Comparison of Bond Properties between ALWSCC and Steel Bars Based on Different Test Methods

Jianhui Yang, Wenchao Zhi, Xujun Tang, Qinting Wang, Tom Cosgrove

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Reasonable evaluation of the bond performance between steel bars and concrete has important theoretical and practical value for reinforced concrete structural design and seismic analysis. The stress (τ)-strain (ϵ) formula is corrected based on a pull-out test, and the load (F)-deflection (w) curves are analyzed according to the change of stiffness before and after crack appearance based on a beam test, and new estimation formulas are given. At the same time, the bond properties are compared between all-lightweight shale ceramsite concrete (ALWSCC) and normal weight concrete (NWC). The results show that the bond property of ALWSCC is better than NWC. The bond stresses of pull-out specimens and beam specimens are the same or similar under equal conditions, but the ultimate load (F0) of the former is about 3.66 times that of the latter, the peak slip (S0) of the latter is 4.80 times that of the former, and the latter has significant splitting or pull-out failure characteristics. The peak slip (S0) in this paper is larger than that in the related literature, where the pull-out specimens are no more than 10 mm, and are generally less than 2 mm, while the beam specimens are not more than 3 mm, with the others generally around 1 mm. The research results have reference values and guiding significance for similar experimental research and engineering practice.

Original languageEnglish
Title of host publicationMoving Integrated Product Development to Service Clouds in the Global Economy - Proceedings of the 21st ISPE Inc. International Conference on Concurrent Engineering, CE 2014
EditorsMijia Yang, Joao C.G. Lanzinha, Xingxian Bao
PublisherIOS Press BV
Pages3-22
Number of pages20
ISBN (Electronic)9781643682341
DOIs
Publication statusPublished - 18 Nov 2021
Event6th International Technical Conference on Frontiers of Hydraulic and Civil Engineering Technology, HCET 2021 - Sanya, China
Duration: 28 Aug 202129 Aug 2021

Publication series

NameAdvances in Transdisciplinary Engineering
Volume19
ISSN (Print)2352-751X
ISSN (Electronic)2352-7528

Conference

Conference6th International Technical Conference on Frontiers of Hydraulic and Civil Engineering Technology, HCET 2021
Country/TerritoryChina
CitySanya
Period28/08/2129/08/21

Keywords

  • All-lightweight concrete (ALWC)
  • beam test
  • bond
  • deflection
  • pull-out test
  • shale ceramsite

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