Great video! How do historical buildings and landmarks get retrofitted to meet modern earthquake safety standards without compromising their cultural significance?
We do everything we can to hide the retrofit work on the inside. And how we do depends on the building material. Like for San Francisco where they have those Victorian Houses with a garage underneath and for brick buildings and homes there are steel frames placed on the inside of the building. For concrete buildings we wrap the concrete in a special material to strengthen them and then paint over them. For special government and other institutional buildings like San Francisco City Hall and similar government buildings we tunnel under the foundations and put in dampening systems.
@@erichansen2860 To add to that - the Kearney Hall (civil engineering building) at Oregon State was originally an unreinforced masonry building. It was retrofit with a steel frame inside.
Great video! I should add if your building is not earthquake resistant, for example unreinforcrd masonry buildings, your best bet is to get out of the buidling if possible.
Hi Mat Picardal, just requesting one video. Please give us a template on how to write a Design report (Steel/Concrete) for a particular project. Using MS Word and MS Excel
Great video. A quick comment on Item #2 though. Strike-Slip earthquakes can create those types of valleys. Basically, it's caused by the fact that the fault is not a perfectly straight line. So, even though the overall movement is shear, deviations of the "straight line fault" cause some areas to act in tension separate. Those tension zone separations can create big valleys, although perhaps not as depicted by the San Andreas movie. This phenomenon is an all too familiar problem for tunnel engineers working in seismic areas where a buried valley in a fault zone can cause lots of issues when you thought the ground was supposed to be rock. Cheers.
i'm a structural engineer in italy. we are in "Seismic zone" (nothing relation to japan or california, but we have a lot of old buikdings, heritage and cultural monument, small house and town). We have tons of small, rigid mansory building. we are "always" in the plateau spectrum. when i have to work with tall building (one in italy and a few around the world) wind and vibration is the "dominant load". tall building have long period, brb, massdamper, shock transmitter and so on. Liquify is a big problem also in our little italy. for the buildings but also for road and hills and montains hill. the most of italy is "not in plane" but we have towns, road, pipeline, poewrline and so son, in a clay slope. a lot of buildings have not pile foundation (except for venetian land, where i come from and where i live now, but for the majority building have superficial "fondation beam" or discrete superficial plinth/point support) 6:26 thanks. "earthquake safe buldings"...if you not have isolator or damper, means your life is safe, but the building gets damaged to dissipate energy. it is very complex to make customers and administrations understand it. if you do not want to install isolators or dampers, you must consider even severe damage to the structure.
when i first learned about hinges being created in the design of ductility in structures for earthquakes, my first reaction was "Wait, Am I reading this right?"
Great video! How do historical buildings and landmarks get retrofitted to meet modern earthquake safety standards without compromising their cultural significance?
We do everything we can to hide the retrofit work on the inside. And how we do depends on the building material. Like for San Francisco where they have those Victorian Houses with a garage underneath and for brick buildings and homes there are steel frames placed on the inside of the building. For concrete buildings we wrap the concrete in a special material to strengthen them and then paint over them. For special government and other institutional buildings like San Francisco City Hall and similar government buildings we tunnel under the foundations and put in dampening systems.
@@erichansen2860 To add to that - the Kearney Hall (civil engineering building) at Oregon State was originally an unreinforced masonry building. It was retrofit with a steel frame inside.
Great video! I should add if your building is not earthquake resistant, for example unreinforcrd masonry buildings, your best bet is to get out of the buidling if possible.
Hi Mat Picardal, just requesting one video. Please give us a template on how to write a Design report (Steel/Concrete) for a particular project. Using MS Word and MS Excel
I just want to say thanks for the video! I love your content! 😁
Great video. A quick comment on Item #2 though. Strike-Slip earthquakes can create those types of valleys. Basically, it's caused by the fact that the fault is not a perfectly straight line. So, even though the overall movement is shear, deviations of the "straight line fault" cause some areas to act in tension separate. Those tension zone separations can create big valleys, although perhaps not as depicted by the San Andreas movie. This phenomenon is an all too familiar problem for tunnel engineers working in seismic areas where a buried valley in a fault zone can cause lots of issues when you thought the ground was supposed to be rock. Cheers.
Can you make a video about the Beipanjiang Bridge and how it was built?
i'm a structural engineer in italy. we are in "Seismic zone" (nothing relation to japan or california, but we have a lot of old buikdings, heritage and cultural monument, small house and town). We have tons of small, rigid mansory building. we are "always" in the plateau spectrum. when i have to work with tall building (one in italy and a few around the world) wind and vibration is the "dominant load". tall building have long period, brb, massdamper, shock transmitter and so on.
Liquify is a big problem also in our little italy. for the buildings but also for road and hills and montains hill. the most of italy is "not in plane" but we have towns, road, pipeline, poewrline and so son, in a clay slope. a lot of buildings have not pile foundation (except for venetian land, where i come from and where i live now, but for the majority building have superficial "fondation beam" or discrete superficial plinth/point support)
6:26 thanks. "earthquake safe buldings"...if you not have isolator or damper, means your life is safe, but the building gets damaged to dissipate energy. it is very complex to make customers and administrations understand it. if you do not want to install isolators or dampers, you must consider even severe damage to the structure.
Thank you for informative presentation 👍
when i first learned about hinges being created in the design of ductility in structures for earthquakes, my first reaction was "Wait, Am I reading this right?"
Great job lord mat!
you know, i'm still not sure i want to be in a skyscraper during in an earthquake...... 😅
i love being structural engeer
👷👍🙏
Just duck...and cover!!!
I’m so happy you’ve lost weight