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1、結(jié)構(gòu)設(shè)計(jì)的依據(jù)及方法設(shè)計(jì)的指導(dǎo)思想和要求設(shè)計(jì)的指導(dǎo)思想設(shè)計(jì)嚴(yán)格遵守我國現(xiàn)行的規(guī)范或行業(yè)標(biāo)準(zhǔn),包括混凝土結(jié)構(gòu)設(shè)計(jì)規(guī)范GB50010-2002,建筑抗震設(shè)計(jì)規(guī)范GB50011-2001,建筑結(jié)構(gòu)荷載規(guī)范GB50009-2001,高層建筑混凝土結(jié)構(gòu)技術(shù)規(guī)程JGJ3-2002。本設(shè)計(jì)的抗震設(shè)防烈度為8度,設(shè)計(jì)基本地震加速度值為0.2g,須進(jìn)行抗震設(shè)計(jì)??拐鹪O(shè)計(jì)遵循建筑結(jié)構(gòu)抗震設(shè)計(jì)規(guī)范GB50011-2001的有關(guān)規(guī)定,并由概念設(shè)計(jì),抗震計(jì)算和抗震構(gòu)造設(shè)計(jì)三部分組成。概念設(shè)計(jì)是指在規(guī)范、規(guī)程中難以做出定量規(guī)定的問題,必須由工程師運(yùn)用概念進(jìn)行分析判斷,綜合各種因素得出結(jié)論,以便選擇最佳的解決方案。這些概念

2、和經(jīng)驗(yàn)要貫穿在整個(gè)結(jié)構(gòu)設(shè)計(jì)中,包括對計(jì)算簡圖的審核和對計(jì)算結(jié)果的處理中。概念設(shè)計(jì)是抗震設(shè)計(jì)的重要組成部分??拐鹩?jì)算主要是在多遇地震下,按反應(yīng)譜理論計(jì)算地震作用,用彈性方法計(jì)算內(nèi)力及位移,并用極限方法設(shè)計(jì)構(gòu)件。對于重要建筑和有特殊功能要求的建筑,用時(shí)程分析法補(bǔ)充計(jì)算,并進(jìn)行大震作用下的變形驗(yàn)算,即兩階段設(shè)計(jì)方法,這樣便可以定量地估計(jì)地震反應(yīng),以保證結(jié)構(gòu)有足夠的剛度和承載力。構(gòu)造設(shè)計(jì)在抗震設(shè)計(jì)中同樣占有重要作用。在設(shè)計(jì)時(shí)應(yīng)采用各種措施改善結(jié)構(gòu)的抗震性能,保證結(jié)構(gòu)的延性,滿足設(shè)防烈度下的要求。同時(shí)也要求通過構(gòu)造措施實(shí)現(xiàn)在罕遇地震作用下避免建筑物倒塌的目的。設(shè)計(jì)要求抗震設(shè)計(jì)目標(biāo)即三水準(zhǔn)抗震目標(biāo):小震不

3、壞,中震可修,大震不倒。建筑抗震設(shè)計(jì)規(guī)范GB50011-2001對三個(gè)水準(zhǔn)的抗震設(shè)防要求規(guī)定為:第一水準(zhǔn):當(dāng)遭受低于本地區(qū)設(shè)防烈度的多遇地震影響時(shí),建筑物一般不受損壞或不需修理仍可以使用;第二水準(zhǔn):當(dāng)遭受相當(dāng)于本地區(qū)設(shè)防烈度的地震影響時(shí),建筑物可能破壞,但經(jīng)一般修理即可恢復(fù)正常使用;第三水準(zhǔn):當(dāng)遭受高于本地區(qū)設(shè)防烈度的罕遇地震影響時(shí),建筑物不致倒塌或發(fā)生危險(xiǎn)及生命的嚴(yán)重破壞。地震作用的隨機(jī)性,不確定性,再加上結(jié)構(gòu)進(jìn)入彈塑性狀態(tài)和不同層次的設(shè)計(jì)要求,給抗震設(shè)計(jì)帶來一定的難度??拐鹪O(shè)計(jì)的理論還不完善,抗震設(shè)計(jì)還帶有一定程度的經(jīng)驗(yàn)性。結(jié)構(gòu)方案的選擇結(jié)構(gòu)方案.1 建筑類別的確定根據(jù)建筑抗震設(shè)計(jì)規(guī)范GB

