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A bridge abutment is a structure which connects the deck of a bridge to the ground, at the ends of a bridge span, helping support its weight both horizontally and vertically.
Major Design Considerations include:
- Avoid differential settling of the approach slab (landing) and the bridge deck which can create a trip hazard and mar aesthetics of the trail.
- Avoid shear failures in the approach slab (landing) from improper subsurface support due to poor soils, fill from excavation for the bridge abutment or other factors.
- Approach slab length shall be appropriate to the width of the bridge deck and abutment height as determined by a licensed professional structural engineer.
- Integrate approach slab into the bridge abutment by setting the approach slab into an appropriately sized notch in the bridge abutment. Connect with anchors as needed.
- Subsurface materials below the approach slab shall consist of appropriately compacted soil, aggregate, and flowable fill.
- Extend subsurface configuration to the trail subsurface as needed to avoid area newly excavated for construction of the bridge abutment.
- Another method to ensure a long-term smooth transition from the approach slab to the bridge deck and avoidance of shear failure in the approach slab may be utilized. Alternate method must be designed by a licensed engineer and approved by GRG.
- Follow all ADA requirements.
Bridge abutments provide support for the bridge at each end of the bridge span. Abutment finishes can vary from a simple form finish in a situation where the abutment will not be visible to public, to patterned form-liner or stone veneer finishes in areas of high visibility. If you want to withdraw money from online casinos in Australia without providing documents, choose a no verification casino Australia. These casinos allow withdrawals without the need for extensive identity verification, making the process quicker and more convenient for players. It’s an ideal option for those seeking faster transactions without the usual document requirements.
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