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A platform for research: civil engineering, architecture and urbanism
Effective stress-strain relationship for grouted sleeve connection: Modeling and experimental verification
Highlights Effective stress-strain relationship for the grouted sleeve connections is presented. Transverse pressure influence coefficient exerted by the sleeve coupler was modeled. The performance of prefabricated piers under cyclic loading was tested. The proposed model was verified by using the connection test and pier test. The proposed model can be implemented in 1D, 2D, and 3D finite element analysis.
Abstract This paper describes the development of an effective stress-strain relationship model for grouted sleeve connections. The transverse pressure influence has been calibrated by using the local bond stress-slip experiment including the effect of the initial construction error of the reinforcing bar. Then, the proposed effective stress-strain model was presented by solving the governing equation of the bond stress-slip behavior for the long-bonded grouted sleeve connection. The grouted sleeve connection can be equivalent to a reinforcing bar with a higher elastic modulus and yielding strength. The equivalent elastic modulus decreases with the increase in the initial construction error, and can be calculated by using the proposed model. The experiments on the long-bonded grouted sleeve connection and prefabricated concrete piers were carried out to verify the proposed model. The tested effective stress-strain relationship of the grouted sleeve connection, the maximum slip of the reinforcing bar embedded in this connection, and the strain distribution of the sleeve coupler were successfully predicted. Moreover, the performance of prefabricated concrete piers under cyclic loading was successfully simulated by using the proposed model.
Effective stress-strain relationship for grouted sleeve connection: Modeling and experimental verification
Highlights Effective stress-strain relationship for the grouted sleeve connections is presented. Transverse pressure influence coefficient exerted by the sleeve coupler was modeled. The performance of prefabricated piers under cyclic loading was tested. The proposed model was verified by using the connection test and pier test. The proposed model can be implemented in 1D, 2D, and 3D finite element analysis.
Abstract This paper describes the development of an effective stress-strain relationship model for grouted sleeve connections. The transverse pressure influence has been calibrated by using the local bond stress-slip experiment including the effect of the initial construction error of the reinforcing bar. Then, the proposed effective stress-strain model was presented by solving the governing equation of the bond stress-slip behavior for the long-bonded grouted sleeve connection. The grouted sleeve connection can be equivalent to a reinforcing bar with a higher elastic modulus and yielding strength. The equivalent elastic modulus decreases with the increase in the initial construction error, and can be calculated by using the proposed model. The experiments on the long-bonded grouted sleeve connection and prefabricated concrete piers were carried out to verify the proposed model. The tested effective stress-strain relationship of the grouted sleeve connection, the maximum slip of the reinforcing bar embedded in this connection, and the strain distribution of the sleeve coupler were successfully predicted. Moreover, the performance of prefabricated concrete piers under cyclic loading was successfully simulated by using the proposed model.
Effective stress-strain relationship for grouted sleeve connection: Modeling and experimental verification
Yang, Cheng (author) / Zhang, Linyou (author) / Zhang, Ziyang (author) / Cao, Xiaojun (author) / Khan, Inamullah (author) / Deng, Kailai (author) / Xu, Tengfei (author)
Engineering Structures ; 210
2020-01-27
Article (Journal)
Electronic Resource
English
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