Portland, Oregon 2021-10-24 10:49:31 –
Portland, OregonPortland Tribune) — The pinnacle of the $ 2 billion large-scale expansion of Portland International Airport is the upcoming mass of timber roofs in the main terminal.
The undulating edges of the roof are characteristic of airport cursive, if not the entire city. In the TCORE, or Terminal Core Redevelopment Project, the main terminal will be transformed into one huge space with picture windows and round skylights, filled with ceilings decorated with living plants and woodworking grids.
The new terminal roof is currently being assembled opposite the airfield. While the airport is operating under it, it will be disassembled and disassembled in the summer of 2022.
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A tour of the construction site on October 20 revealed the scale of the new building. The steel girders to which the glulam (glulam) beams are connected are currently only 13 feet off the ground, while the 392,000 sq ft roof peaks at 54 feet in height at installation. The gigantic structure is built up of 20 modules or “cassettes” that fit together like slices of 120ft x 110ft bread.
Glulam beams were manufactured in Eugene by the Zip-O laminator. The beams towards the ends of the structure are cut in the shape of scallops, but the plank lines are relatively straight. However, the roof bulges in the center and is dome-shaped. There, the lines of the laminated lumber beams form a considerable curve, and the pieces of wood packed together are bent into shapes.
For computer numerical control (CNC) profiling, the beam was sent from Eugene to Timberlab, Swinerton, Portland, where computer numerical control (CNC) profiling was performed. This means that a robot router was used to shape the edges of the beam and drill holes for metal connectors to attach the laminated beam to the steel structure. General contractor Swinerton specializes in large quantities of timber, such as laminated lumber beams and cross-laminated panels and components. Swinerton built the First Tech Federal Credit Union in Beaverton in 2018 and the Harder Mechanical wooden construction in 2021 at Martin Luther King Jr. Boulevard on Northeast Thompson Street.
The roof is assembled in two places. One consists of 16 modules and the other 4 are modules. On a tour of the 16-module site, Hoffman-Skanska project manager Katrina Day revealed that the mechanical work had been completed and was disassembled for movement. This means that all conduits and all sprinkler pipes are in place, with insulation and finishing. The structure is then cut while being rolled apart across the runway to the terminal area.
Vince Granato, Chief Project Officer at Portland Port, explained that this is just one of the five projects that make up the airport expansion to take place by 2025.
“We really bring the airport to the future,” he said, standing under the skylight. The goal is to create a larger, more navigable terminal in case of a large earthquake that is stable and overdue.
“Some airports have the luxury of building new airports, but they don’t have the space to do so,” he said. Portland Port has chosen a modular construction method. Work on the new roof is taking place on the west side near the Ground Run Up enclosure. It’s a type of huge booth where jets can spin their engines on the ground and test them without much hassle.
“We had to come up with a creative way to do this, and it’s much safer,” he said. Because they work at lower heights, workers are not only less dangerous, but also away from all the hassles of the airport, including vehicles and passengers.
As part of the Architect ZGF’s design, the space between the beams is first covered with an acoustic baffle (large flat plate) and then 3 x 6 with a Dougfer grid. This fairly heavy timber looks like a matchstick from far below. Other wooden details around the huge skylight give you the feeling of being in a pickup stick game.
However, this all needs to be assembled before moving across the parking lot. The problem with modular buildings is how to move the finished product into place, as it is too large for most transportation systems. Therefore, from March 2022, the steel beams on the roof of the new airport will be mounted on a self-propelled modular transporter (SPMT), such as the bed of a huge truck with many wheels. Six trolleys are used, each with 24 wheels and rated at £ 1m. SPMT is used to move oil rigs. Mamut, a Dutch company working at the airport, also installed a movable confinement shelter on the Chernobyl nuclear power plant in 2016, which is larger than Notre Dame Cathedral in Paris.
Each cassette at Portland Airport weighs about 1 million pounds. They are moved one at a time. The wood is designed to bend in the event of an earthquake, but the synchronized jacks prevent the ride quality from becoming too bumpy. Project site trucks carry orange and white checkered flags for the safety of the airfield needed near the airport runway.
70% of the grid will be installed before the roof moves and the rest will be added later during installation. This is because the worker has to work around the wood to reconnect the wires and pipes.
Portland Port advertises how the new product was made locally, from sawmills in Oregon and Washington to local steel. The roof is supported by elegant steel Y-columns manufactured by Thompson Metal Fab Inc across the river in Vancouver. They are made from rolled steel from Evraz on North River Gate Road.
ZGF’s vision is a space partitioned into various zones by undulating roofs, while feeling unobstructed. This experience provides travelers with comfortable cocoon chairs, light is filtered through wooden slats, and offers beautiful views of the mountains and plane takeoffs and landings. The terminal will also be remodeled, but the roof, rather than the carpet, defines new elements that give the airport a new look and feel.
PDX Next is an entire $ 2 billion airport expansion project consisting of five different projects.
A terminal core project (known internally as TCORE) or a main terminal project includes the roof and all work in the main terminal to extend the center of the building 150 feet west. The cost of the roof is estimated at $ 100 million.
The PDX Next Terminal Roof Fabrication Yard is right next to Marine Drive. The new roof is a joint venture of Hoffmann Scanska. The project is expected to be completed in 2025, but some of the main terminals may open in 2024.
There are 200 craft workers in the lined roof area, and another 400 are working at the airport for other projects.
For more information www.pdxnext.com..
Portland airport crafts wooden roof, part of $2B expansion Source link Portland airport crafts wooden roof, part of $2B expansion