EXPERIMENTAL RESEARCH OF LATERAL PRESSURE ON SELF-COMPACTING CONCRETE FORMWORKS CONSIDERING TIME-VARYING PROPERTIES

WU Shukang; ZHANG Wenxue; JI Jun; LU Xiangtao

doi:10.13204/j.gyjzG21010409

Volume 51 Issue 8

Nov. 2021

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WU Shukang, ZHANG Wenxue, JI Jun, LU Xiangtao. EXPERIMENTAL RESEARCH OF LATERAL PRESSURE ON SELF-COMPACTING CONCRETE FORMWORKS CONSIDERING TIME-VARYING PROPERTIES[J]. INDUSTRIAL CONSTRUCTION, 2021, 51(8): 120-125. doi: 10.13204/j.gyjzG21010409

Citation:

WU Shukang, ZHANG Wenxue, JI Jun, LU Xiangtao. EXPERIMENTAL RESEARCH OF LATERAL PRESSURE ON SELF-COMPACTING CONCRETE FORMWORKS CONSIDERING TIME-VARYING PROPERTIES[J]. INDUSTRIAL CONSTRUCTION, 2021, 51(8): 120-125. doi: 10.13204/j.gyjzG21010409

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EXPERIMENTAL RESEARCH OF LATERAL PRESSURE ON SELF-COMPACTING CONCRETE FORMWORKS CONSIDERING TIME-VARYING PROPERTIES

doi: 10.13204/j.gyjzG21010409

College of Architecture and Civil Engineering, Beijing University of Technology, Beijing 100124, China

Received Date: 2021-01-04
Available Online: 2021-11-10
Publish Date: 2021-11-10

Abstract

Abstract

Aiming at the problem that the research on the calculation of the lateral pressure of self-compacting concrete formwork is not perfect enough, a calculation model of the lateral pressure of self-compacting concrete formwork was established based on Janssen theory, and the calculation formula of the lateral pressure was deduced. The time-varying effect of friction coefficient μ and lateral pressure reduction coefficient K between self-compacting concrete and formwork was studied by self-designed test device, and the parameters of the deduced formula were modified. The validity of the modified formula was verified based on the measured data of lateral pressure. The results showed that the error between the calculated and the measured values was small and the correction formula considering the time-varying effect could predict the lateral pressure of the formwork relatively accurately.
- self-compacting concrete,
- lateral pressure of formwork,
- Janssen theory,
- friction coefficient,
- reduction coefficient

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References(16)

References

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