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struclurbI <br />109646 <br />February 20, 2013 <br />Kenny Nguyen <br />City of Santa Ana <br />20 Civic Center Plaza <br />Santa Ana, CA 92702 <br />Re: Fiesta Marketplace Parking Structure- PT Inspection and Repair <br />Dear Mr. Nguyen, <br />Thank you for giving Structural Group, Inc. (SG) the opportunity to prepare a repair proposal for the <br />post tension cables at the Fiesta Marketplace Parking structure. The post tension appears to be in <br />good condition with the exception of several exposed tendons in each garage. In order to prepare for <br />larger repair project we propose a plan to investigate the condition of the exposed cable while at the <br />same time providing a solution to the concerns about water penetration and future damage to the <br />cables. hi accordance with this we propose to furnish all necessary labor, material, equipment and <br />supervision except as noted below to perform the following items of work: <br />1. Mobilize to job site <br />1 Layout repair areas 1-5 (as shown in attached photos 1-5). <br />3. Saw-cut approx /2 inch deep around patches. <br />4. Chip-out repair area to expose cables and provide keyway. <br />5. Inspect exposed cables for condition and tension. <br />6. Provide stamped engineers report on cable condition. <br />7. Re-seal damaged tendon sheathing per PTI specification (see image 6). <br />8. Prep concrete surface for topping. <br />9. Install high strength concrete repair material to provide min 1 inch cover for cables. <br />If deemed necessary from inspection of the cables and engineering analysis of the existing capacity of <br />the structure we also propose to re-tension existing broken cables as follows: <br />1. Locate quarter point of cable profile. <br />2. Expose cable at this point. <br />3. Install cable coupler per PTI specifications with splice of new cable length. <br />Structural Group, Inc. • CA Contractor's License #778832 <br />1332 North Miller St. • Anaheim, CA 92606 • Phone: 714.881.9860 • Pax: 714.897.0163 <br />wwwstnxlural,net