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Russian
00:00:01
[music]00:00:09
[applause]00:00:13
[music]00:00:18
St. Petersburg is one of the most beautiful00:00:20
metropolises in the world, which00:00:23
travelers from different00:00:25
parts of the world come to see00:00:26
in 2018 alone, over00:00:30
8 million tourists visited here and in the same year, located00:00:32
on the coast of the00:00:34
Gulf of Finland at the mouth of the Neva River the city experienced a00:00:37
unique event for our country; the00:00:40
construction of the Lakhta Center of an00:00:43
amazing skyscraper was completed, which became00:00:45
the tallest in Europe; it00:00:49
outgrew the previous European00:00:52
record holder, the Federation Tower in00:00:55
Moscow City, by as much as 88 meters and ended up in 11th place in the00:00:58
world high-rise ranking, but00:01:00
the exclusivity of this skyscraper is not in00:01:02
its height and the fact that it literally00:01:05
stands in a swamp, many were sure that a00:01:09
building of such height and weight was simply00:01:11
impossible to build on the soil of00:01:13
St. Petersburg, it would either sag or00:01:16
simply collapse into the bay about how our00:01:19
professionals proved to the whole world that00:01:22
everything is possible, see our release00:01:26
[music]00:01:28
for the first time, skyscrapers were built using00:01:30
frame technology;00:01:31
hundreds of steel profiles carried the entire00:01:34
load on this steel load-bearing frame; the00:01:36
remaining structural00:01:39
elements of the building were attached; however, above 300 meters, the00:01:42
steel skeleton of columns and beams is no longer00:01:45
so effective; the architects of an American00:01:47
company developed a completely new00:01:49
structural system for high-rise buildings the00:01:52
supported core according to this technology00:01:54
the core is in the center and on the sides00:01:57
of the support today this technology00:02:00
underlies almost all modern00:02:02
super-tall skyscrapers including the00:02:05
460 two-meter Lakhta Center00:02:13
foundation of the Lakhta Center building is a powerful00:02:16
reinforced concrete box resting on00:02:19
264 its depth is up to eighty-two00:02:22
meters diameter 2 meters this is the00:02:26
widest in the world at the first stage00:02:29
of construction a concrete wall was created00:02:31
in the ground a structure to protect00:02:34
the future pit from water and pressure the00:02:36
wall in the ground is a large 5-sided00:02:39
glass about 300 meters long the depth of the00:02:42
wall in the ground is 31 and a half meters00:02:46
just imagine This is an underground00:02:49
wall as high as a 10-story00:02:51
building; the00:02:54
base of this foundation is a layer of00:02:56
Viennese Glens lying at a depth of 2000:03:00
to 25 meters, while the auto center00:03:03
uses hanging pile technology in00:03:06
which the main load-bearing load00:03:08
is placed not on the base but on the side00:03:11
surface of the piles. the center00:03:14
was created right on the spot in the ground,00:03:17
first you drill holes00:03:19
82 meters deep, a channel is laid into your frame00:03:23
for wires transmitting signals from00:03:25
pressure sensors and ultrasonic00:03:28
sensors, as the sections00:03:30
of the frame are immersed, they are joined together, the next00:03:33
stage is concreting the well, the concrete00:03:35
mixture falls into the well along a concrete casting00:03:38
pipe the size of a tooth, preventing the soil from collapsing00:03:41
after installation, they dig a pit00:03:45
17 meters deep as00:03:47
the pit is dug, the wall in the ground is subjected to00:03:49
enormous lateral pressure to00:03:52
hold it, a spacer system is created, 400:03:56
reinforced concrete disks on supports, the00:03:58
designers of the Lakhta Center gave00:04:00
preference to a spacer disk since00:04:03
only they allow work to be carried out on In the00:04:05
area adjacent to the pit, the00:04:11
supports for the disks are metal00:04:14
I-beam columns that were00:04:16
installed in 50 of the 264 piles.00:04:21
Having reached the planned depth,00:04:23
