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This was before the total construction costs of major Nodeul Island plans were announced.

At that time , after looking at the key details of the soundscape, I decided that there was ample room for cost increases.

Sure enough, I never thought the amount would exceed 1 trillion.

This amount is comparable to the Hamburg Elf Philharmonic.

So what part of the soundscape contributed significantly to the increase in cost?

I am not an architecture student or expert,

We will try to guess the cause of the cost increase based on the facts known to date.

1. The factors that will increase the cost are usually inside the retaining wall.

If you look at the main structure of Nodeul Island, most of the main observatories are located inside the concrete retaining wall.

In the case of other waterfront spaces,

Sandy beach (in winter, skating rink site is also in charge), floating greenhouse, art wall, wetland, dock, sunset floating stage, floating restaurant, floating riverside swimming pool, etc. lim.

Even if you add them all together, it will not exceed 1 trillion won.

Therefore, it would be reasonable to assume that the culprit behind the 1 trillion won is the facilities inside the concrete retaining wall.

If so, I will list the facilities inside the retaining wall that have the potential to increase costs.

2. Inside the retaining wall 1: Observation deck

The main feature of the soundscape is located in this observatory.

On top of the observatory, there is a 1.5 km long, 90,000 square meter garden and seven internal facilities, including a public outdoor stage, a restaurant or cafe, a practice room, a studio, an exhibition space, and a room of silence.

The observatory containing these various facilities has a structural design similar to that of a bridge.

It consists of concrete pillars like the bridges over the Han River and a steel frame like the bridges over the Han River.

Here, several cores in the form of steps support the sides of the observatory to reduce eccentric loads caused by earthquakes or wind.

So why was the bridge singled out as the cause of rising costs?

That's because Thomas Heatherwick himself said that bridges are expensive. lim.

Although the statement was made to the effect that additional pedestrian bridges would cost a lot of money,

To interpret it differently This means that observatories and staircase cores, which are similar to bridges, also contribute to the increase in costs.

The image is Location of pile foundation installed in the lower part of Nodeul Island lim. here There are 43 observatory cores alone., There are 13 stepped cores.. A total of 56 cores is installed.

Additionally, the shape of the observatory looks completely different from the shape of a typical bridge.

Completing this deconstructive form with a steel frame is expected to be more difficult than the existing bridge technology.

So let's summarize.

Bridge construction costs a lot of money + Observation decks are no different from bridges + 56 pile cores + Highly difficult steel structure

=Rising cost

3. Retaining wall interior 2: Stainless steel finish

Another feature of the observatory is its lower part.

Changes in the surrounding environment other than the ground are reflected as is. Mirror-like exterior finish Make the images of this soundscape surreal.

However, the results of this stainless steel finish vary greatly depending on the quality of construction.

A representative example is Chicago's Cloud Moon and Jean Nouvel's Philharmonie de Paris Examples include:

Cloud Moon is probably the most famous of the most surreal art installations installed in the city.

The initial cost of this art installation was 8.6 billion won It was, but Ultimately 30 billion won This has been calculated.

The reason is simple.

This is because a huge amount of money and time were needed to polish the stainless steel exterior finish to a smooth finish.

The image is from 2004 when it first opened.

The seams of the exterior finishing material inside the cloud door are clearly visible.

2 years since opening To make the joints of this stainless steel neat Workers manually scrubbed to remove seams. Go confess.

Even after that, the lower part of the installation art was Cleaning twice a day Proceed with Keep clean by wiping with liquid cleaner twice a year It is said that efforts are being made to

However, thanks to Chicago citizens, they are able to own these wonderful cultural and artistic works as city assets.

Who can deny that the cloud gate is another symbol of Chicago's city image?

As an example of the opposite Philharmonie de Paris Examples include:

In the original plan, it was supposed to resemble a smooth mirror as it was a part of the finishing material of the performance hall.

Thankfully, it boasted a deconstructivist yet surreal appearance.

But as you can see, Reality is silver dragon scales instead of smooth mirrors This appears.

Because of this, the Philharmonie de Paris lost its surreal appearance from a bird's eye view and remained a slightly unusual deconstructivist building.

Like this, finishing the exterior with stainless steel is expensive depending on the quality.

Imagine, 43 cloud gates in chicago I am being installed.

30 billion is 43!

1 trillion just by using the calculator It's easy to get over it.

If costs need to be reduced without reducing the size of the soundscape,

We may have no choice but to get rid of stainless steel altogether.

Of course, it is unclear whether 30 billion won per observatory core will actually be calculated.

Isn't that likely to be the case? It's just a guess.

4. Extra: In fact, it was calculated at UK prices?

Among Professor Hyeonjun Yoo's videos, there is a video that picks out the worst buildings.

Among its contents

'If DDP had been built in the UK, the cost would have been five times higher than in Korea.' There was something like this.

That's why I sometimes go ‘Isn’t it calculated based on UK prices?’ Questions sometimes arise.

But I don’t think the city of Seoul missed that.

There are probably people at Seoul City Hall who are more concerned about construction costs than anyone else.

I wonder how I could have missed something like that haha.

Anyway, that's it for the small talk.

In summary, the cause of the cost increase is probably Bridge technology applied to the observatory + exterior finishing It can be assumed that it will be focused on .