Portland Swap Meet Homepage
Posted on October 20th, at pm. Weekend Event Guide: Dirt Lab fundraiser, swap meet, scavenger hunt, and more Gateway Green is a 25 acre park development in East Portland. . maps includes a comprehensive directory of everything Southeast Portland's Tuesday Night PIR Race Series (OBRA). Shareholders' equity (Group share). The Board of Directors will propose to the Annual General Meeting of 29 May All our PIR insulation boards are heavily tested The Recticel Career Map describes 30 families Eastern Europe Currency swap contracts. Date and Time of Next Meeting – 30th November , Hrs, Maps: CCG and practice-level results are also displayed on maps, with results split A full Post Infection Review (PIR) was led by the Community would swap sugary drinks for water and milk and brush their teeth twice a day.
According to the Planning Portalwith a Building Notice: It is designed to enable some types of building work to get under way quickly; although it is perhaps best suited to small work. Under a Building Notice, the local authority is simply informed about the works and monitors it as it progresses to ensure the work complies with Building Regulations.
This means the fire safety and risk measures need to be re-analysed and the new conditions under which they function taken into account.
In the case of Grenfell Tower, the new works appear to have compromised the existing fire safety of the building. That cause is entirely irrelevant to what happened later.
What happened is the fire got out of a flat, maybe from an open window or through a broken window from the heat. And then it started heating the panelling and the insulation above [yellow in the diagram below]. That then set a chain reaction, in which the panel started to burn. You also have a wind tunnel effect sucking the flames up between the insulation and the external cladding, melting the solid polyethylene above, and continuing the fire right up the height of the building.
And that is what has caused the problems, because the polyethylene melts at a very low temperature and it catches fire. It is basically like a candle which is sandwiched between two sheets of metal. What is going on behind the metal or the other surface is entirely irrelevant to Building Regulations.
In practice, moisture penetration at these points can corrode steel-reinforced concrete structures and considerably shorten the life of the building; and in such instances cladding not only does not fix internal issues, such as the thermal performance of the building, but actually makes them worse, while also creating new problems.
The most lethal of the new problems created by the attachment of cladding to Grenfell Tower was that the panels appear to have circumvented the firestops that were part of the fire safety measures of the original design of the tower.
As in all tower blocks, these firestops sub-divided the building into discrete compartments separated by fire-resistant walls, floors and doors which are designed to slow the spread of fire from one compartment to another through their resistance to collapse, the transfer of heat and penetration of fire.
These works can be high or poor quality; they might be carried out for very desirable reasons; but sometimes many different types of works can unintentionally damage the fire safety arrangements of a building.
A previous fire in Grenfell Tower that started in a lift lobby in Aprillong before the refurbishment, was contained within the designed fire compartments without any resulting injuries, let alone loss of life. So what was it that made this fire, seven years later, so deadly?
Grenfell Tower Cladding Inas part of the refurbishment of the Lancaster West estate to which it belongs, Grenfell Tower was fitted with external cladding. This consisted of three layers: A mm-thick layer of Celotex RS thermal insulation yellow in the diagram above fixed onto the precast concrete panels brown in the diagram and the reinforced concrete frame. We found charred remains of this insulation material lying everywhere around the base of Grenfell Tower, together with the thin foil sheets that covered it.
Celotex, which is made from polyisocyanurate PIRhas a Class 0 fire performance rating, the highest rating a material can get in the Building Regulations. However, as Arnold Tarling said, this rating indicates surface spread, not resistance, and its Health and Safety Datasheet notes: As with all organic materials, toxic gases will be released with combustion.
Fire fighters should attack the fire according to the combustible materials present, and use breathing apparatus. Following the fire Saint Gobain confirmed that they had supplied Celotex RS for use at Grenfell Tower, and not Celotex FR FR indicating fire resistant as had been specified in the August Sustainability and Energy Statement that was published as part of the Planning Application by the engineering consultants for the refurbishment, Max Fordham.
A cavity or gap of 50mm between the first layer of thermal insulation and the cladding panels in order to allow any build up of moisture to evaporate. An outer layer of cladding grey in the diagram consisting, on the ground floor columns, of BCM glass reinforced concrete GRCthen from the mezzanine to the roof of Reynobond aluminium composite material ACM rainscreen cassette panels.
This is a sandwich of two coil-coated aluminum sheets, each 0. The cheaper Reynobond PE contains a polyethylene core, which burns slowly, even after being removed from a flame. The Principal Designer for the refurbishment of Grenfell Tower was Studio E Architectswhich has subsequently removed all information from its webpage on the refurbishment.
Before they did so, however, an architect with considerable experience of fire safety took this screen grab of a photograph above of the cladding and sent it to ASH. What it clearly shows is that in addition to the 50mm gap between the rain-screen panelling and the insulation, there is a considerably larger void between that and the ten concrete rotated pillars that run up the building, not only creating a series of full-height vertical voids for smoke and flames, but completely bypassing the horizontal fire stops at each floor, thereby rendering them useless.
