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目錄HYPERLINK\l"_Toc232019588"1設(shè)計(jì)說(shuō)明2HYPERLINK\l"_Toc232019589"1.1建筑設(shè)計(jì)說(shuō)明2HYPERLINK\l"_Toc232019590"1.2結(jié)構(gòu)設(shè)計(jì)說(shuō)明5HYPERLINK\l"_Toc232019591"2結(jié)構(gòu)計(jì)算7HYPERLINK\l"_Toc232019592"2.1結(jié)構(gòu)布置方案7HYPERLINK\l"_Toc232019593"2.2結(jié)構(gòu)布置計(jì)算9HYPERLINK\l"_Toc232019599"2.3框架荷載計(jì)算12HYPERLINK\l"_Toc232019608"2.4風(fēng)荷載作用下的位移驗(yàn)算21HYPERLINK\l"_Toc232019609"2.5荷載內(nèi)力計(jì)算23HYPERLINK\l"_Toc232019617"2.6風(fēng)荷載標(biāo)準(zhǔn)值作用下的框架內(nèi)力計(jì)算35HYPERLINK\l"_Toc232019624"2.7框架內(nèi)力組合39HYPERLINK\l"_Toc232019625"2.8截面設(shè)計(jì)與配筋計(jì)算48HYPERLINK\l"_Toc232019626"3雙向板計(jì)算70HYPERLINK\l"_Toc232019627"3.1設(shè)計(jì)資料及尺寸的確定70HYPERLINK\l"_Toc232019628"3.2荷載計(jì)算71HYPERLINK\l"_Toc232019629"4梁式樓梯的配筋計(jì)算77HYPERLINK\l"_Toc232019630"4.1設(shè)計(jì)資料77HYPERLINK\l"_Toc232019631"4.2構(gòu)件尺寸77HYPERLINK\l"_Toc232019632"4.3踏步板計(jì)算77HYPERLINK\l"_Toc232019633"4.4梯段斜梁計(jì)算79HYPERLINK\l"_Toc232019634"4.5平臺(tái)梁設(shè)計(jì)80HYPERLINK\l"_Toc232019638"4.6梯柱82HYPERLINK\l"_Toc232019639"5柱下獨(dú)立基礎(chǔ)設(shè)計(jì)84HYPERLINK\l"_Toc232019640"5.1設(shè)計(jì)資料84HYPERLINK\l"_Toc232019641"5.2修正地基承載力特征值84HYPERLINK\l"_Toc232019642"5.3確定基礎(chǔ)底面面積84HYPERLINK\l"_Toc232019644"5.4基礎(chǔ)高度設(shè)計(jì)85HYPERLINK\l"_Toc232019649"5.5配筋計(jì)算86HYPERLINK\l"_Toc232019653"總結(jié)90HYPERLINK\l"_Toc232019654"參考文獻(xiàn)91HYPERLINK\l"_Toc232019655"致謝921設(shè)計(jì)說(shuō)明1.1建筑設(shè)計(jì)說(shuō)明1.1.1方案設(shè)計(jì)根據(jù)任務(wù)書(shū)的要求,明確工程特點(diǎn)和設(shè)計(jì)要求,擬定設(shè)計(jì)計(jì)劃。查閱相關(guān)規(guī)范、標(biāo)準(zhǔn)圖集后,根據(jù)各用功能分區(qū)來(lái)確定建筑的尺寸。從抗震角度考慮建筑的高限比、高寬比等,從防火角度考慮疏散走廊的寬度和樓梯的尺寸及出口的位置等,從人性化角度考慮底層殘障人坡道的設(shè)計(jì),從美化環(huán)境角度考慮綠化帶的設(shè)計(jì)及從交通便利的角度考慮室外泊車位的設(shè)計(jì)。按比例繪出整個(gè)方案的平面、立面、剖面圖、詳圖及大樣圖。總平面方案見(jiàn)圖1.1,首層平面方案見(jiàn)圖1.2。圖1.1總平面方案1.1.2平面設(shè)計(jì)要根據(jù)設(shè)計(jì)任務(wù)書(shū)的要求,從功能分區(qū),空間的使用性質(zhì)和交通聯(lián)系角度設(shè)計(jì)柱網(wǎng),根據(jù)分割空間的特點(diǎn)和采光大小的要求加上墻體、門(mén)窗等。注意交通聯(lián)系部分的開(kāi)間是否滿足疏散要求,路線是否簡(jiǎn)潔,注意墻體分割空間的大小是否滿足需要,采光是否舒適,根據(jù)民用建筑設(shè)計(jì)規(guī)范、建筑防火和疏散的要求,在北側(cè)東西方向各設(shè)一部開(kāi)間4500mm的樓梯,設(shè)開(kāi)間2700mm的走廊等等。1.1.3立面設(shè)計(jì)立面圖能反映建筑物的造型,作為市區(qū)的建筑,可考慮用在窗、墻、及屋頂上作特殊設(shè)計(jì)以增強(qiáng)立面的美感。底層外墻可用大蘑菇石貼面,其余可用古樸大方的灰的面磚貼面;窗戶可用造型窗;弧角處增設(shè)玻璃幕墻;在層與層之間用深灰色粉涮帶隔開(kāi),樓梯間的屋頂用坡屋頂?shù)鹊取?.1.4剖面設(shè)計(jì)根據(jù)平面和立面的設(shè)計(jì),剖面就能確定了,選擇樓梯間和大廳等剖切即可。1.2結(jié)構(gòu)設(shè)計(jì)說(shuō)明設(shè)計(jì)依據(jù)(1)《建筑結(jié)構(gòu)荷載規(guī)范》(GB50009-2001)(2)《混凝土結(jié)構(gòu)設(shè)計(jì)規(guī)范》(GB50010-2002)(3)《建筑地基基礎(chǔ)設(shè)計(jì)規(guī)范》(GB50007-2002)(4)《混凝土結(jié)構(gòu)施工圖平面整體表示方法制圖規(guī)則和構(gòu)造詳圖》(03G101-1)(5)《混凝土結(jié)構(gòu)施工圖平面整體表示方法制圖規(guī)則和構(gòu)造詳圖》(03G101-2)(6)《混凝土結(jié)構(gòu)施工圖平面整體表示方法制圖規(guī)則和構(gòu)造詳圖》(04G101-4)(7)《民用建筑工程建筑施工圖設(shè)計(jì)深度圖樣》(04J801)(8)《民用建筑工程結(jié)構(gòu)施工圖設(shè)計(jì)深度圖樣》(04G103)(9)《混凝土結(jié)構(gòu)施工圖平面整體表示方法制圖規(guī)則和構(gòu)造詳圖》(06G101-6)(10)《建筑結(jié)構(gòu)設(shè)計(jì)常用數(shù)據(jù)》(06G112)1.2.2自然條件(1)氣象資料:基本風(fēng)壓0.45KN/m2,全年為西北風(fēng);基本雪壓0.45KN/m2,;年最高氣溫39.8攝氏度,最低氣溫-8攝氏度;相對(duì)濕度75%。(2)地質(zhì)條件:擬建場(chǎng)地內(nèi)地勢(shì)平坦,地面標(biāo)高為35.5m;自地表向下依次為:雜填土0.5m;亞粘土5.5m,密實(shí);細(xì)沙5.0m,密實(shí),飽和;地基承載力f=200KN/m2。地下水位標(biāo)高為22.5m,地表水位表高34.5m??拐鹪O(shè)防裂度為6度;Ⅱ類場(chǎng)地。1.2.3使用荷載規(guī)范上人屋面均布活荷載標(biāo)準(zhǔn)值2.0KN/m2樓面活荷載標(biāo)準(zhǔn)值2.0KN/m2屋面雪荷載標(biāo)準(zhǔn)值Sk=μr×S0=1.0×0.45=0.45KN/m22結(jié)構(gòu)計(jì)算2.1結(jié)構(gòu)布置方案堅(jiān)向承重體系鋼筋混凝土框架結(jié)構(gòu)體系橫向承重體系:現(xiàn)澆肋梁樓蓋基礎(chǔ)形式:柱下獨(dú)立基礎(chǔ),設(shè)計(jì)等級(jí)為丙級(jí)基本情況:6層鋼筋混凝土現(xiàn)澆框架結(jié)構(gòu),雙向梁系,可上人屋面,抗震等級(jí)為四級(jí),耐火等級(jí)二級(jí),設(shè)計(jì)使用年限50年;首層層高4.2m,總高為26.2m,其余均為3.6m;墻體采用粉煤灰輕渣空心磚,尺寸為390mm×240mm×190mm,樓板厚110mm;?、嗵?hào)軸線的一榀框架作結(jié)構(gòu)計(jì)算。2.2結(jié)構(gòu)布置計(jì)算各層梁、柱的混泥土強(qiáng)度等級(jí)為C30(fc=14.3N/mm2,ft=1.43N/mm2),各層板為的混泥土強(qiáng)度等級(jí)為C25(fc=11.9N/mm2,ft=1.27N/mm2)??蚣芰航孛娉叽缈蚣芰焊遠(yuǎn)=(1/8~1/18)L,而梁寬b=(1/2~1/4)h(1)縱梁:柱網(wǎng)縱向梁最大L=7500mm,梁高h(yuǎn)=(1/8~1/18)L,即h=938mm-417mm,取h=500mm,梁寬b=(1/2~1/4)h,即b=250mm-125mm,同時(shí)滿足b≥200mm的構(gòu)造要求,取b=250mm。(2)橫梁:同理,梁高h(yuǎn)=675mm-300mm,取h=500mm,梁寬b=250mm-125mm,同時(shí)滿足b≥200mm的構(gòu)造要求,取b=250mm。(3)走道橫梁:同理,梁高h(yuǎn)=338mm-150mm,取h=400mm,梁寬b=200mm-100mm,同時(shí)滿足b≥200mm的構(gòu)造要求,取b=200mm。結(jié)構(gòu)布置情況見(jiàn)表1.1表1.1:結(jié)構(gòu)布置情況樓層混凝土強(qiáng)度等級(jí)橫梁縱梁走道梁1~6C305400mm7500mm2700mm250mm×5000mm250mm×5000mm200mm×4000mm框架柱截面尺寸柱的截面尺寸按軸壓比估算:,其中N=SgEn,且hc=bc≥250mm——地震作用組合后柱軸壓比增大系數(shù),邊柱取1.3,不等跨內(nèi)柱取1.25,等跨取1.2S——簡(jiǎn)支狀態(tài)計(jì)算柱的負(fù)載面積gE——單位建筑面積上重力荷載代表值,取12~14KN/m2n——驗(yàn)算截面以上的樓層層數(shù)S=(5.4×2.7+5.4×7.5)/2=27.54m2Ac=1.25×27.54m2×12×103N/mm2×6/14.3N/mm2,則hc=bc==416mm,取方柱hc=bc=450mm!注意:結(jié)構(gòu)計(jì)算的三個(gè)假設(shè):=1\*GB3①平面結(jié)構(gòu)假定:認(rèn)為每一方向的水平力只由該方向的抗側(cè)力結(jié)構(gòu)承擔(dān),垂直于該方向的抗側(cè)力結(jié)構(gòu)不受力;=2\*GB3②樓板在自身平面內(nèi)在水平荷載作用下,框架之間不產(chǎn)生相對(duì)位移;=3\*GB3③不考慮水平荷載作用下的扭轉(zhuǎn)作用。一榀框架計(jì)算簡(jiǎn)圖?、噍S上的一榀框架計(jì)算,設(shè)框架柱嵌固于基礎(chǔ)頂面,框架梁與柱剛接,各層柱的截面尺寸一致,因此梁跨等于柱截面之間的距離。底層柱高從基礎(chǔ)頂面到二層樓面,由地質(zhì)條件和室內(nèi)外高差得基礎(chǔ)頂面到一層樓面距離為0.95m,故首層柱高為4.2m+0.95m=5.15m。其余各層柱高從樓面算至上一層樓面,即層高,均為3.6m,由此可繪出框架的計(jì)算簡(jiǎn)圖,如圖2.2??蚣芰褐€剛度計(jì)算(1)梁線剛度:對(duì)于現(xiàn)澆樓板結(jié)構(gòu),梁慣性矩,邊框架梁I=1.5I0,中框架梁I=2I0,其中E=3.0×107kN/m2I0=bh3/12,左邊跨梁:=EI/l=2×3.0×107kN/m2××0.25m×(0.5m)3/7.5m=2.08×104中跨梁:=EI/l=2×3.0×107kN/m2××0.2m×(0.4m)3/2.7m=2.37×104右邊跨梁:=EI/l=2×3.0×107kN/m2××0.25m×(0.5m)3/7.2m=2.17×104(2)柱線剛度:底層柱:=EI/l=3.0×107kN/m2××(0.45m)3/5.15m=1.99×1042-6層各柱:=EI/l=3.0×107kN/m2××(0.45m)3/3.6m=2.84×104令2-6層柱線剛度i=1.0,其余各桿件相對(duì)線剛度為:底層柱:i=1.99×104/2.84×104=0.7左邊跨梁:i=2.08×104/2.84×104=0.73中跨梁:i=2.37×104/2.84×104=0.83右邊跨梁:i=2.17×104/2.84×104=0.76框架線剛度計(jì)算簡(jiǎn)圖見(jiàn)圖2.3。圖2.2框架計(jì)算簡(jiǎn)圖圖2.3框架線剛度計(jì)算簡(jiǎn)圖2.3框架荷載計(jì)算2.3.1恒載標(biāo)準(zhǔn)值計(jì)算.1屋面40厚C20細(xì)實(shí)混凝土,內(nèi)置雙向4@2000.04m×17kN/m3=0.68kN/m210厚細(xì)砂保護(hù)層+塑料薄膜隔離層0.01m×18kN/m3=0.18kN/m2高分子卷材一層0.1kN/m220厚1:3水泥砂漿找平0.02m×20kN/m3=0.4kN/m21:6蛭石混凝土找坡,最薄處20厚0.13m×8kN/m3=1.04kN/m2110厚現(xiàn)澆鋼筋混凝土板0.11m×25kN/m3=2.75kN/m215厚混合砂漿板底抹灰0.015m×17kN/m3=0.255kN/m2合計(jì)5.405kN/m2.2各層走廊10厚面層水磨石地面20厚水泥砂漿打底路0.65kN/m2素水泥漿結(jié)合層一道110厚現(xiàn)澆鋼筋混凝土板0.11m×25kN/m3=2.75kN/m215厚混合砂漿板底抹灰0.015m×17kN/m3=0.255kN/m2合計(jì)3.655kN/m2.3標(biāo)準(zhǔn)層樓面80cm×80cm地磚面層,水泥砂漿溝縫0.01m×19.8kN/m3=0.198kN/m230厚水泥砂漿找平0.03m×20kN/m3=0.6kN/m2110厚現(xiàn)澆鋼筋混凝土板0.11m×25kN/m3=2.75kN/m215厚混合砂漿板底抹灰0.015m×17kN/m3=0.255kN/m2合計(jì)3.803kN/m2.4梁自重梁b×h=250mm×500mm0.25m×(0.5m-0.11m)×25kN/m3=2.438kN/m梁側(cè)抹灰10厚混合砂漿0.015m×[(0.5m-0.11m)×2+0.25m]×17kN/m3=0.263kN/m合計(jì)2.701kN/m梁b×h=200mm×400mm0.2m×(0.4m-0.11m)×25kN/m3=1.45kN/m梁側(cè)抹灰10厚混合砂漿0.015m×[(0.45m-0.11m)×2+0.2m]×17kN/m3=0.199kN/m合計(jì)1.649kN/m基礎(chǔ)梁b×h==200mmm×400mmm00.25m××0.4m××25kN//m3=2.5kkN/m合計(jì)2..5kN/m.5柱自重梁b×h=4550mm××450mmm((0.4m))2×25kN//m3=5.0663kN//m柱側(cè)抹灰10厚混混合砂漿0.0115m×0.45mm×4×17kN//m3=0.4559kN/m合計(jì)5.5222kN/m.6外縱墻自重重①底層:縱墻自重(4..65m-2.8mm-0.5mm-0.4mm)×0.224m×8kN/mm3=1.822kN/m鋁合金窗22.8m×0.35kkN/m3=0.988kN/m大蘑菇石外墻貼面面(44.2m-2.8mm)×0.0012m×19.8kkN/m3=0.288kN/m內(nèi)墻粉刷(44.2m-2.8mm)×0.336kN//m3=0.500kN/m合計(jì)3..58kNN/m②標(biāo)準(zhǔn)屋:縱墻自重(33.6m-1.8mm-0.5mm)×0.224m×8kN/mm3=2.500kN/m鋁合金窗1.8m××0.35kkN/m3=0.633kN/m深灰色外墻貼面(3.6m-1..8m)××0.0008m×19.8kkN/m3=0.299kN/m內(nèi)墻面粉刷(3..6m--1.8m))×0.336kN//m3=0.655kN/m合計(jì)4.077kN/m.7內(nèi)縱墻(標(biāo)標(biāo)準(zhǔn)層)內(nèi)縱墻自重(3.66m-00.5m)×0.224m×8kN/mm3=5.955kN/m內(nèi)墻面粉刷3..6m××0.366kN/mm3×2=2.559kN//m合計(jì)8..54kNN/m.8女兒墻(墻墻高10000mm,100mmm混凝土壓頂頂,粉刷內(nèi)墻面)女兒墻自重11m×0.24mm×8kN/mm3=1.922kN/m深灰色外墻貼面(3.6m+2××1.1mm)×0.55kN/m2=1.222kN/m內(nèi)墻面粉刷0.11m×0.24mm×25kN//m3=0.6kkN/m合計(jì)3.74kN/mm.9天溝(現(xiàn)澆澆天溝,深灰灰色外墻面磚磚,示意圖見(jiàn)見(jiàn)圖2.4)(0.3m-0..08m+0.6m)×0.008m×25kN//m3+(0.6mm+0.3m)×0.5kN//m2+0.0088m×0.3mm×19.8kkN/m3=2.114kN//m圖2.4天溝示示意圖2.3.2活載標(biāo)標(biāo)準(zhǔn)值計(jì)算.1屋面、樓面面活荷載標(biāo)準(zhǔn)準(zhǔn)值上人屋面2.00kN/m2走廊樓面2.5kkN/m22.2雪荷載標(biāo)準(zhǔn)準(zhǔn)值Sk=1.0×0.45kNN/m2=0.455kN/m2屋面活荷載與雪荷荷載不同時(shí)考考慮,取兩者者中的大值2.0kNN/m2豎向荷載下框架受受荷總圖2.3.3.1A~B軸間的框架架梁①屋面板傳荷載:板傳至梁上的三角角形或梯形荷荷載等效為均均布荷載,荷荷載傳遞示意意圖見(jiàn)圖2..5。恒載:5.4055kN/m2×(1-2×0.362+0.3663)×2.7m×2m=199.24kkN/m活載:2.0kNN/m2×(1-2×0.362+0.3663)×2.7mm×2m=88.50kNN/m②樓面板傳荷載:恒載:3.8033kN/m2×(1-2×0.362+0.3663)×2.7m×2m=199.24kkN/m活載:2.0kNN/m2×(1-2×0.362+0.3663)×2.7mm×2m=88.50kNN/m圖2.5板傳荷荷載示意圖A~B軸間的框架架梁均布荷載載為屋面梁恒載==梁自重+板傳荷載=2.7001kN//m+19..24kNN/m=211.94kkN/m活載=板傳荷載=8.500kN/m樓面梁恒載==梁自重+板傳荷載+墻自重=2.7001kN//m+16..16kNN/m+8..54kN//m=27..40kNN/m活載=板傳荷載=8.500kN/m.2B~C軸間間的框架梁①屋面板傳荷載:恒載:5.4055kN/m2×5/8×1.35mm=3.822kN/mm活載:2.0kNN/m2×5/8×1.35mm=1.669kN/mm②走廊樓面板傳荷載載:恒載:3.6555kN/m2××5/8×1.35mm=3.088kN/mm活載:2.5kNN/m2×5/8×1.35mm=2.100kN/mmB~C軸間的框架架梁均布荷載載為屋面梁恒載==梁自重+板傳荷載=1.6449kN//m+3.882kN//m=5.447kN//m活載=板傳荷載=1.699kN/m樓面梁恒載==梁自重+板傳荷載=1.6449kN//m+3.008kN//m=4.773kN//m活載=板傳荷載=2.100kN/m2.3.3.3C~D軸間的框架架梁①屋面板傳荷載:恒載:5.4055kN/m2×(1-2×0.37552+0.37753)×2.7m×2m=222.29kkN/m活載:2.0kNN/m2×(1-2×0.37552+0.37753)×2.7mm×2m=99.85kNN/m②樓面板傳荷載:恒載:3.8033kN/m2×(1-2×0.37552+0.37753)×2.7m×2m=188.73kkN/m活載:2.0kNN/m2×(1-2×0.37552+0.37753)×2.7m×2m=99.85kNN/mA~B軸間的框架架梁均布荷載載為屋面梁恒載==梁自重+板傳荷載=2.7001kN//m+22..29kNN/m=244.99kNN/m活載=板傳荷載=9.855kN/m樓面梁恒載==梁自重+板傳荷載+墻自重=2.7001kN//m+18..73kN//m+8.554kN/mm=29.997kN/mm活載=板傳荷載=9.855kN/m2.3.3.4A軸和D軸柱縱向集集中荷載的計(jì)計(jì)算頂層柱恒載=女兒兒墻天溝自重重+梁自重+板傳荷載=(3.74kNN/m+2..14N/mm)×5.4m+22.701kkN/m×((5.4m-00.45m))+(19..24kN//m)/2×5.4m=997.06kN頂層柱活載=板傳傳活載=(8.50kkN/m))/2×5.4m=222.95kkN標(biāo)準(zhǔn)層柱恒載=墻墻自量+梁自重+板傳荷載=4.07kN//m×(5.4m-00.45m))+2.077kN/m××(5.4m-00.45m))+(16..16kN//m)/2×5.4m=777.15kkN標(biāo)準(zhǔn)層柱活載=板板傳活載=(8.50kkN/m))/2×5.4m=222.95kkN基礎(chǔ)頂面恒載=底底層外縱墻自自重+基礎(chǔ)梁自重重=3.58kN//m×(5.4m-00.45m))+1.6449kN//m×(5.4m-00.45m))=25..89kN.5B軸和CC軸柱縱向集集中荷載的計(jì)計(jì)算頂層柱恒載=梁自自重+板傳荷載=2.701kNN/m×(5.4m-00.45m))+5.4005kN/mm2×5/8×2.7m×5.4m+55.405kkN/m2×(1-2×0.252+0.2553)×1.35mm×5.4m=883.98kkN頂層柱活載=板傳傳活載=2.0kN/mm2×5/8×2.7m×5.4m+22.0kN//m2×(1-2×0.252+0.2553)×1.35mm×5.4m=331.32kkN標(biāo)準(zhǔn)層柱恒載=墻墻自量+梁自重+板傳荷載=2.701kNN/m×(5.4m-00.45m))+5.4005kN/mm2×5/8×2.7m×5.4m+55.405kkN/m2×(1-2×0.252+0.2553)×1.35mm×5.4m=883.98kkN標(biāo)準(zhǔn)層柱活載=板板傳活載=2.0kN/mm2×5/8×2.7m×5.4m+22.5kN//m2×(1-2×0.252+0.2553)×1.35m×5.4m=335.60kkN基礎(chǔ)頂面恒載=底底層內(nèi)縱墻自自重+基礎(chǔ)梁自重重=1.649kNN/m×((5.4m-00.45m))+[(55.4m-00.45m)×(4.2m-00.5m)-2m]×0.244m×8kkN/m3=333.78kNN.6柱荷載標(biāo)準(zhǔn)層:5.5222kN/m×3.66m=19..88kNN底層:5.5222kN/mm×5.155m=28..44kNN由此得出框架在豎豎向荷載作用用下的受荷總總圖如圖6所示(圖中中數(shù)值均為標(biāo)標(biāo)準(zhǔn)值)風(fēng)荷載計(jì)算作用在屋面梁和樓樓面梁節(jié)點(diǎn)處處的集中風(fēng)荷荷載標(biāo)準(zhǔn)值見(jiàn)見(jiàn)表2.1?;撅L(fēng)壓=0..45查風(fēng)壓高高度變化系數(shù)數(shù)表,因建設(shè)設(shè)地點(diǎn)位于南南昌市市區(qū),地地面粗糙度為為C類風(fēng)荷載體體型系數(shù)風(fēng)振系數(shù)數(shù),對(duì)于建筑筑物高度H<30m的取1.0下層柱高高;上層柱高高,對(duì)頂層為為女兒墻高度度的兩倍;迎風(fēng)面的的寬度,B=5.4mm。豎向荷載受荷簡(jiǎn)圖圖見(jiàn)圖2.6,等效節(jié)點(diǎn)點(diǎn)風(fēng)荷載見(jiàn)圖圖2.7,集中風(fēng)荷載載標(biāo)準(zhǔn)值見(jiàn)2.1。圖2.6豎向荷載載受荷簡(jiǎn)圖表2.1:集中風(fēng)荷載標(biāo)準(zhǔn)值值離地高度/m/m/m22.650.891.01.30.453.62.28.1519.050.821.01.30.453.63.69.3315.450.751.01.30.453.63.68.5311.850.741.01.30.453.63.68.428.250.741.01.30.453.63.68.424.650.741.01.30.454.653.69.64圖2.7等效節(jié)點(diǎn)點(diǎn)風(fēng)荷載(KN)2.4風(fēng)荷載作用用下的位移驗(yàn)驗(yàn)算側(cè)移剛度D值側(cè)移剛度D值見(jiàn)表表2.2表2.2:橫向2~6層D值的計(jì)計(jì)算構(gòu)件名稱(kN/m)A軸柱2×2.08×1104KN·m=00.7322×2.844×104KN·m0.2677032B軸柱2×(2.08××104+2.377×104)KN·m=1.5572××2.84××104KN·m0.44011570C軸柱2×(2.37××104+2.177×104)KN·m=1.6602××2.84××104KN·m0.44411676D軸柱2×2.17×1104KN·m=0.7762××2.84××104KN·m0.2757231=(7032+111570++116766+72311)kN//m=375509kNN/m表2.3:橫向底層D值的計(jì)計(jì)算構(gòu)件名稱(kN/m)A軸柱2.08×1044KN·m=11.0511.99×1104KN·m0.5086877B軸柱(2.08×1044+2.377×104)KN·m=2.2241..99×1004KN·m0.6468745C軸柱(2.37×1044+2.177×104)KN·m=2.2281..99×1004KN·m0.5827879D軸柱2.17×1044KN·m=1.0091..99×1004KN·m0.5156972=(6877+88745+77879+66972)kN/m==304733kN/mm風(fēng)荷載作用下框架架的側(cè)移計(jì)算算水平荷載作用下框框架的層間側(cè)側(cè)移按下式計(jì)計(jì)算:式中第j層的總剪力力;第第j層所有柱的的抗側(cè)剛度之之和;第j層的層間側(cè)側(cè)移。風(fēng)荷載作用下框架架側(cè)移計(jì)算見(jiàn)見(jiàn)表2.4表2.4:風(fēng)荷載作用下框架架側(cè)移計(jì)算層次68.158.15375090.00021/1656859.3317.48375090.00051/772548.5326.01375090.00071/519238.4234.43375090.00091/392128.4242.85375090.00111/315219.6452.49304730.00171/2990側(cè)移驗(yàn)算:層間側(cè)側(cè)移最大值1/22290<1//550,滿足2.5荷載內(nèi)力計(jì)計(jì)算為簡(jiǎn)化計(jì)算,考慮慮如下幾種單單獨(dú)受荷情況況:恒載作用2.5.2活載載作用因?yàn)榛詈奢d與恒載載的比值不大大于1,可不考慮慮活載的最不不利布置,采采用活載滿布布,求得的跨跨中彎矩在內(nèi)內(nèi)力組合時(shí)應(yīng)應(yīng)乘以1.1~11.2的系數(shù)予以以增大,這里里對(duì)跨中高彎彎矩取1.1的增大系數(shù)數(shù)。風(fēng)荷載作用(從左左向右或從右右向左)前面兩種情況,框框架在豎向荷荷載作用下采采用迭代法計(jì)計(jì)算。對(duì)于第第三種情況框框架在水平荷荷載作用下,采采用D值法進(jìn)行計(jì)計(jì)算。恒荷載標(biāo)準(zhǔn)值作用用下的內(nèi)力計(jì)計(jì)算AC跨梁均均布荷載、集集中荷載以及及集中荷載偏偏心引起的固固端彎矩構(gòu)成成節(jié)點(diǎn)不平衡衡彎矩,其余余跨梁由均布布荷載以及集集中荷載偏心心引起的固端端彎矩構(gòu)成節(jié)節(jié)點(diǎn)不平衡彎彎矩。,MF=-Fe,其剪力:、——簡(jiǎn)支梁支座左端和和右端的剪力力表準(zhǔn)值順為為正。、——兩端彎矩標(biāo)準(zhǔn)值,繞繞桿端順為正正。軸力:——上柱傳來(lái)的軸力、——左右傳來(lái)的軸力。跨中彎矩計(jì)算在實(shí)際分布荷載作作用下,框架架梁的跨中彎彎矩M按下式計(jì)算算:恒載及活載作用下下的M、N、V見(jiàn)圖2.8,2.9,2.10;2.11,2.12,2.132.5.4迭代法計(jì)計(jì)算過(guò)程圖2.8恒載彎彎矩值(KN·m)圖2.9恒載剪剪力值(KN)圖2.10恒載載軸力值(KN)圖2.11活載載彎矩值(KN·m)圖2.12活載載剪力值(KN)(括號(hào)內(nèi)為考慮活活載滿布時(shí)跨跨中彎矩增大大1.1和系數(shù)后的的彎矩)圖2.13活載載軸力值(KN)2.6風(fēng)荷載標(biāo)準(zhǔn)值作用用下的框架內(nèi)內(nèi)力計(jì)算框架在風(fēng)荷載(從從左向右吹)下下的內(nèi)力用D值法(改進(jìn)進(jìn)的反彎點(diǎn)法法)進(jìn)行計(jì)算算。其步驟為為:求各柱反彎點(diǎn)處的的剪力值;求各柱反彎點(diǎn)高度度;求各柱的桿端彎矩矩及梁端彎矩矩;求各柱的軸力和梁梁剪力。第i層第m柱所分配的剪力為為:,。框架柱反彎點(diǎn)位置置,,其計(jì)算結(jié)果如如表2.5,2.6,2.7,2.8。表2.5:A軸框架柱反彎點(diǎn)位位置層號(hào)h/m63.60.730.30000.31.0853.60.730.40000.41.4443.60.730.4150000.4151.49433.60.730.450000.451.6223.60.730.500-0.050.451.6215.151.050.6450-0.0500.5953.064表2.6:B軸框架柱反彎點(diǎn)位位置層號(hào)h/m63.61.570.37850000.37851.36353.61.570.42850000.42851.53443.61.570.450000.451.6233.61.570.47850000.47851.72323.61.570.50000.51.815.152.240.550000.552.833表2.7:C軸框架柱反彎點(diǎn)位位置層號(hào)h/m63.61.60.380000.381.36853.61.60.430000.431.54843.61.60.450000.451.6233.61.60.480000.481.72823.61.60.50000.51.815.152.280.550000.552.833表2.8:D軸框架柱反彎點(diǎn)位位置層號(hào)h/m63.60.760.30000.31.0853.60.760.40000.41.4443.60.760.430000.431.54833.60.760.450000.451.6223.60.760.500-0.0045550.45451.63615.151.090.6410-0.045500.58553.067框架各柱的桿端彎彎矩、梁端彎彎矩按下式計(jì)計(jì)算,計(jì)算過(guò)過(guò)程如表2..9,2.10,2.11,2.12。中柱邊柱表2.9:風(fēng)荷載作用下A軸軸框架柱剪力力和桿端彎矩矩的計(jì)算層數(shù)68.153750972310.1891.891.084.7692.0444.769517.483750972310.1893.641.447.8565.2379.900426.013750972310.1895.231.49411.0197.81716.257334.433750972310.1896.811.6213.47711.02721.294242.853750972310.1898.381.6216.59513.57827.622152.493047369720.22612.353.06425.75637.83939.334表2.10:風(fēng)荷載作用下B軸軸框架柱剪力力和桿端彎矩矩的計(jì)算層數(shù)68.1537509115700.3083.121.3686.9574.2643.2563.256517.4837509115700.3085.991.54812.2939.2737.7498.808426.0137509115700.3088.621.62017.06313.96112.32614.011334.4337509115700.30811.211.72820.98719.37316.35618.592242.8537509115700.30813.081.80024.84824.84820.69623.526152.493047387450.28715.682.83336.34244.41828.63732.553表2.11:風(fēng)荷載作用下C軸軸框架柱剪力力和桿端彎矩矩的計(jì)算層數(shù)68.1537509116760.3113.151.0807.9313.3994.1404.140517.4837509116760.3116.051.44013.0668.718.5957.87426.0137509116760.3118.71.54817.85613.4713.86812.699334.4337509116760.31111.321.62022.41418.33918.73217.153242.8537509116760.31113.941.63627.37322.80723.86221.851152.493047378790.25914.153.06729.48143.40127.29424.993表2.12:風(fēng)荷載作用下D軸軸框架柱剪力力和桿端彎矩矩的計(jì)算層數(shù)68.153750972310.1931.951.3634.372.6614.37517.483750972310.1933.751.5437.7235.79110.385426.013750972310.1935.41.6210.6928.74816.483334.433750972310.1937.031.72313.18912.10221.937242.853750972310.1938.651.815.57015.5727.672152.493047369720.22912.512.83328.99835.44244.568框架柱軸力與梁端端剪力的計(jì)算算結(jié)果見(jiàn)表22.13。表2.13:框架柱軸力與梁端端剪力層數(shù)梁端剪力/(kNN)柱軸力/(kN)AB跨VbABBCVbBCCD跨VbCDA軸NcAB軸C軸D軸NcDVbAB-VbBCNcBVbBC-VbCDNcC61.072.741.18-1.07-1.67-1.671.561.561.1852.356.452.54-3.42-4.09-5.763.915.473.7243.8110.334.05-6.16-6.51-10.616.2710.186.5935.0213.825.43-8.83-8.80-15.328.3914.679.4826.4417.556.88-11.46-11.11-19.9110.6719.0712.3119.0622.179.66-15.51-13.10-24.2112.5023.1816.542.7框架內(nèi)力力組合內(nèi)力求得后,根據(jù)據(jù)最不利的原原則進(jìn)行組合合,分別考慮慮恒、活荷載載由可變荷載載效應(yīng)控制的的組合和由永永久荷載控制制的組合,比比較兩種組合合的內(nèi)力后,取取最不利者。由由于構(gòu)件控制制截面的內(nèi)力力值取支座邊邊緣處,因此此,進(jìn)行組合合前應(yīng)先計(jì)算算各控制截面面處的內(nèi)力值值。梁支座邊緣處的內(nèi)內(nèi)力值:——支座邊緣截面的彎彎矩標(biāo)準(zhǔn)值——支座邊緣截面的剪剪力標(biāo)準(zhǔn)值M——梁柱中線交點(diǎn)處的的彎矩標(biāo)準(zhǔn)值值V——與M相應(yīng)的梁中線交點(diǎn)點(diǎn)處的剪力標(biāo)標(biāo)準(zhǔn)值——梁?jiǎn)挝婚L(zhǎng)度的均布布荷載標(biāo)準(zhǔn)值值——梁端支座寬度柱上端控制截面在在上層梁底,柱柱下端控制截截面在下層梁梁頂,按軸線線計(jì)算簡(jiǎn)圖算算得的柱端內(nèi)內(nèi)力值宜換算算到控制截面面處的值。為為簡(jiǎn)化起見(jiàn),也也可采用軸線線處的內(nèi)力值值,此時(shí)算得得鋼筋用量偏偏保守。各內(nèi)內(nèi)力組合見(jiàn)表表2.14~~2.20。表2.14:用于承載力計(jì)算的的框架梁由可可變、永久荷荷載效用控制制的基本組合合(梁AB)承載力使用狀態(tài)下下梁(AB跨)內(nèi)力組組合表樓層截面位置內(nèi)力種類恒載活載左風(fēng)右風(fēng)可變荷載控制基本本組合永久荷載控制基本本組合最大控制內(nèi)力最小控制內(nèi)力最大控制內(nèi)力①②③④1.2*①+1..4*(②+0.6*③)1.2*①+1..4*(②+0.6*④)1.2*①+1..4*(0.7②+③)1.2*①+1..4*(0.7②+④)1.35*①+11.4*0..7*②Mmax及相應(yīng)的的VMmin及相應(yīng)的的V︳V︳max及相應(yīng)的MM6左M-61.47-22.824.53-4.53-101.91-109.52-89.79-102.47-105.35-89.79-109.52-101.91V76.3229.461.07-1.07133.73131.93121.95118.96131.90121.95131.93133.73中M70.6930.760.76-0.76128.53127.25116.04113.91125.58128.53127.25右M-68.66-26.43-3.023.02-121.93-116.86-112.52-104.07-118.59-104.07-121.93-116.86V-78.36-30.481.07-1.07-135.81-137.60-122.40-125.40-135.66-125.40-135.81137.605左M-93.05-29.459.37-9.37-145.02-160.76-127.40-153.64-154.48-127.40-160.76-145.02V96.5129.942.35-2.35159.70155.75148.44141.86159.63148.44155.75159.70中M76.2025.331.08-1.08127.81125.99117.78114.75127.69127.81114.75右M-93.63-29.68-7.227.22-159.97-147.84-151.55-131.33-155.49-131.33-159.97-147.84V-96.67-30.002.35-2.35-156.03-159.98-142.11-148.69-159.90-148.69-156.03159.981左M-85.22-28.4137.29-37.29-110.71-173.36-77.90-182.31-142.89-77.90-182.31-110.71V95.8729.739.06-9.06164.28149.06156.86131.50158.56156.86131.50164.28中M81.8027.855.35-5.35141.64132.66132.94117.96137.72141.64117.96右M-90.27-28.13-26.6026.60-170.05-125.36-173.13-98.65-149.43-98.65-173.13-125.36V-97.31-30.219.06-9.06-151.46-166.68-133.69-159.06-160.97-159.06-133.69166.68注:表中彎矩的單單位為kN·m,,剪力的單單位為kN,左表示示左支座,中中表示跨中,右右表示右座表2.15:用于承載力計(jì)算的的框架梁由可可變、永久荷荷載效用控制制的基本組合合(梁BC)承載力使用狀態(tài)下下梁(BC跨)內(nèi)力組組合表樓層截面位置內(nèi)力種類恒載活載左風(fēng)右風(fēng)可變荷載控制基本本組合永久荷載控制基本本組合最大控制內(nèi)力最小控制內(nèi)力最大控制內(nèi)力①②③④1.2*①+1..4*(②+0.6*③)1.2*①+1..4*(②+0.6*④)1.2*①+1..4*(0.7②+③)1.2*①+1..4*(0.7②+④)1.35*①+11.4*0..7*②Mmax及相應(yīng)的的VMmin及相應(yīng)的的V︳V︳max及相應(yīng)的MM6左M-21.33-8.602.64-2.64-35.42-39.85-30.33-37.72-37.22-30.33-39.85-30.33V5.231.442.74-2.7410.595.9911.523.858.4711.525.9911.52中M19.05-8.890.44-0.4410.7810.0414.7613.5317.0117.0110.04右M-23.40-9.62-3.523.52-44.50-38.59-42.44-32.58-41.02-32.58-44.50-42.44V-7.07-2.362.74-2.74-9.49-14.09-6.96-14.63-11.86-14.63-9.496.965左M-14.46-4.027.36-7.36-16.80-29.16-10.99-31.60-23.46-10.99-31.60-10.99V5.412.176.45-6.4514.954.1117.65-0.419.4317.65-0.4117.65中M11.20-3.270.13-0.138.978.7510.4210.0511.9210.428.75右M-13.99-4.47-7.157.15-29.05-17.04-31.18-11.16-23.27-11.16-31.18-31.18V-5.25-2.576.45-6.45-4.48-15.320.21-17.85-9.61-17.850.210.211左M-20.04-6.2027.56-27.56-9.58-55.888.46-68.71-33.138.46-68.718.46V5.252.0422.17-22.1727.78-9.4739.34-22.749.0939.34-22.7439.34中M17.26-5.832.66-2.6614.7810.3218.7211.2717.5918.7210.32右M-20.22-6.95-22.3022.30-52.73-15.26-62.300.15-34.110.15-62.30-62.30V-5.39-2.7022.17-22.178.37-28.8721.92-40.15-9.92-40.1521.9221.92注:表中彎矩的單單位為kN·m,,剪力的單單位為kN,左表示示左支座,中中表示跨中,右右表示右座表2.16:用于承載力計(jì)算的的框架梁由可可變、永久荷荷載效用控制制的基本組合合(梁CD)承載力使用狀態(tài)下下梁(CD跨)內(nèi)力組組合表樓層截面位置內(nèi)力種類恒載活載左風(fēng)右風(fēng)可變荷載控制基本本組合永久荷載控制基本本組合最大控制內(nèi)力最小控制內(nèi)力最大控制內(nèi)力①②③④1.2*①+1..4*(②+0.6*③)1.2*①+1..4*(②+0.6*④)1.2*①+1..4*(0.7②+③)1.2*①+1..4*(0.7②+④)1.35*①+11.4*0..7*②Mmax及相應(yīng)的的VMmin及相應(yīng)的的V︳V︳max及相應(yīng)的MM6左M-71.55-28.103.87-3.87-121.95-128.45-107.98-118.82-124.13-107.98-128.45-121.95V83.0732.631.18-1.18146.36144.37133.31130.01144.12133.31144.37146.36中M74.9933.100.12-0.12136.43136.23122.59122.26133.67136.43122.26右M-61.84-23.41-4.104.10-110.43-103.54-102.89-91.41-106.43-91.41-110.43-103.54V-85.70-33.851.18-1.18-149.24-151.22-134.36-137.67-148.87-137.67-149.24151.225左M-94.01-32.248.39-8.39-150.90-165.00-132.66-156.15-158.51-132.66-165.00-150.90V101.3133.072.54-2.54170.00165.74157.54150.42169.18170.00150.42170.00中M44.1926.680.900.9091.1491.1480.4380.4385.8091.1480.43右M-92.94-30.96-9.829.82-163.12-146.62-155.62-128.12-155.81-128.12-163.12-146.62V-100.99-33.412.54-2.54-165.83-170.10-150.37-157.49-169.08-157.49-165.83170.101左M-89.94-29.8425.12-25.12-128.60-170.80-102.00-172.34-150.66-102.00-172.34-128.60V101.9932.959.66-9.66176.63160.40168.20141.16169.98168.20141.16176.63中M50.5729.928.64-8.64109.8395.31102.1077.9197.59109.8377.91右M-84.25-27.45-4.2442.40-143.09-103.91-133.94-68.64-140.64-68.64-143.09-103.91V-100.31-33.559.66-9.66-159.23-175.46-139.73-166.78-168.30-166.78-159.23175.46注:表中彎矩的單單位為kN·m,,剪力的單單位為kN,左表示示左支座,中中表示跨中,右右表示右座表2.17:正常使用狀態(tài)下梁梁(AB跨)內(nèi)力組組合表樓層截面位置內(nèi)力恒載活載左風(fēng)右風(fēng)組合方式Ms,maxMs,min①②③④①+②+0.6③①+②+0.6④①+0.7②+③①+0.7②+④6左M-61.47-22.824.53-4.53-81.57-87.01-72.91-81.97-72.91-87.01中M70.6930.760.76-0.76101.91100.9992.9891.46101.9191.46右M-68.66-26.43-3.023.02-96.90-93.28-90.18-84.14-84.14-96.905左M-93.05-29.459.37-9.37-116.88-128.12-104.30-123.04-104.30-128.12中M76.2025.331.08-1.08102.18100.8895.0192.85102.1892.85右M-93.63-29.68-7.227.22-127.64-118.98-121.63-107.19-107.19-127.641左M-85.22-28.4137.29-37.29-91.26-136.00-67.82-142.40-67.82-142.40中M81.8027.855.35-5.35112.86106.44106.6595.95112.8695.95右M-90.27-28.13-26.6026.60-134.36-102.44-136.56-83.36-83.36-136.56注:表中彎矩的單單位為kN·m,,左表示示左支座,中中表示跨中,右右表示右座表2.18:正常使用狀態(tài)下梁梁(BC跨)內(nèi)力組組合表樓層截面位置內(nèi)力恒載活載左風(fēng)右風(fēng)組合方式Ms,maxMs,min①②③④①+②+0.6③①+②+0.6④①+0.7②+③①+0.7②+④6左M-21.33-8.602.64-2.64-28.35-31.51-24.71-29.99-24.71-31.51中M19.05-8.890.44-0.4410.429.9013.2712.3913.279.90右M-23.40-9.62-3.523.52-35.13-30.91-33.65-26.61-26.61-35.135左M-14.46-4.027.36-7.36-14.06-22.90-9.91-24.63-9.91-24.63中M11.20-3.270.13-0.138.017.859.048.789.047.85右M-13.99-4.47-7.157.15-22.75-14.17-24.27-9.97-9.97-24.271左M-20.04-6.2027.56-27.56-9.70-42.783.18-51.943.18-51.94中M17.26-5.832.66-2.6613.039.8315.8410.5215.849.83右M-20.22-6.95-22.3022.30-40.55-13.79-47.39-2.79-2.79-47.39注:表中彎矩的單單位為kN·m,左表示左左支座,中表表示跨中,右右表示右座表2.19:正常使用狀態(tài)下梁梁(CD跨)內(nèi)力組組合表樓層截面位置內(nèi)力恒載活載左風(fēng)右風(fēng)組合方式Ms,maxMs,min①②③④①+②+0.6③①+②+0.6④①+0.7②+③①+0.7②+④6左M-71.55-28.103.87-3.87-97.33-101.97-87.35-95.09-87.35-101.97中M74.9933.100.12-0.12108.16108.0298.2898.04108.1698.04右M-61.84-23.41-4.104.10-87.71-82.79-82.33-74.13-74.13-87.715左M-94.01-32.248.39-8.39-121.22-131.28-108.19-124.97-108.19-131.28中M44.1926.680.900.9071.4171.4163.7763.7771.4163.77右M-92.94-30.96-9.829.82-129.79-118.01-124.43-104.79-104.79-129.791左M-89.94-29.8425.12-25.12-104.71-134.85-85.71-135.95-85.71-135.95中M50.5729.928.64-8.6485.6775.3180.1562.8785.6762.87右M-84.25-27.45-4.2442.40-114.24-86.26-107.71-61.07-61.07-114.24注:表中彎矩的單單位為kN·m,左表示左左支