Initial laboratory test of load-bearing shell-shaped TRC structures

Research output: Contribution to book/conference proceedings/anthology/reportConference contributionContributedpeer-review

Abstract

Shell structures are known to be extremely high performing and material efficient. There are numerous
natural examples. But considerable spans have already been mastered with steel reinforced and
prestressed concrete. The idea now to use this positive load-bearing behaviour to be used on a smaller
scale as part of large structures. The thesis is that a thin-walled structure-like design of the solid
component core, for example in slabs, can achieve a significant weight reduction with the same
performance. The preferred material is textile reinforced concrete (TRC), as it can be used to achieve
particularly low layer thicknesses of different geometries.
In the first part of the CRC/TRR 280 project C01 it is planned to develop an analysis method and
software solution appropriate for the design routine of thin-walled structures, first for the general case,
later for shell structures inside building components.
The second part is the performing of laboratory tests, so that the assumed numerical methods and
material models can be checked and calibrated afterwards. The derived results should be used to adjust
the controlling points for the uniaxial description of the concrete and reinforcement composite behaviour
model as well as used Willam–Warnke failure criterion. Also, the recorded deformation and crack
pattern should match the pattern derived in the numerical model. The tests will start with simple
geometries. With each test phase, the complexity of the thin-walled elements will be increased. On the
basis of initial tests which will be presented in the paper, the basic data transfer routines and usage of
the innovative digital fabrication method should be introduced to be used in later stages to reach an
appropriate quality and performance in the manufacture processes of geometrically complicated TRC
thin-walled structures.

Details

Original languageEnglish
Title of host publicationConcrete Innovation for Sustainability
EditorsStine Stokkeland, Henny Cathrine Braarud
Place of PublicationOslo
PublisherNovus Press
Pages675-684
Publication statusPublished - 2022
Peer-reviewedYes

Conference

Title6th fib International Congress
SubtitleConcrete Innovation for Sustainability
Abbreviated titlefib 2022
Conference number6
Duration12 - 16 June 2022
Degree of recognitionInternational event
LocationClarion Hotel The Hub
CityOslo
CountryNorway

External IDs

Scopus 85143905722
ORCID /0000-0002-8976-6680/work/142236485
ORCID /0000-0002-1596-7164/work/142255642

Keywords