Texas Design Interests, LCC
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Structural Projects

Texas Design Interests, LLC has provided structural engineering services for a wide range of local and national clients. From small additions to grand-scale construction, we offer superior service for every design we produce. Our diverse experience has included the following types of projects:

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Office Buildings
Retail Centers
Multi-Family
Hotels
Industrial Facilities
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Assisted Living
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Government / Military
Specialty Service Centers
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Hotels

Hilton Garden Inn and Conference Center in Lewisville, TX, consists of a 6-story Hotel Tower structure with a 15,950 sf footprint, and total square footage of 95,700 sf, with a 6,400 sf entry Pavilion, and a 22,000 sf Conference Center. Traditional construction of the hotel tower portion typically consists of load-bearing CMU walls, with a Pre-Cast Hollow Core Floor system. Architect Glen Griggs convinced the owner to consider the use of ICF (Insulated Concrete Form) walls in lieu of CMU. The ICF Walls provided an R-Value of 22, reducing the overall energy requirements for the building. Additionally, ICF forms are light and easy to handle, assemble, and store, and reduce construction time and labor costs.

Hilton Garden Inn & Conference Center
Lewisville, Texas

The project site is located in Lewisville, Texas, which is just north of Dallas. Soil conditions in this area of Texas are notorious for their highly expansive potential, often on the order of 4-5 inches, as was the case for this site. This highly expansive soil posed a problem for the foundation design, as the Hilton specifications for their buildings require the foundation design limit foundation movements to a maximum ½”. To achieve this requirement, the geotechnical engineer recommended excavation, or Pressure Injection Treatment of a minimum of 10’-0” of in-situ soils. After several design iterations, TDI proposed a foundation system consisting of Concrete Strip Footings over Void Forms, supported by Piers, with Pre-Cast Hollow Core Floor panels for the Tower portion of the project. This design option eliminated substantial soil removal/rework below the tower footprint. The contractor commented that the foundation for the Tower was the fastest and easiest portion of the project, with the entire Hollow Core floor Panels placed in one day and ICF wall construction beginning the following day.

The final construction documents were issued in April 2006 and the Hotel was open for business in August 2007. The total cost of construction came in at approximately $100/unit, whereas typical similar hotel construction runs $115-120/unit.

Project Data: 6-story tower Hotel with a 15,950 sf footprint, and total square footage of 95,700. Tower construction is Load-Bearing ICF walls, with metal joists and deck floor system. Foundation is Concrete strip footings supported by Piers, with Pre-Cast Hollow Core Panel floor system. 1-story Conference Center with a total square footage of 22,000.
Construction Type: Conference Center construction is Load-Bearing ICF walls for the meeting room at the core, with steel beams, columns, and joists framing the perimeter of the structure. Foundation is Post-Tensioned Concrete Slab-on-Grade.
Architect: Griggs Group, Inc.
Similar Projects: Hilton in Amarillo, TX, Hampton Inn in Mt. Pleasant, TX, Hampton Inn in Arlington, TX, Homewood Suites in Denton, TX, and Hilton Garden Inn in Denison, TX.

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