Inspection and Maintenance of Bridge Stay Cable Systems (2005) / Chapter Skim
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Chapter Six - Conclusions and Future Research Needs
Chapter Six - Conclusions and Future Research Needs
Pages 60-62
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From page 60... ...
Issue Method Comments General inspections Visual Visual inspections are, in most cases, the only method used for cable-stayed bridges. These inspections typically include surveys of the exterior surfaces of cables, exposed surfaces of the anchorages, cross cables and their connections (if available)
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From page 61... ...
Detection of grout Impulse Hand-held impulse radar equipment can be placed over the cable and moved longitudinally to voids inside high- radar identify potential grout voids inside the cable sheathing. This method has been tested on density polyethylene mock-up specimens involving HDPE sheathing.
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From page 62... ...
In most cases, it is the combination of NDT techniques together with the experience, knowledge, and judgment of engineers, inspectors, and technicians that can possibly lead to the appropriate answer. The effectiveness and accuracy of many of the methods described here would be significantly enhanced if baseline comparative measurements were available when the bridge is known to be defect free.
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