Application of hybrid monitoring method in bridge static load test
In order to alleviate the contradiction between the cost of bridge monitoring systems and the number of measurement points,and obtain more comprehensive monitoring information,a hybrid monitoring method combining measured data and numerical models was explored.Firstly,the classical structural equilibrium equation was simplified through appropriate assumptions,then the structural flexibility matrix was extracted from the finite element model,and the equivalent load was calculated from the measured data.Finally,it was brought back to the original equation to calculate the required structural response.The research results show that this method realizes the expansion from partial response data to global response data.and has high computational efficiency,which can avoid repeated finite element analysis.the hybrid monitoring technology has a high accuracy in calculating the structural response,and the error between the calculated response and the actual response is within 10％.
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