A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Deterioration Trends and Structural Performances of Bridge Materials Using Deck Areas
AbstractThis paper demonstrates the analysis of the deterioration trends of the various kinds of bridge-construction materials and/or structural designs. The analysis considers bridge-deck areas, rather than discrete counts, to reveal more relevantly the actual constructed capacity that serves traffic mobility and the extent of necessary resources. The study uses the entire database of the U.S. National Bridge Inventory and derives bridge areas by material. The analysis examines material-deterioration aspects of bridge areas at the serviceability limit states. The distinct trends in the accumulation of structural deficiency versus service life of materials provide measures of their deterioration. To determine the operational structural performances based on the deterioration trends, the study uses the criteria of rate and pattern performances. The overall equivalent structural performance considers a multiple-criteria diagnostic approach integrating the rate and pattern with the condition, durability, and longevity performances. The results provide the most comprehensive national network–level comparative experience of the operational structural performances of bridge materials by areas under the actual circumstances. Analysis of the deterioration trends provides an indication of the typical structural deficiency versus service life expected of bridge materials and helps identify critical accumulation of material deterioration by age for focused improvement efforts. The deterioration trends decrease the equivalent structural performances of most bridge materials by approximately 10%. Overall, the equivalent structural performances of bridge materials by areas are slightly lower than by counts. The maximum average accumulation of structural deficiency of all bridge areas is approximately 20% lower than by counts. The average increase of structural deficiency is 0.42% per year, adding to the already existing 9.38% and constituting an average annual increase of structurally deficient bridge areas by 4.48%. The results provide a more objective indication and comparison of structural performance, help forecast future performance, and improve sustainability of bridge materials.
Deterioration Trends and Structural Performances of Bridge Materials Using Deck Areas
AbstractThis paper demonstrates the analysis of the deterioration trends of the various kinds of bridge-construction materials and/or structural designs. The analysis considers bridge-deck areas, rather than discrete counts, to reveal more relevantly the actual constructed capacity that serves traffic mobility and the extent of necessary resources. The study uses the entire database of the U.S. National Bridge Inventory and derives bridge areas by material. The analysis examines material-deterioration aspects of bridge areas at the serviceability limit states. The distinct trends in the accumulation of structural deficiency versus service life of materials provide measures of their deterioration. To determine the operational structural performances based on the deterioration trends, the study uses the criteria of rate and pattern performances. The overall equivalent structural performance considers a multiple-criteria diagnostic approach integrating the rate and pattern with the condition, durability, and longevity performances. The results provide the most comprehensive national network–level comparative experience of the operational structural performances of bridge materials by areas under the actual circumstances. Analysis of the deterioration trends provides an indication of the typical structural deficiency versus service life expected of bridge materials and helps identify critical accumulation of material deterioration by age for focused improvement efforts. The deterioration trends decrease the equivalent structural performances of most bridge materials by approximately 10%. Overall, the equivalent structural performances of bridge materials by areas are slightly lower than by counts. The maximum average accumulation of structural deficiency of all bridge areas is approximately 20% lower than by counts. The average increase of structural deficiency is 0.42% per year, adding to the already existing 9.38% and constituting an average annual increase of structurally deficient bridge areas by 4.48%. The results provide a more objective indication and comparison of structural performance, help forecast future performance, and improve sustainability of bridge materials.
Deterioration Trends and Structural Performances of Bridge Materials Using Deck Areas
Farhey, Daniel N (author)
2015
Article (Journal)
English
Deterioration Trends and Structural Performances of Bridge Materials Using Deck Areas
| British Library Online Contents | 2015
Deterioration Trends and Structural Performances of Bridge Types Using Deck Areas
| Online Contents | 2016
Deterioration Trends and Structural Performances of Bridge Types Using Deck Areas
| British Library Online Contents | 2016