New Safety Assessment Model for Civil Engineering Structure

To find an effective model for safety assessment of civil engineering structures under the uncertainty and data lack, the unascertained set was introduced to measure the reliability and a safety assessment model with credible identification principle was set up. Then, engineering practice for the reliability assessment of a cable-stayed bridge showed that the model proposed here can complete the safety assessment systematically and scientifically without any assumption. The work has significance in theory and practice for structural safety assessment.