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Test match


The large scale testing carried out at Cardington represents a useful research contribution. However, in this case my first reaction was one of doubt as to the method used here. The effect of a lorry colliding with a column is a sudden impact loading, rather different to the gradual reduction in the jacking pressure described. Further, the test column section is cut out, whereas in a real life collision the continuous vertical reinforcemement would be substantially deflected, thus causing an additional drag down loading on the corner of the remaining structure I would have thought.

Perhaps this subjective consideration has little effect on the actual loadings, but I would be interested to hear other opinions.

Mike Paul (T) hv-tbt.

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