Inspection and Maintenance of Bridge Stay Cable Systems (2005) / Chapter Skim
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Appendix B - Statistical Analysis of Survey Results
Appendix B - Statistical Analysis of Survey Results
Pages 72-75
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From page 72... ...
% U.S. Canada % Canada % Total Yes 9 32.1 2 15.4 26.8 No 1 3.6 9 69.2 24.4 Not known 7 25.0 2 15.4 22.0 Not applicable 10 35.7 0 0.0 24.4 No answer 1 3.6 0 0.0 2.4 QUESTION 4.6 ARE THE COATINGS/TREATMENTS ON MAIN TENSION ELEMENT DISCONTINUED OR REMOVED WITHIN THE ANCHORAGE ZONE?
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From page 73... ...
% U.S. Canada % Canada % Total Yes 18 64.3 4 30.8 53.7 No 7 25.0 9 69.2 39.0 Not known 1 3.6 0 0.0 2.4 Not applicable 1 3.6 0 0.0 2.4 No answer 1 3.6 0 0.0 2.4 QUESTION 4.14 DO CABLES HAVE NEOPRENE RINGS NEAR THE TOP AND BOTTOM ANCHORAGES?
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From page 74... ...
% U.S. Canada % Canada % Total Yes -- from the beginning 4 14.3 0 0.0 9.8 Yes -- retrofitted to correct vibrations 2 7.1 3 23.1 12.2 No 21 75.0 10 76.9 75.6 No answer 1 3.6 0 0.0 2.4 QUESTION 4.18 DO THE CABLES HAVE VISCOUS DAMPERS INSTALLED AT DECK OR TOWER LEVELS?
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From page 75... ...
% U.S. Canada % Canada % Total Acoustic wire break detection 3 10.7 1 7.7 9.8 Vibration monitoring 2 7.1 1 7.7 7.3 Force measurements 0 0.0 0 0.0 0.0 Other 0 0.0 0 0.0 0.0 Not performed 21 75.0 11 84.6 78.0 Not known 1 3.6 0 0.0 2.4 No answer 1 3.6 0 0.0 2.4 QUESTION 4.26 TYPES OF SENSOR-BASED LONG-TERM MONITORING PERFORMED ON THE CABLES?
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