Tension test method for stay cable steel strand of partially cable-stayed bridge
A cable-stayed bridge cable steel and testing method technology, applied in the direction of tension measurement, etc., can solve the problems of short cable, low tension accuracy of cable steel strands, and difficult to accurately identify the bending stiffness of cable steel strands, etc. To achieve the effect of convenient testing process
Inactive Publication Date: 2011-07-13
ZHEJIANG UNIV
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The invention provides a tension test method for a stay cable steel strand of a partially cable-stayed bridge. A steel strand of a certain length is fixed in the stay cable steel strand of the partially cable-stayed bridge, and the fundamental frequency and bending stiffness of the steel strand are tested, so that the tension of the stay cable steel strand can be calculated based on the cable free vibration computation theory considering the influence of bending stiffness according to the fundamental frequency, bending stiffness, length and quality parameters of the steel strand. By utilizing the test method, the high-precision tension test result of the steel strand can be obtained; and moreover, the test process is convenient, and the test method meets the requirement of tension test in the construction process and operation period of the stay cable steel strand of the partially cable-stayed bridge.
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