Results 51 to 60 of about 216 (114)
SensorsThe aim of this paper was to explore the application of multi-channel synchronized dynamic strain gauges in monitoring the neutral axis (N.A.) position of prestressed concrete box girders. The N.A.
Shu-Ken Lin +5 more
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Internal and External Prestress Reinforcement Technology for Prestressed Continuous Box Girder
Zhongwai GongluA prestressed concrete cast-in-situ continuous box girder bridge faces transverse cracking of the bottom plate of the second span and the overall stiffness decline. To address this issue, this paper analyzed the causes of the damage.
SONG Chongyang +3 more
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Effect of the Nonprestressed/Prestressed BFRP Bar on Flexural Performance of the Bamboo Beam
Advances in Polymer Technology, 2019 Until now, the systematical and comprehensive strengthening techniques have not been formed for the bamboo structure. Under such background, this paper aims to explore the effects of the application of the nonprestressed and prestressed basalt fiber ...
Qingfang Lv, Yi Ding, Ye Liu
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Experimental and Theoretical Study on Anchorage Loss of Prestressed CFRP-Reinforced Concrete Beams
Applied SciencesTo investigate the anchorage loss mechanism of externally prestressed CFRP tendons in concrete beams, this study introduces a novel theoretical calculation system (TCS) developed through both the finite element method (FEM) and experimental validation ...
Qinrui Liu +3 more
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A Stress Measurement Method for Steel Strands Based on LC Oscillation
Advances in Materials Science and Engineering, 2018 The prestress loss is one of the main factors affecting the safety of prestressed concrete structure. While the detecting signals like sound and light are difficult to spread in steel strands, there is no effective method for prestress detection of the ...
Dongjun Chen +7 more
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Geohazard MechanicsTo thoroughly investigate the damage evolution of anchorage structures under corrosive conditions, laboratory simulations of corrosive environments were conducted, including corrosion tests and mechanical performance evaluations on anchorage systems ...
Aiwen Wang +3 more
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The influence of prestress losses on the anchorage zone of prestressed concrete member
Engineering Structures and TechnologiesArticle briefly discusses the factors affecting bond between concrete and reinforcement of prestressed concrete member. Behavior of prestressed concrete member during release of reinforcement is discussed. Comparative analysis of equations, which describes relation between strand draw-in and transfer length, is presented.
Jokūbaitis, Aidas +2 more
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Thermal Effects on Prestress Loss in Pretensioned Concrete Girders
BuildingsThe fabrication process of pretensioned prestressed concrete (PC) girders involves temperature changes, which affect the effective prestress and mechanical properties of the girders.
Qu Yu, Yongqing Yang, Yu Ren
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Rational Estimation of Initial State of Post-tensioned Concrete Beams Using Field Measurement Data
International Journal of Concrete Structures and MaterialsAccurate estimation of initial prestress is essential for ensuring the structural integrity, durability, and quality management of prestressed concrete (PSC) girders. However, conventional estimation methods that rely on design provisions or experimental
Hyun Woo Park +3 more
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