Hidak Veszprém megyében (Veszprém, 2008)

Mellékletek

Mellékletek three-spanned Rába and two flood area bridges were completed with a totál span of 237 m on the railway line between Pápa and Csorna in 1896. Presently, the two oldest reinforced concrete bridges are 100-year old small-spanned slab bridges; earlier only somé bridges with "irón inlet" might have constructed since there was no need to a high number of bridge reconstruction due to many arches available. In 1991, two reinforced concrete girder bridges were constructed with 7 + 7 and 6+10+6 m spans near Marcaltő, then two-spanned Gerber-structures were built on the road Zirc-Bakonybél-Nagygyimót. In 1926, the bridge over the railway line near Csehbánya built in 1872 was reconstructed to a reinforced concrete structure. Then, as a part of the major road construction program (started in 1928), several minor bridges, and a structure over a railway line were built on the present main road no. 71. The intemationally recognised Gerber-hinged Sióbridges, among others, the 32 m-spanned in Mezőkomárom were completed in the same period. As a part of the complete reconstruction of the main road no. 8, huge bridge constructions were carried out: two viaducts (Veszprém and Városlőd), six structures over railway lines, several bridges - one of them with two levels - over dirt roads. These bridges were designed by respected engineers as Róbert Folly, Antal Schwertner, Richárd Sabathiel. These reinforced concrete bridges can be considered as remarkable not only by theír sizes (e.g. the large arch span of the viaduct in Veszprém amounts to 45 m) or by their skew (e.g. 28° for the bridge over a railway line near Öskü), but alsó by their up-to-date, ingenious forms: closed frames with a gabarit widening downwards (Szentgál, Városlőd, Tüskevár); highly economic and aesthetic three-spanned disk bridge. During World War II, somé 70 bridges were blown up in the former area of the county. In 1945, somé kinds of provisional structure were built, eventually by ingenious, "brave" methodology, e.g. the wooden structure was placed on the ruins of the minor arch of Veszprémviaduct, while in Marcaltő, the provisional structure was built on piled timber icebreakers. The major final reconstruction of main roads started already in 1946, e.g. the disk bridge over the railway line near Városlőd, and went on alsó in 1947 at a quick pace; among others, one of the arches of Városlődviaduct was reconstructed. In 1948, the damaged small arch in Veszprém and the frame bridge over a railway line at Tüskevár were opened to traffic. In 1949, the highway vehicles could already use the Rába-bridge close to Marcaltő. By 1950, altogether 56 bridges were replaced at the same time, alsó several bridges were repaired, and new bridges were constructed as a part of road rehabilitation works. The war damages were eliminated at Várkesző (Rába-bridge) in 1950, near Ötvös (bridge over railway line) in 1959, and close to Marcaltő (Marcal- and Cigány-canal-bridge) in 1966. There were various novelties in the construction of reinforced concrete bridges after World War II. From 1957 on, the so-called reverse T-beamed bridges were built with 2-10 m spans in 103 locations. In addition, a post-tensioned, experimentál bridge with 15 m span was completed at Apácatorna where several details of post-tensioning were solved. On the road to Tihany harbour, a 10x8 m spanned, special slab bridge was built with variable height and supports in various points in 1961. The slender bridge is economic, aesthetic and innovative. In 1966, the Marcal-bridge with 28 m médium span was completed in Marcaltő. In 1969, a 16+2x19+16 m bridge over a railway line and with stressed structures in the two middle spans at Alsóörs was made. In 1970, a three-spanned bridge over a railway line was built on the main road no. 8, which was stressed by movingthe supports ("pendulum legged"). In 1971, a V-legged box bridge was constructed on the main road no. 71 near Zánka. The 14+2x34+14 m spanned viaduct at Városlőd should be mentioned since it was built using the old, narrow viaduct as a scaffolding support, while the new bridge was utilized for the demolition of the old one. From 1973 on, the members of EHG (prefabricated bridge beam) family suitable for bridging spans above 10 m were utilized in the construction of 12 bridges. Other bridges with precast beams (KCs, UH, UB) were alsó built, and somé bigger monolitical constructions too, e.g. in Öskü, instead of the old bridge over the railway line. This book deals alsó with the bridge foundation problems, the bridges over railway lines, the names of bridges and the bridges in art. In addition, with the 443 bridges of national highway network in county Veszprém, the bridges managed by municipalities are alsó mentioned pointing out the many valuable arches on these roads (Diszel, Örvényes, Pula, Bakonybél, Hajmáskér, Sóly, Szentgál etc.) The readerofthe book can find information on railway bridges, tunnels, special construction technologies liké "pressing through", and briefly on forestry roads. The significant bridges have detailed descriptions; appendices contain maps, registers, bridge pages, rolls, designs, photos, chronological survey, and somé information on designers, contractors, related literature, and summary. Designers, contractors, museums, archives and mainly road operators contributed to the collection of the matériái for the book. Thanks for it. The authors of the book are the engineers András Balogh, Sándor Fonyó, László Gábriel, Csilla Kovács, Klára Gy. Lovassy, dr. Ernő Tóth and archivist Balázs Somfai. The summaries were translated by dr. László Gáspár and dr. Herbert Tráger who acted alsó as a reader of the publication. The book has been published for the 49

th Bridge Engineering Conference. 222 Summary