【摘 要】
：
Prestress is one of the most important indicators in the safety performance evaluation of the serviced prestressed concrete beam.From many engineering examp
【机 构】
：
College of Civil Engineering,Fuzhou University & Architectural Engineering Department of Fujian Chua
【出 处】
：
The 7th International Conference on Bridge Maintenance, Safe
论文部分内容阅读
Prestress is one of the most important indicators in the safety performance evaluation of the serviced prestressed concrete beam.From many engineering examples,we can see the reduce of the prestress level not estimated bring the terrible harm to the structure.At present,the standard gives the specific calculation formula to the loss of prestress calculation,but the loss of prestress is a time function and influences each other,plus the difference of construction method,which would bring about that we cant accurate estimate the loss of prestress through the calculation.So the effective prestress measurement for practical engineering is very important.
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