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Analytical and experimental investigations on the introduction of compressive loads in thin walled elements made of UHPFRC by the use of implants

, und . 3rd International Symposium on Ultra High Performance Concrete and Nanotechnology for High Performance Construction Materials, HiPerMat 2012, March 7-9, 2012, Kassel, Seite 773--780. Kassel, Kassel University Press, (2012)

Zusammenfassung

Ultra-High-Performance Fiber Reinforced Concrete (UHPFRC) has advantageous structural and aesthetical properties that enable a wide range of practical applications 1. Its given high compressive strength, almost free formability and potential application without any traditional reinforcement allows for the design of thin walled structural elements. Connecting these elements on site requires the development of new construction techniques. The authors are developing a construction method which allows thin walled elements to be point connected by means of so called implants. Design basis for the implants so far is the transfer of high local compressive loads. Thus, the utilization of bearing capacity in the connecting point by a homogeneous introduction of stresses becomes the main design issue. Based on a first implant design 2,5, further analytical and experimental investigations were carried out. Different effects on the stiffness, size, form and geometry of implant components were analysed and are presented in this paper.

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