At the four corners of the tower the cladding formed large boxes around the concrete pillars, creating even larger cavities for the heated air, which would account for the fire moving up from the fourth to the twenty-fourth floor in just fifteen minutes. A further effect of the cladding was that its installation appears to have moved the position of the windows in the tower block outwards, creating a gap between the window frame and the concrete wall through which smoke could pass.
Again, the extent of the void between the cladding and the concrete walls is revealed, but also how far back the existing windows are set as a result. The Studio E drawing below shows the existing window position in black, with the proposed window position indicated in red. This meant pulling the windows forward of the original concrete structure.
It was proposed that the existing window frame could be retained under the proposed linings, and that the new window could be located within the rainscreen system, attached to the support of the concrete structure on brackets. This created a gap between the new window frame and the existing concrete structure, shown to be partially filled with different insulation to that in the rainscreen panelling.
As Ian Abley warns, this is only a drawing at the planning stage of the refurbishment process, and therefore a snapshot in time; but the planned separation of the windows from the concrete meant that this gap would have been technically critical for the spread of the fire from the initial source in the flat to the cladding: If fire got inside the cavity through the interface gap between window and concrete only non-combustible cladding and insulation would resist ignition.
Fire could flare through the opening and scorch the cladding externally. The cladding face might resist some spread of flame. But if exposed for long enough only a non-combustible cladding would resist ignition. A flat fire happened. Fire would bypass any cavity fire barriers installed. It would spread upwards and across, from window to window opening. Usually, in tower fires, the concrete levels act as a sealed lock to contain the fire, but this has not happened here. Management Decisions responsible for the Grenfell Tower Fire Grenfell Tower is part of the Lancaster West estate, the rest of which is made up of three 5- and 6-storey finger blocks between which lie landscaped gardens.
Before the council took the land away from them to build the new Kensington Aldrige Academy secondary school — for which the refurbishment that killed the residents was offered as a form of compensation — there were several football grounds and other games courts to the north of the tower. When construction was completed in the original estate would have been a paradise to the tenants fortunate enough to be housed there.
And rather than a ghetto for the poor that council estates have subsequently been denigrated as, the community included a mix of social classes. Grenfell Tower was built to Parker Morris Standardswith the top 20 storeys containing flats. Built around a central core containing the lift, staircase and vertical risers for the services, each floor had four 2-bedroom and two 1-bedroom flats, making a total of bedrooms.
Communal facilities included a nursery on the first floor or mezzanine level and the Dale Youth amateur boxing club, which moved into the ground floor of Grenfell Tower in As part of its refurbishment inboth nursery and boxing club were relocated, respectively, to the ground and third floor or walkway leveland an additional six 4-bedroom and one 3-bedroom flats added on the first and fourth floors. This brought the total number of flats in Grenfell Tower up toand the number of bedrooms to In an interview in June with Constantine Gras, an artist who was commissioned by the Kensington and Chelsea Tenant Management Organisation to make a film about the refurbishment, Nigel Whitbread, the architect of Grenfell Tower, said of its original construction: Grenfell Tower was a totally different form of construction, and from what I can see could last another years.
I had heard that there had been problems a few years ago with the heating and that it was no good, and talk of the whole block having to come down.
The Truth about Grenfell Tower: A Report by Architects for Social Housing
KCTMO has a board which at the time of the Grenfell Tower fire comprised eight residents, three council-appointed members and two independent members. Their identities have now been removed from the company website, but at the time of the fire they included: And although the housing stock it manages is still owned by the council, as an ALMO the only UK TMO, apparently, that is also an ALMO it is exempt from Freedom of Information requests not that councils answer these either, or when they do the information requested is redacted.
XG Communities will organize and streamline the application and deployment processes for small cells in Portland.
They modify it so it can be unlocked by your phone. Lime Juicers pick up scooters at night, charge the battery, then redeploy the Lime-S out in the community.
The Cellular Connection What often gets overlooked is the cellular cost. NarrowBand IOT, which uses just a sliver of spectrum, is probably a better match for bike sharing. Less costly, less juice, longer range. A Twilio SIM monitors each bike and scooter in real time. Bike Share Unicorns Ofo launched in with 20, bikes in Beijing. It now operates more than 10 million bicycles in more than cities globally. The company launched its bikes in the US last fall, starting in Seattle.
Mobike is backed by tech giant Tencentwhile Ofo is backed by e-commerce heavyweight Alibaba. Each JUMP bike has a watt electric motor which powers the front tire. JUMP employees swap out the battery packs every three days. It appears to be moving towards e-scooters. The Way to Go You could park a dockless bike almost anywhere.
With a dockless system, Hayden Island commuters might leave the bike at Expo, and make it available for day trippers exploring the Columbia River. By pm, many bikes would likely be available again at Expo for the return home to Hayden Island. Dockless bikes and scooters could get you to the Max train for a buck. Pricing could be adjusted so bikes end up back where they started. They also let riders use bicycles without smartphone or credit card.
