Results 21 to 30 of about 943 (198)

Experimental Measurements in the Field of Prestressing Force Monitoring

open access: yesCivil and Environmental Engineering, 2022
In recent years, lots of researchers have given attention to prestressing evaluation in existing prestressed concrete structures. In Europe, many existing prestressed concrete bridges are about to reach their limit of service life and exhibit signs of ...
Kraľovanec Jakub, Moravčík Martin
doaj   +1 more source

Flexural Response of Reinforced Concrete Beams Strengthened with Near-Surface-Mounted Fe-Based Shape-Memory Alloy Strips

open access: yesInternational Journal of Concrete Structures and Materials, 2018
This paper proposes an advanced near-surface-mounted (NSM) technique with an Fe-based shape-memory alloy (Fe-SMA) strip which can solve issues of low workability and reduced ductility of reinforced concrete (RC) beams strengthened with an NSM technique ...
Kinam Hong   +3 more
doaj   +1 more source

Condition Assessment of PCI Bridge Girder a Result of The Reduction Prestressing Force

open access: yesEPJ Web of Conferences, 2014
PCI bridge girders is known and widely used for many construction e.g.: bridge, wharf, flyover, and other application. PC Bridge girders have two types: Pre - tensioned girders and post - tensioned girders.
Suangga Made   +2 more
doaj   +1 more source

Bond Behavior of Pretensioned Strand Embedded in Ultra-High-Performance Fiber-Reinforced Concrete

open access: yesInternational Journal of Concrete Structures and Materials, 2018
This study aimed to investigate the bond properties of prestressing strands embedded in ultra-high-performance fiber-reinforced concrete (UHPFRC). Toward this end, two types of prestressing strands with diameters of 12.7 and 15.2 mm were considered ...
Hyun-Oh Shin   +2 more
doaj   +1 more source

Estimation of Prestress Force Distribution in the Multi-Strand System of Prestressed Concrete Structures [PDF]

open access: yesSensors, 2015
Prestressed concrete (PSC) is one of the most reliable, durable and widely used construction materials, which overcomes the weakness of concrete in tension by the introduction of a prestress force. Smart strands enabling measurement of the prestress force have recently been developed to maintain PSC structures throughout their lifetime.
Keunhee Cho   +4 more
openaire   +4 more sources

Effect of Prestress Levels and Jacking Methods on Friction Losses in Curved Prestressed Tendons

open access: yesApplied Sciences, 2017
The effects of prestressing methods and prestress levels on the friction losses of prestressed tendons were evaluated in this study. Two full-scale prestressed concrete girders were fabricated and used for the friction loss experiment.
Sungnam Hong
doaj   +1 more source

Cellular Responses to Mechanical Cues Across Scales: From Fundamental Insights to Translational Potential

open access: yesAdvanced Healthcare Materials, EarlyView.
This review examines how cellular behavior is regulated by mechanical cues transmitted through soft biomaterials, from single‐cell mechanosensing to tissue‐level adaptation. It highlights why physiological relevance, rather than model complexity alone, is critical for translational mechanobiology and introduces a scoring framework linking material ...
Mathias Polz   +9 more
wiley   +1 more source

Determination of prestressing levels for cable trusses as a function of their stability

open access: yesGrađevinar, 2013
The stability of prestressed cable trusses subjected to static and dynamic loads is analysed in the paper. The stiffness of the elastic cable truss system was varied by changing the prestressing force.
Mirko Aćić   +2 more
doaj   +1 more source

A theoretical and experimental study on the pre-tensioning and anchorage of composite materials based on shape memory alloys

open access: yesCase Studies in Construction Materials, 2023
Prestressing technology can not only improve the bearing capacity of beam but also improve the utilization rate of carbon fiber-reinforced polymers (CFRPs). However, the existing prestressing and anchorage devices are complicated and have many components,
Zihan Li   +4 more
doaj   +1 more source

Topology and Material Optimization in Ultra‐Soft Magneto‐Active Structures: Making Advantage of Residual Anisotropies

open access: yesAdvanced Materials, EarlyView.
Residual magnetization induces pronounced mechanical anisotropy in ultra‐soft magnetorheological elastomers, shaping deformation and actuation even without external magnetic fields. This study introduces a computational‐experimental framework integrating magneto‐mechanical coupling into topology optimization for designing soft magnetic actuators with ...
Carlos Perez‐Garcia   +3 more
wiley   +1 more source

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