Private Residence Mulhern + Kulp Project Location: Ocean City, New Jersey Project Start Date: 1 April 2020 Project Completion: 1 February 2022 Project Team: Asher Slaunwhite Architects, D.L. Miner Construction
Project Summary: This modern shore home has several unique design features including a floating stair with mitered steel stringers and cantilevered tread supports and a 28’ wide lift-and-slide door on the third floor. A key component of the lift-and-slide door is the ability to slide the door open with the push of a finger. This required heavy steel headers with maximum deflections of 1/8”. Additional mitered steel ridge beams were required to support hipped-roofs with vaulted ceiling inside. Yet, while there was much steel framing, we were able to maintain a light-framed wood construction system for the majority of the home. The biggest challenge came during construction when subsurface conditions revealed an existing boulder sea-wall buried along the rear of the site and under the intended rear wall and porch. It was discovered as piles were being driven and required a fast redesign. The DEP would not permit piles to be located on the opposite side of the boulder wall, given the proximity to the dunes. Additionally, the home is located on an angled site and to move the home back away from the boulder wall was not going to be an option. After some thought and discussion with the design team, we determined that the best method to achieve the design intent would be to cantilever the grade beams over the boulder wall. Supplemental piles were added as close to the wall as possible to support the increased cantilever reactions, and the grade beams were redesigned to cantilever. The rear 3-story porch was also required to extend past the rear house wall and thus required an additional cantilevered structure. After the grade beam design was sent to the field, we commenced on a redesigned second floor framing system with large cantilevered steel beams to support the porch. Through our redesigned framing system we were able to maintain the intended programming of the project with no loss of space for the client and while protecting the natural dunes on site.
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