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The Prediction of Residual Life for Existing Building Structures

LI Guang-hui, DU Chao, JIANG Xiao-dong (College of Civil & Building Engineering,Zhengzhou University of Technology,Zhengzhou 450002,China)  
Some concepts about lives of existing building structures are first reviewed in this paper.Using the state-of-art research achievements on structural resistance, on the basis of taking structural resistance as a non-smooth stochastic process and the definition of service reliability,a new calculation method of residual life for existing building structures is presented based on the definition of acceptable minimal service reliability according to the limit state of sectional constraints,providing a theoretical basis for the whole-life optimization of existing building structures.
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