Steel Bridge Bearing Design and

Detailing Guidelines








AASHTO/NSBA Steel Bridge Colloboration


Steel Bridge Bearing Design and Detailing Guidelines Table of Contents
Section 1: Elastomeric Bearings ........................................................................... 1

1.1 General................................................................................................................ 1

1.2 Reference Documents ....................................................................................... 1

1.3 Basic Assumptions.............................................................................................. 1

1.4 Design and Detailing Recommendations........................................................... 2

1.4.1 Design .......................................................................................................... 2

1.4.2 Sole Plate Connections ............................................................................... 3

1.4.3 Sole Plate Details ........................................................................................ 3

1.4.4 Bearing to Girder Connection....................................................................... 4

1.4.5 Masonry Plate and Anchor Rods ................................................................. 4

1.4.6 Elastomeric Bearings with Sliding Surfaces.................................................. 5

1.5 Marking................................................................................................................. 6

1.6 Drawing Details ................................................................................................... 6

Section 2: High Load Multi-Rotational Bearings ................................................... 19

2.1 General.................................................................................................................. 19

2.2 Reference Documents .......................................................................................... 19

2.3 Basic Assumptions................................................................................................. 20

2.3.1 Approach......................................................................................................... 20

2.3.2 Recommended Bearing Types ....................................................................... 20

2.4 Design and Detailing Recommendations............................................................... 20

2.4.1 Design ............................................................................................................. 20

2.4.2 Specifications................................................................................................... 21

2.4.3 Sole Plate Connection..................................................................................... 21

2.4.4 Sole Plate Details ........................................................................................... 22

2.4.5 Future Maintenance ........................................................................................ 22

2.4.6 Masonry Plate and Anchor Rods .................................................................... 22

2.4.7 Manufacture ..................................................................................................... 23

2.5 Marking.................................................................................................................... 23

2.6 Drawing Details ...................................................................................................... 24

Section 3: Steel Bearings ........................................................................................... 35

3.1 General.................................................................................................................... 35

3.2 Reference Documents ............................................................................................ 35

3.3 Basic Assumptions.................................................................................................. 35

3.4 Design and Detailing Recommendations................................................................ 35

3.4.1 Design .............................................................................................................. 35

3.4.2 Sole Plate Connections ................................................................................... 36

3.4.3 Sole Plate Details ............................................................................................ 36

3.4.4 Bearing to Girder Connection........................................................................... 36

3.4.5 Masonry Plate and Anchor Rods ..................................................................... 37

3.5 Marking..................................................................................................................... 37

Appendix A: Recommendations for Beam Rotation Calculations ............................. 39

Appendix B: Recommendations for Thermal Movement Calculations....................... 41





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