cold vs. hot rolled piling

[Chewi00]

Contractor is proposing to use cold formed piles in lieu of hot rolled piling that was specified. THis is for a combination bulkhead wall. Looking for general pro's and con's between the two types. My familiarity is soley with hot rolled piling.

THanks in Advance,
Adam

 

[Chewi00]

sorry to follow up, what I do know is that I believe cold formed is more expensive (maybe irrelevant if contractor owns supply), and the interlock strenghts may be limited.

Again....thanks in advance.

 

[dirtydude]

As you suspect, one if the differences is in the interlock design. Hot rolled sheet piles have "thumb" and "finger" or "ball" and "socket" designs whereas a colled rolled section will generally have the ends rolled over. The process by which the steel section is formed also has an affect on the properties of the steel. Here is some literature that describes it rather simply:

http://www.conklinsteel.com/images/SheetPile_All.pdf