View Full Document

Nondestructive Testing and Evaluation of Steel Bridges



View the full content.
View Full Document
View Full Document

6 views

Unformatted text preview:

Outline Introduction to NDE Introduction to Nondestructive Evaluation NDE Nondestructive Testing and Evaluation of Steel Bridges Deficient Bridges in the US Common problems with steel bridges By James Bader ENCE 710 Spring 2008 NDE methods and their applications Conclusions FHWA Deficient Bridges By State and Highway System What is NDE Nondestructive Evaluation is a means of analyzing and evaluating the condition of various structural components without damaging them Advantageous for use on existing ininservice bridge structures since they can remain intact and open to traffic during testing FHWA Deficient Bridges By State and Highway System Steel Bridge Defects NHS Bridges As of December 2007 D C MARYLAND NHS Bridges Structurally Deficient Functionally Obsolete Total Deficient 115 9 59 68 59 268 18 VIRGINIA 3 306 112 436 548 17 TRI AREA TOTAL 4 891 1 470 168 716 884 3 15 18 DEFICIENT Non NHS Bridges 47 221 As of December 2007 U S Bridges Structurally Deficient Functionally Obsolete Total Deficient NHS TOTAL 116 145 6 160 17 149 23 309 20 Non NHS TOTAL 483 621 66 364 62 643 129 007 27 US TOTAL 599 766 72 524 79 792 152 316 25 12 13 25 Several common defects found in steel bridge structures include NNHS Bridges Structurally Deficient Functionally Obsolete Total Deficient 130 15 69 84 65 MARYLAND 3 657 341 759 1 100 30 VIRGINIA 10 111 1 096 1 798 2 894 29 TRI AREA TOTAL 13 898 1 452 2 626 4 078 10 19 29 DEFICIENT Steel bridges make up about 34 of the near 600 000 reported bridges in the US FOCUS FHWAFHWA HRTHRT 0707017 September 2007 Railroad Pedestrian and 20 clear span bridges As of December 2007 D C Deficient Bridges for all 50 states including D C and Puerto Rico Non NHS bridges are not required to be reported to FHWA thus these values only represent a partial sample of Non NHS bridges in the US DEFICIENT Non NHS bridges are not required to be reported to FHWA thus these values only represent a partial sample of Non NHS bridges in the US Corrosion and pack rusting



Access the best Study Guides, Lecture Notes and Practice Exams

Loading Unlocking...
Login

Join to view Nondestructive Testing and Evaluation of Steel Bridges and access 3M+ class-specific study document.

or
We will never post anything without your permission.
Don't have an account?
Sign Up

Join to view Nondestructive Testing and Evaluation of Steel Bridges and access 3M+ class-specific study document.

or

By creating an account you agree to our Privacy Policy and Terms Of Use

Already a member?