Robot Structural Analysis

## Robot Structural Analysis

Active Contributor
Posts: 49
Registered: ‎07-26-2011
Message 1 of 20 (557 Views)

# Pile with elastic propreties

557 Views, 19 Replies
07-07-2013 08:18 AM

dear sir
i have to define raft with piles foundation.  i defined raft with th=1000mm kz=1250 Kn/m3 ((according per soil report )
but i dont what value kx.ky .kz for pile 600 mm l=4m
kindly find attached pictures
best regards

Valued Mentor
Posts: 606
Registered: ‎09-07-2011
Message 2 of 20 (528 Views)

# Re: Pile with elastic propreties

07-07-2013 11:49 PM in reply to: rodainnajjar1229
Soil spring defined on a node is the spring constant from your soil report, converted to a kN/m value by using the area of the pile that contacts the soil (either on the pile shaft or on the base).
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Posts: 177
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Message 3 of 20 (520 Views)

# Re: Pile with elastic propreties

07-08-2013 01:19 AM in reply to: tony.ridley

Thanx tony.

You can send  for specific examples.

thax.

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Posts: 6
Registered: ‎04-04-2013
Message 4 of 20 (464 Views)

# Re: Pile with elastic propreties

07-10-2013 11:36 PM in reply to: rodainnajjar1229

Good morning,

For pile foundations I use Elastic ground for bars, to simulate horizontal ground support. See attachment.

You can calculate Ky and Kz according to the theory of menard..

Best regards,

A&IKWANT

Dennis van Dijk

Structural engineer

Best regards,
A&I│KWANT

Dennis van Dijk
Structural engineer
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Message 5 of 20 (435 Views)

# Re: Pile with elastic propreties

07-13-2013 08:35 AM in reply to: Dennisveendam

Thax you.

You can shared theory of menard.

Pleas.................

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Posts: 49
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Message 6 of 20 (415 Views)

# Re: Pile with elastic propreties

07-14-2013 01:04 AM in reply to: Dennisveendam

dear sir

kindly find attached file
best regards

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Message 7 of 20 (402 Views)

# Re: Pile with elastic propreties

07-14-2013 11:19 AM in reply to: Dennisveendam

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Message 8 of 20 (385 Views)

# Re: Pile with elastic propreties

07-15-2013 12:18 AM in reply to: athurD

Good morning,

For kz you can aply the same value as under the raft foundation.

For Ky and Kx you can use the formula according to Menard, see attachment.

I traslate the document from Dutch to English, some words migth not be correct but the formula is the same.

I hope this would help.

Best regards,

A&IKWANT

Dennis van Dijk

Structural engineer

Best regards,
A&I│KWANT

Dennis van Dijk
Structural engineer
Distinguished Contributor
Posts: 177
Registered: ‎12-14-2011
Message 9 of 20 (362 Views)

# Re: Pile with elastic propreties

07-15-2013 05:51 AM in reply to: Dennisveendam

Thax Dennisveendam.

So you can given examples???

Thank you.

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Posts: 6
Registered: ‎04-04-2013
Message 10 of 20 (350 Views)

# Re: Pile with elastic propreties

07-15-2013 06:30 AM in reply to: athurD

Hello,

Attached you find an example of the bridge i made a screenshot of.

In this case there where two pile in one row and i aplleid two different Ky and Kx values because in this case the lower layer was moch stiffer. You can put de Menard formula in a spreadsheet and calculed the Kh value (kh = Ky and Kx)

The only parameter you need is qc from your sonding graff.

Best regards,

A&IKWANT

Dennis van Dijk

Structural engineer

Best regards,
A&I│KWANT

Dennis van Dijk
Structural engineer

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