4、50011-2001第條之規(guī)定,本建筑為丙類建筑。.2 結(jié)構(gòu)體系選擇本建筑物總高度32.5米,主體工程八層,其平面尺寸為53.015.0米??蚣芙Y(jié)構(gòu)體系:采用梁、柱組成的結(jié)構(gòu)體系作為建筑豎向承重結(jié)構(gòu),并同時(shí)承受水平荷載。適用于多層及高度不大的高層建筑。優(yōu)點(diǎn)是建筑平面布置靈活,可做成需要較大空間的會(huì)議室、餐廳、辦公室和工業(yè)車間、實(shí)驗(yàn)室等,加擱墻后也可以做成小房間??蚣芙Y(jié)構(gòu)的構(gòu)件主要是梁和柱,可以預(yù)制或現(xiàn)澆,布置比較靈活,立面也可變化。剪力墻結(jié)構(gòu)體系:利用建筑物的墻體作為豎向承重和抵抗側(cè)向力的結(jié)構(gòu)。墻體同時(shí)也作為維護(hù)及房間分隔構(gòu)件。現(xiàn)澆鋼筋混凝土剪力墻結(jié)構(gòu)的整體性好,剛度大,在水平力作用下側(cè)向變形

5、很小。墻體截面積大,承受力要求也比較容易滿足。剪力墻的抗震性能也較好??蚣芗袅Y(jié)構(gòu)體系:在框架中設(shè)置一些剪力墻,就成了框架剪力墻結(jié)構(gòu)體系。在這種體系中,剪力墻常常負(fù)擔(dān)大部分水平荷載,結(jié)構(gòu)總體剛度加大,側(cè)移減小。同時(shí),由于框架和剪力墻協(xié)同工作,通過變形協(xié)調(diào),使各層層間變形趨于均勻,改善了純框架和純剪力墻結(jié)構(gòu)中上部和下部層間變形相差較大的缺點(diǎn),因而在地震作用下可減少非結(jié)構(gòu)構(gòu)件的破壞。綜合以上幾種體系的受力特點(diǎn),結(jié)合本工程的實(shí)際要求。根據(jù)工程經(jīng)驗(yàn),選用框架-剪力墻結(jié)構(gòu)體系。依據(jù)建筑抗震設(shè)計(jì)規(guī)范GB50011-2001第條依照烈度、結(jié)構(gòu)類型及房屋的高度。8度地區(qū)框架-剪力墻結(jié)構(gòu),總高度小于60米時(shí)。

6、框架的抗震等級為二級,剪力墻抗震等級為一級。據(jù)高層建筑混凝土結(jié)構(gòu)技術(shù)規(guī)程JGJ 3-2002第4.2.3條,框剪結(jié)構(gòu)在8度地區(qū)高寬比不宜超過4,本設(shè)計(jì)高寬比:32.5152.174,滿足要求。結(jié)構(gòu)布置.1 柱網(wǎng)尺寸根據(jù)建筑物實(shí)際使用工程的要求,縱向采用等柱距7.5米,局部8.0米,橫向柱網(wǎng)為6.0米和3.0米。長寬比根據(jù)高層建筑混凝土結(jié)構(gòu)技術(shù)規(guī)程JGJ3-2002第條, L/B=53/15=3.535, 滿足要求。剪力墻布置及間距根據(jù)高層建筑混凝土結(jié)構(gòu)技術(shù)規(guī)程JGJ3-2002第條,第8.1.7條,第8.1.8條,1.框架剪力墻結(jié)構(gòu)應(yīng)設(shè)計(jì)成雙向抗側(cè)力體系,抗震設(shè)計(jì)時(shí),結(jié)構(gòu)兩主軸方向均應(yīng)布置剪力

7、墻。2.縱橫剪力墻組成L型、型等形式,并貫通建筑物全高。3.剪力墻對稱布置在建筑物的樓梯間和電梯間,間距小于40米。.4 變形縫據(jù)高層建筑混凝土結(jié)構(gòu)技術(shù)規(guī)程JGJ 3-2002第條,本結(jié)構(gòu)平面布置簡單規(guī)則,結(jié)構(gòu)布置對稱,剛度分布均勻,且無局部重量差別過大,可不設(shè)變形縫。初步確定梁、柱、板的尺寸.1 板厚的確定根據(jù)規(guī)范要求,民用建筑樓板厚度最小為60mm,根據(jù)本設(shè)計(jì)情況,取樓板厚100mm。.2 框架梁截面根據(jù)高層建筑混凝土結(jié)構(gòu)技術(shù)規(guī)程JGJ 3-2002第條,框架梁截面高度按hb=(1/101/18)lb確定。本設(shè)計(jì)取梁截面尺寸:750450,次梁取1/151/20 lb,本設(shè)計(jì)取500300

8、。.3 框架柱根據(jù)高層建筑混凝土結(jié)構(gòu)技術(shù)規(guī)程JGJ 3-2002第條,柱截面由軸壓比控制: cN/fcAc0.2max=0.032用底部剪力法計(jì)算結(jié)構(gòu)總底部剪力:等效總重力荷載Geq0.85G0.85121426.28103212.34kNFEK1Geq0.115103212.3411869.42kNTj=0.5041.4Tg,故n=0.08 Tj+0.07=0.12頂部附加地震作用F=n FEK=1424.33kN3、層間地震剪力分配:見表2-7第i個(gè)樓層處作用的等效地震力: Fi=10563.78 (2-5)4、計(jì)算倒三角形荷載:表2-8 層間地震剪力分配層數(shù)Hi(m)Gi(kN)GiHi

