I really like the way that they stacked the stairs and the mechanical stairs. That’s a well designed station.
Did I never post my video riding the Gare Centrale-REM manual elevator ?
Last I checked (last year) it wasn’t locked, but you could only take it up from the platform level, and it is quite hidden behind a pillar.
Now it’s locked and you need to request for it to be unlocked, even with the current elevator closure
ohh good point. In Paris the new line 14 goes through an unfinished station but the screen doors are installed. I’m guessing platform construction would interrupt
À partir du 16 septembre (lundi prochain), les arrêts pour le service d’autobus, desservant la Gare Centrale en cas d’interruption du REM, seront déplacés sur la rue De La Gauchetière Ouest (devant la Place Bonaventure) en tout temps.
I don’t know a lot about elevators. What makes this one a manual one? It seems like any other elevators except that you need to hold the button while it’s moving? It seems to do everything automatically (open/close the door, stop at the floor)
The fact that you have to hold the button is what makes it manual yes
Lol really? It sounds more like someone didn’t install the latching circuit and the switch is just a momentary contact.
c’est quoi ça ?
J’ai vu ça passer sur Facebook:
Un phénomène connu avec le verre trempé
Spontaneous glass breakage
Spontaneous glass breakage is a phenomenon by which tempered glass may spontaneously break without any apparent reason. The most common causes are:[13][14]
- Internal defects within the glass such as nickel sulfide inclusions. Nickel sulfide defects can cause spontaneous breakage of tempered glass years after its manufacturing.[15] Nickel sulfide inclusions (“stones”) can be present in the glass. The most common cause of these inclusions is the use of stainless-steel machinery in the glassmaking and handling process. Small shavings of stainless steel containing nickel change structure over time and grow, creating internal stresses in the glass. When these stresses exceed the strength of the glass, breakage results. This type of breakage is almost always found in tempered glass and is indicated by a distinctive “figure eight” pattern, with each “loop” of the figure eight approximately 30 mm in diameter. Alternatively, small pieces of refractory brick can be eroded by the molten glass from the internal walls of the furnace during processing and become embedded in the finished glass. These are also known as “stones”, and can also break the glass when the glass is heated, as they create thermal anomalies.
- Minor damage during installation such as nicked or chipped edges later developing into larger breaks normally radiating from point of defect. While glass is being moved and installed, it is easy for the glaziers to nick or chip the edges of the glass with various tools. It is also possible for fasteners such as nails or screws used to attach glass stops to nick the glass edges if these fasteners are installed at an improper angle. These small nicks or chips may not result in immediate breakage. However, over time, as the glass expands and contracts, stress concentrations can develop around the nick, leading to breakage. In the case of tempered glass the entire unit usually breaks.
- Binding of the glass in the frame, causing stresses to develop as the glass expands and contracts due to thermal changes or deflects due to wind. Glass expands and contracts with changes in temperature and deflects due to wind, so almost all modern glass is set on resilient blocks at the bottom and with space for expansion at the sides and top. The gaskets holding the glass in the frame are also usually resilient to cushion the glass against wind buffeting. If no space is provided at the perimeter of the unit, the glass will bind against the frame, causing internal stresses to develop in the glass which can exceed the strength of glass, resulting in breakage.
- Thermal stresses in the glass. Breakage due to thermal stress is most common in large pieces of sealed insulating glass with heavy heat-absorbing (reflective) coatings. The coating is usually applied to the “number two” surface (the inside face of the outside lite). This causes the outside lite of glass to heat up more than the inside lite as the coating converts radiant heat from the Sun into sensible heat. As the outer lite expands due to heating, the entire unit bends outward. If the spacer bar or other edge condition connects the two lites of glass in a very rigid manner, bending stresses can develop which exceed the strength of the glass, causing breakage. This was the cause of extensive glass breakage at the John Hancock Tower in Boston.
- Inadequate glass thickness to resist wind load. A pane that is too large or thin, having not been properly engineered for wind loads on the site, can be broken by the wind. See Bernoulli’s principle on wind.
Any breakage problem has more severe consequences where the glass is installed overhead or in public areas (such as in high-rise buildings). A safety window film can be applied to the tempered panes of glass to protect from its falling. An old-fashioned precaution was to install metal screens below skylights.
On peut clairement voir un point central sur cette photo. Ça ressemble plus à un impact qu’à d’autre chose.
Pas nécessairement, le défaut aurait pu se trouver là
Ouch
Je me demande si c’est ce qui s’est passé avec la marquise de l’entrée de la gare d’autobus. Toutes les vitres sans exception sont fracturées.
Je crois qu’à la gare de bus, c’est voulu
Je leur ai posé cette question il y a 10 ans, c’est effectivement voulu
Ha Ha. Content d’apprendre ça.
Il me semble aussi avoir vu des panneaux de verre éclatés à Du Quartier, dans la passerelle vers le solar