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TingWall Bulletin - 103 |
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TINGWALL IN SCULPTURED CURTAIN WALL
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Introduction
A sculptured curtain wall system is often used on a building with building columns protruding out of the floor slab edge. The exterior wall surface comprises panels wrapping around the columns (column wrappers) and panels between the columns. In most cases, the architect prefers to use protruding panels along the spandrel areas. In the conventional Stick or Unitized system, the following two options are commonly used. The first option is to exclude the column wrappers from the curtain wall system. In this case, field applied silicone caulking along the vertical boundary lines between the curtain wall and the column wrappers are relied on for sealing both air and water. These boundary lines become the major source for water infiltration problem. The second option is to integrate the column wrappers into the curtain wall system. In this case, significant cost increase is incurred in both fabrication and erection. In addition, the inside and outside corners are highly susceptible to damage leading to water leakage problem due to structural movements especially after a seismic event. The design of protruding spandrel panel is also commonly relied on shop or field applied silicone caulking to seal both air and water along the corners. Again, these corners are highly susceptible to water leakage problem especially after a seismic event. Another problem is the difficulty of replacing an individual damaged panel. In summary, there are three major problems of a conventional sculptured curtain wall system as listed below.
(1). High cost.
(2). High susceptibility to water leakage problem especially after a seismic event.
(3). Difficulty of replacing an individual damaged panel.
TingWall™ Solution to the Problems
Recent design development at Ting Wall Inc. has enabled the adaptation of the Airloop Principle in the condition of a sculptured curtain wall design. The simple erection procedures and the complete adaptation of the Airloop Principle ensure the elimination of the three major problems of a conventional sculptured curtain wall system. With reference to the attached drawings (TWB-103.1 to TWB-103.8), the erection procedures are listed below.
1. Install the TingWall mullion anchors before the pouring of concrete slab.
2. Erect the TingWall mullions.
3. Erect the TingWall base starter.
4. Erect any type of panel (column wrapper U-1, spandrel, or vision panel) between two adjacent mullions using the standard TingWall erection procedures.
5. Hang the stone pieces on the U-1 panel right after the erection of each U-1 panel.
6. Hang the U-2 stone unit right after the erection of each spandrel panel.
7. Cap the parapet wall using the standard TingWall erection procedures.
Other facing material such as aluminum plate, ACM, or stainless steel plate can be used for U-1 or U-2 panel. When the metal plate is used for the face of U-1 panel, the standard TingWall hidden frame system can be used without the hanging plate feature. Any other shapes such as circular or trapezoidal profile can be used for U-1 or U-2 panel.
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