Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Time-dependent Behaviour Analysis of Long-span Concrete Arch Bridge
This paper continues the previous study on clarifying the time-dependent behaviour of Beipanjiang Bridge ‒ a reinforced concrete arch bridge with concrete-filled steel tubular stiffened skeleton. The obtained prediction models and the Finite Element Models were used to simulate the long-term behaviour and stress redistribution of the concrete arch bridge. Three-dimensional beam elements simulated the stiffened skeleton and surrounding concrete. Then, a parameters study was carried out to analyse the time-dependent behaviour of the arch bridge influenced by different concrete creep and shrinkage models. The simulation results demonstrate that concrete creep and shrinkage have a significant influence on the time-dependent behaviour of the concrete arch bridge. After the bridge completion, the Comite Euro-International du Beton mean deviation of displacements obtained by 1990 CEBFIP Model Code: Design Code model and fib Model Code for Concrete Structures 2010 model are 3.4%, 31.9% larger than the results predicted by the modified fib Model Code for Concrete Structures 2010 model. The stresses between the steel and the concrete redistribute with time because of the concrete long-term effect. The steel will yield if the fib Model Code for Concrete Structures 2010 model is used in the analysis. The stresses in a different part of the surrounding concrete are non-uniformly distributed.
Time-dependent Behaviour Analysis of Long-span Concrete Arch Bridge
This paper continues the previous study on clarifying the time-dependent behaviour of Beipanjiang Bridge ‒ a reinforced concrete arch bridge with concrete-filled steel tubular stiffened skeleton. The obtained prediction models and the Finite Element Models were used to simulate the long-term behaviour and stress redistribution of the concrete arch bridge. Three-dimensional beam elements simulated the stiffened skeleton and surrounding concrete. Then, a parameters study was carried out to analyse the time-dependent behaviour of the arch bridge influenced by different concrete creep and shrinkage models. The simulation results demonstrate that concrete creep and shrinkage have a significant influence on the time-dependent behaviour of the concrete arch bridge. After the bridge completion, the Comite Euro-International du Beton mean deviation of displacements obtained by 1990 CEBFIP Model Code: Design Code model and fib Model Code for Concrete Structures 2010 model are 3.4%, 31.9% larger than the results predicted by the modified fib Model Code for Concrete Structures 2010 model. The stresses between the steel and the concrete redistribute with time because of the concrete long-term effect. The steel will yield if the fib Model Code for Concrete Structures 2010 model is used in the analysis. The stresses in a different part of the surrounding concrete are non-uniformly distributed.
Time-dependent Behaviour Analysis of Long-span Concrete Arch Bridge
Wang, Yongbao (Autor:in) / Zhao, Renda (Autor:in) / Jia, Yi (Autor:in) / Liao, Ping (Autor:in)
27.06.2019
doi:10.7250/bjrbe.2019-14.441
The Baltic Journal of Road and Bridge Engineering; Vol 14, No 2 (2019): The Baltic Journal of Road and Bridge Engineering; 227-248 ; 1822-4288 ; 1822-427X
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
DDC:
690
Seven-span reinforced concrete arch bridge
| Engineering Index Backfile | 1933
Seven-span reinforced concrete arch bridge
| Engineering Index Backfile | 1933
Time-Dependent Analysis of Long-Span, Concrete-Filled Steel Tubular Arch Bridges
| British Library Online Contents | 2014
Time-Dependent Analysis of Long-Span, Concrete-Filled Steel Tubular Arch Bridges
| Online Contents | 2014