钢筋混凝土结构施工期间可靠度的分析方法

施工期间对结构的安全性和可靠性有着严格的要求．由于施工过程中，结构是一个时变结构，结构的抗力是一个随机过程，荷载也具有与使用期不同的特点，所以有必要研究施工期间结构的可靠度．在已有的钢筋混凝土结构现场施工活荷载统计资料的基础上，考虑了抗力在施工期间随时间增长的特性，研究了结构的可靠度，分析了算例．结果表明：本方法切实可行，对施工期间的安全管理有一定的指导意义．

Analysis method of the structure reliability of the reinforced concrete structure during the construction period

Structure safety and reliability are firmly required during construction period. It is necessary to study the reliability of the structure during the construction because the structure is a time-varying system and the variable loads are random processes about time with particular characteristics different with the use period. This paper studies the reliability of structure during the construction period based existing data and the consideration of structural resistance increasing with time, and analyzed an example, the result of the analysis shows this method is available to the analysis of the structure reliability. So it is very important to the security management during the construction period.