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18 R E L A S T ® D E S I G N M A N U A L Figure 21 Loaddisplacement curve of specimens from test series 2018 [2] 3 2 3 Test series 2018 In this test series the aim was to identify the effect of exi - sting bending reinforcement ratio on the performance of the RELAST ® system The RELAST ® configuration in test series 2018 is as shown in Figure 20 From the forcedisplacement curves in Figure 21 the following results can be identified • Specimens with the highest ratio of flexural reinforcement reached the highest failure loads • Specimens with the highest ratio of flexural reinforcement achieved the lowest deformations • Increase in shear reinforcement number of screws accounts to a higher increase in ultimate load capacity than increase in the flexural reinforcement ratio Figure 20 Test series 2018 [2] 36 RELAST ® 22 M20x335* mm 24 RELAST ® 22 M20x335* mm 36 RELAST ® 22 M20x335* mm 24 RELAST ® 22 M20x335* mm 36 RELAST ® 22 M20x335* mm 24 RELAST ® 22 M20x335* mm 3 VALIDATION BY TESTING