Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Design Example: Distributing Reinforcements in Concrete Sections01:22

Design Example: Distributing Reinforcements in Concrete Sections

223
The topic explores the practical aspects of adjusting steel reinforcements within a concrete beam section to meet specific design requirements. When designing a reinforced concrete beam, it is essential to distribute the steel reinforcements properly to ensure structural integrity and efficiency. The example provided details a scenario where a beam requires a total steel cross-section of 4 square inches. The engineer identifies that the available steel bars have a nominal diameter of 1.693...
223
Beams with Unsymmetric Loadings01:17

Beams with Unsymmetric Loadings

338
Analyzing a supported beam under unsymmetrical loadings is essential in structural engineering to understand how beams respond to varied force distributions. This analysis involves calculating the deflection and identifying points where the slope of the beam is zero, which are crucial for ensuring structural stability and functionality.
The first moment-area theorem determines the slope at any point on the beam. This theorem indicates that the change in slope between two points on a beam...
338
Prismatic Beams: Problem Solving01:15

Prismatic Beams: Problem Solving

388
In the design of a supported timber beam subjected to a distributed load, both the beam's physical dimensions and the timber's characteristics, such as its grade and species, are critical. These factors determine the allowable stress values, which are crucial for calculating the necessary beam depth to ensure structural integrity and safety.
The design begins with analyzing the beam as a free body to identify moments and force balances, thereby determining support reactions. Next, the...
388
Shearing Stresses in a Beam: Problem Solving01:14

Shearing Stresses in a Beam: Problem Solving

534
A cantilever beam with a rectangular cross-section under distributed and point loads experiences shearing stresses. The analysis begins by identifying the loads acting on the beam. Then, the reactions at the beam's fixed end are calculated using equilibrium equations. The vertical reaction is a combination of the distributed and point loads, while the moment reaction is the sum of their moments. The shear force distribution along the beam, resulting from these loads, is established by creating...
534
Design of Prismatic Beams for Bending01:23

Design of Prismatic Beams for Bending

559
The design of prismatic beams, structural elements with a uniform cross-section, focuses on ensuring safety and structural integrity under load. The design process begins by determining the allowable stress, either from material properties tables, or by dividing the material's ultimate strength by a safety factor. This safety factor is essential for accommodating uncertainties, and varies depending on the material—timber, steel, or concrete—with each having unique strength and...
559
Beams with Symmetric Loadings01:15

Beams with Symmetric Loadings

351
The moment-area method is an analytical tool used in structural engineering to determine the slope and deflection of beams under various loads. Consider a cantilever with a concentrated load and moment at the free end. The first step is constructing a free-body diagram to calculate the reactions at the fixed end. Next, the bending moment diagram is plotted to visualize how the bending moment varies along the beam's length, focusing on points where the bending moment equals zero.
The M/EI...
351

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Research on Linear Actuators for Active Foil Bearings.

Materials (Basel, Switzerland)·2022
Same author

Guided Wave Propagation in Detection of Partial Circumferential Debonding in Concrete Structures.

Sensors (Basel, Switzerland)·2019
See all related articles

Related Experiment Video

Updated: Dec 24, 2025

Determination of the Mechanical Properties of Flexible Connectors for Use in Insulated Concrete Wall Panels
05:26

Determination of the Mechanical Properties of Flexible Connectors for Use in Insulated Concrete Wall Panels

Published on: October 19, 2022

1.9K

Debonding Size Estimation in Reinforced Concrete Beams Using Guided Wave-Based Method.

Beata Zima1, Rafał Kędra1

  • 1Department of Mechanics of Materials and Structures, Faculty of Civil and Environmental Engineering, Gdańsk University of Technology, Narutowicza 11/12, 80-233 Gdansk, Poland.

Sensors (Basel, Switzerland)
|April 15, 2020
PubMed
Summary

This study introduces a novel, baseline-free method using guided waves to accurately measure debonding areas in reinforced concrete beams. This technique enables precise non-destructive assessment of structural load capacity without prior baseline data.

Keywords:
damage detectiondebondingembedded barguided wavenondestructive testingreinforced concrete

More Related Videos

Cortical Bone Assessment Using Ultrasonic Guided Waves: A Reproducibility Study in a Healthy Population
09:02

Cortical Bone Assessment Using Ultrasonic Guided Waves: A Reproducibility Study in a Healthy Population

Published on: January 31, 2025

1.4K
Micro/Nano-scale Strain Distribution Measurement from Sampling Moiré Fringes
06:56

Micro/Nano-scale Strain Distribution Measurement from Sampling Moiré Fringes

Published on: May 23, 2017

12.6K

Related Experiment Videos

Last Updated: Dec 24, 2025

Determination of the Mechanical Properties of Flexible Connectors for Use in Insulated Concrete Wall Panels
05:26

Determination of the Mechanical Properties of Flexible Connectors for Use in Insulated Concrete Wall Panels

Published on: October 19, 2022

1.9K
Cortical Bone Assessment Using Ultrasonic Guided Waves: A Reproducibility Study in a Healthy Population
09:02

Cortical Bone Assessment Using Ultrasonic Guided Waves: A Reproducibility Study in a Healthy Population

Published on: January 31, 2025

1.4K
Micro/Nano-scale Strain Distribution Measurement from Sampling Moiré Fringes
06:56

Micro/Nano-scale Strain Distribution Measurement from Sampling Moiré Fringes

Published on: May 23, 2017

12.6K

Area of Science:

  • Structural Engineering
  • Materials Science
  • Non-Destructive Testing

Background:

  • Debonding between steel reinforcement and concrete cover is a critical failure mode in reinforced concrete structures.
  • Accurate assessment of debonding size is essential for evaluating structural integrity and load-bearing capacity.
  • Existing non-destructive methods often require baseline data from undamaged structures, limiting their practical application.

Purpose of the Study:

  • To develop and validate a novel, baseline-free method for quantifying the total area of debonding in reinforced concrete beams.
  • To investigate the influence of debonding size, shape, and location on guided wave propagation characteristics.
  • To establish a reliable technique for the non-destructive assessment of reinforced concrete structures.

Main Methods:

  • Theoretical and experimental analysis of guided wave propagation in concrete beams with controlled debonding.
  • Development of algorithms correlating average wave velocity and time-of-flight with debonding area.
  • Experimental verification using concrete beams with varying debonding parameters.

Main Results:

  • Guided waves can be effectively utilized for both detecting and quantifying the total area of debonding.
  • The proposed baseline-free method accurately determines debonding area based on wave velocity and time-of-flight measurements.
  • Experimental results confirm the validity of the developed relationships across different debonding scenarios.

Conclusions:

  • The developed guided wave-based method offers a significant advancement in the non-destructive assessment of reinforced concrete structures.
  • The baseline-free approach eliminates the need for pre-existing data from undamaged states, enhancing practical usability.
  • This technique provides a precise and efficient means to determine debonding area, crucial for structural health monitoring and capacity evaluation.