Issue 57

F. Boursas et alii, Frattura ed Integrità Strutturale, 57 (2021) 24-39; DOI: 10.3221/IGF-ESIS.57.03

Figure 16: Effect of the concrete compressive strength

Figure 17: Effect of connectors steel grade.

Effect of the height The influence of the height of the I-shaped connector on the ultimate load capacity is shown in Fig. (18). By increasing the connector’s height from 60 mm up to 70 mm, a considerable increase of the ultimate load from 123.70 kN up to 139.50 kN is attained. This gain represents 12.77% from the initial ultimate load. However, any further increase of the connector’s height does not provide any significant increase of the ultimate load, as shown in Fig. (18). It can be easily noticed that an increase of the connector’s height brings a remarkable increase of the connector’s ductility. The maximum slip increases from 11.58 mm to 14.81 mm then to 17.07 mm when the connector’s height increases from 60 mm to 70 mm then to 80 mm respectively, which is a 47.40% increase from the initial slip capacity.

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