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Danbro Selected Data For Maps Prioritizing / Ranking Arne Henriksen NVF Annual Bridge Conference 2015.

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Presentation on theme: "Danbro Selected Data For Maps Prioritizing / Ranking Arne Henriksen NVF Annual Bridge Conference 2015."— Presentation transcript:

1 Danbro Selected Data For Maps Prioritizing / Ranking Arne Henriksen NVF Annual Bridge Conference 2015

2 New Digital Maps Purpose  Administration will be less expensive and easier (80%)  Better access to data (Online)  New data available for administrator, police and road user  Bridge span will be compared with the actual truck load on the span Time Schedule Maps will be available at the end of this year NVF Annual Bridge Conference 2015 2.

3 Overview of bridges – road clearance Favrskov Municipality NVF Annual Bridge Conference 2015 3. Municipality limits under Rail way bridges Stats road bridges Require all bridges in one system x x x

4 Clearance possibilities for a 4,00 m high truck NVF Annual Bridge Conference 2015 4.

5 Overview of bridges – carrying capacity Favrskov Municipality NVF Annual Bridge Conference 2015 5.

6 Span and load capacity NVF Annual Bridge Conference 2015 6.

7 Load Limits (old map) Do not compare the load from the actual transport with the span width of the actual bridge NVF Annual Bridge Conference 2015 7.

8 Overview vehicle classification WEB number Diagram, Truck load, various span widths Data for one specific truck/load (one WEB number) Combine Danbro data with vehicle Classification system NVF Annual Bridge Conference 2015 8.

9 Map passage limits by using a web number NVF Annual Bridge Conference 2015 9.

10 More structures on one location NVF Annual Bridge Conference 2015 10. If double icons the color for the bridge with lowest limits is shown first

11 Road Authorities / Bridge Administrators Municipalities Railways (are responsible for many road bridges in Denmark) Road Directorate How to get information on the map Structures have to be registered in Danbro Clearance, span width and load capacity must be updated as soon as changes takes place. Responsibility All info approved and controlled by the Road Administrator (Clearance) Bridge Administrator (Load capacity) NVF Annual Bridge Conference 2015 11.

12 Prioritizing Repair Projects

13 Prioritizing repair projects Existing method a) Net present value b) Evaluation Load capacity of bridge deck Load capacity of edge beam Defect waterproofing layer Chloride influence ASR influence NVF Annual Bridge Conference 2015 13.

14 Prioritizing existing method Special investigation form – deterioration rate NVF Annual Bridge Conference 2015 14.

15 NVF Annual Bridge Conference 2015 15.

16 NVF Annual Bridge Conference 2015 16.

17 NVF Annual Bridge Conference 2015 17.

18 Load test to evaluate deck capacity NVF Annual Bridge Conference 2015 18.

19 Load test to evaluate deck capacity NVF Annual Bridge Conference 2015 19.

20 Capacity of edge beams Load tests as an alternative to new calculation None destructive test, easy to execute and repeat NVF Annual Bridge Conference 2015 20.

21 Test of edge beam / railing NVF Annual Bridge Conference 2015 21.

22 Defect waterproofing membrane NVF Annual Bridge Conference 2015 22.

23 Chloride evaluation 100% increase of CL contact Repair need after few decades Uniform way to describe Results Estimate repair need and year Bridge with and without isolating membrane NVF Annual Bridge Conference 2015 23.

24 Service life definitions NVF Annual Bridge Conference 2015 24.

25 ASR evaluation NVF Annual Bridge Conference 2015 25.

26 ASR cracks NVF Annual Bridge Conference 2015 26.

27 ASR special inspection NVF Annual Bridge Conference 2015 27.

28 ASR indication NVF Annual Bridge Conference 2015 28.

29 ASR indication NVF Annual Bridge Conference 2015 29.

30 New Considerations Let the elements deteriorate and change it (20 years later) Use better methods to minimize road user costs Better guidelines how to report and describe repair need NVF Annual Bridge Conference 2015 30.

31 NVF Annual Bridge Conference 2015 31.

32 New considerations - New strategies for repair projects Consultants often dramatizes deterioration rate Use Danbro Principal inspections and special inspections inclusive photos may be traced long time back Take photos and describe critical damage better Nothing to obtain by repair now, means it is better to delay Take a critical look at estimated repair and future repair costs before a special inspection is accepted. High variation from consultants to consultant in estimating consequences from: ASR and Chloride impact After our latest findings we need to update our common specifications to evaluate these two areas NVF Annual Bridge Conference 2015 32.

33 Thank You Arne Henriksen


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