The imagination is only limited by our intellect and our
reasoning, not by the materials that we use.
(Edición en Español)
(Edición en Español)
Hi, I
love the legends, when I was small I was very fan of Bruce Lee, as you know, the most famous
fighter of martial arts of the history written and televised. But, outside of
the legend, there was an inspiring, honest man and who loved martial arts, to
such an extent that he created one, the Jeet Kune Do. In his honor, and
recalling that he was born in the year of the Dragon and the Dragon hour
(between 5 and 8 in the morning) I decided to put on my list to build my future
(and fabulous) building, the Komodo Island (or island of the Dragon).
When I
was in the Hotel Komodo, a
resort whose specialty is the cruises of diving, on the terrace of the bungalow
where I staying, I remembered that I had heard one thing, in the present
century, have built two bridges of the Dragon, "with than I like the
bridges and I haven't crossed these, one failure for me, Rodolfo!", I
thought and, a few hours after, I was already heading to my first destination:
the Dragon bridge of Alcalá de Guadaira (you know that I don't like very much
to wait).
Always
is a pleasure visit Andalusia, I still remember the last time that I was by the
matter of the Almohad plaster, was a
pleasant surprise to discover that, to some extent, the bridge had a lot to do
with the Almohad style. They built it to
cross the Guadaira River and they called it "The
Guardian of the Castle", obviously because it is in the foothills of
the Castle Hill, whose visit is indispensable if you travel to the place.
It's
the first figurative bridge in Spain and also in Europe. It was designed and
built by the engineers José Luis Manzanares Japón and Iñigo Barahona Fernández,
which they presented their design to a competition organised by the Government
of Andalusia, but whose final election was passed by the hands of the citizens
of the population, a kind of voting convened by the council of Alcala de
Guadaira which obtained (nothing more and nothing less than) 95% of the votes:
they won.
Its
inauguration occurred on March 28 in 2007. The
bridge has a length of 123 meters and a width of 22.6 meters where you will
find four roads (two of exit and two back) and two sidewalks. The beauty of
the construction is indisputable, as well as its simplicity in what refers to
structural performance, of course, a central beam supported on three pillars
and two extreme which have the walkways in cantilevered.
All the
arches are clad of trencadis of
ceramic with multiple colors, simulating the skin of the Dragon, as had the own
Gaudí, in Barcelona, in total they covered a surface of 4,500 square meters by
this system. By the way, without the Gaudí master, it may not be understood
the architecture current, this man was so important. The Dragon looks with hate who
dares to cross the River in direction to the Castle, his open mouth threatens
with devour you, and if you manage to escape, the queue wait for you on the
other side of the bridge. Maybe don't believe me, but I almost weep of
emotion while I contemplated this beautiful work.
The
distance between the supports of the Central arches is 43 meters each, the end
support is only 18 m. For the stability of slabs, the pressurising system was
used which ensures the enough tension at the ends that flying, this reduces
their singing to 21 centimetres, being the width in its axis of 1.21 meters, as
if they were wings of a "mythological
animal". The body of the dragon
have two meters wide transmitting the loads to the ground with 12 piles of reinforced
concrete of 1,500 mm of diameter and 20 meters deep, which are anchored to one
pile of great thick (this pile is a foundation whose function is to pass the
burden of the structural element to the micro piles).
The Ulma company was
contracted to carry out the scaffolding on which carry out the construction
process, and the Valero Group was
responsible for the creation of the mould of EPS (expanded
polystyrene) for concreting the central structure of the dragon,
as well as the specials parts for their ends (head and tail). The concrete
poured, because of the shape of the structure had to be self-consolidating,
this concrete does not need vibrated and not is segregated, so we can pour into
the interior of a formwork with security of that the mass will be well distributed, I do not
know how we have been able to build without it until today.
Now we let
Seville to go to Viet Nam, whose region is not unknown, do you remember when we
were in a bar of bamboo? I
called it "The path of the Dragon" and you can walk its 14.764 kilometres
of separation in 180 hours if you go by car (a little more if you decide to
rest) or take a plane and save 160 hours. The second bridge of the Dragon lies
on the river Han, in the city of Da Nang, and it has been baptized with the
name of Rong.
Some
persons says that its designers, Amman and Whitney Consulting Engineers of Louis Berger Group, were based on
"the Guardian of the Castle" for the project, personally, I don't
think so, even though of the parallelism must be taken into account that the
Vietnamese culture is very attached to this mythological animal, in fact, the
bridge has shape of Shenglong , a dragon of the Ly dynasty. In addition, the
city (one of the most prosperous of the country) is called the "city of
bridges". Its construction began in 2009 and opened on 5 April of 2013.
It is a cable-stayed bridge, which
simulates (obviously) a dragon, it meanders in such a way that the lower part
becomes the bridge columns and the upper part serves for the structure of
cable-stayed. Its main body is constructed in steel and weighs
9,000 tons. Crosses a distance of 666 metres, has 36 meters wide and houses six
lanes and two walkways.
The
budget was of 85 million dollars (76 million euros) and pays homage to the 38
anniversary of the liberation of the city. It has installed 2,500 Led (always
led) lights that illuminate the bridge with different colours. But the biggest
attraction that I have found is in its powerful mouth of Dragon, which is able
to eject (normally Saturdays and Sundays at 21:00) jets of fire and water,
impressive.
I don't
have to explain that the two bridges have become, for different reasons, in two
spectacular rides and tourist reclamations for their respective localities, it
is commendable that the administration use the theatrics or the figuration to
make fantastic works of engineering. For
my part, I have decided that, in my building, I will include a swimming pool
with a bridge, you not need that I tell the form of my bridge. Bye bye.
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