Rothoblaas - X-RAD Page 32
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X-ONE X-PLATE X-SEAL Checks at the Ultimate Limit State are carried out using the design resistance domain of X-ONE, defined starting from the characteristic resistance values (1). The design resistance values are obtained as follows: steel-side: wood-side: with the coefficients kmod and γM to be taken according to the failure modes and the current regulations used for the calculation. N [kN] 130 Verification of the X-ONE connection is considered achieved when the point representing the stress Fd falls within the design resistance domain: 110 Rk Rd 90 Rd EN 1995-1-1 70 Fd 50 Fd ≤ Rd 30 10 -230 -210 -190 -170 -150 -130 -110 -90 -70 -50 -30 -10 α = 0° 10 30 50 70 90 -30 110 130 V [kN] -50 -70 -90 -110 -130 -150 -170 -190 -210 -230 The design domain of X-ONE refers to the resistance values and to the γM coefficients shown in the table and for loads with instantaneous duration class (earthquake and wind) (2). Design resistance domain in accordance with EN1995-1-1 and EN1993-1-8 NOTES: (1) The full report on experimental analysis of the X-ONE connection can be downloaded from www.rothoblaas.com or from the MyProject software. (2) Connection by means of X-ONE works as a connection between CLT walls to prevent their tipping and sliding in the presence of seismic and wind phenomena (instantaneous duration class). The static vertical forces are transmitted directly by wall-wall contact, without stressing the connection. The use of X-ONE in the presence of loads with brief, medium or permanent duration class (kmod < 1) requires a re-assessment of the design domain, because the resistance hierarchy may change. In these cases, in the interests of safety, we suggest treating all design resistances as wood-side resistances, applying opportune kmod and γM coefficients. 30 X-ONE
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