STUDY ON QUANTITATIVE MODEL OF BUILDABILITY PERFORMANCE OF 3D PRINTED CONCRETE

SHI Qingxuan; WAN Shengmu

doi:10.13204/j.gyjzG20120105

Volume 51 Issue 6

Oct. 2021

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SHI Qingxuan, WAN Shengmu. STUDY ON QUANTITATIVE MODEL OF BUILDABILITY PERFORMANCE OF 3D PRINTED CONCRETE[J]. INDUSTRIAL CONSTRUCTION, 2021, 51(6): 16-23. doi: 10.13204/j.gyjzG20120105

Citation:

SHI Qingxuan, WAN Shengmu. STUDY ON QUANTITATIVE MODEL OF BUILDABILITY PERFORMANCE OF 3D PRINTED CONCRETE[J]. INDUSTRIAL CONSTRUCTION, 2021, 51(6): 16-23. doi: 10.13204/j.gyjzG20120105

SHI Qingxuan, WAN Shengmu. STUDY ON QUANTITATIVE MODEL OF BUILDABILITY PERFORMANCE OF 3D PRINTED CONCRETE[J]. INDUSTRIAL CONSTRUCTION, 2021, 51(6): 16-23. doi: 10.13204/j.gyjzG20120105

Citation:

SHI Qingxuan, WAN Shengmu. STUDY ON QUANTITATIVE MODEL OF BUILDABILITY PERFORMANCE OF 3D PRINTED CONCRETE[J]. INDUSTRIAL CONSTRUCTION, 2021, 51(6): 16-23. doi: 10.13204/j.gyjzG20120105

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STUDY ON QUANTITATIVE MODEL OF BUILDABILITY PERFORMANCE OF 3D PRINTED CONCRETE

doi: 10.13204/j.gyjzG20120105

SHI Qingxuan^1,2,3,
WAN Shengmu^{2
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1. State Key Laboratory of Green Building in Western China, Xi'an University of Architecture & Technology, Xi'an 710055, China;
2. School of Civil Engineering, Xi'an University of Architecture & Technology, Xi'an 710055, China;
3. Key Lab of Structural Engineering and Earthquake Resistance, Ministry of Education(XAUAT), Xi'an 710055, China

Received Date: 2020-12-01
Available Online: 2021-10-27

Abstract

Abstract

To quantify the buildability performance of 3D printed concrete, according to its rheological characteristics during pumping, extrusion and deposition, a strength failure model based on yield stress and self-weight stress of printing concrete was established. Based on Mohr-Coulomb yield criterion and Tresca failure theory, the quantitative model was suitable for predicting the number of failure layers when plastic yield occurred. At the same time, because it assumed that the loading rate of botton layer was linearized, the model was a lower bound model for conservative prediction, and its correctness was verified by the existing test data and model in the literature. Considering that each layer might produce compression deformation under the gravity of the upper deposited layer, the total compression deformation of the structure after printing was predicted according to Hook's law.
- 3D printed concrete,
- buildability performance,
- rheological properties,
- quantitative model,
- compression deformation

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References(25)

References

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