ENTRY FORM. DVASE 2017 Excellence in Structural Engineering Awards Program

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1 ENTRY FORM DVASE 2017 Excellence in Structural Engineering Awards Program PROJECT CATEGORY (check one): Buildings under $2M Buildings Over $100M Buildings $2M-$10M Other Structures Under $5M Buildings $10M - $30M Other Structures Over $5M Buildings $30M - $100M Single Family Home X Approximate construction cost of facility submitted: Entry Fee: Name of Project: Location of Project: Undisclosed FREE Private Residence Strathmere, NJ Strathmere, New Jersey Date construction was 12/2016 completed (M/Y): Structural Design Firm: Mulhern and Kulp Residential Structural Engineering Affiliation: Architect: General Contractor: All entries must be submitted by DVASE member firms or members. Asher Associates Architects, LLC Winfield Developers Company Logo (insert.jpg in box below) Important Notes: Please.pdf your completed entry form and to bkoroncai@barrpino.com. Please also separately 2-3 of the best.jpg images of your project, for the slide presentation at the May dinner and for the DVASE website. Include a brief (approx. 4 sentences) summary of the project for the DVASE Awards Presentation with this separate .

2 Provide a concise project description in the following box (one page maximum). Include the significant aspects of the project and their relationship to the judging criteria. The architectural features of this 3-story, 4,000 sq. ft., modern home take full advantage of its oceanfront site, ensuring breathtaking views, abundant natural light, and myriad structural challenges. Mulhern+Kulp worked all phases of structural engineering from initial design development through construction administration, including site visits to confirm compliance with the structural construction documents. This residence was constructed with wood, steel, masonry and concrete. Interior spaces were framed with premanufactured floor trusses, while exterior decks were framed with either laminated veneer lumber (LVL) or solid sawn joists. The drive-under foundation was built with CMU piers located on pile caps supported by driven timber piles. Large steel girders spanned long lengths due to the location of the CMU piers. Manufactured wood trusses and LVL filled out the rest of the structural floor system. Glass curtain walls and large glass openings made up the majority of the home s exterior. Given its location on the outer coast of New Jersey, the coastal high wind design forces, FEMA coastal classification, and poor soil conditions presented additional challenges. The structure was classified to be in a V- Zone, which required the foundation be designed to resist wave action, and the effects of soil erosion and scour. Deep foundations consisting of driven timber piles and concrete pile caps were utilized to support masonry piers. The piers were designed to resist the combined effects of lateral and gravity loading, as well as crashing wave and impact loading from floating debris. Many of the shear-transfer details needed to be customized around the novel layout and architectural features at the upper levels. A combination of wood-framed shear walls and steel moment frames were used in resisting the design lateral forces of this home. The majority of the shear walls needed to be located in the interior of the home accommodated by unique shear transfer details and hold-downs. Large glass openings and wide-open floor plans required the use of multiple steel moment frames to resist the lateral forces. Challenging architectural features of this distinctive home required creative structural solutions to provide support within the overall building constraints. Three stories of living space was proposed to be built between the elevated Design Flood Elevation (DFE) and the township restricted overall allowable building height. These parameters resulted in the building having shallow floor systems and supporting structural members to maximize living space height at every level. The second floor plan utilized an exterior folding door system that allows for the living, dining and covered deck areas to be integrated into one wide-open space. This design feature required the elimination of all areas of interior structural support for the floor and roof systems above. To resolve this, a large W14x120 steel girder was designed to span the length of the space in order to reduce the span of the floor system above. The extents of the floor system over the covered decks were designed with steel beams spanning between HSS columns. On the first floor at the front of the home a large covered porch under the second floor provided an additional challenge. The architectural design of the porch allowed for no vertical support elements for the second floor above. For support, three structural steel beams needed to be cantilevered over the covered porch by approximately 8 ft. One steel beam was located over the middle of the covered porch, under the exterior wall above, while the other two framed out the ends. This layout would then allow the framing above to run side to side and frame into the cantilevered steel sections. One final architectural feature of note is the glass stair tower. Used as the means of egress between floors and entryway into the home, the glass stair tower was also a very important structural feature. The tower was built with the use of numerous multi-bay moment frames consisting of HSS columns and steel beams. These elements would be located so the mullions and windows of the glass curtain wall could be installed between bays. Mitered steel channels were used to frame out stairs where unique landings required the look of a floating stairwell.

3 The following 5 pages (maximum) can be used to portray your project to the awards committee through photos, renderings, sketches, plans, etc Architectural rendering of the home looking on from the street Architectural rendering of the home looking on from the beach

4 Construction photo: Side elevation looking at the front covered porch below the cantilevered second floor above Construction photo: Front elevation looking from the street (Note the glass stair tower on the right side of the home) Construction photo: Close-up view of the glass stair tower (Voids between/around the windows are where the steel beams and HSS columns are located for the moment frames) Construction photo: Right Side elevation to view the entire home (street to the left, beach to the right) Structural features in this photo include the cantilevered second floor at the front, the glass stair tower & the roof top deck

5 Typical detail of a moment frame at the bottom connected to the top of the CMU pier (transfer of lateral loads from moment frame to pier) Close-up look at the detail for the roof top deck at the back right corner of the home where the steel beam needed to be connected to the HSS columns to cantilever out and support the extent of the roof top deck above (similar condition at covered porch for the level below) Above: Elevation rendering of the steel moment frame at the glass stair tower Left: Elevations renderings of the various other steel moment frames located in the home

6 Comparison of the architectural plans vs. the structural plans of the the living, dining and rear covered porch spaces (Note: the large W14x120 girder (in red) spanning the open floor plan)

7 Cant d Beams Beam Support 8 Cant d Structural plan showing the cantilevered condition at the front of the home over the covered porch (Note the cantilevered steel beams in red and their support below in blue) Above: Structural details 36 & 37 Left: Structural detail 43

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