Results 1 to 10 of about 370 (215)

Pre-Stress Losses in FRP Pre-Stressed Reinforced Concrete – Subject Overview

open access: yesArchives of Civil Engineering, 2018
Fiber reinforced polymers (FRPs) due to their specific high-strength properties become more and more popular and replace traditional structural materials like conventional steel in prestressed concrete structures. FRP reinforced structures are relatively
Przygocka M., Kotynia R.
doaj   +2 more sources

Theoretical Study of the Reinforcement of Pre-stressed Concrete Cylinder Pipes with External Pre-stressed Strands

open access: yesLecture Notes in Civil Engineering, 2023
AbstractReinforcement of the pre-stressed concrete cylinder pipes with external pre-stressed strands is an effective way to enhance a prestressed concrete cylinder pipe’s ability to bear the design hydraulic pressure. A theoretical derivation is studied, and this formula derivation could be used to determine the cross-sectional area per unit length ...
Tiesheng Dou
exaly   +2 more sources

Research on Experimental and Numerical Methods for Mechanical Properties of Lightweight Hollow Precast Utility Tunnels

open access: yesBuildings, 2022
In this paper, the mechanical properties of hollow precast utility tunnels are studied by experimental and numerical methods. Through full-scale experiments, the failure modes of ordinary and hollow utility tunnels are studied, and the failure stages of ...
Yutao Feng, Weibin Li, Nan Lu
doaj   +1 more source

Distributed Compressive Sensing for Wireless Signal Transmission in Structural Health Monitoring: An Adaptive Hierarchical Bayesian Model-Based Approach

open access: yesSensors, 2023
Signal transmission plays an important role in the daily operation of structural health monitoring (SHM) systems. In wireless sensor networks, transmission loss often occurs and threatens reliable data delivery. The massive amount of data monitoring also
Zhiwen Wang   +4 more
doaj   +1 more source

Representation of In-Service Performance for Cable-Stayed Railway–Highway Combined Bridges Based on Train-Induced Response’s Sensing Data and Knowledge

open access: yesSensors, 2022
Real-time representation of the current performance of structures is an important task for perceiving potential danger in in-service bridges. Methods driven by the multisource sensing data of structural health monitoring systems are an effective way to ...
Han-Wei Zhao, You-Liang Ding, Ai-Qun Li
doaj   +1 more source

Shear Test of Variable Depth RC Beams with Inflection Point [PDF]

open access: yesMATEC Web of Conferences, 2019
Variable depth continuous box girder bridges are widely used recently. However, the influence mechanism of the inflection point and variable depth on the shear behaviour of this type bridge has not been fully understood.
Zheng Kaiqi, Kuwornu Michael, Liu Zhao
doaj   +1 more source

Behavior of Pre-stressed Concrete Deep Beams

open access: yesIOP Conference Series: Materials Science and Engineering, 2020
Abstract Six simply supported deep beams were tested to show the influence of prestressing strand on the behavior of reinforced concrete deep beams. All tested beams have same gross sectional area (42000) mm2, compressive strength (30) MPa, clear span length (1000) mm, longitudinal and vertical reinforcement and the strengthened beams ...
Zuhear Abed Hajam   +2 more
openaire   +1 more source

Review of Basalt Fiber-Reinforced Concrete in China: Alkali Resistance of Fibers and Static Mechanical Properties of Composites

open access: yesAdvances in Materials Science and Engineering, 2018
Research on three-dimensional, randomly distributed BFRC in China is analyzed and summarized in relative depth in this study. The results indicate that the effect of the fiber component and alkali corrosion temperature on the alkali resistance of BF is ...
Zhensheng Guo   +3 more
doaj   +1 more source

A Capacitively-Fed Inverted-F Antenna for Displacement Detection in Structural Health Monitoring

open access: yesSensors, 2020
This paper presents a capacitive displacement sensor based on a capacitively fed inverted-F antenna (CFIFA) for displacement detection. The sensor is composed of a grounded L-shape patch and a rectangular upper patch, forming a capacitor between them ...
Songtao Xue   +5 more
doaj   +1 more source

Long-Range Displacement Meters Based on Chipped Circular Patch Antenna

open access: yesSensors, 2020
This paper presents a passive wireless long-range displacement sensor that is based on the circular patch antenna, and the detecting range of the sensor can be customized.
Songtao Xue   +5 more
doaj   +1 more source

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