UHPC (Ultra-High Performance Concrete) model

05-Future developments & requests
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Joined: 10 Feb 2020, 07:57

UHPC (Ultra-High Performance Concrete) model

Post by roshen.rj »

Dear developers

There is a lack of a recent type of concrete type that is currently present in the research field. It is called UHPC (Ultra High Performance Concrete). This is vastly used in bridge piers typically as a concrete jacket for strengthening technique. There is no suitable concrete model in Seismostruct to model its properties and behaviour. This type of concrete has strengths exceeding 150 MPa.

The concrete model con_hs programmed by Kappos and Konstantinidis [1999] covers strengths from 50MPa to 120MPa as mentioned in seismostruct help. Also, I would appreciate if you could provide a verification example of using con_hs to validate its high strength properties as I am not able to notice any significant change while incorporating con_hs in some of my models.

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Joined: 06 Jul 2007, 04:55

Re: UHPC (Ultra-High Performance Concrete) model

Post by seismosoft »

Thank you for your recommendation, which we will consider for a new version of SeismoStruct.
Regarding the behaviour of the con_hs, the main difference in the response with respect to the con_ma model is the descending branch (high strength concrete is much more brittle), which is probably why you do not notice any significant difference (if your model does not go deep in the inelastic region).
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