可靠性以及结构在使用过程中受爆炸、冲击和火灾等偶然灾害作用时的安全性问题尚缺乏深入的研究．从荷载和抗力的分布模式、结构失效概率和（可接受的）目标失效概率、灵敏度分析和设计方案修正等角度对可靠度问题进行了分析，指出采用现行规范的荷载抗力系数（LRFD）方法不能有效解决问题，而可靠度分析方法是解决问题的重要手段与方法．
英文摘要：
The life-cycle reliability of engineering structures was analyzed from a historic viewpoint. Review of historic failure accidents reveals that the structure reliability under ordinary loads and ordinary use purpose can be ensured by current design codes. However, there are still many things to be understood especially regarding structure reliability in construction/aging stages and even more things to be investigated regarding structure safety in some extraordinary conditions such as explosion, shock and fire. The state-of-the-art of these problems were reviewed, especially regarding reliability problems analyzed from the viewpoint of load-resistance distribution model, structure failure probability-（acceptable） target failure probability and sensitivity analysis-structure modification. Due to the difference of load-resistance distribution model and the target failure probability, the well-known load and resistance factor design （LRFD） method may not be an effective approach.
同期刊论文项目
同项目期刊论文
Field inspection on chloride ion-intrusion effect of seawater in dry-wet cycling zone of concrete st
Determination and application of the sharp degradation point of concrete under environmental actions
Spatial variability-based corrosion risk assessment and strategy of repair and maintenance for RC st
期刊信息
位置：