8.3屋架主要杆件尺寸和用钢量见表6。活荷载(雪蒋载)标准值0.50kN/m28.4擦条按《解楝条铜墙梁》05SG521选用。∑荷栽标准值0.92+0.5=1,42kN/m28.5隆架选用举例∑荷载设计值1.2X0.92+1.4X0.5=1.80kN/m2[例题1某工程有一个车问跨度为21m,屋架问距为6m,柱项标高为屋架为布线荷线设计值1.42x7.5=10.75kN/m13m,封阅式房屋.基本风压Wo=0.6kN/m2,基本雪压0.5kN/m2,地屡面均布线黄载设计值1.8x7.5=13.50kN/m面粗糙度类别为B类,屋面为夹芯板,C型稼条,擦距1.5m.有天窗,屋架按表3和表4选用GHJ27-5A.上、下弦都连有横向支撑和竖向支撑,结构重要性系数为10。风荷戴验算:屋面永久荷栽标准值为:房屋总高:20+1.75+1.35+0.3=23.4m夹芯板0.20kN/m2风蒋我标准值:k=8:u端=1.0x0.6x1.31x0.6=0.472kN/m2徐条0.05kN/m2按表5,采用一根系杆时[M]=0.87>0.472,满足.屋架悬挂管道0.10kN/m29.详图统一说明∑永久荐载标准值0.35xN/m29.1图中尺寸以mm为单位,杆件轴力以kN为弹位。肉力图中未包括风吸力活荷载(雪荷载)标准值0.50kN/m2荷载及地震作用下的内力组合,∑荷就标准值0.85W/m29.2屋架与天赏架的连接螺控、支撑的安装螺栓和安装拼接用的螺栓除注明者∑苟载设计值1.2X035+士,4X0.5是1.42k/因有天窗,故按表3和表4应选用GWU2113A,材外均采用M76,孔径d17.堡架支座连接用笔控为V24.8.了未注明的角焊键坪病尺y为5mm,共长度不小于70mm:角钢填极挥风荷载验算:缝长度为满挥房座总高:H=12+1.75+1.05+0.2=15m9.4屋架上弦屋脊和端节点绍部尺寸见本图奥第111页。风荷我标准值:W.=0洲=1.0x0.6x1.14x0.6=0.41kN/m9.5支撑布置图中的0为变形缝宽度,由具体工程确定.本例中永久荷截标准值为0.35,接近2型屋架,按表5,[W]=0.32,不9.6与屋架端部经向支撑相连的屋架,其混微土柱顶预埋板下应采取抗剪播满足.故应选用3根系杆或者加大下弦戴面为T147x200.施.[例题2]某工程屋架跨度为30m,屋架问距7.5m,柱顶标高20m,封97图例及连接的标注方法见表7.闭式房屋,基本风压州6=0.6kN/m2,地面粉随度类别为B类,屋面为1.5m×7.5m发泡水泥复合大型屋面板,无天窗,屋架.上,下弦都造有授向支撑和竖向支撑,结构重要性系数为1,0,尾面永久荷载标准值为:发泡水泥复合大垂屋面板0.72kn/m2防水层0.10kN/m2悬挂荷线0.10kN/m∑永久荷载标准值0.92kN/m2总说明0550515-2中楼华进合仪对医志州记计米叛在花贝莲泰1网乙..11T 表6屋架主要杆件戳面尺寸及用钢量屋屋架截面笼格(mm用钢量至普上成杆下弦杆端斜杆其他废开(kg/)GWJ15-1Tw62.5x125x6.59TW62.5x125x6.5x92L50x5250x5,2L56x5.2L63x5758GHJ15-23)w75x150x7x10TW62.5x125x6.5x92L63x5250x5,2L56x5.263x5830CWJ15-4Tw75x150x7x10TH62.5x125x6.5x92L70x52L50x5,2L56x5.2L63x5.2L70x583815mGWJ15-5Tw75x150x7x10Tw62.5x125x6.5x92L70x52L50x5.2L56x5.,2L53x5,2L70x5857GWJ15-6Tw87.5x175x7.5x11nw62.5x125x6.5x92L75x5250x5,2L56x5,263x5.2L75x59330w18-1TwB2.5x125x6.59TM97x150x6x92L56x52L50x5.2L55x5.2L63x5949Gw18-2Tw75x150x7x10Tw97×150x6x92L63x5250x5.,2L56x5.2L63x5993GWJ18-3Tw75x150x7x10TM97x150x6x92L70x52L50x5,2L56x5.263x5,2L70x5100018mGWJ18-4TH75x150x7x10M97x150x6x92L75x5250x5,2L53×5,2L75x51059GWJ18-5TW87.5x175x7.5x11T97x150x6x92L80x52L50x5.2L63x5.2L80x51108GWJ18-6W87.5x175x7.5x11TM97x150x6x92L80x52L50x5,2L63x5,2L80x51127GWJ21-1w62.5x125x6.59w62.5x125x6.5x92L56x52L50x5.2L56x5,2L53x5.2L70x5.10g1GWJ21-2TW75x150x7x10TH62.5x125x6.5x92L56x62L50x5,2L56x5,2L63x5.2L70x51184GWJ21-3TW87.5x175x7.