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Chapter 12 Abutments - Wisconsin Department of …

Table of Contents 12.1 General ... If both abutments are connected by fixed bearings to the superstructure (as in ... rigid frames), the abutment wings are joined to the body by a mortised expansion joint. For a non-skewed abutment, this enables the body to rotate abous for t its base and allow superstructure contraction and expansion due to ...

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