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  1. wing wall
  2. curtain wall
  3. abutment
  4. pier
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1 Answers

Option 3 : abutment

Explanation:

Pier:

  • It is a vertical load-bearing member such as an intermediate support for adjacent ends of two bridge spans.
  • R.C.C. piers of the following shapes are used:
    • Rectangular
    • Dumb-bell type
    • Trestle bent
  • The piers of the following cross-section are used:
    • rectangular
    • with triangular edges towards upstream and downstream sides
    • with curved faces on upstream and downstream sides

[ alt="F1 Shraddha Chandra 22.02.22 D2" src="https://storage.googleapis.com/tb-img/production/22/02/F1_Shraddha_Chandra_22.02.22_D2.png" style="width: 466px; height: 244px;">

Figure: Bridge elements

Abutment:

  • A masonry or reinforced concrete wall that constitutes the end support of bridges or similar structures by which it joins the bank of the waterway is called an abutment.

A wing wall

  • It is a structural member located at the end of a bridge structure. When it is constructed integrally with the abutment, it is termed a cantilever wing wall and when separated from the abutment with expansion or construction joint, it is called an independent wing wall.
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