builders begin cleaning the00:04:26
pile heads.00:04:29
The weight of the Lakhta Center tower is 670 thousand tons and00:04:34
the main part of the load falls on the00:04:37
core of the building. Calculations have shown that the00:04:39
monolithic foundation slab does not00:04:41
allows you to evenly distribute the00:04:43
load from the center to the periphery;00:04:45
the optimal solution to this problem was the00:04:48
so-called00:04:49
box foundation; massive lower and00:04:52
upper slabs, as well as intermediate00:04:55
floors, are connected by the core and the walls of00:04:57
the frame; this design guarantees00:05:00
high reliability; the00:05:01
bottom slab of the foundation is a monolithic00:05:04
seamless pentagon 3.6 meters wide;00:05:08
it is the basis of the foundation and00:05:11
transfers the pressure of the weight of the skyscraper to00:05:13
its own, it was00:05:16
she who got into the Guinness Book of Records. The00:05:18
builders00:05:21
laid 19,600 24 cubic meters of concrete in the00:05:27
base of the building in forty-nine hours. The feat of St. Petersburg00:05:29
builders is to achieve the00:05:31
load-bearing capacity of the foundation with00:05:34
the smallest possible dimensions; this became00:05:36
feasible thanks to the technology of00:05:39
continuous concreting yes yes, like during the00:05:42
construction of bridges in Vladivostok, and00:05:45
if you forgot or did not see this issue,00:05:47
then the link is in the upper right corner00:05:50
when concrete is poured with breaks between the00:05:53
old and new layers,00:05:55
cold seams appear, this means delamination and a00:05:59
decrease in the load-bearing capacity of the00:06:02
bottom slab for pouring, they were preparing to redo it in advance00:06:04
work impossible00:06:07
participants rehearsed everything that could00:06:10
go wrong for example 13 concrete00:06:12
plants from suppliers trained in00:06:15
making a concrete mixture according to a00:06:16
unique recipe until they00:06:19
achieved its absolute identity00:06:23
[music]00:06:27
the basis of any skyscraper is a00:06:30
reinforced concrete core that runs from the00:06:33
foundation to the top floor of the building00:06:35
core the Lakhta of the center is a00:06:38
hollow concrete cylinder with a thick outer00:06:41
wall inside the core, vertical communications are placed,00:06:45
utility networks, elevators and emergency00:06:48
stairs, a modern engineering solution helped to build such a core, the00:06:53
lifting rearranging formwork system itself is00:06:56
based on what has already been built and also00:06:58
moves up on special rails,00:07:00
these rails like the rest the structure00:07:03
automatically rises to a new00:07:05
level for the Lakhta center, the00:07:08
formwork system was divided into two parts, the northern00:07:10
and southern ones, they rose independently00:07:13
of each other, but in a strictly sequential order, the00:07:15
northern part constantly catches up with the southern one;00:07:19
this technology allowed saving00:07:21
time; the core of the Lakhta center grew at a00:07:24
rate of 6 7 days per one floor on the way00:07:28
from the first floor to the last, the system00:07:30
will make several long stops00:07:33
according to the project, there are four in the building,00:07:36
and for trigger floors this is a kind of00:07:38
additional foundation that ensures the00:07:41
stability of the structure00:07:43
during the construction of such a tall building00:07:45
as the Lakhta Center, it is necessary to maintain the00:07:48
absolute verticality of the structures, a00:07:50
millimeter error on the first floors will00:07:53
result to the deviation of the building by meters on the00:07:56
spire, the geodetic grid, sensors on00:07:59
the core, satellite receivers, all this00:08:02
provided reliable control during construction00:08:04
to constantly keep the00:08:07
deviation delta tending to zero and be00:08:10
confident in the result of the00:08:16
shaping of this tower, if we00:08:18
look at this, the sculptural form of this00:08:21
spindle tower spire is00:08:24
quite unique form for00:08:26
architecture, usually00:08:28