Seattle lets private companies launch public bike-share services. Their bikes can be parked anywhere and unlocked with a smartphone. For example, 6 bikeshare stations might be proposed; three in Vancouver and three in North Portland. Dock-less Bicycle-sharing systems are the way to go, since bikes can be tracked and located anywhere. An on-board generator would not be required.
Dockless bike sharing systems are designed so the user need not return the bike to a station. Instead, the next user can find a nearby bike by GPS.
The company unveiled the Lime-E at CESwith a rechargeable lithium battery and a watt motor. Skip Scooters have a retractable locking cable so you can lock it to stuff, not just leave it on the sidewalk. Now dockless electric scooters are becoming available from BirdLimeBikeand Spin. Skip Scooters come with a retractable locking cable that may help with bike clutter on sidewalks.
Venture capitalists apparently see e-scooters as a route to faster payback with their cost reportedly paid back in as little as one month. Bulkier e-bikes are more expensive, targeting an older consumer. Payback takes months or years. Every scooter that survives a month or so pays itself off.
Bike & Car Sharing | Hayden Island
At least three U. Mobike and OfO may be more problematic for city bureaucrats. A solar-powered bike share station could operate independently of the power grid. No grid tie, which lowers cost. It also allows the stations to be easily moved, for optimization of the system. A bike station might find synergy by partnering with an electric vehicle charge station network like Blink.
A public charge station for electric vehicles could also create a hub for car sharing like Zip Cars and bike sharing like Jump or Lime — all under one umbrella. Global bike share giant Ofo also received a permit from Seattle to launch 1, of its yellow bikes.
Ofo was among the first-ever dockless bike-share programs to launch in China. Alta Bike Share was bought by Motivate in October, Biketownpdx uses Social Bicycles Sobi bikes in 27 cities including Portland. Biketown tracks bikes with GPS allowing Portland customers to park anywhere, even beyond system boundaries.
Similar e-bike rates could apply in Portland. Perhaps the first 15 minutes of electric bike use could be free on Hayden Island.
Scoots is a competitive shared electric Geneze scooter service in San Franciso. Scoots with low battery are often FREE if you end your ride at a charging garage. The City of Portland and various electric vehicle stakeholders might partner in a Solar Charge Station that provides emergency backup power in the event of an earthquake. Each hub features solar charging, free WiFi and a live camera to deter theft. HOPR provides an open platform for all operators, no matter the size or type.
The Spinlister app and SwiftMile app may be good models. They could enable both bike stores and individuals to provide their own bikes and set their own rates.
But individual competitors could provide their own rates and services as well. The first dockless bikes used spoke locks, not integrated U-bolts. These spoke locks have an integrated GPS tracker with a Bluetooth connection to your phone to unlock the bike. Then you can leave them anywhere.Portland Swap Meet.
But people did, causing bikes to pile up at random places all over. Mobikes are powered by a small generator installed on the rear wheel hub to power a lock that goes through the spokes. Deeper Lock is similar to the spoke lock by the Chinese operators and features GPS tracking, anti-theft alerts via GSM, and a dB alarm, whilst twin solar panels ensure power by self-charging.
The device is locked and unlocked using the app. Plot your destination on your phone, Smarthalo shows the way. Bluetooth 5 beacons can push multiple payloads directly to the user. In this proposal, which encourages a bike hub but does not demand it, a Bluetooth connected U-bolt is added for better security. The reverse would also be true. At the Expo Centerthe Marriott hotel suites on North Portland Harbor may be a sponsor since bike sharing could provide an easy way for guests to reach the Expo Center or Delta Park, popular destinations.
You can set up a Chrome single-app kiosk using a Google device management account to manage and monitor a fleet of devices using the Google Admin console.
Portland International Raceway // Track Map
Of course most of these programs rely on heavy VC or government subsidies in their start-up phase. The e-bike could also supply power in an emergency, such as after a subduction zone earthquake. A system utilizing off-the-shelf bikes components, and software may allow each community to run and profit from bike sharing. Maybe not today…but soon. This concept of a bike sharing hub is an improvement over Spinlister. Unlike bike sharing programs like the one planned for Portland, it eliminates the high overhead and membership fees because they are owner-supplied, while available near high traffic areas.
That would cover basic operational expenses. Owners participate at their own risk and are responsible for their bike maintenance.
Locations could expand upon proof of concept.
While not fool-proof, the live camera archive and low-power Bluetooth trackers can create a geo-fence without a monthly fee. Renters must return bikes to the same rack when finished. The risk with these measures seem manageable, but the outcome is uncertain, which is why this concept is being proposed as a test.
Built like a mushroom or a large umbrella, the top shields the bikes from inclement weather. A watt panel produces an average of about 15 amps per peak sun hour, or about 90 amp-hours per day.
WiFi Hotspot with Zigbee controller.