9、(105kNm)GiHi/ GiHi橫向縱向Fi(kN)Vi(kN)FiHi(103kNm)Fi(kN)Vi(kN)FiHi(103kNm)832.515444.465.0190.2222345.22345.1676.2181970.51970.564.042728.515263.014.3500.1922028.24373.4057.8051704.23674.848.571624.515263.013.7390.1651743.06116.4242.7041464.65139.635.882520.515263.013.1290.1381457.87574.2229.8851224.963

10、64.325.111416.515263.012.5180.1111172.68746.8019.348985.267349.516.257312.515263.011.9080.084887.49634.1611.092745.618095.19.32028.515263.011.2970.057602.110236.35.118505.958601.14.30114.514403.790.6480.029306.410542.71.379257.418858.51.15822.61243.55204.642.2 縱向地震作用1、基本周期:本設(shè)計(jì)按8度,第一組,類場地條件,根據(jù)建筑抗震設(shè)計(jì)規(guī)

11、范第、3.2.3、5.1.4條規(guī)定查得:特征周期:Tg=0.35s設(shè)計(jì)基本地震加速度:0.2g水平地震影響系數(shù)最大值:max0.16取結(jié)構(gòu)阻尼比為0.05,衰減指數(shù)0.9 阻尼調(diào)整系數(shù)取1.0由1.940,查框架剪力墻結(jié)構(gòu)自振周期系數(shù)表1.31Tj1.3132.523736.19/(9.811.482109)1/20.701s修正后Tj0.80.7010.561s1(Tg/Tj)0.9max0.0860.2maxFEK1Geq0.086103212.348876.26kNTj0.7011.4Tg 計(jì)算頂點(diǎn)附加地震作用取 n0.08 Tj0.070.126頂點(diǎn)附加地震作用 FnFEK0.1261

12、0837.301365.50kN為簡化計(jì)算,將各樓層質(zhì)點(diǎn)I的水平地震作用Fi和頂點(diǎn)附加水平地震作用F,按基底彎矩和基底剪力相等原則折算成倒三角形連續(xù)分布荷載和頂點(diǎn)集中荷載計(jì)算。基底彎矩:橫向:M0FiHiFH243.549103+1424.3332.5=289.840103kNm 縱向:M0FiHiFH204.642103+1365.5032.5=249.021103kNm基底剪力:橫向:V0=qH/2F =823.21432.5/2+1424.33=14801.83kN縱向:V0=qH/2F =707.27932.5/2+1365.50=12858.78kN2、層間地震剪力分配: Fi=88

13、76.26 (2-6)3、計(jì)算倒三角形荷載:M0=FiHi=(1/3)qH2 q表2-9 倒三角形荷載計(jì)算荷載形式橫向縱向F q HM0289.840103(1/3)qH2q=3M0/H2=3289.840103/32.52=823.214kN/mV0=qH/2F =14801.83kNM0249.021103(1/3)qH2q=3M0/H2=3249.021103/32.52=707.279kN/mV0=qH/2F =12858.78kN框架-剪力墻協(xié)同工作計(jì)算2.3.2.1 總內(nèi)力計(jì)算1、內(nèi)力計(jì)算:由值及荷載類型查計(jì)算圖表,結(jié)果見表3-3,其中, VF()/V0=(12)Vw()/V0 (

14、2-7)表2-10 框架剪力墻協(xié)同工作計(jì)算樓層標(biāo)高xm=x/H橫向:1.574,M0289.840103 kNm V014801.83 kN縱向:1.940, M0249.021103kNm V012858.78kNMw/M0Mw 103kNmVw/V0VW 103kNmVF/V0VF 103kNmMw/M0Mw 103kNmVw/V0VW 103kNmVF/V0VF 103kNm832.5100-0.27-4.000.314.58800-0.33-4.240.303.858728.50.88-0.02-5.80-0.05-0.740.263.848-0.03-7.47-0.12-1.540.

15、364.629624.50.75-0.01-2.900.152.2200.273.996-0.04-9.960.11.2860.374.758520.50.630.038.700.334.8840.263.848000.253.2150.374.758416.50.510.128.980.476.9560.243.5520.0512.450.384.8860.364.629312.50.380.257.970.629.1770.202.9600.1434.860.536.8150.303.85828.50.260.3395.650.7410.950.152.2200.2459.770.668.

16、4870.253.21514.50.140.48139.10.8612.730.101.4800.3792.140.8210.540.151.929000.68197.11.0014.80000.57141.91.0012.86002、框架剪力墻內(nèi)力匯總:各層框架柱剪力由上下層處VF近似計(jì)算: VFi=(VFi-1+VFi)/2 (2-8)表2-11 框架-剪力墻協(xié)同工作內(nèi)力匯總樓層橫向縱向總剪力墻總框架總剪力墻總框架MW(103kNm)VW(103 kN)VF(103 kN)MW(103kNm)VW(103 kN)VF(103 kN)80-3.9964.5880-4.2433.8587-5.