extruded towers have a rectangular00:08:30
shape of most towers, such they00:08:32
are repeated by the shape of the plan from floor to floor,00:08:36
that is, the extruder of the tower is vertical00:08:39
or stepped, such as Stalin's00:08:41
skyscrapers00:08:42
in Moscow, Stalin's high-rise buildings, what is my00:08:46
uniqueness00:08:47
is this is a hybrid of00:08:49
dome spiers if we take the dome as the00:08:52
most top and start pulling it, then at00:08:55
some point we will come to this00:08:56
shape of the tower, it expands, narrows and00:08:59
twists on each floor by00:09:01
eighty-two hundredths of a degree00:09:03
relative to the central axis, which00:09:05
is 89 degrees for the entire00:09:08
skyscrapers,00:09:10
why is this shape a lot of symbols00:09:13
that we can create in the00:09:15
first place these are the towers gas poma if you00:09:17
look at the logo of Kostroma you will see00:09:19
a flame and what is this flame, that is, it is00:09:22
so dynamic and00:09:26
these wings are like tongues of flame in a brazen00:09:29
way this is a spire and a spire this is a00:09:32
historical form that is00:09:33
complimentary to the sky line of00:09:35
St. Petersburg spire dome and here00:09:38
hybrid spire dome transitional form00:09:41
paid off spire00:09:43
love you peter creation love your00:09:47
strict slender spire neva sovereign00:09:50
current and of course goes from friends00:09:56
aquatic with their backs to the guns but he also has his back to00:09:59
us we because his lines were slightly00:10:02
paraphrased we00:10:04
saw with our own eyes 800 24 meters of the Burj Khalifa00:10:08
in Dubai we saw the sky tree in Tokyo, we saw00:10:13
many of the00:10:16
accents,00:10:17
of course, in New York, and so on and so00:10:20
on, we saw the twins, we saw the00:10:23
Rockefeller Tower, and we saw many many such stories,00:10:26
of course, in the context of00:10:30
such architecturally developed cities,00:10:33
precisely in the high-tech style, of course, these00:10:37
works don’t look right there so00:10:39
accentuated as in Pushkin’s native00:10:41
classic,00:10:43
the word St. Petersburg will not appear00:10:46
because here it will give a challenge to the city;00:10:50
it is built according to the principles on which00:10:54
the architecture of high-rise dominants00:10:56
developed from the Egyptian pyramids and the entire00:11:00
mass of the building is ultimately concentrated00:11:02
centrally symmetrically at the apex point,00:11:06
that’s the whole mass and that’s it. the top goes to00:11:09
Tanya, not if we look at the proportions of this00:11:12
tower, it’s one-eighth the base of the tower00:11:15
is one-eighth of its height, it’s like00:11:18
in a Tuscan colony or like in many00:11:21
European dominants, if we00:11:24
analyze and after this tower, then many00:11:27
European historical high-rise00:11:28
dominants simply fit into it like the00:11:30
Venetian company barked the Gothic00:11:33
cathedral in Amsterdam and let's00:11:35
take the symbol, everyone knows the turrets, the00:11:37
replaced turrets of the northern façade of the00:11:40
sagrada, the name of Antonio Gaudi in00:11:42
Barcelona, then in form they just00:11:45
fit right here completely one to one, that00:11:47
is, this is the form it is organic and we00:11:50
know Gaudi was he loved nature and he00:11:52
brought natural forms into architecture in00:11:56
this sense, here is the organic nature of this form, I00:11:59
definitely00:12:01
love your strict,00:12:03
slender appearance, it seems to me that you are strict00:12:06
and this is exactly about the tower about00:12:08
architecture and00:12:11
you want to say about architecture, so I00:12:13
went far away in Dubai and Tokyo00:12:17
in Shanghai the00:12:19
towers that I listed, I think that00:12:23
this is one of the best architectural forms00:12:25
that I was able to see, I am very00:12:29
proud and00:12:30
but we are still 400 meters short of the Burj00:12:34
Khalifa, but we do not put up with00:12:37
distances of meters here, and we are talking about00:12:40
architectural projects that are worthy of a00:12:43
great city great capital and00:12:45
of course a great country00:12:47
