整理24米鋼屋架計(jì)算書(shū)絕對(duì)實(shí)用

1、一、設(shè)計(jì)資料x(chóng)二、選題。圖 222222222三、鋼材選擇及焊接方法和焊條型號(hào)四、屋蓋支撐系統(tǒng)布置圖 。 和 五、荷載計(jì)算22荷載組合） ） F1F2） F3F=4六、內(nèi)力計(jì)算1圖圖圖表1FF=4.67kN3N=24.57kN24KN全跨FFN=F11234FF13上弦桿1下弦桿2349斜腹桿 豎桿 七、桿件截面設(shè)計(jì)1、上弦桿截面計(jì)算N=。l 150.8cm0 x 屋 架 平 面 外 根 據(jù) 支 撐 和 內(nèi) 力 變 化 取l 2150.0300.0cm0y2l l0 x0y 60 0.807 設(shè)圖N 770.94103Af ll1508i x2.51cm i 5.00160100100y0 x

2、60yA 、 i i A=c ,i = , yxyx=。l i 150.8 2.8552.9l i 300.00 7.7838.56，x0 xxy0yy 只需求出 0.842xyxxN770.94103180.95N/mm f 215N/mm2 2A 0.8425060 x2、下弦桿截面計(jì)算 l 300cm0 x屋 架 平 面 外 根 據(jù) 支 撐 布 置 取l 1185cm0yN 766.93A 33567.122圖 fn Ac ,i =,i xy AA。nl11854.50l0 x115.8 263.33 3500yiixyN 766.93103N mm2213.4 /fN mm 215 /

3、2A36003、斜腹桿截面計(jì)算 N= l =l =lxyl =l i =ixyxyA=c , =i, = ixy254.3l0 x 99.34 bixxl254.36.8437.18 1500y屬于類截面biyy 0.559xyxx圖 N434.16103174.14N/mm f 215N/mm22A 0.5594460 x N=l =l=,l =lmxyN 348.45103A 1620.72fn圖 A=c ,i =,i =xyll209.3261.60 x124.6 89.9 3500yii2.91xyxyN 348.45103208.2N/mm f 215N/mm2 2A1674 3N=

4、l l =lxyA ,i ,i =2xyl230.2y0 x 94.3 bixxl287.83.8574.8 1500ybiyxxy y 只需求出0.596圖 xyxxN275.92103188.2N/mm f 215N/mm22A 0.5962460 xy 4Nl =l=,l =lxyN 187.66103A xx872.82fny圖 圖Ac ,i ,i xyll229.4286.72.770 x133.4 10 3500yiixyxyN 187.66103173.4N/mm f 215N/mm22A1082 5N=l l =lxyAc ,i = ,i =xyl251.01.900 x 13

5、2.1 bixyxl313.83.1898.7 1500ybiyyxx 只需求出yxyx 0.378圖 xN 124.77103173.5N/mm f 215N/mm22A 0.3781902x 6N=l =l=,l =lx0yN 56.81103A 264.22fnA=c ,i = ,i =xyyl250.20 x 145.5 ixyxl312.72.77xx 112.9 3500yiyyN 56.81103252.5N/mm f 215N/mm2圖 A1082 7N= l l =lmxyAc ,i = ,i =xyl272.41.600 x 139.0 bixyxl3405110.2 15

6、00ybi3.09yy xx 只需求出，查表，0.349yxyxxN42.46103122.2N/mm f 215N/mm22圖 A 0.349996x 8N=)l l =lmxy Ac ,i =,i =xyl271.41.930 x 140.6 ixyxl339.33.06110.9 1500yiy 只需求出圖 xyx 0.342xN71.55103143.5N/mm f 215N/mm22A 0.3421458x4、豎桿截面計(jì)算 91N=l = l =lxyAc ,i =,i =xyl201.50 x 107.2 bixxl201.53.0765.6 1500ybiyy 150 只需求出

7、0.510 xyxxN25.3610321.3N/mm f 215N/mm22 A 0.510 2332x2N=l l x0y， Ac ,i =,i =xyl184.00 x 97.9 bixxl230.03.0774.9 1500ybiyy 只需求出 0.568xyxxN50.7210338.3N/mm f 215N/mm22 A 0.568 2332x3N=，l l xy， Ac ,i =,i =xyl208.00 x 110.7 bi1.88xyxl260.03.0784.71500ybiy 只需求出 0.489xyxxN50.7210344.5N/mm f 215N/mm2 2 A 0

8、.489 2332x4N=l l xy， Ac ,i =,i =xyl0 x123.4bixyxl290.03.0794.5 1500ybiy 只需求出 0.418xyxxN50.7210352.0N/mm f 215N/mm22A 0.4182332x 5N， l l x0yN 97.893A 2fn， Ac ,i =,i =xyl288.00 x 153.2 ixxl320.03.07104.1 3500yiyy N 97.89342.0N/ f 215N/22A圖中豎桿截面圖)max-770.94766.89088325785469八、節(jié)點(diǎn)設(shè)計(jì)圖” 。1下弦 2 節(jié)點(diǎn)h l 和l fww

9、 f w=160N / mm2t hf 63mmlw3N h l f 2663w3fw3ff0.7N N /2 0.7348.4510 103.3x0.5x1033312mm12mml320.7h f20.761601wff0.3N N /2 0.3348.4510 3l320.7h f20.76160w2wff（ hf80mmlw3N 0.7h l f 2680Nw3fw3ff0.7N N /2 0.7275.9210 65587.23l 12106.9mm1224.8mm 320.7h f20.76160w1wff0.3N N /2 0.3275.9210 65587.23l w 2320

10、.7h f20.76160wff h。fl 63mmw3N h lf 8632Nwf3fw3f2k N 20.350.7210 30432N N 137733.123230.7N0.750.7210320.78160l 1635.8mm20.7h fw1wff0.350.7210320.78l w224.4 fh ，f2/3343.9810362.23N/220.78f160N/mm22上弦 11節(jié)點(diǎn)：） 2中l(wèi) 63mmw3l 160mm1l 60mmw2桿圖2l 140mmw3 h =fN 0.7h lf 28Nwf3fw3f2k N 20.30434.1610 260496N N3230

11、.70434.16103l l 20.780.30434.16103l l 20.78 h 6 h t/214/27mm f，f P hfP13.2N/ N/222x0.7h l2x0.7x7x-14）ff wN 440.25-0440.25N(K N) (P/21.22)(0.25 (50.72/21.22)222270.52N/mm2220.7h l20.76405-12）ff w0.8f 0.8160128N/mmw2f圖 fh f3l wl 2 l 2h ）拼接角鋼的長(zhǎng)度+弦桿桿端空隙，拼接角鋼長(zhǎng)度取 ，豎肢需切去swf 1410529mm hfh l fw0.15x746.60 x103N22x0.7f6x0.15x746.60 x10 x100-22.8）3M22x0.72fM（