2020
DOI: 10.1002/best.202000072
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Betonieren unter Verkehr

Abstract: Die 1974 fertiggestellte Hochstraße Elbmarsch in Hamburg (K20), mit einer Länge von 3,8 km Deutschlands längste Straßenbrücke, wird im Zuge des achtstreifigen Ausbaus der A 7 verbreitert. Dazu wird der Spannbetonüberbau durch Verbundträger ergänzt. Die Fahrbahnplatten der neuen und alten Überbauten werden dabei monolithisch durch einen 50 cm breiten Fugenverguss miteinander verbunden. Ein ca. 100 m langes Teilstück wurde vorab als Pilotmaßnahme realisiert, um die gewählte Konzeption für die Verbreiterung zu er… Show more

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Cited by 4 publications
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“…However, transport authorities, construction companies and engineering firms are aware that traffic induced vibrations might afflict permanent damage to concrete structures when the vibrations take place in a certain time range after concrete casting. Regarding this "critical time range", different values can be found in the literature ranging from 3 to 14 hours [8][7] [1]. Obviously, this depends on the specific hardening process of the concrete used, which is a function of its composition, the temperature, and other parameters.…”
Section: Introductionmentioning
confidence: 99%
“…However, transport authorities, construction companies and engineering firms are aware that traffic induced vibrations might afflict permanent damage to concrete structures when the vibrations take place in a certain time range after concrete casting. Regarding this "critical time range", different values can be found in the literature ranging from 3 to 14 hours [8][7] [1]. Obviously, this depends on the specific hardening process of the concrete used, which is a function of its composition, the temperature, and other parameters.…”
Section: Introductionmentioning
confidence: 99%