A knot is created by beginning with a one-dimensional line segment, wrapping it around itself arbitrarily, and then fusing its two free ends together to form a closed loop. When mathematical topologists consider knots and other entanglements such as links and braids, they describe how the knot is positioned in the space around it, called the ambient space. If the knot can be moved smoothly, without cutting or passing a segment through another, until it coincides with another knot, the two knots are considered equivalent. Wikipedia
The new 300,000sf GHM hotel & condominiums are planned to introduce a very high end of living and hotel services for both the hotel and condominiums. The tower is sited prominently in Philadelphia's city center. The unique form of the Unknot Tower is generated from an innovative analysis of the site’s zoning envelope. By decoding the zoning we proposed the possibility to build the full zoning envelop with ‘a twist’, which allows the developer to build the maximum sq.ft. as well as introduce a new tower shape in Philadelphia’s city center. By intertwining the tower’s form as a knot, a crystalline center void is introduced, around which all public spaces are organized. These hotel amenities such as the lobby, champagne bar, conference center, spa, restaurant, and pool are thus fluidly connected and allow both hotel guests and residents access. The hotel, retail, and residential condos are thus sharing programmatic overlaps, generous services, lifestyle amenities and open outdoor spaces.
We developed an algorithm for the pixilation of stone and glass, as it registers the building’s proximity to the lot line, creating varying quantities of translucencies, as the tower moves obliquely away and towards the lot lines surrounding it. In the same time, the stone and glass curtain wall provides a highly insulated façade, improving the energy efficiency of a typical glass curtain wall while providing passive solar energy. The effect of the slating surfaces is also enhanced by recessed light lines and solar blinds, which are sun-sensor controlled.