Hidak Jász-Nagykun-Szolnok megyében (Szolnok, 2000)

Mellékletek

Summary in 1911 when the Gerber-jointed highway truss Tiszabridge was completed similar to the Ferenc József-bridge in Budapest. In 1919, the road and railway Tisza-bridge in Tiszafüred, the railway Tisza-bridge in Kisköre and the Tisza-bridge in Szolnok were blown up. The reconstruction seemed to be a rather hard task. In October 1944, all of the important bridges of the county were blown up. 39 of its 71 bridges were damaged or destroyed, similar serious damages could be observed on railway and local road bridges. Their reconstruction needed extraordinary efforts and the use of various technical Solutions. In Tiszaug, the bridge could be reconstructed in the originál form using partially the wrecks lifted írom the river bed. The other bridges, however, were damaged so severely that the traffic had to use temporary bridge, fighting alsó with icy floods. In the case of the highway bridge in Szolnok half-permament, three-span welded truss beam structure was built using the available tubes. Till 1962, the heavy traffic of the main road no.4 used this bridge. The railway bridge close to Szolnok was totally destroyed (bombing raids, blowings up), so the wrecks had to be raised and the bridge entirely reconstructed till 1947. In Túrkeve, a military temporary Herbert bridge was constructed which was used for nearly 50 years. As special examples of reconstruction, the multi-span Zagyva-bridges in Szolnok and Zagyvarékas using truss beams originating from the Maros-bridge in Apátfalva can be mentioned. After the World War II, new techniques present themselves in reinforced concrete bridge construction: pre- and post-tensioning, as well as prefabrication. In 1951, the overpass of main road no.4 with precast-in-plant Hoyer-beams, then several bridge substructures with reversed T-beams were built. From 1971 on, the girder family (EHGE, EHGT) for spanning more than 10 m has become wide-spread. An early example of prefabrication and post-tensioning is the flood area Tisza-bridge in Szolnok (1962) constructed using longitudinally and transverselly prestressed girders. (The beams were composed of "slices"). The examples of site post-tensioning are the box girder bridge of 30 m in Mezőtúr (1965) and two Gerber-jointed six-span overpasses in Szolnok (1970 and 1973) with somé 30 m spans. Erection with cantilever method was applied in 1975 when the river Hármas-Körös-bridge in Kunszent-márton was constructed with 70 m main span and prefabricated flood area spans in the country for the first time. The flood area spans of the new highway Tisza-bridge in Szolnok with 116 m main span were built using sequential pushing forward in 1988-92. New techniques appeared alsó in steel bridge construction: welding, high-strength screw joint, erection with cantilever method. The highway Tisza-bridge in Szolnok (1962) is our first structure with orthotropic plate. The Tisza-bridge in Tiszafüred was constructed in 1967 using welded, high-strength stressed screw joint and composite structure. Alsó the Hortobágy-Berettyó-bridge should be mentioned which was reconstructed in 1996 using REM 500 military bridge matériái. The Tisza-bridge in Kisköre was reconstructed in 1958, while its flood area spans were rehabilitated in 1976. Composite structure was applied here in railway bridges for the first time in Hungary. In addition to the schematic introduction of somé typical bridge structures, the book presents the national and local highway, as well as railway bridge stock in the county. 102 bridges can be found in the national highway network, 133 managed by municipalities, while agricultural and other plants own 200-300 bridges. There are 134 bridges on railway lines. Several detailed data and photos can be found about these bridge stocks. The description of 25 significant bridges shows their history comprehensively. The book on the county bridges is eighth in the series. It has a rich illustration and is based on originál documents and archives. The main chapters are: geographical features, development of the highway network in the county, review of bridge structures by type: timber bridges, arches, reinforced concrete and steel bridges, bridge reconstruction after 1944, bridges in the art, presentation of the bridge stock (national and local road, agricultural and railway bridges), interesting materials in archives, appendices (designs, register books, photos), individual description of bridges. It was written by István Szecsei, Mihály Szikszai, László Szabó and dr. Ernő Tóth using former investigation of dr. Imre Gáli and the bridge descriptions of Jenő Hargitai. The activity of senior archivist Mihály Szikszai is to emphasized who has investigated systematically the history of various bridges for several years. The publisher's reader was dr Herbert Tráger who carried out his task highly carefully. In addition to the authors, several other colleagues provided considerable help mainly by making available photos, maps and archives. It should be mentioned here among others - Military History Institute and Museum, Traffic Museum, Damjanich Museum in Szolnok, Highway Professional Collection in Kiskőrös, Archives of counties Heves and Jász-Nagykun-Szolnok, design bureaus and construction firms: Ganz Steel Construction Ltd, Bridge Construction Ltd, UVATERV, Pont-TERV Ltd, Scetauroute, General Directorate of MAV (Hungárián State Railways), post card collectors. The publisher of the book is Foto Gruppé Ltd. 168