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Shear Strength of Reinforced Concrete Members without Transverse Reinforcement A new theoretical model concerning the shear strength of reinforced concrete members without transverse reinforcement is presented, considering free‐bodies unilaterally bounded by a fictitious crack, inclined at π/4 to the tension chord and extending from the tension chord to the compression chord. It is assumed that the shear stress that can be transferred across a crack decreases linearly with the crack width and that the crack width at the level of the tension chord is proportional to the product of the tension chord strain at the crack and the chord distance. This results in a linear‐hyperbolic relationship between the shear strength and the (elastic) tension chord force at the crack, allowing to determine the governing crack location and other relevant quantities via equilibrium considerations. Due to potential strut or arch action for the transfer of loads applied in the vicinity of supports the crack location is somewhat restricted; it is assumed that the corresponding length is equal to twice the chord distance. 相似文献
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In der vorliegenden Arbeit werden theoretische und experimentelle Untersuchungen zur Beschreibung des lokalen und globalen Tragverhaltens von Holz‐Beton‐Verbunddecken, die an der Universität Innsbruck durchgeführt werden, zusammengefasst. Dabei werden auf der Basis eines Versuchsprogrammes Rechenformate zur lokalen Bemessung der einzelnen Verbindungen sowie der gesamten Verbundträger abgeleitet. Design Rules and Details for Construction of Grooves in Timber‐Concrete‐Composite Constructions This article presents a scientific work on timber concrete floor systems with grooves. Experimental and theoretical works done at university Innsbruck are presented in order to describe the local and global behavior of these shear‐connectors. As a result, all relevant parameters as well as design rules are identified. 相似文献
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