Skip to main content

Calibration of AASHTO LRFD Concrete Bridge Design Specifications for Serviceability (2014) / Chapter Skim
Currently Skimming:


Pages 9-13

The Chapter Skim interface presents what we've algorithmically identified as the most significant single chunk of text within every page in the chapter.
Select key terms on the right to highlight them within pages of the chapter.


From page 9...
... 2 SERVICE LIMIT STATES IN CURRENT PRACTICES AND AVAILABLE LITERATURE 2.1 State-of-the-Art Summary Two different approaches were used to collect data on the state-of-the-art of current practices with regard to service limit states. First, a questionnaire was sent to major bridge owners to collect data on current practices and to determine if there are new service limit states that bridge owners desire to be included in the design specifications.
Read the entire page →
From page 10...
... • Fatigue problems in concrete superstructures • Use of coatings in concrete substructures Twenty nine responses to the questionnaire were received and analyzed. The following conclusions were drawn from the responses to the questionnaire: • The majority of bridge owners use the HL-93 loading for service limit states without modifications to the load.
Read the entire page →
From page 11...
... problems are associated more with workmanship and detailing practice more than the design provisions. • All respondents indicated that no damage was observed due to fatigue of reinforcement bars, prestressing steel or concrete.
Read the entire page →
From page 12...
... 2.1.3.2 Load-Driven versus Non-Load-Driven Limit States Difference between load-driven and non-load-driven limit states is basically in the degree of involvement of externally-applied load components in the formulation of the limit state function. In the load-driven limit states, the damage occurs due to accumulated applications of external loads, usually live load (trucks)
Read the entire page →
From page 13...
... 2.1.6 SLSs to be Considered in this Report Potential limit states and possible calibration approaches for service limit states related to concrete structures and some general limit states that are not material-dependent have been reviewed. Some of the potential limit states have since been determined to be uncalibrateable.
Read the entire page →

Key Terms



This material may be derived from roughly machine-read images, and so is provided only to facilitate research.
More information on Chapter Skim is available.