Impact propagation effects along reinforced concrete beams
Paper in proceedings, 2019

© 2019 IABSE. All rights reserved. This paper studies the time-dependent structural behaviour of concrete beams subjected to impact loading. Drop-weight tests have been carried out in 1180 x 100 x 100 mm longitudinally reinforced concrete beams. Experimental results have been obtained by combing a high speed camera with two-dimensional digital image correlation. The analysis focused on the dynamic internal forces distribution and wave propagation. Flexural moments and, especially, shear forces were greater than their static strengths, confirming the strain-rate dependence of both failure mechanisms and clarifying the sensitivity of concrete to develop brittle failure. Wave propagation analysis showed a variable velocity, decreasing as the slenderness of the effective span increased.

Internal forces

Wave propagation

Impact

Beams

Digital image correlation

Concrete

Author

Gonzalo S.D. De Ulzurrun

Technical University of Madrid

Carlos Zanuy

Technical University of Madrid

Morgan Johansson

Chalmers, Architecture and Civil Engineering, Structural Engineering

Rasmus Rempling

Chalmers, Architecture and Civil Engineering, Structural Engineering

IABSE Symposium, Guimaraes 2019: Towards a Resilient Built Environment Risk and Asset Management - Report

825-832

IABSE Symposium 2019 Guimaraes: Towards a Resilient Built Environment - Risk and Asset Management
Guimaraes, Portugal,

Subject Categories

Applied Mechanics

Building Technologies

Composite Science and Engineering

More information

Latest update

6/26/2019