McLaren Engineering Group provided structural engineering services for this luxury mixed-use building constructed on a former parking lot, at the corner of 19th and Arch Streets in Philadelphia’s Logan Square. The 330,000 square foot, three-tiered building is comprised of a six-story and 14-story element, connected by a 12-story tower. With 248 residential units and 8,000 square feet of retail space, this cutting-edge urban property boasts an ultramodern metal-clad panel system, green roof and underground parking garage — providing Philadelphia professionals world-class amenities near some of the city’s best resources.
McLaren was brought into this project well after the design development phase was underway. Pulling from the firm’s extensive experience, McLaren performed a significant structural redesign without threatening the architectural aesthetic of the structure by using a pre-engineered, pre-fabricated light gage wall and floor panel system. This innovative design expedited permitting, required a shorter construction time and stayed within budget.
McLaren raised the lowest level of parking garage 5.5 feet, bringing the floor and foundation out of the rock. The parking garage flooring design, combined with a more efficient ramp system, was another time and money saving design.
McLaren also prepared construction documents for the excavation and foundation wall system, two interior courtyards, an extensive green roof – as well as a budget-friendly pre-engineered, pre-fabricated light gage metal wall and floor panel system. McLaren prepared the fabrication drawings for the light gage load-bearing wall panels, with the thickest light gage steel member bearing a little thicker than 1/16th of an inch.
1900 Arch Street has showcased the strength capacity of light gage metal in a high-rise development. It is one of North America’s tallest pre-fabricated metal load-bearing wall panel projects.