[music]00:12:52
in recent years this is a record project00:12:54
for the amount of glass not only in Europe00:12:56
but also in the world, we are talking about about a million00:13:00
square meters of glass, the outer00:13:02
shell is about 70 thousand square00:13:05
meters, but since these are multilayer double-00:13:08
glazed windows, the amount of glass is hugely00:13:11
unique This object is also due to the fact00:13:13
that the façade of this tower is the00:13:16
largest cold-bent façade in the world. The00:13:18
glass is flat; it can be heated and00:13:21
bent, but this is very costly for00:13:23
the environment. In the center,00:13:25
innovative cold-bending technology is used; a00:13:28
sheet of tempered glass is not heated, but is00:13:31
bent by the very shape of the frame into which00:13:34
it is inserted, these frames already have a given00:13:37
shape, curved in a spiral, making up a00:13:40
facade pattern from identical double-00:13:42
glazed windows, a continuous00:13:44
flowing line of glass is obtained00:13:47
[music]00:13:48
in this sense, the uniqueness of this tower,00:13:51
unlike other towers and a linear shape00:13:54
or double curvature there, is that it00:13:56
has a00:13:57
unique reflection continuous, fluid,00:14:00
while other towers where such00:14:03
technology is applied use00:14:05
standard flat double-glazed windows, the00:14:07
appearance turns out to be torn, here we00:14:09
managed to create a feeling of such00:14:12
continuity of a glass ingot,00:14:20
this is the northernmost skyscraper in the world, here in00:14:24
St. Petersburg, there are quite new days of the year00:14:27
when the tower is hidden by clouds, the upper00:14:29
part of us we can only see maybe the lower00:14:31
200 meters and the upper 260 are hidden in a00:14:35
cloud, this happens especially in winter00:14:37
quite often and what is a cloud it is00:14:40
actually a fertile one, passing00:14:42
by a00:14:43
settlement that is cooled to a temperature00:14:47
below 0, it condenses in the form of00:14:50
icicles in the form of growths such as even00:14:53
Isolde corals that begin00:14:55
to grow in this sense, the risk that00:14:58
the ice that can freeze on the tower00:15:03
and the snow that can stick to its00:15:05
facades, the upper part of the spire, at some00:15:07
point will begin to collapse, that is,00:15:09
there may be a risk for the tower itself,00:15:12
for the facade and for the surroundings, and possible00:15:15
even for people around00:15:16
therefore it was necessary to prevent these00:15:18
risks;00:15:20
special unique00:15:23
anti-icing systems were used; these are sensors00:15:25
that are used in aircraft manufacturing to00:15:28
determine the combination of elements of the00:15:30
fuselage and wings of aircraft. the00:15:49
atrium is 250 meters long, it is closed00:15:53
on top with pillows made of go and the face of such a00:15:55
synthetic material, these pillows are00:15:58
pneumatic, the material is translucent,00:16:01
allows light to penetrate first, but at00:16:03
the same time, since it is not glass, the00:16:05
risk of icing and the formation of snow00:16:08
bags is practically eliminated; the00:16:11
task was set to create one of the most00:16:14
environmentally friendly skyscrapers in the world, this00:16:15
skyscraper is one of several of the00:16:18
greenest00:16:20
skyscrapers on the planet in 2018, the tower is00:16:24
certified according to the international00:16:25
rating of the Lead Platyanom, this is the highest bar,00:16:29
taking into account various criteria for assessing00:16:31
energy efficiency,00:16:32
this is an innovative facade,00:16:34
energy efficient, 2-thread facade,00:16:36
which from the buffer zone allows you to00:16:39
save energy in winter, a00:16:42
greenhouse effect occurs if there is light the sun until00:16:44
heating costs are reduced and in the summer00:16:48
these buffer zones between the two threads00:16:51
of the facade are ventilated in case of00:16:53
overheating, the valves automatically00:16:55
open at the corners of the building and ventilation occurs,00:16:59
but if the rail guide in the corners of the tower has00:17:03
