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STEEL BRIDGE BEARING SELECTION GUIDE by Charles W. Roeder, Ph.D., P.E., and John F. Stanton, Ph.D., P.E. University of Washington SELECTION OF BEARINGS FOR STEEL BRIDGES This Selection Guide facilitates the process of selecting cost-effective and appropriate bearing systems for steel girder bridges.
Plain elastomeric bearing pads (PEP) rely upon friction at the contact surfaces to resist bulging. Local slip resulting from friction loss leads to increased strain, thus limiting the load carrying capacity of the bearing.
1 Ιουν 2023 · An elastomeric bearing pad plays a crucial role in bridge safety, dependability, and longevity. Read how simulation helps.
LASTO-BLOCK elastomeric bearings are suitable for use in structures which require the transfer of low to medium loads. Equipped with a sliding surface the structural bearings can be particularly useful in providing temporary support during the moving of large loads and for the bridge deck incremental launch method.
The purpose of this guide is to present steel bridge bearing details that are cost effective, functional, and durable. Three major types of bridge bearings are presented. 1. Elastomeric bearings The details are for steel reinforced elastomeric pads; however, much of the content is directly
Elastomeric bearings allow transfer of vertical loads, horizontal movement, and structural rotation. They are valued for their durability, reliability, low maintenance requirements, and low cost. Because elastomeric bearing pads are crucial for safe and cost-effective concrete bridge design, we posed questions about them to the experts.
Laminated bearings consist of elastomer material vulcanized to layers of unexposed steel shims. These bearing pads allow for more rotation and movement capabilities than plain bearing pads.
