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Concrete Anchor

05/28/2008 3:31 AM

Hi Guys!

Just want to ask how to determine what type of anchor would I choose for:

Base plate (for stanchion) above a 25.4mm grout,

with 7/16" bolt holes,

to be installed in concrete,

I was told to choose on the Hilti Catalog but theres a lot of anchors there and I cant

decide which will I choose (I'm in Instumentation not Civil).

Thanks

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#1

Re: Concrete Anchor

05/28/2008 3:47 AM

Hello Optimusprime

Please advise what you intend "anchoring" with that stanchion.

Is it a small boat?

Is it a 1000 foot guywire for a TV transmitting tower?

I see you are in the Philippines, so if the structure is large, advise the wind loading in the intended site location.

Reply here with

Kind Regards....

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#2

Re: Concrete Anchor

05/28/2008 4:22 AM

Stanchion is to be used to support Junction boxes in a Polyethylene plant in Kuwait.

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Guru
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#3
In reply to #2

Re: Concrete Anchor

05/28/2008 4:52 AM

Hello again, Optimusprime

Hilti Contacts for Kuwait:

Local organisation
Works & Building Co
Hilti Division
Shuwaikh
PO Box no. 415
KWT-13005 Safat

Phone+965 844 855 Fax+965 4831379

E-mailhilti@hiltikuwait.com

Customer ServicePhone+965 844 855 Fax+965 4831379

E-mailcs@hiltikuwait.com

OK, those above are the Site end Suppliers for you.

Presumably your base plate has 4 No. Anchors fastened into the base concrete, with adjustable shims/packers to get the fine adjustment correct height of the boxes, then the anchors are bolted up and grouted in the space between the base plate and floor concrete.

You don't advise the weight (mass) of the Junction Boxes, and I have allowed these are not more than 5 Kilograms. (10lbs)

You will thus need for each stanchion the following:

Refer to http://www.hilti.com/holcom/modules/prcat/prca_navigation.jsp?OID=-22918

From that webpage, decide on material of the anchor:

A) Galvanised (electroplated)

B) Stainless Steel

C) Hot Dipped Galvanised

You will better know the actual anti-corrosion level required for these anchors, at the factory in Kuwait.

I have allowed for Galvanised electroplated Anchors, refer subpage: http://www.hilti.com/holcom/modules/prcat/prca_navigation.jsp?OID=-23602

4 No. Hilti HSA M10X90/20/25 00255840

Technical Data

Length identification markE
Material coating/plating/finishGalvanized min. 5┬Ám
Material compositionCarbon steel
Package quantity50
Additional product informationThe indicated load value applies to non-cracked concrete C20/25 for standard anchorage depth, no edge distance and spacing influence.
Anchor length90 mm

Method of installation:

Mark the concrete floor for the position of the stanchion.

Mark the 4 anchor holes.

Temporarily remove the stanchion.

Using electric drill with rotating hammer action, and a suitable rotary impact masonry drill bit, drill 35 mm into the floor concrete at each hole.

Once the 4 holes for the stanchion are drilled, clean up the concrete drilling dust with a vacuum cleaner or small brush/shovel

Replace the stanchion over the 4 holes - line up.

Drop the anchors 1 into each hole - do not yet tighten.

Shim or space stanchion to desired finished level.

Tighten the 4 anchors.

When all stanchions are fixed in position, clean out again under all stanchions, mix up grout, and grout all, nicely per your drawing.

(Your local Kuwaiti installation Contractors should be familiar with the installation of these anchors)

The job is done.

If you need further help, please advise.

Kind Regards....

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#4

Re: Concrete Anchor

05/28/2008 6:35 AM

Thanks!

A big help!!!!

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#5
In reply to #4

Re: Concrete Anchor

05/28/2008 6:37 AM

Hello again, Optimusprime

It's a pleasure to assist you.

Kind Regards from far away....

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#10
In reply to #5

Re: Concrete Anchor

05/31/2008 11:21 AM

Congratulations Sparkstation,

I do believe you are the only member of CR4 who is over 100 (good answere, I mean). Congrats from the lowly masses.

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#6
In reply to #4

Re: Concrete Anchor

05/29/2008 1:42 AM

If you cannot move the staunchion, Hilti and other manufacturers make chemical set anchors, they look like a glass tube with the threaded end coming out one end. You place the glass end in the hole and break teh glass by impact, then mixing the fixing chemicalsby rotating the bold sans nut. You then wait for it to set and tighten the nut. This system has the advantage of filling and sealing any cracks which occurred due to drilling. If you have lots of staunchens Core drilling might be more economical and faster than impact drill. Impact drills are useless if you hit Reinforcing bars. The hole sizes are more accurate with core ( diamond) drilling too - hilti can provide good equipment for this.

I don't trust concreters, I would drill a pilot hole right through the slab to ensure you have the required depth of concrete. We found Sydney airport apron to be a good 9" thinner than spec when we installed new lights some years ago!

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#7
In reply to #6

Re: Concrete Anchor

05/29/2008 9:06 AM

Hilti has a HUV chemical Anchor, im using it here in our project. The anchor should be sized to meet the required loading, in your case a M8 anchor is possible since it is only for stanchion pole installation. Please consider also the compression strength of the concrete since the shear stress between the chemical and the concrete varies with respect to the concrete compressive strength.

The materails data sheet also include the recommended loading base on the anchor size..

Ciao Primo....

Dennis Alipio

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#8
In reply to #7

Re: Concrete Anchor

05/29/2008 1:20 PM

From the description it sounds like there isn't a lot of load on the base plate other than weight. As I recall he said it was to hold junction or control boxes. There shouldn't be a lot of shear load or much of a moment applied to the base plate (moment from pushing on the control box).

It doesn't sound like he needs anything like the epoxy or chemical anchors. To me it sounds like a plain old drop in, beat the head and tighten the nut anchor would be just duckie.

Travis

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#12
In reply to #6

Re: Concrete Anchor

06/01/2008 11:01 PM

This good unit, the mixing chemicals include a mono-plastic cement exerting 3000psi to hold anchor. I use similar for heavy and machine tool mountings.

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#9

Re: Concrete Anchor

05/30/2008 12:56 AM

Hi there,

I would suggest that you look at Mechanical and Chemical Anchors from Ramset Fasteners. They supply to Building /Construction company's world wide

http://www.ramset.com.au

The above website will get you started, all the information you require is on the site plus contacts.

They have an office in Kuwait.

Hope this helps,

Have a good weekend,

Tony

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#11
In reply to #9

Re: Concrete Anchor

06/01/2008 10:58 PM

Ramset anchors are below bar of Hilti anchors

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#13

Re: Concrete Anchor

08/09/2008 6:51 AM

hi guys

please call me at 7835323 for more help regarding selecting anchers i am a employee of hilti kuwait

sameer

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Anonymous Poster (3); ba/ael (1); bwire (2); Optimusprime (2); popoy12345 (1); Sparkstation (3); tony brooks (1)

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