Impact propagation effects along reinforced concrete beams
Paper i proceeding, 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

Författare

Gonzalo S.D. De Ulzurrun

Universidad Politecnica de Madrid

Carlos Zanuy

Universidad Politecnica de Madrid

Morgan Johansson

Chalmers, Arkitektur och samhällsbyggnadsteknik, Konstruktionsteknik

Rasmus Rempling

Chalmers, Arkitektur och samhällsbyggnadsteknik, Konstruktionsteknik

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,

Ämneskategorier

Teknisk mekanik

Husbyggnad

Kompositmaterial och -teknik

Mer information

Senast uppdaterat

2019-06-26