A new empirical approach to estimate temperature effects on strut loads in braced excavation

Wu, Ming; Du, Chenhui; Yang, Kai; Geng, Xueyu; Liu, Xin; Xia, Tao

doi:10.1016/j.tust.2019.103115

Cited by 8 publications

(1 citation statement)

References 19 publications

(40 reference statements)

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“…Calculation of steel bracing of the foundation pit is usually based on the elastic foundation beam model to consider the effect of temperature, or based on the Winkler model to establish the empirical model of the effect of temperature on the bracing system of the foundation pit. Due to its complexity, inappropriate simplified models sometimes underestimate the temperature effect on steel bracing, which eventually leads to bracing failure [15]. For steel assembly bracing, owing to the influence of lateral deformation along the depth direction of the foundation pit, the influence of temperature on the second layer bracing is sometimes greater than the first layer [16].…”

Section: Introductionmentioning

confidence: 99%

Real-Time Monitoring for Effects of Vibration and Temperature of Construction Site on Steel Assembly Bracing of Foundation Pit

et al. 2023

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In this paper, a real-time monitoring system—including vibration acceleration sensors, temperature sensors, and static and dynamic strain sensors—is used to monitor the safety status of a steel assembly bracing in a practical project. It uses 5G wireless networking technology to transmit monitoring data to a cloud server for early warning of abnormal changes and development trends. Real-time monitoring data obtained in a construction site are used as the inputs of the finite element model and the corresponding results of numerical simulation are compared with the results from the real-time monitoring. It can be concluded that: (1) the stress caused by environmental temperature is very significant which can be higher than the initial prestress of the steel assembly bracing; (2) the stress caused by the vertical vibration mainly from construction vehicles is not remarkable, however, the vertical frequency-weighted acceleration of support vibration is relatively large which can affect the sense of safety of engineering technicians on site; (3) the combination of the environmental temperature and vertical vibration does not affect the safety of the steel assembly bracing.

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Section: Introductionmentioning

confidence: 99%

Real-Time Monitoring for Effects of Vibration and Temperature of Construction Site on Steel Assembly Bracing of Foundation Pit

et al. 2023

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Deformation Characteristics for Subway Excavation in Soft Soil and Temperature Correction Method in Strut Force

Han

Mei

et al. 2022

Arab J Sci Eng

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Synergetic mining of geothermal energy in deep mines: An innovative method for heat hazard control

Chen

Jia

et al. 2022

Applied Thermal Engineering

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A new empirical approach to estimate temperature effects on strut loads in braced excavation

Abstract: Please refer to published version for the most recent bibliographic citation information. If a published version is known of, the repository item page linked to above, will contain details on accessing it.

Cited by 8 publications

References 19 publications

Real-Time Monitoring for Effects of Vibration and Temperature of Construction Site on Steel Assembly Bracing of Foundation Pit

Real-Time Monitoring for Effects of Vibration and Temperature of Construction Site on Steel Assembly Bracing of Foundation Pit

Deformation Characteristics for Subway Excavation in Soft Soil and Temperature Correction Method in Strut Force

Synergetic mining of geothermal energy in deep mines: An innovative method for heat hazard control

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