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From page 1...
... 1Executive Summary The objectives of SHRP 2 Project R19B were to develop design and detailing guidance and calibrated service limit states (SLSs) to provide 100-year bridge life and to develop a framework for further development of calibrated SLSs.
From page 2...
... 2exceeding SLSs are an order, or even several orders, of magnitude smaller than those associated with ULSs. Thus, an acceptable probability of exceeding an SLS is much higher than for a ULS.
From page 3...
... 3Owners who make exceptions to some of the AASHTO LRFD requirements will have to evaluate the findings of this research and decide their jurisdiction-specific requirements. The effect of the proposed specifications revisions on specific types of components will be debated by AASHTO's technical committees and HSCOBS when the revisions are considered.

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