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Author:

Hu, M. (Hu, M..) | Han, Q. (Han, Q..) | Jia, Z. (Jia, Z..) | Du, X. (Du, X..) | Jiao, C. (Jiao, C..) | Long, P. (Long, P..)

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EI Scopus

Abstract:

A novel connection of precast bridge deck panels(PCDPs) was proposed for fully prefabricated bridges based on the superior mechanical properties of high-performance materials, such as ultra-high performance concrete (UHPC) and carbon fiber reinforced polymer (CFRP) tendons. This connection meets the demand for rapid construction of bridge superstructures. Static and fatigue tests on 13 specimens were conducted. Damage patterns of PCDPs with high performance connections were revealed. The degenerative laws of mechanical properties indexes under fatigue were analyzed. In addition, analytical models of bearing capacity and deflection under static load were proposed, and the improved deflection calculation method and damage function considering the fatigue effect were presented as well. Experimental results indicate that desirable failure modes of PCDPs with high performance connections under moment and shear were observed. The bearing capacity of the proposed connections can be effectively inproved by increasing the quantity of welded studs and the distance of anchorage. The trends of deflection, stiffness, and energy dissipation after different fatigue cycles include three stages: rapid development of fatigue damage, slow accumulation of damage, and failure stage. The improved analytical models of bearing capacity and deflection have high accuracy compared with the test data. The proposed fatigue damage function and fatigue deflection calculation method are able to effectively evaluate the deflection and damage degree of the PCDPs with high performance connections. To further validate the reliability of proposed connections and analytical models, more specimens will be used and analyzed in future studies. © 2023 Editorial Office of China Civil Engineering Journal. All rights reserved.

Keyword:

connections for precast bridge deck panels ultra-high performance concrete static and fatigue test prediction models carbon fiber reinforced polymer tendon

Author Community:

  • [ 1 ] [Hu M.]Beijing University of Civil Engineering and Architecture, Beijing, 100044, China
  • [ 2 ] [Han Q.]Key Laboratory of Urban Security and Disaster Engineering, The Ministry of Education, Beijing University of Technology, Beijing, 100124, China
  • [ 3 ] [Jia Z.]Key Laboratory of Urban Security and Disaster Engineering, The Ministry of Education, Beijing University of Technology, Beijing, 100124, China
  • [ 4 ] [Du X.]Key Laboratory of Urban Security and Disaster Engineering, The Ministry of Education, Beijing University of Technology, Beijing, 100124, China
  • [ 5 ] [Jiao C.]Beijing University of Civil Engineering and Architecture, Beijing, 100044, China
  • [ 6 ] [Long P.]Beijing University of Civil Engineering and Architecture, Beijing, 100044, China

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Source :

China Civil Engineering Journal

ISSN: 1000-131X

Year: 2023

Issue: 7

Volume: 56

Page: 69-81,91

Cited Count:

WoS CC Cited Count: 0

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 8

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