Презентация на тему Bridges through Neva river

with
stages of construction and
shape such bridges through
the Neva river as
the

Blagoveshchensky Bridge,
the Dvortsovy Bridge and
theTroitsky Bridge.

differs
the water spaces connected by wide bridges.
Without them it

is difficult to imagine life of the
huge city, its unique, fine shape. St. Petersburg
has got more bridges than such known cities, as
Venice, Stockholm and Amsterdam. Only in the
central part of the city there are 315 bridges, and
in modern borders - more than 500 were built. The
biggest are located on the Neva. They combine high
engineering qualities with remarkable architectural
registration.

1843 to 1850.
The project of the constant
bridge through Neva

was
developed by talented engineer
S.V.Kerbedz.

The Blagoveshchensky Bridge is located in the
bottom of current of the Big Neva, and that
bridge is really unique. The Blagoveshchensky
bridge is the first constant bridge through the
Neva. First Bridge through the Neva appeared
at the time of Anna Ioannovna. In that period
of time it was possible to make only floating
bridge. The Isaakiyevsky Bridge, connecting
left coast of Neva with the Vasilyevsky island
became first floating bridge. And only in the
middle of the XIX century became possible to
construct the constant bridge. 

sink and
a trident – a symbol of
the sea became

an
openwork frame of the
bridge.

The project of a lattice was
created by architect
A.P.Bryullov.

name. In the middle of the 19th century he
received

the name from the church, which was nearby .
But in a year it was renamed in Nikolaevsky, and after
revolution it was called a name of lieutenant Peter
Schmidt, the head of revolt on the cruiser "Ochakov".
After reconstruction in 2007 to the bridge returned the
historical name –Blagoveshchensky.

bridge was reconstructed, the condition of its adjustable
span ,which

wasn't meeting conditions of navigation across the Neva served. Besides, that adjustable
span was not on the river middle, and at a right-bank abutment where depth didn't allow to pass to the
big ships. The bridge of Lieutenant Schmidt was reconstructed according to the project of professor
Grigory Petrovitch Peredery. Under his management reorganization in 1938 was carried out also. The
new construction was received absolutely other composition and architectural shape. On change to the
bridge possessing original, it is thin the executed longitudinal façade with easy arch spans, the
construction, isn`t in harmony with a surrounding architectural complex came.  Need of economy of
means and reduction of terms of construction works generated idea of use of the old support blocked by
joist spans.Thus the new bridge was the effective engineering decision for that period of time.

the
Admiralty and the University
embankments. In the middle of
the XIX

century, after
construction of the first
constant bridge through the
Neva (the Blagoveshchensky
bridge), here – to the Winter
palace floating the Isaakiyevsky
Bridge, which connected the
Universitetskaya Embankment
with the Senate Square earlier
was moved.

It was reconstructed according
the project of engineer
I.K.Gerard and gave it a new
name - Dvortsovy, thanks to
the Winter palace which is in
close proximity.

creation of a constant bridge
which would connect the
Vasilyevsky island

and the
Admiralty party. The decision on
replacement of floating the
Dvortsovy Bridge on the constant
made in 1900.

Construction began in 1912
according to A.P.Pshenitsky's
project. In bridge design as took
part L.N.Benoa, R.F.Melzer,
M. M.Peretyatkovich.

from the engineering
point of view among all bridges through

the Neva. There were
interruptions in financing because in August, 1914 World War I began.
As a result construction of Dvortsovy Bridge was carried out by the
slowed-down rates. Movement on the Dvortsovy Bridge was opened
only in 1916, but also then its decorating wasn't complete yet. By this
time were established only temporary wooden a flooring and handrails. 

Republican Bridge. The former name was
returned to it in

1944. In 1939 wooden protections
of the bridge were replaced cast iron with
the Soviet symbolics. In 1977 in time reconstruction
lamps, a flooring, adjustable part were
changed. And in a year removed tram ways. Total
length of the Dvortsovy Bridge makes today
260 m, and width nearly 28 m. The divorced wings
of the Dvortsovy Bridge are one of symbols
of St. Petersburg.

part of St.
Petersburg and the
Petrogradskay part. At once

at
the bridge, to the
Petrogradskskay part, the known
Museum of history of St
. Petersburg
"The Peter and Paul Fortress". TheTroitsky Bridge by right settles
down it is considered one of the most beautiful bridges of St.
Petersburg. Openwork registration of the bridge connects majestic
imperial style and severity of engineering standards. Separate art
value to the Troitsky Bridge is given by lattices, gracefully unique with
metal arch farms of flights of a crossing.

the third
constant bridge.Through the Neva in St.Petersburg.
In day

of celebration of the 200 anniversary of
St.Petersburg was Troitsky Bridge was opened. .
Competition on the best project was held. The
project of French architect Eyfel won in that
competition . Construction of the bridge was
entrusted the French firm "Batinyol".

the
name more than once
received from the Troitsky

cathedral. In 1918 the
bridge was called as
the Bridge of Equality , then
the Kirovsky Bridge.
On October 4, 1991 to the
bridge returned the
historical name - Troitsky Bridge. Before creation of the Alexander
Nevsky Bridge. The Troitsky Bridge was considered as the longest in
St.Petersburg.
On an axis of the Troitsky Bridge passes the Pulkovsky meridian - a zero
meridian, which used the Russian cartographers before the beginning of
the XX century, to transition to the Greenwich meridian.

Valery
Tchkalov made the
impudent flight under the
Troitsky Bridge. Later, in
1940,

for the biographic
movie "Valery Tchkalov“
pilot Evgeny Borichenko
repeated flight under the
bridge six times.

was
exposed more than once to aim
bombing, however practically
didn't suffer.

In 1955 was restoration of
obelisks at entrance on the bridge
made from the Field of Mars.
Two-headed eagles and crowns
were replaced with stars and
symbols a sickle and a hammer.
In 2001-2002 serious
reconstruction of the bridge was
carried out during which initial
elements of a decor were restored -
autocracy symbols were returned
on the bridge: two-headed eagles
and crowns.

On the bridge there is a
point indicating its middle. It
is on a handrail in that place
where patterns on a lattice
change the inclination.

bridge you can see a
classical postcard view on the

Spit of Vasilevsky
Island.
From theTroetsky bridge it is possible to see 7
bridges: 1.The Ioannovsky bridge through the Kronverksky channel 2.The Exchange bridge through the Small Neva 3. The Dvortsovy bridge through the Big Neva 4. The Hermitage bridge through the Winter flute 5. The Verhne-Lebayshy bridge through the Lebayshy flute 6.The Prachecny bridge through the Fontanka 7. The Liteyny bridge through the Neva