Issue 45

D. Yang et alii, Frattura ed Integrità Strutturale, 45 (2018) 45-52; DOI: 10.3221/IGF-ESIS.45.04 49 Concrete C3D8R Steel tube C3D8I Extrapolation points “hard contact” with Coulomb friction Weld Figure 6: Finite-element grids of a CHS-CFSHS T-joint (partial). Brace 0 ° 180 ° 45 ° 60 ° 90 ° 270 ° Chord AT 0 ° 180 ° 45 ° 60 ° 90 ° 270 ° Chord Tensile Compressive Brace IPB Figure 7: Condition of Axial Tension. Figure 8: Condition of In-plane bending moment. Results and analysis Tabs. 1 and 2 show the SFC results in Conditions 1 and 2 respectively, According to the SCF calculation method in the existing achievements [16, 21]. The following conclusions were drawn from the SCF results. Joints w0/t1 w1/t1 Brace-side SCF Chord-side SCF 0° 60° 90° 0° 60° 90° WT 1 0.5 1.2 3.61 5.82 6.70 5.48 7.96 9.05 WT 2 0.5 2.0 1.70 3.82 4.48 5.60 8.34 9.29 WT 3 1.2 1.2 4.19 6.66 7.56 5.06 7.06 7.76 WT 4 1.8 1.8 3.29 5.76 6.63 4.87 6.46 6.95 WT 5 0.5 1.8 2.14 4.20 4.88 5.71 8.27 8.93 WT 6 1.0 1.8 2.83 5.25 6.03 5.34 7.61 8.41 Table 1: SCF in Condition 1.