A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Seismic Performance of Precast Segmental Bridge Columns on the Basis of Bouc-Wen Hysteresis Model
In order to study the seismic performance and hysteresis behavior of precast segmental columns, the Bouc-Wen hysteresis model was improved, considering the strength degradation, stiffness degradation and pinching effect of precast segmental columns. By reasonably selecting the parameters, hysteretic curves of different shapes were obtained to simulate the nonlinear hysteresis characteristics of the piers in actual engineering. Three circular section columns with a scale ratio of 1:3.5 were tested under quasi-static cyclic loading to determine the control parameters that affect the hysteresis characteristics of the model, which are monolithic reinforced concrete columns (MRC), unbonded prestressed precast segmental columns (PSC) and unbonded prestressed precast segmental columns with energy dissipation bars (PSCE). Finally, the Simulink module in Matlab was used to solve the differential equations, and the three tested specimens were simulated respectively. The predicted results were in good agreement with the force-displacement hysteretic curves obtained by the quasi-static test, which proves the improved hysteresis model proposed in this paper can accurately predict the nonlinear hysteretic response of precast segmental columns under cyclic loading protocols.
Seismic Performance of Precast Segmental Bridge Columns on the Basis of Bouc-Wen Hysteresis Model
In order to study the seismic performance and hysteresis behavior of precast segmental columns, the Bouc-Wen hysteresis model was improved, considering the strength degradation, stiffness degradation and pinching effect of precast segmental columns. By reasonably selecting the parameters, hysteretic curves of different shapes were obtained to simulate the nonlinear hysteresis characteristics of the piers in actual engineering. Three circular section columns with a scale ratio of 1:3.5 were tested under quasi-static cyclic loading to determine the control parameters that affect the hysteresis characteristics of the model, which are monolithic reinforced concrete columns (MRC), unbonded prestressed precast segmental columns (PSC) and unbonded prestressed precast segmental columns with energy dissipation bars (PSCE). Finally, the Simulink module in Matlab was used to solve the differential equations, and the three tested specimens were simulated respectively. The predicted results were in good agreement with the force-displacement hysteretic curves obtained by the quasi-static test, which proves the improved hysteresis model proposed in this paper can accurately predict the nonlinear hysteretic response of precast segmental columns under cyclic loading protocols.
Seismic Performance of Precast Segmental Bridge Columns on the Basis of Bouc-Wen Hysteresis Model
Ye, Hanhui (author) / Bu, Zhanyu (author)
2020-01-01
666286 byte
Conference paper
Electronic Resource
English
Seismic Performance of Segmental Precast Unbonded Posttensioned Concrete Bridge Columns
| British Library Online Contents | 2007
Seismic Performance of Segmental Precast Unbonded Posttensioned Concrete Bridge Columns
| British Library Conference Proceedings | 2007
Seismic Performance of Segmental Precast Unbonded Posttensioned Concrete Bridge Columns
| Online Contents | 2007
Investigation of the seismic performance of precast segmental tall bridge columns
| British Library Online Contents | 2012
Seismic Performance of Precast Segmental Bridge Superstructures
| British Library Conference Proceedings | 2001