Building Enclosure in Hong Kong

16. The New KCRC Station

Plate 16.1 View of the wave roo f unde r construction . THE NEW KCRC STATION Architectural Firm: Foster Asia (Hong Kong) Ltd. GENERAL This is a case study of the extension of the existing Hung Horn terminu s o f th e Kowloo n an d Canto n Railway , which take s th e for m o f a simpl e rectangula r glas s pavilion that gives lightness and openness . LOCATION This sit e is on th e roo f dec k o f th e railwa y station ; a lightweight pavilio n structur e o f stee l an d glas s i s therefore a suitable solution. The pavilion is supported by steel columns that distribute the structural load to a steel raft o n the existing deck . ENCLOSURE The enclosure aims to create a spacious, generous an d well-lit interio r b y means o f simplicit y o f layout . Th e rectangular layou t i s denoted b y peripheral column s supporting stee l torsion 'spire ' beams which then hol d the steel wave beams with profile d meta l decking . The wave roof i s used t o incorporat e skylight s a s natural lighting . By using full-height glas s walls, much energy require d fo r lightin g ca n b e reduced . T o supplement the skylight, artificial lights are incorporated to contro l th e ligh t intensit y insid e the pavilion . Th e wave roof also forms deep eaves to shade excessive solar heat from th e pavilion . The steel wave roof i s finished wit h metal deckin g and dense rigid mineral wool for insulation. The uppe r surface is finished with PVC waterproof membrane . The ceiling i s constructed o f perforate d stee l infil l panel s and eave s completed wit h aluminium panels . The glas s wall s ar e independen t o f th e pavilio n structure and stand on a structural grid of 3 m with a n infill pane l module o f 3 m x 1.2 2 m . Clear toughene d glass is used. COMMENTS A simple , ope n desig n i s alway s effectiv e fo r larg e buildings intende d fo r movemen t o f people . Bot h aesthetic and environmental aspect s of design are dealt with by the use of the simple wave roof i n this pavilion building. 173 Building Enclosur e i n Hon g Kon g Drawing by courtesy of Foster Asia NORTH-SOUTH SECTION Plate 16.2 Diagram o f the design concept showing lightin g contro l o f the concourse. CAD by courtesy of Foster Asia Architect: Foster Asia (Hong Kong) Ltd. Project Location : Cheong Wan Road, Kowloon Station , Kowloo n Materials for Enclosure : Steel column s + beam s supporting stee l deck s completed wit h minera l wool insulation + PVC finish, glass wall s o f stee l frame s and clear toughened glass . Completion: Under construction i n 1997, scheduled completio n i n 1998 Plate 16.3 CAD of the exterior view of the pavillion. 174 Photo by courtesy of Foster Asia Plate 16. 4 Aerial view of the model showing the wave roof . Photo by courtesy of Foster Asia Plate 16.5 View of the mode l showing the interior an d the roo f o f the pavilion . Building Enclosur e i n Hon g Kon g trftijiFii ,=} , wH - * ' 1 iL « r> ,. iff} f ^ j I Plate 16. 6 View of the glass pavilion unde r construction . 176 The Ne w KCR C Statio n 177 Building Enclosur e i n Hon g Kon g Plate 16. 7 Construction o f the glass wall an d wave roo f — the glazing i s set as an independent enclosur e from the columns supportin g th e wave roof . 178 The Ne w KCR C Statio n Plate 16.8 View of the external glazin g unde r construction . Plate 16.9 View of the wave roo f with roo f light s and metal decking unde r construction. 179 Building Enclosur e i n Hon g Kon g Plate 16.1 0 View of the...