[Dsg-rich] Information on RICH assembly structure anchoring

[Tyler Lemon]

Hello Dario and Sandro, 
Thank you for proving the information needed for the RICH assembly tasks. 

Bob, Doug, and Denny, 
Below is additional information from Dario and Sandro on the layout of EEL 124 and the anchoring bolts needed for the upcoming RICH assembly tasks. 

In summary, we will be using sixteen, 3/4-inch, drop-in Hilti anchors with 8-inch long, 3/4-inch diameter threaded rods to anchor the RICH assembly to the clean room floor (link to the Hilti bolt anchors below). Does Hall B Engineering have any of these Hilti anchors on hand or the tools required to drill the anchor holes? 

https://www.us.hilti.com/anchor-systems/flush-anchors/336429 

Also, attached for reference is a layout of EEL 124 with the RICH assembly structure and also a document detailing the anchor bolts system. 

Best regards, 
Tyler 

From: "Dario Orecchini" <dario.orecchini at gmail.com> 
To: "Tyler Lemon" <tlemon at jlab.org>, "Tomassini Sandro" <sandro.tomassini at lnf.infn.it>, "Mirazita Marco" <marco.mirazita at lnf.infn.it>, "dsg-rich" <dsg-rich at jlab.org> 
Sent: Tuesday, February 7, 2017 10:35:23 AM 
Subject: Re: [Dsg-rich] Questions and confirmations regarding RICH assembly anchoring 

Hi Tyler, 
following the required information. 


1. In October 2016 (email below in blue), Sandro noted that the assembly structure would need 3/4 inch Hilti bolt anchors. Have the Hilti bolts been included in the crates that arrived at JLab in January? 

No, they aren’t included in the crates. 

2. Could you confirm that 3/4 inch diameter bolts will be used to anchor the assembly structure? 

Yes, we confirm the ¾ inch diamenter bolts. 

The anchor bolts system details are shown in the document: SMC TA-STR-001.pdf. 

I send it in attachement. 

It consist of two components: 

- 1) DROP-IN ANCHOR HDI ¾” https://www.us.hilti.com/anchor-systems/flush-anchors/336429 , 

- 2) THREADED ROD 8” in lenght (Steel grade A). 

In addition I send you the file: “Anchoring Template Layout In EEL124_Top View”with: 

- the position of the drilling template; 

- The view of the drilling template assembled; 

- The typical section of the anchoring system. 

3. Could the drilling to anchor the assembly structure occur prior to INFN collaborator arrival at JLab? DSG could assemble the drilling template and arrange the anchor holes drilling for the week of February 27 as the blind drilling permit is valid starting February 27, 2017. 

Yes, you can procede about the realization of the drilling. 

4. In October 2016, a CAD model containing the EEL124 layout for RICH assembly was shared with the DSG. Attached is a top view of the model with dimensions measured in inches. Could you confirm that this is the correct layout for RICH assembly? 

To avoid any misunderstanding see the file: “Anchoring Template Layout In EEL124_Top View 

As you prefer, we can arrange a meeting (Skype or Blue Jeans) to clarify any doubts. 

Best regards 

Dario & Sandro 

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