Details
| Original language | English |
|---|---|
| Pages (from-to) | 625-634 |
| Number of pages | 10 |
| Journal | Structural Concrete |
| Volume | 19 |
| Issue number | 2 |
| Publication status | Published - 24 Apr 2018 |
Abstract
This article deals with the challenges of semi-integral construction of long viaducts. The main characteristic of semi-integral bridges is the monolithic connection of most parts of the substructure with the superstructure. This leads to complex load-bearing behavior, in which several structural components interact with each other. Because of the longitudinal movement of the superstructure, constraint forces and moments occur in the piers. They induce additional stresses in the structure compared to conventionally supported bridges. An important issue during the design process is the choice of the pier cross section. The stiffness and ductility of the piers influence the constraint moments and failure behavior of the pier. This is the reason why the detailed investigation into the influencing parameters (normal-force utilization, reinforcement ratio, and width-to-height ratio) described in this paper was carried out. In this investigation, the moment–curvature relationship was used and the failure behavior as well as the constraint moments in the structure were evaluated.
Keywords
- load-bearing behavior, moment–curvature relationship, normal force, piers, reinforcement ratio, semi-integral bridges, stiffness decrease, width-to-height ratio
ASJC Scopus subject areas
- Engineering(all)
- Civil and Structural Engineering
- Engineering(all)
- Building and Construction
- Materials Science(all)
- General Materials Science
- Engineering(all)
- Mechanics of Materials
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In: Structural Concrete, Vol. 19, No. 2, 24.04.2018, p. 625-634.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Criteria and influencing parameters for the design of piers of semi-integral bridges
AU - Gebauer, Daniel
AU - Stümpel, Marina
AU - von der Haar, Christoph
AU - Marx, Steffen
N1 - Publisher Copyright: © 2017 fib. International Federation for Structural Concrete
PY - 2018/4/24
Y1 - 2018/4/24
N2 - This article deals with the challenges of semi-integral construction of long viaducts. The main characteristic of semi-integral bridges is the monolithic connection of most parts of the substructure with the superstructure. This leads to complex load-bearing behavior, in which several structural components interact with each other. Because of the longitudinal movement of the superstructure, constraint forces and moments occur in the piers. They induce additional stresses in the structure compared to conventionally supported bridges. An important issue during the design process is the choice of the pier cross section. The stiffness and ductility of the piers influence the constraint moments and failure behavior of the pier. This is the reason why the detailed investigation into the influencing parameters (normal-force utilization, reinforcement ratio, and width-to-height ratio) described in this paper was carried out. In this investigation, the moment–curvature relationship was used and the failure behavior as well as the constraint moments in the structure were evaluated.
AB - This article deals with the challenges of semi-integral construction of long viaducts. The main characteristic of semi-integral bridges is the monolithic connection of most parts of the substructure with the superstructure. This leads to complex load-bearing behavior, in which several structural components interact with each other. Because of the longitudinal movement of the superstructure, constraint forces and moments occur in the piers. They induce additional stresses in the structure compared to conventionally supported bridges. An important issue during the design process is the choice of the pier cross section. The stiffness and ductility of the piers influence the constraint moments and failure behavior of the pier. This is the reason why the detailed investigation into the influencing parameters (normal-force utilization, reinforcement ratio, and width-to-height ratio) described in this paper was carried out. In this investigation, the moment–curvature relationship was used and the failure behavior as well as the constraint moments in the structure were evaluated.
KW - load-bearing behavior
KW - moment–curvature relationship
KW - normal force
KW - piers
KW - reinforcement ratio
KW - semi-integral bridges
KW - stiffness decrease
KW - width-to-height ratio
UR - http://www.scopus.com/inward/record.url?scp=85045908327&partnerID=8YFLogxK
U2 - 10.1002/suco.201700087
DO - 10.1002/suco.201700087
M3 - Article
VL - 19
SP - 625
EP - 634
JO - Structural Concrete
JF - Structural Concrete
SN - 1464-4177
IS - 2
ER -