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Research

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© Daniel Sahm
STB_EMI_Vorspann

Subject areas

Solid construction

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Projects of the Chair of Steel Construction and Composite Steel Construction

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Derivation of the design value of the post-cracking tensile strength for steel fiber-reinforced ultra-high-strength concrete, taking into account the size dependence of the scattering

The aim of the research project is to derive the design value of the post-cracking tensile strength for steel fiber-reinforced ultra-high performance concrete (UHPFRC). By taking into account the size dependence of the scattering, sufficient reliability is to be guaranteed and at the same time the economic efficiency of the construction method is not to be jeopardized.

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Shear cracking tendency and shear load-bearing behavior of prestressed bending beams made of steel fiber-reinforced ultra-high performance concrete

In contrast to reinforced concrete components with shear reinforcement, there is still no generally recognized model for components without shear reinforcement that can be used to consistently capture the load-bearing mechanisms under shear loading. A comparison of different approaches and model concepts shows that the load-bearing components of the uncracked concrete compression zone, from crack interlocking or crack friction and from the dowel effect of the longitudinal reinforcement are interpreted and weighted differently.

Cross-strength design approach for bending beams reinforced with steel fibers and steel bars

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Influence of the method of filling the beam shapes on the homogeneity of the fiber distribution and orientation and the reproducibility of the results of 3-point bending tensile tests on UHPFRC

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Influence of fiber distribution and orientation on the residual flexural tensile strength of ultra-high strength concrete

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Characterization of the orientation of steel fibers in ultra-high-strength concrete by ultrasonic measurement

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Composite in glass-rigid foam-concrete sandwich elements

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Shear force bearing behavior of shear-thin reinforced concrete components without shear reinforcement with a low degree of longitudinal reinforcement

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