Because of the rapid development of construction of large-scale bridges with flexible girder, more and more attention should be paid to the evaluation and monitoring of bridge health to insure its safe operation. It is of high significance to verify the design scheme, establish dynamic model and evaluate the security condition by experimental modal analysis. With regard to arch bridges, the modal experiment is much more difficult than that on other types of bridges, such as cable-stayed bridge. A modal experimental method for steel box basket-handle arch bridge is developed based on the ambien...