17、80-0.7403.848-7.471-1.5434.6296-2.92.2203.996-9.9611.2864.75858.74.8843.84803.2154.758428.986.9563.55212.4514.8864.629357.979.1772.96034.8636.8153.858295.6510.9532.22059.7658.4873.2151139.1212.7291.48092.13810.5441.9290197.0914.8010141.9412.8590.2 側(cè)移計(jì)算1、高層建筑混凝土結(jié)構(gòu)技術(shù)規(guī)程JGJ 3-2002第條規(guī)定:按彈性方法計(jì)算的框架剪力墻結(jié)構(gòu)樓層層

18、間最大位移與層高之比應(yīng)滿足:u/h1/8002、層間位移和頂點(diǎn)位移計(jì)算:倒三角形荷載作用下:頂點(diǎn)位移 yH=11qH4/(120EJd) (2-9)橫向:yH11823.21432.54/(12031.21108)0.0270m縱向:yH11707.27932.54/(12014.82108)0.0488m層間側(cè)移:ue= ynyn-1表2-12 側(cè)移計(jì)算樓層Hi (m)= Hi /H橫向1.574,yH0.0270m縱向:1.940,yH0.0488my()/ yHy()(mm)ue=yn-yn-1(mm)y()/ yHy()(mm)ue=yn-yn-1 (mm)832.510.5414.5

19、803.1600.4019.522.44728.50.880.4612.4202.4300.3517.083.42624.50.750.379.9902.4300.2813.662.44520.50.630.287.5601.8900.2311.222.92416.50.510.215.6701.8900.178.303.42312.50.380.143.7802.1600.104.882.4428.50.260.061.6201.0800.052.441.4614.50.140.020.5400.5400.020.980.983、位移驗(yàn)算:橫向:層間側(cè)移:對于h4.5m,ue=0.540mm

20、,ue/h=0.540/4500=1/83331/800對于h4m,ue=3.160mm,ue/h=3.160/4000=1/12661/800 均滿足要求縱向:層間側(cè)移:對于h4.5m,ue=0.98mm,ue/h =0.98/4500=1/45921/800對于h4m,ue=4.05mm,ue/h =3.42/4000=1/11702時(shí)按單向板計(jì)算,荷載沿短跨方向傳遞。當(dāng) l/b2時(shí),按雙向板計(jì)算,荷載沿塑性絞線向四周邊傳遞。圖2-16 支承梁承擔(dān)荷載圖.2 逐層計(jì)算豎向荷載 以下計(jì)算中:qb梁自重 qw墻自重 g樓板荷載 p活荷載 G集中恒荷載 P集中活荷載 M彎矩第八層:1、分布荷載:

21、BC跨:qb9.22kN/m qw3.39kN/m g4.971.875218.638kN/m p0.251.87520.9kN/m CD跨:qb9.22 kN/m DE跨:qb9.22kN/m qw3.39kN/m g4.971.875218.638kN/m p0.251.87520.9kN/m2、集中荷載:B柱:由縱向主梁傳來:次梁上的力:qb4.47kN/m g4.971.875218.875kN/m p0.251.87520.9kN/m 傳遞到主梁:G14.47618.875(2.25+1.875)/252.34kNP10.9(2.25+1.875)/21.86kN主梁上:qb+ qw

22、9.223.390.4510.75 kN/m g4.971.8759.319kN/m p0.251.8750.47 kN/mG(7.510.753.759.31952.34)/283.96kNP0.453.75+1.86/21.77kNB柱集中力:GB83.962167.92 kN PB1.7723.54kNC柱:由縱向主梁傳來:次梁上的力:qb4.47kN/m g4.971.875218.875kN/m p0.251.87520.9kN/m 傳遞到主梁:G14.47618.875(2.25+1.875)/252.34kNP10.9(2.25+1.875)/21.86kN主梁上:qb+ qw9

23、.223.390.4510.75 kN/m g14.971.8759.319kN/m p10.251.8750.47 kN/m g24.971. 57.455kN/m p20.251.50.375 kN/mG(7.510.753.759.3197.57.455)52.34/2111.91kNP(0.473.750.3757.5)/21.86/23.22kNC柱集中力:GC111.912223.82kNPC3.2226.44kND柱:由縱向主梁傳來:次梁上的力:qb4.47kN/m g4.971.875218.875kN/m p0.251.87520.9kN/m 傳遞到主梁:G14.47618.