5x11T75x150x7x10,T652.5x125x6.592L63x82L50x5,2L56x5,2L56x8.2L63x5,2L70x5137221mGWJ21-4Tw87.5x175x7.5x11Tw75x150x7x102L63x62L50x5.2L56x5,2L56x8.2L63x5.2L70x51429GWJ21-5T省100x200,8x12.w875x175x7.5x11Twg7.5x175x7.5x11,Tw75x150x7i02L70x62L50x5.2L56x5.2L56x8.2L63x5,2L53x8,2L70x51545CWJ21-6w125x250r14.w100x2008x12-Tw1002000x121w875x175x7.5t11275x82L50x52L56x5,256x8.2L65x5,2L63x8.2L70x51827Gm24-1H75x1507x10=十H7x150x7x02L56.82L50x5.2L56x5.2L53x5.21705,1433GWJ24-2T87.5x175073x11.w75x100x710W75x150x7x02L65x821505,2L56x5,255x8,2L83x5,2L7051533GWJ24-3100x200x8x12.Tw875x175x7.5x11Tw75x150x7x102L70x82L50x5.2L56x5,2L55x6,2L63x5.2L70x5173124mGWJ24-4TW125x230x9x14.Tw875x175x7.5x11TWw875x175a7.5x11,7w75x150x7102L70x82L50x5.2L55x5,2L56x8,2L63x5.263x8.2L70x51612GWJ24-5Tw125x230x9x14.TW100x2009x12Tw100x200x8x12,7Ww87.5x175x7.5x112L75x82L50x5.2156x5,2L56x8,2L63x5,2L83x10.2L70x52052GWJ24-6TW125x250x9x14w100x200x8x12,w87.5x175x7.5x112L75x102L50x5.2L55x5.2L56x8.2L63x5.2L53x8.2L7052448GWJ27-1w87.5x175x7.5x11TM97x150x6x92L63x52L50x5.2L55x5,2L63x51670GWJ27-2TW100x200x8x12TM97x150x6x92L75x52L50x5,2L56x5,2163x5,2L70x51877GWJ27-3W125x250x9rx14.Tw1002008x12TM97x150x6x92L80x52L50x5.2L55x5,2L63x5.2L70x5223227mGWJ27-4Tw125x250x9x14w122x175x7x112L90x62L50x5,2L55x5,2L63x5,2L75x52390GWJ27-5TW125x250x9x14TW100x200x8x122L90x62L50x5.2L56x5,2L53x5,2L75x5,2L80x52390GWJ27-6w150x300x1Gx15.Tw12525C9x14TN147x200x8x122L100x62L50x5.2L56x5,2L63x5.2L70x5.2L80x5,290x62833GWJ30-1T875x175x75x11,Tw75×150x7x10TM97x150x6x92L70x528L50x5,10L56x5.16L65x5.1270x51895GWJ30-2Iw125m2509x14.Tw100x200x8x12TM122x175x8x112L80x524L50x5,10L56x5,2063x5.8L70x5,480x52483GWJ30-3Tw1252509x14.TW100x200x8x12TM147x200x8x122L90x620.50x5,1456x5,16L63x5.8L70x5,4L75x5,4L90x6270830mCJ30-4TW125x250x9x14TM147x200x8x122190x62450x5,1056x5,865x5.16L70x5,480x5,490x62851GWJ30-5Tw150300r10x15.W125x250x9x14IW125250.9×142L100x624505.1q565,8L635.5705.4礼75.4机805.4礼90.6,4礼18053316GWJ30-6w150a300x10x15.w125x250x3x14TM170x250x9x142L100x624L505.1C565,883x5.170x5.41805,81908,10083447注:1中整杆为双角钢十学形数置,其他杆均为双角朝T形戴面:2)表中用钢量推标为各种跨度下A屋架,6m柱苑时的用钢量,不包括支撑和擦条用解,总说明因复野06S0515-2串疾琴卡裤金装对展吉印花淡计宋餐有花夏理泰网2.11
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