Table 2 Material properties of test model members.

From: Dynamic experimental study on anti-progressive collapse of polyline-shaped large-span double-layer grid space structure

Rod type

Cross-section type

Rod cross-section/mm

\({f_y}\)/MPa

\({f_u}\)/MPa

E/GPa

\(\delta\)/%

lower chord rods

round steel tube

\(\Phi\)15.0 × 1.0

289

356

160

25.18

upper chord rods

web members

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