APPLICATION OF DEFLECTION MONITORING IN URBAN RAIL TRANSIT ELEVATED LINES
Deflection is an important parameter to evaluate the safety of bridge structure.Based on the starting point of ensuring the operation safety of urban rail transit elevated lines,this project briefly describes various methods of current deflection monitoring,analyzes the principle and method of total station deflection measurement,and takes an urban rail transit elevated line as an example to elaborate the measurement point layout,error sources and analysis of results of deflection monitoring.The results show that the deflection monitoring can be applied to the structural health monitoring of urban rail transit elevated lines and provide data reference for the safety assessment of operational lines.
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