摘要
借鉴已有大量相关研究成果,基于随机可靠度理论,对抗力概率模型、荷载效应概率模型、功能函数等方面进行系统研究,提出在役混凝土桥梁的可靠度评估方法。采用可视化编程工具Visual Basic 6.0编制相应程序以简化复杂的计算过程,并对混凝土碳化模块等4个模块中的相关计算模型作了适用性分析,给出了建议模型。
There are many complex influencing factors to appraise existing concrete bridge＇s reliability. In the paper, based on random reliability theory and coherent published fruits, resistance probability model, load effect probability model and state function were researched systematically, and reliability appraisal method of existing concrete bridge was put forward. In order to simplify the complicated reliability calculating process, the reliability solution system （V1.0） was programmed by Visual Basic 6.0. The adaptability of calculation models in concrete carbonization module, reinforcement corrosion module, module of reduction factor for yield strength of rusty bar and module of co-operating factor of rusty bar and concrete to concrete bridge was analyzed, and suggested models were offered for reference.
出处
《交通科技》
2008年第1期10-13,共4页
Transportation Science & Technology
关键词
桥梁
可靠度
评估
程序
bridge
reliability
appraisal
program
