ST4X9.2
| Type | ST | |
|---|---|---|
| AISC Manual Label | ST4X9.2 | |
| W | W – Nominal weight, (kg/m) | 9.2 |
| A | A – Cross-sectional area,(mm2) | 2.7 |
| d | d – Overall depth of member, (mm) | 4 |
| ddet | ddet – Detailing value of member depth,(mm) | 4 |
| Ht | Ht – Overall depth of square or rectangular HSS, (mm) | |
| h | h – Depth of the flat wall of square or rectangular HSS,(mm) | |
| OD | OD – Outside diameter of round HSS or pipe, in. (mm) | |
| bf | bf – Flange width, in. (mm) | 4 |
| bfdet | bfdet – Detailing value of flange width, in. (mm) | 4 |
| B | B – Overall width of square or rectangular HSS, in. (mm) | |
| b | b – Width , in. (mm) | |
| ID | ID – Inside diameter of round HSS or pipe, in. (mm) | |
| tw | tw – Web thickness, in. (mm) | 0.271 |
| twdet | twdet – Detailing value of web thickness, in. (mm) | 0.25 |
| twdet/2 | twdet/2 – Detailing value of tw/2, in. (mm) | 0.125 |
| tf | tf – Flange thickness, in. (mm) | 0.425 |
| tfdet | tfdet – Detailing value of flange thickness, in. (mm) | 0.4375 |
| t | t – Thickness of angle leg, in. (mm) | |
| tnom | tnom – HSS and pipe nominal wall thickness, (mm) | |
| tdes | tdes – HSS and pipe design wall thickness, (mm) | |
| kdes | kdes – Design distance from outer face of flange to web toe of fillet, (mm) | 1 |
| kdet | kdet – Detailing distance from outer face of flange to web toe of fillet, (mm) | 1 |
| k1 | k1 – Detailing distance from center of web to flange toe of fillet, (mm) | |
| x | x – Horizontal distance from designated member edge, (mm) | |
| y | y – Vertical distance from designated member edge, (mm) | 0.942 |
| eo | eo – Horizontal distance from designated member edge, (mm) | |
| xp | xp – Horizontal distance from designated member edge, (mm) | |
| yp | yp – Vertical distance from designated member edge, (mm) | 0.336 |
| bf/2tf | bf/2tf – Slenderness ratio | 4.71 |
| b/t | b/t – Slenderness ratio for single angles | |
| b/tdes | b/tdes – Slenderness ratio for square or rectangular HSS | |
| h/tw | h/tw – Slenderness ratio | |
| h/tdes | h/tdes – Slenderness ratio for square or reHangular HSS | |
| D/t | D/t – Slenderness ratio for round HSS and pipe, or tee shapes | 14.8 |
| Ix / 106 | Ix – Moment of inertia about the x-axis, (mm4 /10^6) | 3.49 |
| Zx / 103 | Zx – Pltic section modulus about the x-axis, (mm3 /10^3) | 2.07 |
| Sx / 103 | Sx – Eltic section modulus about the x-axis, (mm3 /10^3) | 1.14 |
| rx | rx – Radius of gyration about the x-axis, (mm) | 1.14 |
| Iy / 106 | Iy – Moment of inertia about the y-axis, (mm4 /10^6) | 1.84 |
| Zy / 103 | Zy – Pltic section modulus about the y-axis, (mm3 /10^3) | 1.59 |
| Sy / 103 | Sy – Eltic section modulus about the y-axis, (mm3 /10^3) | 20.922 |
| ry | ry – Radius of gyration about the y-axis (with no separation for double angles back-to-back), (mm) | 0.827 |
| Iz / 106 | Iz – Moment of inertia about the z-axis, (mm3 /10^6) | |
| rz | rz – Radius of gyration about the z-axis, (mm) | |
| Sz / 103 | Sz – Eltic section modulus about the z-axis, (mm3 /10^3) | |
| J / 103 | J – Torsional moment of inertia, (mm4 /10^3) | 0.167 |
| Cw / 109 | Cw – Warping constant, (mm6 /10^9) | 0.0642 |
| C / 103 | C – HSS torsional constant, (mm3 /10^3) | |
| Wno | Wno – Normalized warping function, used in Design Guide 9, (mm2) | |
| Sw1 / 106 | Sw1 – Warping statical moment at point 1 on cross section, (mm4 /10^6) | |
| Sw2 / 106 | Sw2 – Warping statical moment at point 2 on cross section, (mm4 /10^6) | |
| Sw3 / 106 | Sw3 – Warping statical moment at point 3 on cross section, (mm4 /10^6) | |
| Qf / 103 | Qf – Statical moment for a point in the flange directly above the vertical edge of the web, (mm3 /10^3) | |
| Qw / 103 | Qw – Statical moment for a point at mid-depth of the cross section, (mm3 /10^3) | |
| ro | ro – Polar radius of gyration about the shear center, (mm) | 1.58 |
| H | H – Flexural constant | 0.788 |
| tan(?) | tan(a) – Tangent of the angle between the y-y and z-z axes for single angles | |
| Qs | Qs – Reduction factor for slender unstiffened compression elements | 1 |
| Iw / 106 | Iw – Moment of inertia about the w-axis, (mm4 /10^6) | |
| zA | zA – Distance from point A to center of gravity along z-axis, | |
| zB | zB – Distance from point B to center of gravity along z-axis, | |
| zC | zC – Distance from point C to center of gravity along z-axis, | |
| wA | wA – Distance from point A to center of gravity along w-axis, | |
| wB | wB – Distance from point B to center of gravity along w-axis, | |
| wC | wC – Distance from point C to center of gravity along w-axis, | |
| SwA / 103 | SwA – Eltic section modulus about the w-axis at point A on cross section, | |
| SwB / 103 | SwB – Eltic section modulus about the w-axis at point B on cross section, | |
| SwC / 103 | SwC – Eltic section modulus about the w-axis at point C on cross section, | |
| SzA / 103 | SzA – Eltic section modulus about the z-axis at point A on cross section, | |
| SzB / 103 | SzB – Eltic section modulus about the z-axis at point B on cross section, | |
| SzC / 103 | SzC – Eltic section modulus about the z-axis at point C on cross section, | |
| rts | rts – Effective radius of gyration, (mm) | |
| ho | ho – Distance between the flange centroids, (mm) | |
| PA | PA – Shape perimeter minus one flange surface, used in Design Guide 19, (mm) | |
| PB | PB – Shape perimeter, used in Design Guide 19, (mm) | |
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