TrussDesign 3D

3D space-truss analysis · CSA S16-19 steel design · NBCC 2020 loads

SOLVED · 44/48 PASS

Test 1 — global equilibrium

Σ applied loads + Σ reactions for the first load case, tolerance 1e-6

ComponentResidualResult
FX1.720e-13PASS
FY6.439e-15PASS
FZ-1.933e-12PASS
MX0.000e+0PASS
MY0.000e+0PASS
MZ0.000e+0PASS

Test 2 — end-value versus in-span stress screening

20 of 48 members have a true peak inside the span that end-only reporting would miss

Mbrσ end-only (MPa)σ incl. in-span (MPa)Δσσ allowDCR end-onlyDCR fullScreen
122.855222.85527.11e-15150.00.15240.1524PASS
278.693778.74130.0476150.00.52460.5249PASS
378.689178.73670.0476150.00.52460.5249PASS
422.840222.84020.0000150.00.15230.1523PASS
573.784573.7845-2.84e-14150.00.49190.4919PASS
690.368790.91850.5498150.00.60250.6061PASS
790.370290.92000.5498150.00.60250.6061PASS
873.785273.78520.0000150.00.49190.4919PASS
9283.3263283.32630.0000150.01.88881.8888FAIL
10196.6683196.66830.0000150.01.31111.3111FAIL
1187.172487.17240.0000150.00.58110.5811PASS
12196.6416196.64160.0000150.01.31091.3109FAIL
13283.4469283.44690.0000150.01.88961.8896FAIL
14189.3843189.53850.1542150.01.26261.2636FAIL
1579.192080.37981.1879150.00.52790.5359PASS
16189.3866189.54060.1541150.01.26261.2636FAIL
1779.190880.37861.1877150.00.52790.5359PASS
1823.085323.0853-4.62e-14150.00.15390.1539PASS
1978.525678.61040.0848150.00.52350.5241PASS
2078.523378.60810.0847150.00.52350.5241PASS
2123.076123.07610.0000150.00.15380.1538PASS
2274.481474.4814-2.84e-14150.00.49650.4965PASS
2390.012690.72480.7122150.00.60010.6048PASS
2490.012790.72480.7122150.00.60010.6048PASS
2574.479974.47990.0000150.00.49650.4965PASS
26276.3260276.32600.0000150.01.84221.8422FAIL
27202.4134202.41340.0000150.01.34941.3494FAIL
2881.666381.66630.0000150.00.54440.5444PASS
29202.3659202.36590.0000150.01.34911.3491FAIL
30276.2115276.21150.0000150.01.84141.8414FAIL
31191.1062191.28150.1753150.01.27401.2752FAIL
3279.824180.96711.1430150.00.53220.5398PASS
33191.0989191.27430.1754150.01.27401.2752FAIL
3479.813980.95701.1431150.00.53210.5397PASS
3518.182718.64420.4615150.00.12120.1243PASS
3614.282114.28211.78e-14150.00.09520.0952PASS
3711.303811.3038-1.78e-15150.00.07540.0754PASS
3814.254414.2544-7.11e-15150.00.09500.0950PASS
3918.079018.63910.5601150.00.12050.1243PASS
408.18498.1849-1.78e-15150.00.05460.0546PASS
419.18669.1866-2.84e-14150.00.06120.0612PASS
428.97628.97620.0000150.00.05980.0598PASS
439.09439.09435.33e-15150.00.06060.0606PASS
448.22678.2267-1.78e-15150.00.05480.0548PASS
4516.335016.33500.0000150.00.10890.1089PASS
4612.753222.03539.2821150.00.08500.1469PASS
4712.739522.02879.2892150.00.08490.1469PASS
4816.363616.36363.55e-15150.00.10910.1091PASS

Design uses the in-span value. Members with Δσ > 0 carry transverse load and reach their peak bending between the end nodes; reporting only end actions would under-report those members.

Test 3 — model diagnostics

PASS No singular stiffness matrix, all members have valid section properties and every joint is connected.

Joints / members / supports20 / 48 / 4
Active DOF120
Load cases / combinations5 / 12

Test 4 — serviceability

SLS combomax |uZ| (mm)Limit (mm)DCRResult
SLS18.238533.330.247PASS
SLS210.116133.330.303PASS