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Abutment

 

Abutment

Cream-colored concrete abutment gives vertical support to the small red rail bridge, and to the earthen fill of the bridge approach embankment
Kurobe Dam rests on artificial concrete abutments
Abutment for a large steel arch bridge

In Kurobe Dam in Japan.[1][3]

The term may also refer to the structure supporting one side of an arch,[4] or masonry used to resist the lateral forces of a vault.[5] The word derives from the verb "abut", meaning to "touch by means of a mutual border".

Contents

  • Use of abutments in engineering 1
  • Types of abutments 2
  • References 3
  • External links 4

Use of abutments in engineering

An abutment may be used for the following:

  • To transfer loads from a superstructure to its foundation elements.
  • To resist and/or transfer self weight, lateral loads (such as the earth pressure) and wind loads.
  • To support one end of an approach slab.

Types of abutments

There are different types of abutments including:

  • Gravity Abutment, resists horizontal earth pressure with its own dead weight
  • U Abutment, U shaped gravity abutment
  • Cantilever Abutment, Cantilever retaining wall designed for large vertical loads
  • Full Height Abutment, Cantilever abutment that extends from the underpass grade line to the grade line of the overpass roadway
  • Stub Abutment, Short abutments at the top of an embankment or slope. Usually supported on piles
  • Semi-Stub Abutment, Size between full height and stub abutment
  • Counterfort Abutment, Similar to counterfort retaining walls
  • Spill-through Abutment, Vertical buttresses with open spaces between them
  • MSE systems,“Reinforced earth” system: modular units with metallic reinforcement
  • Pile Bent abutment, Similar to Spill-through Abutment

References

  1. ^ a b """Glossary - "Abutment. U.S. Bureu of Reclamation. Retrieved 24 January 2015. 
  2. ^ Abbett, Robert W. (1957). American Civil Engineering Practice III. New York: John Wiley & Sons. pp. 26–22&26–32. 
  3. ^ "関西電力 黒部川第四発電所 (Kurobe Kansaidenryoku Fourth plant)" (in Japanese). Suiryoku.com. Retrieved 24 January 2015. 
  4. ^ Beall, Christine (1987). Masonry Design and Detailing for Architects, Engineers and Builders. McGraw-Hill. p. 449.  
  5. ^ Pevsner, N. (1970) Cornwall; 2nd ed. Harmondsworth: Penguin; p. 245

External links

  • Ohio Department of Transportation
  • Fixed Bridge Abutments
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