Feasibility Study of Using Engineered Cementitious Composite and High-Strength Bars in Rigid Bridge Piers Based on Seismic Vulnerability Analysis
Joint Authors
Liang, Yan
Li, Jie
Hu, Yuanhong
Yang, Dayu
Feng, Tengda
Tao, Chenchen
Source
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-09-27
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
The main function of pier is to transmit the load from superstructure to foundation reliably.
Under earthquake action, the main failure reason of bridge is the damage of bridge pier.
The application of some high-performance materials is helpful to improve the seismic performance of bridge piers.
Based on seismic vulnerability analysis, this paper studies the feasibility of using engineered cementitious composite (ECC) and high-strength bars in bridge piers.
Taking a rigid pier as an example, a nonlinear numerical model is established by OpenSees software.
The reasonable replacement height of ECC in plastic hinge regions, stirrup ratio of pier section, and replacement rate of high-strength bars are obtained through the seismic performance analysis of the pier.
Then, seismic vulnerability of rigid pier with ECC and high-strength bars is analyzed.
The results show that it is feasible to improve the seismic performance of the piers by using ECC and high-strength bars.
Considering the economic rationality, the replacement height of ECC in plastic hinge regions can be determined according to the curvature change point.
For the rigid pier, the economical and reasonable volume stirrup ratio is 0.78%.
The ultimate curvature of RC/ECC pier bottom increases by 12.4% when the longitudinal bars of the pier are replaced by high-strength bars, and the energy dissipation capacity increases by 22.5% on average.
Compared with the pier’s original design, the exceedance probability of each limit state of the rigid pier with ECC and high-strength bars is significantly reduced.
Its seismic performance is superior, and the risk of seismic damage is significantly reduced.
American Psychological Association (APA)
Li, Jie& Hu, Yuanhong& Yang, Dayu& Feng, Tengda& Liang, Yan& Tao, Chenchen. 2020. Feasibility Study of Using Engineered Cementitious Composite and High-Strength Bars in Rigid Bridge Piers Based on Seismic Vulnerability Analysis. Shock and Vibration،Vol. 2020, no. 2020, pp.1-11.
https://search.emarefa.net/detail/BIM-1212904
Modern Language Association (MLA)
Li, Jie…[et al.]. Feasibility Study of Using Engineered Cementitious Composite and High-Strength Bars in Rigid Bridge Piers Based on Seismic Vulnerability Analysis. Shock and Vibration No. 2020 (2020), pp.1-11.
https://search.emarefa.net/detail/BIM-1212904
American Medical Association (AMA)
Li, Jie& Hu, Yuanhong& Yang, Dayu& Feng, Tengda& Liang, Yan& Tao, Chenchen. Feasibility Study of Using Engineered Cementitious Composite and High-Strength Bars in Rigid Bridge Piers Based on Seismic Vulnerability Analysis. Shock and Vibration. 2020. Vol. 2020, no. 2020, pp.1-11.
https://search.emarefa.net/detail/BIM-1212904
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1212904