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Earl Blumenauer Bicycle and Pedestrian Bridge (2022), is a tied-arch type bridge design spanning the Interstate 84 freeway in Portland, Oregon, USA. The bridge is aligned with NE 7th Avenue, connecting neighborhoods in Northeast Portland for bicycle and pedestrian users, but not for vehicular traffic. The design does accommodate use by emergency vehicles in the event of some catastrophic or seismic emergency. Previously known during design development as Sullivan’s Crossing, the bridge was dedicated and named for Congressman Earl Blumenauer, advocate for rail and streetcar mass transit, and promoter of commuting by bicycle. Construction was completed in 2022.
As the viaducts of the South Island Line pass through dense urban areas we were asked to design noise barriers along much of the length. With Aedas, Atkins developed an integrated solution that supported the overhead lines supplying power to the trains, allowed hot air and smoke from any fires to vent out and gave views out for the passengers.
Hopefully also it is also interesting to look at from outside. It is difficult to hide a viaduct but we came up with a gradated green tube of glass and metal facets that then shifts colour as it enters the two stations - which each have their own colour.
Photos during the construction of MTRs new South Island Line.
As the viaducts of the South Island Line pass through dense urban areas we were asked to design noise barriers along much of the length. With Aedas, Atkins developed an integrated solution that supported the overhead lines supplying power to the trains, allowed hot air and smoke from any fires to vent out and gave views out for the passengers.
Hopefully also it is also interesting to look at from outside. It is difficult to hide a viaduct but we came up with a gradated green tube of glass and metal facets that then shifts colour as it enters the two stations - which each have their own colour.
Photos during the construction of MTRs new South Island Line.
As the viaducts pass through Ocean Park and Wong Chuk Hang Stations and on to Ap Lei Chau much of their length is shielded by glazed noise barriers. These also support the Overhead Power Lines for the trains.
Photos during the construction of MTRs new South Island Line.
As the viaducts of the South Island Line pass through dense urban areas we were asked to design noise barriers along much of the length. With Aedas, Atkins developed an integrated solution that supported the overhead lines supplying power to the trains, allowed hot air and smoke from any fires to vent out and gave views out for the passengers.
Hopefully also it is also interesting to look at from outside. It is difficult to hide a viaduct but we came up with a gradated green tube of glass and metal facets that then shifts colour as it enters the two stations - which each have their own colour.
Photos during the construction of MTRs new South Island Line.
ound Pressure Levels (SPL) between -3 dB (pressure diminished with the respect to incident) and +6 dB (pressure amplified with respect to incident) are shown. The pressure is not displayed in the volume of the bones (gray regions) or in the volume of the air spaces or sinuses (black regions). (A) is a transverse section through the TPC with labels indicating the involucra (i) of the tympanic bulla and the expanded portion of the squamosal (sq); (B) is a coronal (horizontal) section through the TPC, at the level of the tympanic bullae (tb). Note the amplified pressure amplitude near the dorsal surface of the tympanic bullae (tb) from a reflection off of the squamosal bones (sq).
As the viaducts pass through Ocean Park and Wong Chuk Hang Stations and on to Ap Lei Chau much of their length is shielded by glazed noise barriers. These also support the Overhead Power Lines for the trains.
Photos during the construction of MTRs new South Island Line.
The steel roof of OCP was developed rapidly at the end of the project after a change in brief removed the need for a solid concrete roof. I was very pleased with the result which I hope will be simple an elegant.
The primary structural element is the central concrete column. The steel connects at the head with a moment connection, stiffening the column into double curvature during typhoons. As a result the perimeter steelwork is lightweight, allowing better views out to the Ocean Park.
Photos during the construction of Ocean Park Station on MTRs new South Island Line.
At the end of the platforms the roof needs to connect back to the concrete frame. Unfortunately the cast-in bolts were missed out and post-drilled anchors used - I hope they cut the ugly projecting threads off!
The steel roof of OCP was developed rapidly at the end of the project after a change in brief removed the need for a solid concrete roof. I was very pleased with the result which I hope will be simple an elegant.
The primary structural element is the central concrete column. The steel connects at the head with a moment connection, stiffening the column into double curvature during typhoons. As a result the perimeter steelwork is lightweight, allowing better views out to the Ocean Park.
Photos during the construction of Ocean Park Station on MTRs new South Island Line.
As the viaducts of the South Island Line pass through dense urban areas we were asked to design noise barriers along much of the length. With Aedas, Atkins developed an integrated solution that supported the overhead lines supplying power to the trains, allowed hot air and smoke from any fires to vent out and gave views out for the passengers.
Hopefully also it is also interesting to look at from outside. It is difficult to hide a viaduct but we came up with a gradated green tube of glass and metal facets that then shifts colour as it enters the two stations - which each have their own colour.
Photos during the construction of MTRs new South Island Line.