Podolsko Bridge
Encyclopedia
The Podolsko Bridge is an arch bridge
that spans the Vltava
between Podolsko and Temešvár in Písek District
, Czech Republic
. At the time of its completion in 1949, it was the longest arch bridge in Czechoslovakia.
Design was by the Ministry of Public Works. Experimental Stress Analysis photoelasticity
was by Professor J. J. Polivka of the University of California. Professor J. J. Polivka Jaroslav Joseph Polivka
performed structural analysis photoelasticity
for Frank Lloyd Wright
's proposed Butterfly Concrete Arch Bridge of 1000-ft span Southern Crossing across San Francisco Bay between the San Francisco Airport and Oakland, California Airport [PAGE 103] reference 2. Jaroslav Joseph Polivka
(Jaroslav Josef Polívka) (20 April 1886 – 9 February 1960), Czech structural engineer who collaborated with Frank Lloyd Wright between 1946 and 1959. They reference, endorsed and photographed each other in their writings.
Frank Lloyd Wright
, Eduardo Torroja
and J. J. Polivka shared ideas, and were in communication with each other. All three endorsed each others idea and work.
After the Orlík Dam
was completed in 1961, the Vltava rose 19 meters and covered part of the supports.
References
"Contractor Meets Close Design Tolerances in Building Long-Span Concrete Arch Bridge" J. J. Polivika , Civil Engineering , ASCE American Society of Civil Engineers
January 1949
Philosophy of Structures By Eduardo Torroja [ English Version by J. J. Polivka and Milos Polivka ] (Figure 14:10b, page 221), University of California Press, Berkeley and Los Angeles, inconjuction with Cambridge University Press, 366 pages
Arch bridge
An arch bridge is a bridge with abutments at each end shaped as a curved arch. Arch bridges work by transferring the weight of the bridge and its loads partially into a horizontal thrust restrained by the abutments at either side...
that spans the Vltava
Vltava
The Vltava is the longest river in the Czech Republic, running north from its source in Šumava through Český Krumlov, České Budějovice, and Prague, merging with the Elbe at Mělník...
between Podolsko and Temešvár in Písek District
Písek District
Písek District is a part of the South Bohemian Region of the Czech Republic. Its centre is Písek. It has around 70,000 inhabitants and area of 1,138.13 km². People density is 62 heads per 1 km². In this region we can find 71 villages and 5 towns...
, Czech Republic
Czech Republic
The Czech Republic is a landlocked country in Central Europe. The country is bordered by Poland to the northeast, Slovakia to the east, Austria to the south, and Germany to the west and northwest....
. At the time of its completion in 1949, it was the longest arch bridge in Czechoslovakia.
Design was by the Ministry of Public Works. Experimental Stress Analysis photoelasticity
Photoelasticity
Photoelasticity is an experimental method to determine the stress distribution in a material. The method is mostly used in cases where mathematical methods become quite cumbersome. Unlike the analytical methods of stress determination, photoelasticity gives a fairly accurate picture of stress...
was by Professor J. J. Polivka of the University of California. Professor J. J. Polivka Jaroslav Joseph Polivka
Jaroslav Joseph Polivka
Jaroslav Joseph Polivka , Czech structural engineer who collaborated with Frank Lloyd Wright between 1946 and 1959....
performed structural analysis photoelasticity
Photoelasticity
Photoelasticity is an experimental method to determine the stress distribution in a material. The method is mostly used in cases where mathematical methods become quite cumbersome. Unlike the analytical methods of stress determination, photoelasticity gives a fairly accurate picture of stress...
for Frank Lloyd Wright
Frank Lloyd Wright
Frank Lloyd Wright was an American architect, interior designer, writer and educator, who designed more than 1,000 structures and completed 500 works. Wright believed in designing structures which were in harmony with humanity and its environment, a philosophy he called organic architecture...
's proposed Butterfly Concrete Arch Bridge of 1000-ft span Southern Crossing across San Francisco Bay between the San Francisco Airport and Oakland, California Airport [PAGE 103] reference 2. Jaroslav Joseph Polivka
Jaroslav Joseph Polivka
Jaroslav Joseph Polivka , Czech structural engineer who collaborated with Frank Lloyd Wright between 1946 and 1959....
(Jaroslav Josef Polívka) (20 April 1886 – 9 February 1960), Czech structural engineer who collaborated with Frank Lloyd Wright between 1946 and 1959. They reference, endorsed and photographed each other in their writings.
Frank Lloyd Wright
Frank Lloyd Wright
Frank Lloyd Wright was an American architect, interior designer, writer and educator, who designed more than 1,000 structures and completed 500 works. Wright believed in designing structures which were in harmony with humanity and its environment, a philosophy he called organic architecture...
, Eduardo Torroja
Eduardo Torroja
Eduardo Torroja y Miret, was a Spanish structural engineer, pioneer in the design of concrete-shell structures. His first large project was the Tempul cable-stayed aqueduct in 1926, Guadalete, Jerez de la Frontera, in which he used prestressed girders, and he made his name with the concrete...
and J. J. Polivka shared ideas, and were in communication with each other. All three endorsed each others idea and work.
After the Orlík Dam
Orlík Dam
The Orlík Dam is the largest hydroelectric dam in the Czech Republic. It dams the Vltava River near the village of Solenice, which is near the town of Příbram. The structure is named after a chateau, which is situated a few kilometers above the dam...
was completed in 1961, the Vltava rose 19 meters and covered part of the supports.
References
"Contractor Meets Close Design Tolerances in Building Long-Span Concrete Arch Bridge" J. J. Polivika , Civil Engineering , ASCE American Society of Civil Engineers
American Society of Civil Engineers
The American Society of Civil Engineers is a professional body founded in 1852 to represent members of the civil engineering profession worldwide. It is the oldest national engineering society in the United States. ASCE's vision is to have engineers positioned as global leaders who strive toward...
January 1949
Philosophy of Structures By Eduardo Torroja [ English Version by J. J. Polivka and Milos Polivka ] (Figure 14:10b, page 221), University of California Press, Berkeley and Los Angeles, inconjuction with Cambridge University Press, 366 pages