Monitoring of a tall building to develop axial shortening models incorporating high strength concrete

Abstract

This paper addresses axial shortening prediction of the vertical concrete elements of tall buildings with a particular focus on developing a reliable model for high strength concrete (HSC). An established reinforced concrete column shortening model used for normal strength concrete (NSC) is modified to predict axial shortening in vertical elements made of HSC. To compare with the theoretical model, the axial shortening measurements taken from the 83 storey World Tower Building, Sydney (WTS), obtained during the construction period, are used. The theoretical model having the best match with the actual measurements are recommended for predicting axial shortening of vertical elements using HSC.