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  4. Tragverhalten von Stahlbetontragwerken ohne Querkraftbewehrung unter Ermüdungsbeanspruchungen
 
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Tragverhalten von Stahlbetontragwerken ohne Querkraftbewehrung unter Ermüdungsbeanspruchungen

Citation Link: https://doi.org/10.15480/882.1211
Publikationstyp
Doctoral Thesis
Date Issued
2015
Sprache
German
Author(s)
Kohl, Matthias  
Advisor
Rombach, Günter A.  
Referee
Maurer, Reinhard  
Title Granting Institution
Technische Universität Hamburg
Place of Title Granting Institution
Hamburg
Examination Date
2014-12-11
Institut
Massivbau B-7  
TORE-DOI
10.15480/882.1211
TORE-URI
http://hdl.handle.net/11420/1213
First published in
Schriftenreihe des Instituts für Massivbau der TUHH  
Number in series
10
The present paper examines the load bearing characteristics of RC structures without web reinforcement under cyclic loads. New design approaches as well as increasing loads and load frequencies are responsible for it. These circumstances are related to concrete bridges, for example. Statistical evaluations of existing tests have shown deficits in the current design approach (Eurocode 2). Therefore, theoretical, experimental and numerical studies will be
conducted within this paper. They are intended to give a better understanding of the load transfer in RC members without web reinforcement. As a result of the studies, the design of concrete to resist fatigue due to shear according to Eurocode 2, Eq. 6.78 as well as the representation by means of a Goodman diagram can be confirmed, if the shear bearing capacity is known. Furthermore, the following conclusions can be drawn:
1. The compression zone is the dominating mechanism of RC elements without shear reinforcement to carry the shear load; its contribution is at least 60 %.
2. The failure mechanism, which have been observed by MUTTONI in 1990, can also be seen in the Hamburg test series. However, there exists another failure mechanism in the area of the support.
3. The fatigue-damage model developed by PFANNER is a helpful tool to simulate the behavior under cyclic shear loads by using the Finite Element Method.
DDC Class
720: Architektur
Funding(s)
Ermüdungsfestigkeit zyklisch beanspruchter Stahlbetonbauteile ohne Querkraftbewehrung  
Lizenz
http://doku.b.tu-harburg.de/doku/lic_ohne_pod.php
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