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To use external prestressing to enhance the existing public buildings suffering from loss of reliability, this paper represents the static tests on 14 low strength concrete beams reinforced by external pre-stressed, and demonstrates an experiment on the mechanical performance of model beam, such as flexural bearing capacity of normal side, rigidity and crack. The result of experimental study shows that it is feasible and significant to spread the application of external prestressing to enhance the reliability of existing public buildings. Keywords-low strength concrete; external pre-stressing; static test; reliability

Using External Prestressing to Enhance the Safety Performance of Existing Public Buildings