24、875(2.25+1.875)/252.34kNP10.9(2.25+1.875)/21.86kN主梁上:qb+ qw9.223.390.4510.75 kN/m g14.971.8759.319kN/m p10.251.8750.47 kN/m g24.971. 57.455kN/m p20.251.50.375 kN/mG(7.510.753.759.3197.57.455)52.34/2111.91kNP(0.473.750.3757.5)/21.86/23.22kND柱集中力:GD111.912223.82kNPD3.2226.44kNE柱:由縱向主梁傳來:次梁上的力:qb4.47kN

25、/m g4.971.875218.875kN/m p0.251.87520.9kN/m 傳遞到主梁:G14.47618.875(2.25+1.875)/252.34kNP10.9(2.25+1.875)/21.86kN主梁上:qb+ qw9.223.390.4510.75 kN/m g4.971.8759.319kN/m p0.251.8750.47 kN/mG(7.510.753.759.31952.34)/283.96kNP0.453.75+1.86/21.77kNE柱集中力:GE83.962167.92 kN PE1.7723.54kN第七層至第一層:1、分布荷載:BC跨:qb9.22k

26、N/m qw2.978(3.75-0.6) = 5.364kN/m g4.321.875216.2kN/m p2.01.87527.5kN/m CD跨:qb9.22 kN/m DE跨:qb9.22kN/m qw2.978(3.75-0.6) = 5.364kN/m g4.321.875216.2kN/m p2.01.87527.5kN/m 2、集中荷載:B柱:由縱向主梁傳來:次梁上的力:qb4.47kN/m g4.321.875216.2kN/m p2.01.87527.5kN/m 傳遞到主梁:G14.47616.2(2.25+1.875)/246.8kNP17.5(2.25+1.875)/2

27、15.47kN主梁上:qb+ qw9.223.39(3.75-0.6) 0.817.76kN/m g4.321.8758.1kN/m p2.01.8753.75kN/mG(7.515.473.758.146.8)/296.6kNP3.753.75+15.47/214.77kNB柱集中力:GB96.62193.2 kN PB14.77229.54kNC柱: 由縱向主梁傳來:次梁上的力:qb4.47kN/m g4.321.875216.2kN/m p2.01.87527.5kN/m 傳遞到主梁:G14.47616.2(2.25+1.875)/246.8 kNP17.5(2.25+1.875)/21

28、5.47kN主梁上:qb+qw4.472.978(3.75-0.6)9.834 kN/m g14.321.8758.1kN/m p12.01.8753.75kN/m g24.321.56.48kN/m p22.01.53 kN/mG(7.59.8343.758.17.56.48)46.8/299.77kNP(3.753.7537.5+15.47)/226.02kNC柱集中力:GC99.772199.54kNPC26.02252.04kND柱: 由縱向主梁傳來:次梁上的力:qb4.47kN/m g4.321.875216.2kN/m p2.01.87527.5kN/m 傳遞到主梁:G14.476

29、16.2(2.25+1.875)/246.8kNP17.5(2.25+1.875)/215.47kN主梁上:qb+qw4.472.978(3.75-0.6)9.834 kN/m g14.321.8758.1kN/m p12.01.8753.75kN/m g24.321.56.48kN/m p22.01.53 kN/mG(7.59.8343.758.17.56.48)46.8/299.77kNP(3.753.7537.5+15.47)/226.02kND柱集中力:GD99.772199.54kNPD26.02252.04kNE柱:由縱向主梁傳來:次梁上的力:qb4.47kN/m g4.321.8

30、75216.2kN/m p2.01.87527.5kN/m 傳遞到主梁:G14.47616.2(2.25+1.875)/246.8kNP17.5(2.25+1.875)/215.47kN主梁上:qb+ qw9.223.39(3.75-0.6) 0.817.76kN/m g4.321.8758.1kN/m p2.01.8753.75kN/mG(7.515.473.758.146.8)/296.6kNP3.753.75+15.47/214.77kNE柱集中力:GE96.62193.2 kN PE14.77229.54kN圖2-17 軸框架豎向荷載豎向荷載作用下的框架內(nèi)力計(jì)算.1 框架梁的固端彎矩計(jì)

31、算恒載、活載作用下的固端彎矩,查建筑結(jié)構(gòu)靜力計(jì)算手冊,用疊加法求。1、BC梁:對于矩形分布荷載:MBMCql2/123q對于梯形分布荷載:MBMCql2/12(12a2/l2a3/l3)2.1q各層分布荷載:(梁和墻的自重為矩形分布、板自重和活載為梯形分布)第八層:l12.61 kN/m g18.64kN/m p0.9kN/m第七至一層:l14.58 kN/m g16.2 kN/m p7.5kN/m2、CD梁:l9.22kN/mMCMDql2/126.92 kNm故第八至一層:l:MCMD6.92 kNm g:MCMD0 p:MCMD03、DE梁:對于矩形分布荷載:MBMCql2/123q對于

32、梯形分布荷載:MBMCql2/12(12a2/l2a3/l3)2.1q各層分布荷載:(梁和墻的自重為矩形分布、板自重和活載為梯形分布)第八層:l12.61 kN/m g18.64kN/m p0.9kN/m第七至一層:l14.58 kN/m g16.2 kN/m p7.5kN/m表2-26 BC梁固端彎矩計(jì)算荷載MB (kNm)MC (kNm)八層七至一層八層七至一層l-37.83-43.74-37.83-43.74g-39.14-34.02-39.14-34.02恒載-76.97-77.76-76.97-77.76活載-1.89-15.75-1.89-15.75表2-27 DE梁固端彎矩計(jì)算荷

33、載MD (kNm)ME (kNm)八層七至一層八層七至一層l-37.83-43.74-37.83-43.74g-39.14-34.02-39.14-34.02恒載-76.97-77.76-76.97-77.76活載-1.89-15.75-1.89-15.75表2-28 梁端彎矩計(jì)算結(jié)果匯總荷載樓層梁固端彎矩 (kNm)MBCMCBMCDMDCMDEMED恒載第八層-76.97-6.92-76.97第七至一層-77.76-6.92-77.76活載第八層-1.890-1.89第七至一層-15.750-15.75.2 用清華大學(xué)土木系結(jié)構(gòu)力學(xué)求解器研制組研制的結(jié)構(gòu)力學(xué)求解器版本 1.5a計(jì)算豎向荷載

34、作用下框架內(nèi)力。將電算所得的梁端負(fù)彎矩乘以調(diào)幅系數(shù)0.8作為梁端彎矩標(biāo)準(zhǔn)值,跨中彎矩根據(jù)平衡條件適當(dāng)調(diào)整,所得結(jié)果列入下列表中:表2-29 梁端彎矩匯總:(彎矩對于梁下部受拉為正)荷載樓層BC跨CD跨DE跨Ml(kNm)Mr(kNm)Ml(kNm)Mr(kNm)Ml(kNm)Mr(kNm)恒載8-70.336-56.848-10.032-12.632-58.168-69.1847-75.344-57.808-5.928-8.24-58.912-74.2726-73.84-58.096-7.28-9.072-59.016-72.9685-73.04-59.112-7.24-8.664-59.84

35、8-72.3364-72.024-60.104-7.496-8.592-60.68-71.483-70.816-61.288-7.736-8.544-61.704-70.4162-69.472-62.848-7.688-8.216-63.128-69.2081-67.184-63.992-8.944-9.224-64.144-67.048活載8-1.936-1.8480.1520.152-1.848-1.9367-14.512-14.64-0.872-0.872-14.64-14.5126-14.688-14.736-0.624-0.624-14.736-14.6885-14.672-14.7

36、04-0.688-0.688-14.704-14.6724-14.672-14.712-0.672-0.672-14.712-14.6723-14.672-14.704-0.688-0.688-14.704-14.6722-14.68-14.744-0.624-0.624-14.744-14.681-14.536-14.624-0.88-0.88-14.624-14.536表2-30 柱端彎矩匯總:(單位:kNm)荷載恒載樓層87654321B柱M上-70.336-31.592-37.456-36.208-35.8-35.032-35.192-27.92M下43.75236.38436.832

37、36.22435.78434.2839.26414.68C柱M上46.81620.1227.00825.77626.65626.6829.24-21.976M下-31.768-23.808-26.096-25.96-26.864-25.92-33.07210.904D柱M上-45.536-19.592-26.464-25.344-26.304-26.408-29.03221.84M下31.08823.4825.8425.78426.7625.87233.08-10.976E柱M上69.18431.32-37.1636.00835.67234.9635.176-27.976M下-42.952-3

38、5.80836.328-35.808-35.456-34.024-39.07214.56荷載活載樓層87654321B柱M上-1.936-8.544-7.16-7.36-7.336-7.312-7.512-6.072M下5.9687.5287.3127.3367.367.1688.4643.168C柱M上28.2246.7367.087.0246.9367.392-5.456M下-5.544-7.376-6.936-7.024-7.08-6.728-8.2882.728D柱M上-2-8.224-6.736-7.08-7.024-6.936-7.3925.456M下5.5447.3766.936

39、7.0247.086.7288.288-2.728E柱M上1.9368.5447.167.367.3367.3127.5126.072M下-5.968-7.528-7.312-7.336-7.36-7.168-8.464-3.168表2-31 梁端剪力匯總:(單位:kN)樓層(恒載)BC跨CD跨DE跨V左V右V左V右V左V右863.224-58.72810.2-11.92859.144-62.816764.744-58.89610.296-11.83259.256-64.376664.44-59.19210.464-11.66459.496-64.144564.136-59.49610.592

40、-11.53659.736-63.896463.808-59.83210.696-11.43260.016-63.616363.408-60.23210.792-11.33660.368-63.272262.92-60.71210.888-11.2460.808-62.832162.352-61.28810.968-11.1661.336-62.304樓層(活載)BC跨CD跨DE跨V左V右V左V右V左V右81.496-1.472001.472-1.496712.352-12.3920012.392-12.352612.368-12.3840012.384-12.368512.368-12.38

41、40012.384-12.368412.368-12.3840012.384-12.368312.368-12.3840012.384-12.368212.368-12.3840012.384-12.368112.36-12.3920012.392-12.36表2-32 跨中最大彎矩匯總:(單位:剪力:kN 彎矩kNm)樓層(恒載)BC跨CD跨DE跨VMmaxMmaxVMmax82.24840.08-3.032-1.83239.672.9236.7761.216-2.5636.7662.62437.3920.12-2.32837.36852.3237.280.344-2.0837.26442.

