Details
| Original language | English |
|---|---|
| Pages (from-to) | 1348-1363 |
| Number of pages | 16 |
| Journal | Structural Concrete |
| Volume | 24 |
| Issue number | 1 |
| Publication status | Published - 4 Mar 2023 |
Abstract
Investigations on steel fiber reinforced concrete (RC) beams in torsion show, that the steel fibers positively influence the torsional load-bearing behavior. Since a systematic evaluation of the previously known test results and the derivation of a generally valid design model were lacking until recently, current codes such as Model Code 2010 do not contain any design models for the consideration of the steel fiber load-bearing effect in the torsion design. Due to this, the existing torsion tests on steel fiber RC were summarized in a database. Furthermore, on the basis of the test results and observations, the space truss model developed by Rausch and later refined by Lampert and Thürlimann, among others, was further developed and supplemented by additional longitudinal and transverse steel fiber tension struts. This modified space truss model was validated with the database and shows good to very good predictions to the torsion test data.
Keywords
- concrete, database, RC beam, space truss model, steel fiber, torsion
ASJC Scopus subject areas
- Engineering(all)
- Civil and Structural Engineering
- Engineering(all)
- Building and Construction
- Materials Science(all)
- Engineering(all)
- Mechanics of Materials
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In: Structural Concrete, Vol. 24, No. 1, 04.03.2023, p. 1348-1363.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Steel fiber reinforced RC beams in pure torsion—Load-bearing behavior and modified space truss model
AU - Oettel, Vincent
N1 - Funding Information: Open Access funding enabled and organized by Projekt DEAL.
PY - 2023/3/4
Y1 - 2023/3/4
N2 - Investigations on steel fiber reinforced concrete (RC) beams in torsion show, that the steel fibers positively influence the torsional load-bearing behavior. Since a systematic evaluation of the previously known test results and the derivation of a generally valid design model were lacking until recently, current codes such as Model Code 2010 do not contain any design models for the consideration of the steel fiber load-bearing effect in the torsion design. Due to this, the existing torsion tests on steel fiber RC were summarized in a database. Furthermore, on the basis of the test results and observations, the space truss model developed by Rausch and later refined by Lampert and Thürlimann, among others, was further developed and supplemented by additional longitudinal and transverse steel fiber tension struts. This modified space truss model was validated with the database and shows good to very good predictions to the torsion test data.
AB - Investigations on steel fiber reinforced concrete (RC) beams in torsion show, that the steel fibers positively influence the torsional load-bearing behavior. Since a systematic evaluation of the previously known test results and the derivation of a generally valid design model were lacking until recently, current codes such as Model Code 2010 do not contain any design models for the consideration of the steel fiber load-bearing effect in the torsion design. Due to this, the existing torsion tests on steel fiber RC were summarized in a database. Furthermore, on the basis of the test results and observations, the space truss model developed by Rausch and later refined by Lampert and Thürlimann, among others, was further developed and supplemented by additional longitudinal and transverse steel fiber tension struts. This modified space truss model was validated with the database and shows good to very good predictions to the torsion test data.
KW - concrete
KW - database
KW - RC beam
KW - space truss model
KW - steel fiber
KW - torsion
UR - http://www.scopus.com/inward/record.url?scp=85138499889&partnerID=8YFLogxK
U2 - 10.1002/suco.202200031
DO - 10.1002/suco.202200031
M3 - Article
AN - SCOPUS:85138499889
VL - 24
SP - 1348
EP - 1363
JO - Structural Concrete
JF - Structural Concrete
SN - 1464-4177
IS - 1
ER -