Continue to Site

Eng-Tips is the largest engineering community on the Internet

Intelligent Work Forums for Engineering Professionals

  • Congratulations GregLocock on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

pile foundations

Status
Not open for further replies.

visitor

New member
Mar 28, 2002
117
I have to design the piles for supporting the bridge which is crossing a small stretch of water. The piles are partly embedded in water and then in soil. There is a pile cap connecting these piles above water level
( 3 nos piles in one plane). The bridge girders are directly resting on the pile cap.

The reactions ( Vertical and horizontal) from the girders are transferred to the pilecap.

Hecne the piles are subjected to vertical loads and horizontal loads at pile cap level. The piles are connected by a pilecap in one direction only and in the other direction it will be a cantilever. Can we assume the pile head as “ fixed “ ?

If we assume this as “fixed head", how to design the pile ? Based on soil properties, the embedment depth required will be more than 4 time T. So , this will be a long pile.

The charts given in “Pile design and construction practice – by Tomlinson “ for fixed pile head are for lateral loads at ground level only. How to design the pile for the externally applied moment and horizontal loads applied at higher level ?

It is a general opinion that the long piles are governed by the structural capacity of the pile. Does it mean that the soil can take any amount of load ? Please give suggestions.

 
Replies continue below

Recommended for you

Status
Not open for further replies.

Part and Inventory Search

Sponsor