Results 31 to 40 of about 8,557 (257)
Time-dependent stability analysis of open-pit slope considering life-cycle
矿业科学学报, 2021 Based on the influence of excavation and creep degradation on the stability of high slopes in open-pit, a stability model of slopes in life-cycle is proposed.
Bao Min +4 more
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Coupling Effect of Creep Deformation and Prestress Loss of Anchored Jointed Rock
Advances in Civil Engineering, 2020 To explore the variation behaviour of anchor jointed rock subject to high in situ stress states, a coupling effect calculation model based on stress equality was established based on the original rheological model of rock by combining element combination
Bairu Zhu +3 more
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Research on Prediction Model of Prestress Loss of Anchor Cable in Soil-Rock Dual-Structure Slope
Advances in Materials Science and Engineering, 2021 The establishment of the prestressed cable loss prediction model is a difficult problem faced by the popularization and use. This article aims at the problem of the loss of anchor cable prestress over time in the soil-rock dual-structure slope. We relied
Xuhe Gao +4 more
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International Journal of Mining Science and Technology, 2023 The loss of anchoring force is one of the problems to be solved urgently. The anchorage loss is a key factor causing the failure of anchoring engineering, so it is crucial to study the time-dependent variation of anchoring force. Alternating dry and wet (
Yu Zhao +5 more
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Snap-through behaviour of a bistable structure based on viscoelastically generated prestress [PDF]
, 2017 A novel form of shape-changing bistable structure has been successfully developed through the use of viscoelastically generated prestress. Bistability is achieved through pairs of deflecting viscoelastically prestressed polymeric matrix composite (VPPMC)
Fancey, Kevin S., Ge, Chao, Wang, Bing
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Case Studies in Construction Materials, 2023 Using prestressed carbon fiber reinforced polymers (CFRPs) is a promising technique for strengthening reinforced concrete (RC) structures. This study aimed to investigate the prestress losses and flexural behavior of strengthened RC beams under wetting ...
Xiaoda Li +3 more
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Dynamic one-sided out-of-plane behavior of unreinforced-masonry wall restrained by elasto-plastic tie-rods [PDF]
, 2019 Past earthquakes have shown the high vulnerability of existing masonry buildings, particularly to out-of-plane local collapse mechanisms. Such mechanisms can be prevented if façades are restrained by tie rods improving the connections to perpendiculars ...
Al Shawa, Omar +2 more
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State-of-the-Art Review on Determining Prestress Losses in Prestressed Concrete Girders [PDF]
Applied Sciences, 2020 Prestressing methods were used to realize long-span bridges in the last few decades. For their predictive maintenance, devices and dynamic nondestructive procedures for identifying prestress losses were mainly developed since serviceability and safety of Prestressed Concrete (PC) girders depend on the effective state of prestressing.
Marco Bonopera +2 more
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Applied Sciences, 2022 This paper proposes using neutral axis locations to monitor and quantify the prestress force in post-tensioned precast segmental beams. Strain measurements are used to obtain the neutral axis locations of specific cross-sections of the precast ...
Han Li +5 more
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Probabilistic Assessment of Prestress Loss in Pretensioned Prestressed Concrete [PDF]
PCI Journal, 1995 The effects of variability in the parameters used to calculate prestress loss are evaluated by a probabilistic prestress loss computer program. The program accounts for the time-dependent effects caused by creep, shrinkage, and steel relaxation. Losses caused by elastic shortening of the prestressed concrete member are also calculated.
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