Inhaul cable corrosion fatigue test method under coupling action of alternate load and environmental corrosion
A technology of alternating load and environmental corrosion, which is applied in the field of cable testing, can solve the problems of small number of cable studies and lack of in-depth research, and achieve the effect of convenient purchase and use, and simple production
Inactive Publication Date: 2015-12-02
CHONGQING JIAOTONG UNIVERSITY
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[0002] At present, there have been relevant research results at home and abroad on the material corrosion of cable-stayed bridge cables in the unstressed state and the stress corrosion under static loads, and the research methods for cable corrosion are mostly electrochemical methods, but for cable-stayed bridges. The number of studies on the corrosion of cables under stress is very small, and there is even a lack of in-depth research on the corrosion fatigue of cable-stayed bridges under alternating loads, which is far from the actual service conditions of long-term corrosion of cables under alternating loads
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[0027] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings; it should be understood that the preferred embodiments are only for illustrating the present invention, rather than limiting the protection scope of the present invention.
[0028] As shown in the figure, the cable corrosion fatigue test method under the coupled action of alternating load and environmental corrosion provided by the present invention firstly makes the reaction force test bench 1, and the corrosion test box 2 is arranged inside the reaction force test bench, Then the cable sample 4 is penetrated from the side wall of the reaction force test bench, then through the corrosion test box, and finally passed through the other side wall of the reaction force test bench, and finally one end of the cable sample is passed through the anchor 5 Anchoring is anchored on one side of the reaction test bench, and the other end is fixed on the...
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The invention discloses an inhaul cable corrosion fatigue test method under coupling action of alternate load and environmental corrosion. The method comprises the following steps: firstly, a counter-force experiment table is made; secondly, a corrosion test box is arranged inside the counter-force experiment table; thirdly, an inhaul cable sample goes into one wing wall of the counter-force experiment table, runs through the corrosion test box and goes out from the other wing wall of the counter-force experiment table; fourthly, one end of the inhaul cable sample is anchored at one side of the counter-force experiment table through an anchorage device, and the other end of the inhaul cable sample is fixed at the other side of the counter-force experiment table through a tension device; fifthly, alternate load is applied on the inhaul cable sample through the tension device; sixthly, an acid rain environment and a hygrothermal environment in the atmosphere are simulated alternately by utilization of the corrosion test box. The corrosion fatigue test method for an inhaul cable under coupling action of alternate load and environmental corrosion is researched.
Description
technical field [0001] The invention belongs to the field of cable tests, and in particular relates to a cable corrosion fatigue test method under the coupled action of alternating load and environmental corrosion. Background technique [0002] At present, there have been relevant research results at home and abroad on the material corrosion of cable-stayed bridge cables in the unstressed state and the stress corrosion under static loads, and the research methods for cable corrosion are mostly electrochemical methods, but for cable-stayed bridges. The number of studies on the corrosion of cables under stress is very small, and there is even a lack of in-depth research on the corrosion fatigue of cable-stayed bridges under alternating loads, which is far from the actual service conditions of long-term corrosion of cables under alternating loads . Therefore, it is of great theoretical significance to explore the mechanism of corrosion fatigue damage of cables under alternatin...
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IPC IPC(8): G01N17/00
Inventor 姚国文邓国军陈雪松
Owner CHONGQING JIAOTONG UNIVERSITY