截面特性.xls

19:41 6/17/2020 Engineer: Sheet: Section_by_nodes File: 1fec800d1def33ac22a75f53cc9ddb6b.xls EXELTECH, INC. Project:THE DREAM BRIDGE Engineer:Project # 615 2nd Ave. Suite 660 Date:10-Nov Seattle, WA 98024 Subject:BOX-GIRDER SECTION Checker:Page: tel. (206)623-9646 Date: PROPERTIES OF SECTION DESCRIBED BY NODES COORDINATES Units:m Nodes Coordinates Section Properties About Centroidal Axis Parallel to Original Axis XYf =1.054 degX-dim =16 m 10.0000.000A =9.62 m2Y-dim =3.5 m 2-2.6750.000Xcg =0.284 mSx(top) =12.9 m3 3-2.6750.090Ycg =2.406 mSx(bot) =5.9 m3 4-3.9253.000Ixo =14.1 m4Sy(left) =19.3 m3 5-7.5003.270Iyo =150.1 m4Sy(right)=18.3 m3 6-7.5003.500Ixyo =2.5 m4 78.5003.500 88.5003.270Section Properties About Principal Axis 93.9253.000f =1.054 degSxp(top) =11.4 m3 102.6750.090Ixp =14.1 m4Sxp(bot) =5.8 m3 112.6750.000Iyp =150.2 m4Syp(left) =19.3 m3 120.0000.000Ixyp =0.0 m4Syp(right)=18.2 m3 130.0000.180J =164.3 m4 142.1200.180 153.3703.000 162.1203.270 17-2.1203.270 18-3.3703.000 19-2.1200.180 200.0000.180 210.0000.000 22 23 24 25 26 27 28 29 30 31 32 33 1086420-2-4-6-8-10 -8 -3 2 7 12 19:41 6/17/2020 Engineer: Sheet: Section_by_layersFile: 1fec800d1def33ac22a75f53cc9ddb6b.xls PROPERTIES OF SECTION DESCRIBED BY LAYERS (FROM TOP TO BOTTOM) Units:in Layer No. Top Width Bottom Width Thickness Distance from top1494910 2491031 310624 466336 5625339 62525542 72523147 80 90 100 110Elastic Section Properties 120Height =48.000 in 130Area =547.000 in2 140Ix = 172658.07 in4 150Yt =24.406 in 160Yb =23.594 in 170St =7074.45 in3 180Sb =7317.83 in3 190Iy =28656.29 in4 200 210 220 230 240 250 260 270 280 290 300 310 320 330 340 350 360 370 30.020.010.00.0-10.0-20.0-30.0 -60 -50 -40 -30 -20 -10 0 19:41 6/17/2020 Engineer: Sheet: Torsion_PropertiesFile: 1fec800d1def33ac22a75f53cc9ddb6b.xls Torsional Constants for Common Sections (Ref. Roark) Units:ft Thin Wall Box K = 2tt1(a-t)2(b-t1)2/(at+bt1-t2-t12)Torsional Constant Average Stressts = T/(2t(a-t)(b-t1)near midlength of short sides tL = T/(2t1(a-t)(b-t1)near midlength of long sides Note: Use K/2 for concrete box-girders aft15.65 bft5.5 tft1.333 t1ft0.75tb Kft4408 Tkip-ft1000 tspsi15.64 tLpsi68.08 a t1 Solid square K = (2.25/16)a4a - square side dimension t = 0.601*8T/a3at midpoint of each side a aft10 Kft41406 Tkip-ft1000a tpsi33.4 Solid rectangle K = ab31/3-0.21b/a(1-b4/12a4)for a > b t = 3T/ab21+0.6095(b/a)+0.8865(b/a)2-1.8023(b/a)3+0.91(b/a)4 aft6 bft3.5 b b/a0.583 Kft455 Tkip-ft1000a tpsi398.2 Solid Circle K = pR4/2 t = 2T/pR3 Rft3 Kft4127 Tkip-ft1000 tpsi163.7 T-Section K = K1+K2 K1 = ab31/3-0.21b/a(1-b4/12a4) K2 = cd31/3-0.105d/c(1-d4/192c4) a aft8.5b bft3 cft3 dft3.5c K1ft460 K2ft427 Kft487 d I - Section a K = 2K1+K2b K1 = ab31/3-0.21b/a(1-b4/12a4) K2 = (1/3)cd3 d c aft8.5 bft3 cft3 dft3.5b K1ft460a K2ft443 Kft4162