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11233 ADVANCE ARCHITECTURAL CONSTRUCTIONPRECEDENT STUDY - CCTV BEIJING, OMA
ELEANOR TULLOCK [10840686] | REINAH URQUEZA [10833945] | JEAH LOONG YEOH [10828174]
3mx3m High Density Vertical Structure
CCTV Beijing CCTV Beijing: 6mx6m Base Structure CCTV Beijing: 12mx12m Diagrid Structure CCTV Beijing: Stress Distribution Structure CCTV Beijing: Combined Structure
6mx6m High Density Diagrid Structure
High Density Stress Distribution Structure
High Density Stress Distribution Structure
High Density Combined Structure
12mx12m Low Density Vertical Structure
CCTV Beijing
FINAL DESIGN
24mx24m Low Density Diagrid Structure
Low Density Stress Distribution Structure
Low Density Stress Distribution Structure
FINAL GRID SYSTEM:Combination of 12mx12m low density vertical structure and high density stress distribution structure system
Low Density Combined Structure
PARAMETRIC DIAGRAMS
CCTV Beijing Topography Change:5 Degree Slope
Topography: Building on a Slope
Building Transformation:Angle of towers changed to �ttopograhy
Geometry: Stretch Y-axis Geometry: Stretch X-axisGeometry: Flip Horizontal AxisGeometry: RotateGeometry: Sheering on Y-axis Geometry: Extend Overhang
Topography: Building on a Cli� Topography: Building on a Mountain
96105
96 95
Building Transformation:Change of volume (bigger/heavierat the base, thinner/lighter at the top) to stabalize building
Grid System:Combination of 12mx12m low densityvertical structure and high densitystress distribution structure system
Location:- on the cli� of the Domain, facing Sydney Harbour- using the building to frame the Sydney Opera House and the harbour
10595
5
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11233 ADVANCE ARCHITECTURAL CONSTRUCTIONPRECEDENT STUDY - CCTV BEIJING, OMA
ELEANOR TULLOCK [10840686] | REINAH URQUEZA [10833945] | JEAH LOONG YEOH [10828174]
EXPLODED FACADE SYSTEM
FACADE SECTION DETAIL [1:20]
Slabs
Reinforcement Layer:Additional Orthogonal Steel Structure
Fist Layer:Main Steel Structure with Reinforcement
Second Layer:Diagrid Steel Structure
Vertical Structure
Third Layer:Diagrid Steel Structure
Inner Glass Facade
Facade Grid Structure
Outer Glass Facade
Last Layer:Outer Steel Structure with Reinfoarcement as the First Layer
16mm air space
Extruded Aluminum closer plateby cladding contractor
Extruded aluminum snap on coverto glazing frame �xing screws tomatch surrounding cladding frames
Double glazed, double laminatedthermally broken, fully panelised,utilised, drained pressure equalisedfactory assembled cladding system onpainted mild steel cladding supportstructure, all my cladding contractor.
System to accomodateall tolerances and movements
Continuous vertical stainless steelinsert to aluminum facade
16mm air space
Double glazed, double laminatedthermally broken, fully panelised,utilised, drained pressure equalisedfactory assembled cladding system onpainted mild steel cladding supportstructure, all my cladding contractor.
System to accomodateall tolerances and movements
11233 ADVANCE ARCHITECTURAL CONSTRUCTIONPRECEDENT STUDY - CCTV BEIJING, OMA
ELEANOR TULLOCK [10840686] | REINAH URQUEZA [10833945] | JEAH LOONG YEOH [10828174]
PARAMETRIC VARIATION: EXPLODED AXONOMETRIC
ELEANOR TULLOCK [10840686] | REINAH URQUEZA [10833945] | JEAH LOONG YEOH [10828174]
11233 ADVANCE ARCHITECTURAL CONSTRUCTIONPRECEDENT STUDY - CCTV BEIJING, OMA
PERSPECTIVES
ELEANOR TULLOCK [10840686] | REINAH URQUEZA [10833945] | JEAH LOONG YEOH [10828174]
11233 ADVANCE ARCHITECTURAL CONSTRUCTIONPRECEDENT STUDY - CCTV BEIJING, OMA
PARAMETRIC VARIATION: WINDOWS SECTION DETAIL [1:5]
Thermal Break
Glazing TapeGlazing Rubber
Glazing Stop
Body
ELEANOR TULLOCK [10840686] | REINAH URQUEZA [10833945] | JEAH LOONG YEOH [10828174]
11233 ADVANCE ARCHITECTURAL CONSTRUCTIONPRECEDENT STUDY - CCTV BEIJING, OMA
CCTV BEIJING: EXPLODED AXONOMETRIC
Floor levels - from 3 below ground to 55 from ground level. Theseact as an internal sti�ening diaphram, working with outher internalstructural elementsto counter gravitational pull. In particular they prevent overturningin seismic conditions.
Denser Red grids on the outer diagrid structure are the areas which recieve the most stress, and thence are more compressed than other areas. Overstressed areas are doubled or quadrupled in density.Similarly the larger spacings indicate areas of less stress, hence the structure is economically thinned to avoid material waste and over-engineering. Nevertheless every diagonal grid has the same structural properties.
Additional mesh layers are for imposed loads, in particular seismicactivity. CCTV is located in an area of signi�cant seismic activity so that even in the most severe seismic event, quanti�ed as a levelthree (oroccurrence once every 2475 years) the building may experience severe structural damage but would not collapse. In particular there were concerns that the high use of structural steel would lead to reduced ductility, which was not the case as member thickness was tuned at a local level to increase �exibility.
Vertical structural elements in loop structure are indicative of the internal vertical structure which is a secondary support system to the ‘continuous loop’
The L shaped base section anchors and greatly sti�ens the towers atthe highest structural demand point.
Both towers lean against each other at an angle of 6 degrees, propped by the L shaped overhang which cantilevers from the tower.
The primary structure of CCTV is the multilayered external‘continuous tube structure’, accounting for 55% of all materialswhich has been broken down, separated from �oor plates in thisdrawing.
The diagonal grid is a re�ection of everyday forces and exceptionalloading conditions. The separations in density reveal the vastvariations in load.
The outermost steel diagrid frames the facade of glass panes.Thefacade, roofs and undersides assist in dispersing the load.
Curtain wall system - - Aluminium and Glass