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Fenghua Bridge, China- Art Mixed with Bridge Design

 
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Dr. N. Subramanian
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PostPosted: Sat Mar 23, 2013 2:39 pm    Post subject: Fenghua Bridge, China- Art Mixed with Bridge Design Reply with quote

Fenghua Bridge, China- Art Mixed with Bridge Design

This project provided the designer the opportunity to develop two themes: one on the geographical anchorage of the structure on the river, the other on the sign of modernism attached to the technological and artisanal capacities of contemporary China.



This complex structure consists of multiple arches developed in space which are linked by “the petals”. These petals have two objectives: to connect the arches to form a rigid structure, providing the necessary buckling resistance to the thin members of the arches, and to capturing the light day and night of the moving sun  and  the lights of the cars moving on the roadway.


The 9 arches of the central span consist of box-girders welded together, and their dimensions are reduced to 400 mm wide by 550 mm high for a span of 127 m. They are shaped along the curves developing in the space permitting a global variation of the inertia of the structure according to the needs of  the forces. 128 petals link these arches to align and account for the internal stiffeners of this spatial structure.

The petals are of 64 different types, varying between 2 m x 3 m and reaching up to 9 m in their maximum dimension. They form double curvature surfaces aligned by the geometric links between the arcs and their position in space. The tailoring of these petals is a very particular expression of the connection between very advanced technology (reinforced polymerized fiberglass resin and metallic structure) and learned crafting in the fabrication of 64 molds of complex and elaborate geometries. By day, the petals capture, in their east-west orientation, the movements of the sun in the Tianjin sky. By night, they serve as large diffusers of light and transform the structure into a succession of orientated and separated reflectors floating above the river.          





Source:
http://www.worldarchitecturenews.com/index.php?fuseaction=wanappln.projectview&upload_id=1167
http://foter.com/Fenghua+Bridge/
http://www.subject-knowledge.us/Wikipedia-966934-Fenghua-Bridge.html
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