Full-scale field experimental investigation on the interfacial shear capacity of continuous slab track structure

• Autorzy: Dai G. , Su M.

Identyfikatory

DOI

10.1016/j.acme.2016.03.005

• Języki publikacji: EN

Abstrakty

EN

This paper presents the experimental observations and results of six full-scale field ballastless track structure specimens, and tested under longitudinal and transverse shear load. The tests aimed to examine the interfacial shear capacity of the continuous slab track structure and investigate the interfacial bond–slip behaviour. The results show that bond strength of the two interfaces which were on the top and bottom of mortar layer, respectively, have a large difference. Until the top interface of the mortar layer fractured, no slip displacement was observed in the bottom interface. In addition to the experimental study, a finite element model using nonlinear interface elements was employed to simulate the tests. The numerical calculated capacity agreed well with the experimental results, showing that the proposed bond–slip law is reliable. Finally, the track slab's evenness with the bond–slip effect under the dynamic load was studied.

Słowa kluczowe

EN

continuous slab track structure; load-bearing capacity; shear; bond-slip; interface

PL

nośność; belka wzmocniona; most kolejowy

• Wydawca: Springer ; Wrocław University of Science and Technology
• Czasopismo: Archives of Civil and Mechanical Engineering
• Rocznik: 2016
• Tom: Vol. 16, no. 3
• Strony: 485--493
• Opis fizyczny: Bibliogr. 20 poz., rys., tab., wykr.

Twórcy

autor

Dai G.

• School of Civil Engineering, Central South University, Changsha 410075, China
• National Engineering Laboratory for High Speed Railway Construction, Changsha 410075, China

autor

Su M.

• School of Civil Engineering, Central South University, Changsha 410075, China

Bibliografia

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Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę