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1移动模架设计计算书一、移动模架结构简图:二、设计原则:根据桥模板设计规范:1、结构外露的模板变形,为模板构件计算跨度的4001。2、结构隐蔽的模板变形,为模板构件计算跨度的2501。3、模板支承支架的压缩变形值或弹性挠度为8001。三、移动模架计算载荷:根据桥模板设计规范:取标准荷载值:21、新浇混凝土自重:25KN/m32、钢筋自重:1.5KN/m23、施工人员荷载:2.5KN/m24、振捣动荷载:2-4KN/m2(平面模板取2,墙模取4)5、模板自重:(按结构实际重量)6、混凝土侧压力:2210000221210/42115.1115152002522.01:50/19.0.3231.85015.111515200/2522.0mKNFhmt tTmKNTFcc取因梁片浇注高度较低为搅拌站生产能力取取四、造桥机外侧模板计算:1、模板受混凝土压力简图32、底模验算:4a:底模面板验算○1面板计算简图:底模面板采用δ=8mm钢板,宽度1m,筋的间距300mm,故面按三跨连续梁计算。○2混凝土压力:底模左右两侧受混凝土压力最大其值为:1、新浇混凝土自重:25KN/m3F=25×1.54×1=38.5KN2、钢筋自重:1.5KN/m2F=1.5×1.54=2.31KN3、施工人员荷载:2.5KN/m2F=2.5×1.54=3.85KN4、振捣动荷载:2-4KN/m2F=2×1.73=3.08KNF底总=38.5+2.31+3.85+3.08=47.7KNq底=F/0.405×0.3=35.4N/mm○3强度验算5跨度/板厚=30/0.8=40100,属小挠度连续板,弯矩系数为-0.1mmNqlM.3186003004.351.01.022截面抵抗矩:3223200683006mmbhW面板最大应力:22/215/1003200318600mmNmmNWM○4.挠度验算:)(75.040030074.01283001006.21003004.35677.0100677.03544可mmmmEIqlb底模纵筋验算底模纵筋采用H300×150×8×5钢,截面特性Ix=6070cm4Wx=405cm3○1计算简图:6○2纵筋强度强度计算22322/215/1891040576577280.7657728041604.35125.0125.0mmNmmNmmNqlMWMxxx○3挠度验算:4.104004160111060701006.238441604.35538454544mmEIql(可)3.侧模验算侧模面板采用δ=6mm钢板,材料截面特性:4317067128400mmIx342672mmhiWxx,纵筋采用H300×150间距400mm.材料截面特性:Ix=60700000mm4wx=405000mm3○1侧模板承受荷载:7a、混凝土侧压力2/42mKNq混侧b、振捣动载荷2/2mKNq动c、施工人员荷载2/5.2mKNq模2/5.465.2242mKNq总mmNmKNq/14/63.63.05.46面mmNq/194.05.46纵筋○2模板简图○3面板验算:1.计算简图(侧模为连续梁结构按三跨连续梁计算)82.强度验算:3.刚度验算:)(14004007.0170671006.210040014677.0100677.0544可mmmmEIql○4:侧模纵筋验算(侧模纵筋为简支结构按简支梁计算)1、计算简图)(/215/524267224000.22400400141.01.0222可mmNmmNmmNqlMWMxxx92.强度验算)(/215/10140500041100800.41100800416019125.0125.02222可mmNmmNmmNqlMWMxxx3.刚度验算mmmmEIql.1040041606607000001006.238441601953845544(可)五、模板底横梁计算○1模板底横梁结构简图10模板底横梁承受砼梁,模板自重重力,施工荷载。模板底横梁采用焊接形箱梁结构,截面特性:IX=508762×104mm4,Wx=9250×103mm3○2.模板底横梁荷载:1、新浇混凝土梁自重:F混=9000÷32.6×4.16=1148KN2、施工人员荷载:2.5KN/m2F施=2.5×8.33×4.16=86.6KN3、模板自重:F模=1350÷32.6×4.16=172KNP=(F混+F施+F模重)/2=703.3KN○3计算简图:11○4强度验算:WxMx)(/215/1811092501067.12392可mmNmmNplpaMx○5刚度验算:2243(24aLEIFa)=13.3mm1680012600mm(可)附一:弯矩图120.000001670337.500001670337.500001670337.500000.00000MIDAS/CivilPOST-PROCESSORBEAMDIAGRAM弯矩-y1.67034e+0061.51849e+0061.36664e+0061.21479e+0061.06294e+0069.11093e+0057.59244e+0056.07395e+0054.55547e+0053.03698e+0051.51849e+0059.31323e-010ST:nlMAX:3MIN:5文件:模板横梁单位:kN*mm日期:06/18/2006表示-方向X:-0.483Y:-0.837Z:0.259附二:变形图8.6360.00013.37313.3730.0008.636MIDAS/CivilPOST-PROCESSORDEFORMEDSHAPE分析结果X-DIR=0.000E+000NODE=1Y-DIR=0.000E+000NODE=1Z-DIR=-1.337E+001NODE=3COMB.=1.337E+001NODE=3系数=4.711E+001ST:nlMAX:3MIN:5文件:模板横梁单位:mm日期:06/18/2006表示-方向X:-0.483Y:-0.837Z:0.259六:牛腿横梁验算:○1.牛腿横梁简图13P=780KNP=780KNP=780KNP=780KN牛腿承受砼梁,顶模、侧模及底模模板自重重力,施工荷载,牛腿采用焊接箱形梁,截面特性:IX=3495669×104mm4,Wx=58261×103mm3○2.牛腿横梁荷载:1.梁重量:F1=9000KN2.模板重量:F2=1350KN3.主梁重量:F3=1830KN4.移动支座:F3=300KN5.牛腿自重:F4=124KNP总=KN78016300183013509000○3.计算简图:14F=124KNF=780KNF=780KNF=780KNP=780KNF=218KNF=218KNF=124KNF=218KNP=218KN○4强度验算:一,工作状态○1强度验算:WM238/215/1110582611024.62mmNmmN15○2刚度验算:2243(24aLEIFa)ω=1.5mmmm2680021000二.过孔状态○1强度验算:WM239/215/6.521030432106.12mmNmmN○2刚度验算:2243(24aLEIFa)ω=24.6mm2680021000mm附三:牛腿横梁弯矩图(工作状态)160.000000.00000-624000.00000-624000.000000.00000297600.00000-624000.00000-624000.00000297600.00000297600.00000-624000.00000-624000.00000297600.000000.00000-624000.00000-624000.000000.000000.00000MIDAS/CivilPOST-PROCESSORBEAMDIAGRAM弯矩-y2.97600e+0052.13818e+0051.30036e+0054.62545e+0040.00000e+000-1.21309e+005-2.05091e+005-2.88873e+005-3.72655e+005-4.56436e+005-5.40218e+005-6.24000e+005ST:nlMAX:5MIN:7文件:牛腿计算单位:kN*mm日期:06/18/2006表示-方向X:-0.483Y:-0.837Z:0.259附四:牛腿横梁变形图0.5761.4680.5760.0000.2220.2440.2440.2220.0000.5761.4680.5760.0000.2220.2440.2440.2220.000MIDAS/CivilPOST-PROCESSORDEFORMEDSHAPE分析结果X-DIR=0.000E+000NODE=1Y-DIR=0.000E+000NODE=1Z-DIR=-1.468E+000NODE=14COMB.=1.468E+000NODE=14系数=7.188E+002ST:nlMAX:14MIN:12文件:牛腿计算单位:mm日期:06/18/2006表示-方向X:-0.483Y:-0.837Z:0.259附五:牛腿横梁弯矩图(过跨状态)170.00000-348800.000000.00000-1613200.000000.00000-348800.00000-1613200.00000-1613200.00000-1613200.00000-1613200.00000-1613200.00000-1613200.00000-348800.00000-0.00000-1613200.000000.00000-348800.00000-0.00000MIDAS/CivilPOST-PROCESSORBEAMDIAGRAM弯矩-y7.31088e-0090.00000e+000-2.93309e+005-4.39964e+005-5.86618e+005-7.33273e+005-8.79927e+005-1.02658e+006-1.17324e+006-1.31989e+006-1.46655e+006-1.61320e+006ST:nlMAX:16MIN:11文件:牛腿计算3单位:kN*mm日期:06/18/2006表示-方向X:-0.483Y:-0.837Z:0.259附六:牛腿横梁变形图(过跨状态)0.0007.0650.00011.91719.23124.62924.62919.23111.9170.0007.0650.00011.91719.23124.62924.62919.23111.917MIDAS/CivilPOST-PROCESSORDEFORMEDSHAPE分析结果X-DIR=0.000E+000NODE=1Y-DIR=0.000E+000NODE=1Z-DIR=-2.463E+001NODE=10COMB.=2.463E+001NODE=10系数=4.284E+001ST:nlMAX:10MIN:15文件:牛腿计算3单位:mm日期:06/18/2006表示-方向X:-0.483Y:-0.837Z:0.259七.主梁验算:○1主梁承受混凝土梁片、模板重量、主梁自重荷载。F混=9000KN/20=450K18F模=1350KN/20=67.5KNF主梁=1437.4KN/20=72KNF鼻梁=348.4KN/80=4.36KN工作状态:P主梁=+F模+F主梁=450+67.5+72=590KNP鼻梁==4.36K
本文标题:移动模架设计计算
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