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Re: Bridge Terminology

[Subject Prev][Subject Next][Thread Prev][Thread Next] What you are describing is a pile bent: piles connected only by a bent cap. Usually used for shorter spans and where aesthetics are not a concern (creek crossings, railroad crossings, etc.).

A pier consists of piles connected by a pile cap, which supports a column, which supports a pier cap. The beams (or girders) bear on the pier cap. Usually used for longer spans and where aesthetics are important. There are several different types of piers, including single column, multi-column, and hammerhead - for multi-colum piers you may have a pile cap for each column or a single pile cap for all of the columns.. Depending upon whether the bridge is over land or over water, the pile cap may be located below grade, at the water line, or at the mudline. Drilled shafts are sometimes used in lieu of the piles.

HTH,

David Finley


----- Original Message ----- From: "Rand Holtham, P.E." <rand(--nospam--at)sigmaengineers.com>
To: <seaint(--nospam--at)seaint.org>
Sent: Thursday, April 14, 2005 3:29 PM
Subject: Re: Bridge Terminology


On a timber bridge would you call the member that spans across the individual piles in the bent a "pile cap"?


----- Original Message ----- From: "Candi Anderson" <canderson(--nospam--at)mercadoeng.com>
To: <seaint(--nospam--at)seaint.org>
Sent: Thursday, April 14, 2005 1:53 PM
Subject: RE: Bridge Terminology


The stringers run parallel to the roadway and rest on or frame into
floorbeams at the piers.  Otherwise, they might have a bearing at the
pier cap

-----Original Message-----
From: Rand Holtham, P.E. [mailto:rand(--nospam--at)sigmaengineers.com]
Sent: Thursday, April 14, 2005 2:59 PM
To: seaint(--nospam--at)seaint.org
Subject: Bridge Terminology

Listers,

What is common terminology (for bridges) for the girder beams that
support
the deck beams(?) (running parallel to the roadway) and rest directly on
top
of the piles. What is the aforementioned deck beam(floor beam/joist)
typically called?


Just curious,
Rand



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