42、14437.2960.256-1.837.2831.59237.3040.16-1.45637.29621.10437.20.344-1.01637.19210.52837.768-0.792-0.48837.76樓層(活載)BC跨CD跨DE跨VMmaxMmaxVMmax80.0160.9280.152-0.0160.9287-0.0248.912-0.8720.0248.9126-0.0088.776-0.6240.0088.7765-0.0088.8-0.6880.0088.84-0.0088.8-0.6720.0088.83-0.0088.8-0.6880.0088.82-0.0088.

43、784-0.6240.0088.7841-0.0168.904-0.880.0168.904表2-33 恒載作用下柱軸力計(jì)算:(單位:kN)樓層87654321B柱柱上集中力167.9193.2193.2193.2193.2193.2193.2193.2BC梁剪力63.2264.7464.4464.1463.8163.4162.9262.35柱自重61.2061.2061.2061.2061.2061.2061.2068.85軸力-250.47-554.14-867.43-1160.35-1462.84-1764.84-2066.23-2366.91C柱柱上集中力223.8199.5199.5

44、199.5199.5199.5199.5199.5CB梁剪力-58.73-58.90-59.19-59.50-59.83-60.23-60.71-61.29CD梁剪力10.2010.3010.4610.5910.710.7910.8910.97柱自重61.2061.2061.2061.2061.2061.2061.2068.85軸力-337.66-675.64-1014.22-1353.33-1692.99-2033.27-2374.27-2716.09D柱柱上集中力223.8199.5199.5199.5199.5199.5199.5199.5DC梁剪力-11.93-11.83-11.66-

45、11.54-11.43-11.34-11.24-11.16DE梁剪力59.1459.2659.5059.7460.0260.3760.8161.34柱自重61.2061.2061.2061.2061.2061.2061.2068.85軸力-319.08-659.45-999.89-1340.49-1681.29-2022.42-2363.97-2706.09E柱柱上集中力167.9193.2193.2193.2193.2193.2193.2193.2ED梁剪力-62.82-64.38-64.14-63.90-63.62-63.27-62.83-62.30柱自重61.2061.2061.2061

46、.2061.2061.2061.2068.85軸力-249.96-553.17-856.09-1158.70-1460.97-1762.79-2064.07-2364.69表2-34 活載作用下柱軸力計(jì)算:(單位:kN)樓層87654321B柱柱上集中力3.5429.5429.5429.5429.5429.5429.5429.54BC梁剪力1.5012.3512.3712.3712.3712.3712.3712.36軸力-6.53-62.78-98.98-145.10-191.08-236.90-282.50-327.83C柱柱上集中力6.4452.052.052.052.052.052.05

47、2.0CB梁剪力-1.47-12.39-12.38-12.38-12.38-12.38-12.38-12.39CD梁剪力00000000軸力-7.16-73.39-139.67-206.03-272.52-339.18-406.06-473.20D柱柱上集中力6.4452.052.052.052.052.052.052.0DC梁剪力00000000DE梁剪力1.4712.3912.3812.3812.3812.3812.3812.39軸力-7.16-73.39-139.67-206.03-272.52-339.18-406.06-473.20E柱柱上集中力3.5429.5429.5429.54

48、29.5429.5429.5429.54ED梁剪力-1.50-12.35-12.37-12.37-12.37-12.37-12.37-12.36軸力-6.53-62.78-98.98-145.10-191.08-236.90-282.50-327.83豎向荷載作用下的內(nèi)力圖如下:(彎矩經(jīng)過調(diào)幅)圖2-18 框架豎向彎矩圖 恒載 單位:kNm圖2-19 框架豎向荷載剪力圖 恒載 單位:kN圖2-20 框架豎向荷載軸力圖 恒載 單位:kN圖2-21 豎向荷載彎矩圖 活載 單位:kNm圖2-22 豎向荷載剪力圖 活載 單位:kN圖2-23 豎向荷載軸力圖 活載 單位:kN2.5框架梁、柱內(nèi)力組合內(nèi)力