15 corners, of which 10 are external 5 internal00:17:07
in each corner are installed on the rails00:17:09
are an open guide at night, this is a00:17:11
system of external architectural lighting,00:17:14
LED lamps are integrated there,00:17:15
they change color, the image00:17:17
that at night can be done in cycles,00:17:20
the lighting here is absolutely00:17:22
amazing, but these angles work, and like00:17:28
for internal ventilation,00:17:30
air conditioning00:17:32
is like the gills with which the building breathes00:17:34
because the air is it sucks00:17:36
through these corners or throws out00:17:38
exhaust air all through these corners and00:17:41
in these same corners xyz guide rails00:17:42
on which the cradles move in00:17:46
case of need for maintenance of00:17:48
facades, washing facades or replacing00:17:51
double-glazed windows00:17:54
Lakhta Center has become a new symbol00:17:57
of modern St. Petersburg,00:17:59
attention to detail, cleanliness of lines and00:18:01
the integrity of the idea makes it a landmark00:18:04
object of world architecture, the Lakhta Center00:18:08
strives upward, it fascinates and00:18:10
attracts glances, directing them to00:18:13
the future,00:18:15
watch us subscribe,00:18:19
new journeys await you through the unique and00:18:21
most interesting mega construction projects of our country00:18:26
[music]Description:
Очаровательный Санкт-Петербург никогда не покидал высших строчек рейтинга самых посещаемых городов России. Оно и понятно: дворцы и музеи, мосты и проспекты, белые ночи и бесчисленное множество баров не дадут соскучиться! А всего несколько лет назад в городе на Неве появился удивительный небоскрёб — «Лахта-Центр». Здание высотой в 462 метра и весом в 670 тысяч тонн стало самым высоким в Европе, но его главный секрет в том, что оно возведено буквально на болоте! Узнайте, как архитекторы и строители возводили «Лахта-Центр» и с какими трудностями им пришлось столкнуться. 00:00 - Интро 00:16 - Краткое содержание выпуска 01:29 - Технологии первых небоскребов 02:11 - Основание и фундамент 03:06 - Висящие сваи 03:43 - Котлован 04:02 - Распорные диски 04:31 - Вес башни 05:17 - Как фундаментная плита оказалась в Книге рекордов Гиннеса? 06:27 - Конструкция 06:33 - Железобетонное ядро 06:54 - Самоподъемная опалубка 07:35 - Аутригерные этажи 08:14 - Форма 08:19 - Главный архитектор Филипп Никандров о форме веретена 09:31 - Шпиль 09:46 - Премьер Михайловского театра Марат Шемиунов цитирует наше всё! 11:00 - Принцип строительства 12:05 - Сравнение петербургской башни с токийской и дубайской 12:48 - Фасад 13:00 - Количество стекла 14:16 - Экологичность и безопасность 15:22 - Системы антиобледенения 15:50 - Атриум 16:20 - Зеленые технологии 17:54 - Новый символ Санкт-Петербурга Мы во всех соцсетях: ТЕХНОНИКОЛЬ. Эксперт: Вконтакте: https://vk.cc/aBW4fj Facebook: https://www.facebook.com/unsupportedbrowser Instagram: https://www.facebook.com/unsupportedbrowser Telegram: https://t.me/technonicol_expert ТЕХНОНИКОЛЬ. Строим вместе: Вконтакте: https://vk.cc/aBW43R Instagram: https://www.facebook.com/unsupportedbrowser «Одноклассники»: https://ok.me/IpvC Telegram: https://t.me/technonicol_tg TikTok: https://www.tiktok.com/@technonicol.corp YouTube ТЕХНОНИКОЛЬ: https://www.youtube.com/user/TechnoNICOLive
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The most convenient way is to use the UDL Client program, which supports converting video to MP3 format. In some cases, MP3 can also be downloaded through the UDL Helper extension.
How can I save a frame from a video "МегаСтройки — «Лахта-Центр», Санкт-Петербург, небоскрёб на болоте"?
This feature is available in the UDL Helper extension. Make sure that "Show the video snapshot button" is checked in the settings. A camera icon should appear in the lower right corner of the player to the left of the "Settings" icon. When you click on it, the current frame from the video will be saved to your computer in JPEG format.
What's the price of all this stuff?
It costs nothing. Our services are absolutely free for all users. There are no PRO subscriptions, no restrictions on the number or maximum length of downloaded videos.