Design for serviceability: evaluation and modeling methodologies

A GENERAL DISCUSSION IS PRESENTED OF PAVEMENT PERFORMANCE. APPROACHES TO THE PHILOSOPHY OF PAVEMENT EVALUATION ARE DIVIDED INTO TWO MAJOR PARTS: (1) SERVICEABILITY-PERFORMANCE STUDIES OF FUNCTIONAL BEHAVIOR, AND (2) MECHANISTIC EVALUATION OF STRUCTURAL ADEQUACY. A NEW DIMENSION IS BEING ADDED TO THE NEED FOR PERFORMANCE INFORMATION AS THE APPLICATION OF SYSTEMS ENGINEERING TO PAVEMENT SYSTEMS CONTINUES. AS THE SYSTEMS APPROACH TO PAVEMENT EVALUATION IS DEVELOPED, THE NEED FOR A SYSTEM OUTPUT FUNCTION IS EVIDENT. A DISCUSSION OF THE SURFACE DYNAMICS PROFILOMETER AS A TOOL FOR ESTIMATING A SYSTEM OUTPUT FUNCTION IS INCLUDED, TOGETHER WITH A BRIEF DESCRIPTION OF THE PROFILOMETER SYSTEM AND A SUMMARY OF THE ANALYSIS TECHNIQUES USED ON THE DATA. A SET OF EQUATIONS FOR PREDICTING PAVEMENTS SERVICEABILITY INDEX BASED ON A SMALL PRELIMINARY STUDY IS USED TO DEMONSTRATE THE PROCEDURES INVOLVED IN OBTAINING A MODEL FOR ESTIMATING PAVEMENT SERVICEABILITY INDEX FROM DATA OBTAINED WITH THE SURFACE DYNAMICS PROFILOMETER.

Serviceability (structure)

Pavement Engineering

Source

Cite

Citations (0)

Multilevel Approaches to the Analysis and Synthesis of the Serviceability Performance of a Long Span Suspension Bridge

Civil-comp proceedings (2009)

Franco Bontempi Fabio Giuliano

Serviceability (structure)

Bridge (graph theory)

Suspension

10.4203/ccp.81.7

Cite

Citations (1)

New Serviceability Metrics for Future Design Programs

SAE technical papers on CD-ROM/SAE technical paper series (2001)

Brian L. Torma

Serviceability (structure)

10.4271/2001-01-0607

Cite

Citations (0)

Applications of Field Testing to Bridge Evaluation

Journal of Structural Engineering (1994)

Fred Moses Jean Paul Lebet Rolf Bez

Bridge testing is rapidly becoming a major tool in evaluation. Despite improved structural analysis there are numerous cases in which field testing may be the best way to help ensure future safe performance. The reasons for testing include uncertainties in material and structural modeling and concerns for serviceability limit states. Switzerland has long experience in testing new bridges before allowing them to go into service. The general testing plan, the responses that are modeled, and an example are described. The aim in this paper is to extend these bridge‐testing methods to strength‐evaluation activity. The Swiss approach in testing offers a compromise between a diagnostic performance test and a proof‐loading check on capacity. The level of test loading is normally about 80–85% of the code‐specified serviceability or unfactored load, which is still significantly above the expected lifetime maximum traffic loading. The paper describes in detail a risk model appropriate to modeling the risks during the testing as well as the benefits in higher safety indices gained after the testing. An example is described in the paper.

Serviceability (structure)

Bridge (graph theory)

Test plan

Load testing

10.1061/(asce)0733-9445(1994)120:6(1745)

Cite

Citations (60)

Serviceability assessments of masonry arch bridges

Lufang Wu

Masonry arch bridges continue to play an important role in the UK's transport infrastructure, forming a significant proportion of road, rail and waterway crossings. Many of these bridges are relatively old and are still in service in their original configuration. Increasing vehicle loads and speeds have highlighted the need for reliable estimates of both ultimate and serviceability load levels. Most experimental work and assessment methods have so far been carried out under ultimate load. Only limited work has been undertaken to date on serviceability assessment methods, this project therefore aims to develop a systematic method to assess the serviceability load of masonry bridges under a series of different serviceability criteria. A complex spreadsheet was developed as the main analytical tool for the serviceability assessment and was an encastered elastic analysis based on Castigliano's complementary energy method. The geometric data from a large number of real masonry bridges data was gathered and analysed to develop suitable distribution statistics. Three independent serviceability criteria were then developed based on an attempt to replicate, on average, the existing assessment methods. These three criteria are stress, deflection and cracking depth. Finally, a serviceability assessment method system was fully established within the developed spreadsheet.

Serviceability (structure)

Source

Cite

Citations (2)