Details
| Original language | German |
|---|---|
| Pages (from-to) | 788-802 |
| Number of pages | 15 |
| Journal | Beton- und Stahlbetonbau |
| Volume | 118 |
| Issue number | 11 |
| Publication status | Published - 6 Nov 2023 |
Abstract
UHPFRC Precast Segments for Sustainable and Resource-Efficient Concrete Bridge Construction. Many of the concrete bridges currently in use in Germany are in a deficient condition due to their age or design. However, increased traffic loads also highly contribute to the fact that many of the existing bridges will have to be replaced in the medium term. Due to the many advantages of concrete structures, it can be assumed that concrete bridges will continue to be designed and built in the future. In the light of the increasing consequences of climate change and the pressing need to reduce CO2 emissions also in the building industry as well, there is an urgent need for research into climate- and resource-friendly as well as sustainable but also economical concrete construction methods. A promising approach to fast, effective and resource-optimized as well as CO2-efficient construction is the use of high-performance materials such as UHPFRC in combination with precast segmental construction. In this paper, starting from a monolithic box girder bridge made of normal strength concrete, numerical calculations are used to investigate how much material can be saved in segmented box girder bridges by varying the concrete compressive strength (normal and high-strength concrete as well as UHPFRC). The life cycle assessment subsequently carried out on this basis for life cycle phases A1 to A3 showed that, when the material is fully utilized, the use of UHPFRC leads to very resource-efficient and sustainable structures compared with normal- and high-strength concretes.
Cite this
- Standard
- Harvard
- Apa
- Vancouver
- BibTeX
- RIS
In: Beton- und Stahlbetonbau, Vol. 118, No. 11, 06.11.2023, p. 788-802.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - UHPFRC-Fertigteilsegmente für einen nachhaltigen und ressourcenschonenden Betonbrückenbau
AU - Wilkening, Marvin
AU - Schack, Tobias
AU - Haist, Michael
AU - Oettel, Vincent
PY - 2023/11/6
Y1 - 2023/11/6
N2 - UHPFRC Precast Segments for Sustainable and Resource-Efficient Concrete Bridge Construction. Many of the concrete bridges currently in use in Germany are in a deficient condition due to their age or design. However, increased traffic loads also highly contribute to the fact that many of the existing bridges will have to be replaced in the medium term. Due to the many advantages of concrete structures, it can be assumed that concrete bridges will continue to be designed and built in the future. In the light of the increasing consequences of climate change and the pressing need to reduce CO2 emissions also in the building industry as well, there is an urgent need for research into climate- and resource-friendly as well as sustainable but also economical concrete construction methods. A promising approach to fast, effective and resource-optimized as well as CO2-efficient construction is the use of high-performance materials such as UHPFRC in combination with precast segmental construction. In this paper, starting from a monolithic box girder bridge made of normal strength concrete, numerical calculations are used to investigate how much material can be saved in segmented box girder bridges by varying the concrete compressive strength (normal and high-strength concrete as well as UHPFRC). The life cycle assessment subsequently carried out on this basis for life cycle phases A1 to A3 showed that, when the material is fully utilized, the use of UHPFRC leads to very resource-efficient and sustainable structures compared with normal- and high-strength concretes.
AB - UHPFRC Precast Segments for Sustainable and Resource-Efficient Concrete Bridge Construction. Many of the concrete bridges currently in use in Germany are in a deficient condition due to their age or design. However, increased traffic loads also highly contribute to the fact that many of the existing bridges will have to be replaced in the medium term. Due to the many advantages of concrete structures, it can be assumed that concrete bridges will continue to be designed and built in the future. In the light of the increasing consequences of climate change and the pressing need to reduce CO2 emissions also in the building industry as well, there is an urgent need for research into climate- and resource-friendly as well as sustainable but also economical concrete construction methods. A promising approach to fast, effective and resource-optimized as well as CO2-efficient construction is the use of high-performance materials such as UHPFRC in combination with precast segmental construction. In this paper, starting from a monolithic box girder bridge made of normal strength concrete, numerical calculations are used to investigate how much material can be saved in segmented box girder bridges by varying the concrete compressive strength (normal and high-strength concrete as well as UHPFRC). The life cycle assessment subsequently carried out on this basis for life cycle phases A1 to A3 showed that, when the material is fully utilized, the use of UHPFRC leads to very resource-efficient and sustainable structures compared with normal- and high-strength concretes.
KW - climate limit state
KW - cross-section optimization
KW - life-cycle-assessment
KW - numerical investigations
KW - resource conservation
KW - segment construction
KW - sustainability
KW - ultra-high-performance fiber-reinforced concrete
UR - http://www.scopus.com/inward/record.url?scp=85174618135&partnerID=8YFLogxK
U2 - 10.1002/best.202300054
DO - 10.1002/best.202300054
M3 - Artikel
AN - SCOPUS:85174618135
VL - 118
SP - 788
EP - 802
JO - Beton- und Stahlbetonbau
JF - Beton- und Stahlbetonbau
SN - 0005-9900
IS - 11
ER -