000012778 001__ 12778
000012778 005__ 20160920162645.0
000012778 04107 $$aeng
000012778 046__ $$k2016-09-05
000012778 100__ $$aHadl, P.
000012778 24500 $$aSubstitution of steel components by UHPC

000012778 24630 $$n6.$$pInsights and Innovations in Structural Engineering, Mechanics and Computation
000012778 260__ $$bTaylor and Francis Group, London, UK
000012778 506__ $$arestricted
000012778 520__ $$2eng$$aThis contribution presents the current state of the research project Substitution of steel by UHPC. Aim of the project is to develop components of UHPC, which have been made of steel so far. This includes a hollow box girder with a span up to 30 m as well as a UHPC composite column and a UHPC-steel-composite girder with a web of steel and flanges of UHPC. First, the development of a selfcompacting UHPC mixture with a compressive strength >180 MPa after 28 days without heat treatment was required. In combination with prestressing a very good load bearing capacity of the girders will be achieved. Model tests were performed in order to investigate the splitting behaviour in the transfer zone of the pre-stressing force. The test results to date indicate that by using high amounts of steel fibres conventional reinforcement can be avoided. Further, tests to determine the influence of spiral reinforcement on the confinement and load capacity of round UHPC columns have been carried out. The experimental test results demonstrate that the spiral reinforcement and the used steel fibre amount influence the load bearing capacity hardly. However, the ductile behaviour of the structure increases significantly by increasing spiral reinforcement and confinement.

000012778 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000012778 653__ $$a

000012778 7112_ $$aSixth International Conference on Structural Engineering, Mechanics and Computation$$cCape Town, South Africa$$d2016-09-05 / 2016-09-07$$gSEMC2016
000012778 720__ $$aHadl, P.$$iVojvodic, G.$$iKim, H.$$iTue, N.-V.
000012778 8560_ $$ffischerc@itam.cas.cz
000012778 8564_ $$s1969546$$uhttps://invenio.itam.cas.cz/record/12778/files/226.pdf$$yOriginal version of the author's contribution as presented on CD, 226.pdf.
000012778 962__ $$r12552
000012778 980__ $$aPAPER