EXPERIMENTAL STUDY ON EFFECT OF LOADING MODE AND ANCHORAGE LENGTH ON CONNECTION BEHAVIOR OF GROUTING SLEEVE FOR REBARS SPLICING

WANG Zhanwen; CHEN Jianwei; JU Shilong; LIU Ziye

doi:10.13204/j.gyjzG20032904

Volume 51 Issue 4

Aug. 2021

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Article Navigation > INDUSTRIAL CONSTRUCTION > 2021 > 51(4): 118-125,171

LIU Yan, CHEN Ruixin, ZHANG Moyan, LI Qi, ZHANG Hao, CAO Qimeng, YANG Liu. RESEARCH ON THE INFLUENCE OF GREEN SETTLEMENT DESIGN PARAMETERS ON SOLAR RADIATION[J]. INDUSTRIAL CONSTRUCTION, 2020, 50(7): 143-150. doi: 10.13204/j.gyjzG19113017

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WANG Zhanwen, CHEN Jianwei, JU Shilong, LIU Ziye. EXPERIMENTAL STUDY ON EFFECT OF LOADING MODE AND ANCHORAGE LENGTH ON CONNECTION BEHAVIOR OF GROUTING SLEEVE FOR REBARS SPLICING[J]. INDUSTRIAL CONSTRUCTION, 2021, 51(4): 118-125,171. doi: 10.13204/j.gyjzG20032904

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EXPERIMENTAL STUDY ON EFFECT OF LOADING MODE AND ANCHORAGE LENGTH ON CONNECTION BEHAVIOR OF GROUTING SLEEVE FOR REBARS SPLICING

doi: 10.13204/j.gyjzG20032904

1. College of Civil and Architectural Engineering, North China University of Science and Technology, Tangshan 063210, China;
2. Earthquake Engineering Research Center of Hebei Province, Tangshan 063210, China

Received Date: 2020-03-29
Available Online: 2021-08-19

Abstract

Abstract

This paper presented an experimental study on the mechanical properties of 40 steel grouted sleeve splices considering the effects of the loading modes (repeated tensile loading, repeated tensile and compression loading at high stress and repeated tensile and compression loading at large strain) and anchorage length (6.5d,7d,8d). The failure modes, load-displacement curves, strain distribution, etc. were studied. The constraint mechanism of the connection specimens and the crack development process of the grouting material were analyzed. The stress distribution in smooth section and deformed section of the sleeve, and the critical anchorage length of the rebar were determined. The test results showed that the failure modes should include the rebar tensile failure and rebar pull-out at the threaded end. The rigidity degeneration of the splices was obvious under cyclic load. The energy-dissipating capacity of specimens decreased with the decrease in anchorage length. The longitudinal and circumferential peak strain positions on the sleeve surface and the bonding stress distribution between the smooth section and the deformed section were significantly affected by the anchorage length of the rebar. The critical anchorage lengths of rebar diameter of 12 mm and 20 mm were 5.42 and 5.48 times the rebar diameter respectively.
- rebar connection,
- grouted sleeve,
- loading mode,
- anchorage length,
- prefabricated structures

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References(13)

References

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