Seismic Considerations

Behavior of UHPC Column Subjected to Combined Axial and Lateral Loading

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Abstract

Ultra-High Performance Concrete (UHPC) is a versatile building material as it is characterized by very high compressive strengths reaching 200 MPa (30 ksi), ductile tensile characteristics, and energy absorption. Currently, UHPC is commonly used in small structural applications, such as joints and connections between precast structural elements. However, this material is not widely used in structural elements due to the lack of knowledge of the structural behavior and failure mechanism of these elements. There is a great potential for application of UHPC in full structural elements, e.g. highly stressed compression members of high rise buildings, industrial buildings, bridge columns, and members with high durability requirements in aggressive environmental conditions. This study investigated the behavior of UHPC columns subjected to combined axial and lateral loading. A large-scale UHPC column is tested under axial and quasi-static cyclic lateral loading at the Earthquake Engineering Laboratory at the University of Nevada, Reno. The lateral response of these columns is evaluated for damage progression, failure type, peak strength, and displacement and curvature ductility.

Keywords: large-scale testing, seismic behavior

How to Cite:

Aboukifa, M., Moustafa, M. & Itani, A., (2019) “Behavior of UHPC Column Subjected to Combined Axial and Lateral Loading”, International Interactive Symposium on Ultra-High Performance Concrete 2(1). doi: https://doi.org/10.21838/uhpc.9727