Project Blog type — Madsen Consulting Engineering

205 Smith Street,
Brooklyn, NY

A luxury transformation for The Related Companies. A 1-story landmarked garage in Tribeca was gut remodeled to become the gorgeous new sales office for the 70 Vestry  Condominium housing. Successfully addressed vapor removal, aging brick walls, and an arthritic roof to convert the property back towards it's original design while creating a luxurious new interior space. A luxury transformation for The Related Companies. A 1-story landmarked garage in Tribeca was gut remodeled to become the gorgeous new sales office for the 70 Vestry  Condominium housing. Successfully addressed vapor removal, aging brick walls, 

A 1-story landmarked garage in Tribeca was gut remodeled to become the gorgeous new sales office for the 70 Vestry  Condominium housing. Successfully addressed vapor removal, aging brick walls, and an arthritic roof to convert the property back towards it's original design while creating a luxurious new interior space.

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205 Smith Street, Brooklyn, NY

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Architect: Think! Architecture and Design, Marty Kapell
Client: Ken Hart, H&H Builders

This two-story plus cellar and roof, 40,000sf commercial building, contains a structural system of steel framing with composite floors (metal deck and concrete). The foundation is piles/reinforced concrete footings. Existing floors and a number of masonry bearing walls were removed, and new floors were designed. Two of the exterior existing masonry walls were partially preserved, and connected to the new structure. The design had to comply with the requirements and it was subject for approval by NY Metropolitan Transit Authority (MTA).

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123-125 W 69th Street, New York, NY

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Architect: Gil Even-Tsur, Architecture Worksop

This projected consisted of conversion, extension and renovation of two adjacent Landmarked brownstones in the Upper West Side of Manhattan. Reframing on all the floors was required for new stairs and openings. The new openings were created in the party wall between the two buildings and the entire rear wall was removed and replaced with a steel frame. The existing rear extension of the building was rebuilt using steel framing for glass wall support; also, the existing roof structure was removed and replaced in order to host an occupied terrace and to support a new glass enclosed penthouse. 

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76 N 6th Street, Brooklyn, NY

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Architect: TLZ Architecture DPC
Developer: Kevin Dolan

This 5-story, 27,000 sf. residential/commercial building, includes a structural system of steel framing, and composite floors (metal deck and concrete). The foundation is reinforced concrete footings. Special design was required to accommodate a 30-foot high open commercial space on the first floor; the columns in the residential higher floors were transferred on 5-foot high trusses below second floor.

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Victoria's Secret, 447 86th Street, New York, NY

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Architect: SRA Architects
Client: H&H Builders

A conversion of two existing buildings (4 story, total area 30,000sf) into one commercial space for Victoria’s Secret. The structural floor system includes Dragonboard flooring on light gauge joists supported by steel beams columns and new/existing masonry bearing walls. The foundation is reinforced concrete footings. Existing floors and a number of masonry bearing walls were removed, and new floors were designed. Two of the exterior existing masonry walls were partially preserved, and connected to the new structure. Also, new CMU bearing walls were introduced and connected to the new steel structure, and a new lateral system was designed for the building. 

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440 Van Brunt Street, Brooklyn, NY

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Architect: Thread Collective
Client: Michael Densen

A renovation and adaptive reuse of an existing 3-story commercial building in Red Hook, Brooklyn. The building will accommodate a single family residence and commercial spaces. The existing structural system consists of steel beams and columns that carry composite concrete and metal deck floors. The columns are supported by spread footings. The major proposed alterations to the structure include new balconies and cantilevered spaces, a new swimming pool on the east edge of the roof, altering the level of the 1st floor. The structure had to be reviewed for wet-proofing and buoyancy due to flooding; also the lateral system had to be altered due to changes in floor framing and additional loads. 

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305 2nd Street/238 4th Avenue, Brooklyn, NY

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Owner: Garden Estates LLC

There four, one story, commercial warehouses, 50,000sf total, in this project. The structural system is wood joists supported by wood bowstring trusses bearing on brick walls, and the foundation is reinforced concrete footings. Rehabilitation was required of this large area warehouse, that spans over one block along 4th Avenue in Brooklyn, after a partial collapse. Special design of deformed and out of plane trusses and lateral bracing were required in order to restore the rigidity of the roof system; new posts were introduced in order to reduce the span for the trusses and special braces were designed for the bearing walls.

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1040 Flatbush Avenue, Brooklyn, NY

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Architect: Workshop DA

This was a conversion of four existing commercial buildings (4 story, total 40,000sf) into one mixed use space - gymnasium and commercial. The structural system includes steel framing, composite floors (metal deck and concrete), and on the first floor - existing wood joists, metal deck and concrete slab. The foundation is reinforced concrete footings. Upper floors and masonry party walls were removed, and new floors were designed. The exterior existing masonry walls were kept and connected to the new steel structure, while the first floor wood framing was preserved. A new lateral system was designed for the building. 

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Delta Marine Terminal (LaGuardia Int'l Airport), Flushing, NY

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Architect: RCGA Architects
Client: Delta Airlines

The structural system of this terminal consists of steel framing, composite floors (metal deck and concrete) and CMU bearing/shear wall. Renovation of the existing terminal included structural floor upgrades at the Security Checkpoint, in order to install new Transportation Security Administration (TSA) Equipment. The existing floor structural system is plywood flooring on cold formed steel framing, supported by steel beams on concrete piers and isolated footings. The design had to comply with the special requirements and it was subject for approval by the Port Authority of NY and NJ. Work included extensive data collection and evaluation of existing field conditions, design of a new floor system to support the new loads imposed by TSA equipment, and site inspections.