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foundations for bridges and bridge superstructure viz., Piers, abutments, wing walls, bed blocks and ballast walls / dirt walls. A section is included at end to cover water supply wells and tube wells. 19.1.2 Types of Foundations Bridge foundations can be of i) Open or Shallow Foundations
Cantilever walls are generally adopted up to a nominal height of 6 metres. When the nominal height exceeds 6 metres, counterfort or buttress type walls are used. Tied-back walls may be used for high walls. These walls are specially suitable in cases where walls on both the sides are to be provided.
Sep 10, 2021 · In this video we Will discuss about bridge dirt wall and bracket. ...more.
Jan 11, 2019 · Explanation of return wall, fly-wing, retaining wall, toe wall, RE wall and dirt wall.
Dec 3, 1997 · Bridge is a structure having a total length of above 6 metres between the inner faces of the dirt walls for carrying traffic or other moving loads over a depression or obstruction such as channel, road or railway.
Sep 6, 2022 · The main purpose of wing walls on an abutment is to contain backfill material behind the abutment wall and minimize carriageway settlement. High lateral earth pressures could result from the containment and compaction of backfill materials. Wingwalls can be found in abutments of bridges and and end of culverts.
Bridge abutments can be of various configurations such as spill-through type and non-spill-through type with solid wall, counter-fort wall, box type or bank seat type. Bridge Superstructure The superstructure can be of various types as given in Clause 102.3 of the code.
Sep 2, 2022 · As a part of the bridge, the abutment connects the bridge to the approach roadway, gives the bridge superstructure vertical support at the bridge ends, and retains the roadway earth materials from the bridge spans. Typically, bridges are built as part of a railway or road highway project.
Jan 28, 2020 · Traction, braking and skidding loads at the rear of the abutment are not required to be considered when using EN 1991-2:2003 (see clause 4.9.2). The curtain wall (also called upstand wall or ballast wall) does however need to be designed for braking forces.
This section provides design guidance and construction requirements for abutments, piers, and retaining walls. Abutments and piers support bridge superstructures, whereas retaining walls function primarily as earth retaining structures but can serve a dual purpose as an abutment.