座,中表表示跨中,右右表示右座表2.20:C軸柱內(nèi)力組合表樓層截面位置內(nèi)力種類恒載活載左風(fēng)右風(fēng)可變荷載控制基本本組合永久荷載控制基本本組合最大控制內(nèi)力最小控制內(nèi)力最大控制內(nèi)力①②③④1.2*①+1..4*(②+0.6*③)1.2*①+1..4*(②+0.6*④)1.2*①+1..4*(0.7②+③)1.2*①+1..4*(0.7②+④)1.35*①+11.4*0..7*②Nmax及相應(yīng)的的M、VNmin及相應(yīng)的的M、V︳M︳max及相應(yīng)的NN、V3上M-49.46-16.0722.41-22.41-63.03-100.67-43.73-106.47-82.52-63.03-106.47-106.47N868.11350.4314.67-14.671544.661520.011405.691364.621515.371544.661364.621364.62下M48.2815.67-18.3418.3464.4795.2847.6298.9780.5364.4798.9798.97N887.99370.3114.67-14.671596.341571.701449.031407.951561.691596.341407.951407.95V27.158.8211.32-11.3254.4435.4257.0725.3845.3054.4425.3825.381上M-31.52-5.1229.48-29.48-20.23-69.76-1.57-84.11-47.57-20.23-84.11-84.11N1266.02538.1323.18-23.182292.082253.132079.042014.142236.492292.382014.142079.04下M15.7610.24-43.4043.40-3.2169.70-31.8189.7131.31-3.2189.7189.71N1294.66566.5723.18-23.182366.262327.322141.282076.382303.032366.362076.382076.38V9.182.9814.16-14.1627.083.2933.76-5.8915.3127.08-5.89-5.89注:表中彎矩的單單位為kN·m,,軸力、剪剪力的單位為為kN,左表示示左支座,中中表示跨中,右右表示右座2.8截面設(shè)計(jì)計(jì)與配筋計(jì)算算梁、柱混凝土強(qiáng)度度等級(jí)為C30:14.33N/mm2,1.43N/mm2,2.01N/mm2,縱向鋼筋強(qiáng)度HHRB3355:,,箍筋HPB235:,框架柱截面設(shè)計(jì)因?yàn)镃軸軸力最大,這里里只取C軸計(jì)算。(1)軸壓比驗(yàn)算底層柱:Nmaxx=23666.26KNN軸壓比:NN=22366.226×103N=00.817≤[1.055]滿足要求。AAc14.3NN/mm2×(450mmm)2(2)截面尺寸復(fù)核取h0=450mm-335mm=4415mm,Vmax=333.76KNN因?yàn)閔w/b=415mmm/450mmm=0.922<4,所以0=0.25××1.0×114.3NN/mm2×450mmm×415mmm×10-3=6677.6KN>>33.766KN,滿足要求求。(3)正截面受彎承載載力計(jì)算柱同一截面分別承承受正反向彎彎矩,故采用用對(duì)稱配筋。C軸柱14.3N//mm2×450mmm×415mmm×0.55×110-3=14669.00kkN1層:從柱的內(nèi)力組合可可見(jiàn)N>Nb,為小偏壓,選選用M大、N大的組合,最最不利組合為為:M=-3.21kkN·m和M=899.71kNN·mN=2366.226kNN==2076..38kN第一組內(nèi)力M=-33.21kNN·mNN=23666.26kNN在彎矩中水平風(fēng)荷荷載產(chǎn)生的彎彎矩為36.466%<75%%,所以柱的的計(jì)算長(zhǎng)度==1.0H==5.15mm=(3.21kNN·m/22366.226kN))×103=13.566mm,={20mmm,450mmm/30mm}max=13.56mm++20mm=33.566mm0.5×14.33N/mm2×(450mmm)2/23666.26kNN=0.6612=5.15m/0..45m=111.4<115則1+1×(51550mm/415mmm)2×0.6112×1.00==1.708811400×333.56mm/415mmm=1.708×333.56mm+450mmm/2-35mm=247mmm=0.652>==0.55=855mm2>>0.5%//2=467mm2每側(cè)選用3118,實(shí)配鋼筋筋=763mm2第二組內(nèi)力M=1556.23kkN·mN=1500.778kN.彎矩中由風(fēng)荷載產(chǎn)產(chǎn)生的彎矩為為60.766%<75%%,柱的計(jì)算算長(zhǎng)度=1..0H=5..15m=(89.71kkN·m/22076.338kN))×103=43.2mmm,={{20mm,450mmm/30mm}max=43.2mm++20mmm=63.2mmm0.5×14.33N/mm2×(450mmm)2/20766.38kNN=0.6697=5.15m/0..45m=111.4<115則1+1×(51550mm/415mmm)2×0.6997×1.00==1.4311400×663.2mmm/415mmm=1.43×633.2mmm+450mmm/2-35mm=280mmm=0.711>==0.55=642mm2>>0.5%//2=467mm2每側(cè)選用3118,實(shí)配鋼筋筋=763mm2綜上,選用318配筋,實(shí)配配鋼筋=7663mm223層:最不利內(nèi)力M=1106.477kN·mN=1364.662kN.彎矩中由風(fēng)荷載產(chǎn)產(chǎn)生的彎矩為為<75%,柱的計(jì)算算長(zhǎng)度=1..25H=44.5m=(106.477kN·m/11364.662kN))×103=78mm,=={20mmm,450mmm/30mm}max=78mm+200mm=98mmm0.5×14.33N/mm2×(450mmm)2/13644.62kNN=1.006>1.00,取1.0=5.15m/0..45m=111.4<115則1+1×(51550mm/415mmm)2×1.0××1.0=1..311400×998mm//415mmm=1.3×98mm+450mmm/2-35mm=317mmmN<Nb=14669KN且=0.511<=0.555=101mm2<<0.5%//2=467mm2每側(cè)選用3118,實(shí)配鋼筋筋=763mmm2(4)垂直于彎矩作用用平面的受壓壓承載力驗(yàn)算算1層:Nmax=23666.26KNNl0/b=5.15m/0.45m=11.4,查表=0.9660.9(fcA++fy’As’)=0.99×0.966(14.33N/mm2×(450mmm)2+300NN/mm2×763//mm2×2)×110-3=28997.5KNN>Nmaax=23666.26KKN,滿足要要求

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