49、組合的要求.1 控制截面梁:左右支座處和跨中最大彎矩處截面。柱:柱上、下端截面。.2 截面承載力設(shè)計(jì)要求根據(jù)高層建筑混凝土結(jié)構(gòu)技術(shù)規(guī)程JGJ 3-2002 第條規(guī)定:高層混凝土高層建筑結(jié)構(gòu)構(gòu)件承載力應(yīng)按下列公式計(jì)算:非抗震設(shè)計(jì):0SR抗震設(shè)計(jì):SR/RE0結(jié)構(gòu)重要性系數(shù),按荷載規(guī)范取01.0S荷載效應(yīng)組合設(shè)計(jì)值R結(jié)構(gòu)構(gòu)件承載力設(shè)計(jì)值RE承載力抗震調(diào)整系數(shù) 對于梁:受彎時(shí)RE0.75,受剪時(shí)RE0.85對于柱:取RE0.8梁的內(nèi)力組合.1 計(jì)算要點(diǎn)1、梁端和跨中彎矩組合:組合一:1.0(1.2MGK1.4MQK) 組合二:0.75(1.2MGK1.20.5MQK1.3MEK) 組合三:0.75(

50、1.2MGK1.20.5MQK1.3MEK) 表2-35 地震作用下梁的跨中彎矩:(單位:V:kN;M:kNm;x:m)樓層87654321BC梁V9277807771594538x33333333M左332276288276256212160167M-56-42-48-42-43-35-25-53CD梁V393329343329304253191131x1.51.51.51.51.51.51.51.5M左590493514493456380286196M-0.50.50.50.50-0.50.50.5DE梁V9277807771594438x33333333 M左21818319018316

51、814010660M5848504845282654表2-36 梁端彎矩組合:(單位:kNm)樓層彎矩截面BBCC左C右CDD左D右DEE8MGK-70.3440.08-56.85-10.03-3.03-12.63-58.1739.6-69.18MQK-1.940.93-1.850.150.150.15-1.850.93-1.94MEK332-56221590-0.559021858334組合一-87.149.4-70.8-11.8-3.4-15.0-72.448.8-85.7組合二259.5-18.11163.5566.3-3.2564.4159.492.6262.5組合三-387.991.

52、1-267.5-584.2-2.2-586.6-265.7-20.5-388.87MGK-75.3436.78-57.81-5.931.22-8.24-58.9136.76-74.27MQK-14.518.91-14.64-0.87-0.87-0.87-14.648.91-14.51MEK276-421854930.549318348276組合一-110.756.6-89.9-8.30.2-11.1-91.256.6-109.4組合二194.8-3.8121.8474.91.2472.9118.883.9195.7組合三-343.478.1-239.0-486.40.2-488.5-238.0

53、-9.7-342.56MGK-73.8437.39-58.10-7.280.12-9.07-59.0237.37-72.97MQK-14.698.78-14.74-0.62-0.62-0.62-14.748.78-14.69MEK288-481925140.551419050288組合一-109.257.2-90.4-9.6-0.7-11.8-91.557.1-108.1組合二207.7-9.2128.3494.30.3492.7125.586.3208.5組合三-353.984.4-246.1-508.0-0.7-509.6-245.0-11.2-353.15MGK-73.0437.28-5

54、9.11-7.240.34-8.66-59.8537.26-72.34MQK-14.678.8-14.70-0.69-0.69-0.69-14.78.8-14.67MEK276-421854930.549318348276組合一-108.257.1-91.5-9.7-0.6-11.4-92.457.0-107.3組合二196.8-3.4120.6473.80.5472.6117.984.3197.4組合三-341.478.5-240.2-487.5-0.5-488.8-238.9-9.3-340.84MGK-72.0237.30-60.10-7.500.26-8.59-60.6837.28-7

55、1.48MQK-14.678.8-14.71-0.67-0.67-0.67-14.718.8-14.67MEK256-43170456045616845256組合一-106.96257.08-92.714-9.938-0.626-11.246-93.4157.056-106.314組合二178.1805-4.395105.0405437.5485-0.0675436.5675102.568581.387178.6665組合三-321.0279.455-226.46-451.652-0.0675-452.633-225.032-6.363-320.5343MGK-70.8237.30-61.29

56、-7.740.16-8.54-61.7037.30-70.42MQK-14.648.8-14.70-0.69-0.69-0.69-14.78.8-14.67MEK212-35142380-0.538014028212組合一-105.557.1-94.1-10.3-0.8-11.2-94.657.1-105.0組合二136.43.476.7363.2-0.7362.574.464.8136.7組合三-277.071.6-200.2-377.80.3-378.5-198.610.2-276.72MGK-69.4737.20-62.85-7.690.34-8.22-63.1337.19-69.21M

57、QK-14.688.78-14.74-0.62-0.62-0.62-14.748.78-14.68MEK160-251072860.528610626160組合一-103.956.9-96.1-10.1-0.5-10.7-96.456.9-103.6組合二86.813.141.1271.60.5271.239.962.887.1組合三-225.161.8-167.5-286.1-0.5-286.5-166.812.1-224.91MGK-67.1837.77-63.99-8.94-0.79-9.22-64.1437.76-67.05MQK-14.548.90-14.62-0.88-0.88-0

58、.88-14.628.9-14.54MEK167-53611960.51966054167組合一-101.057.8-97.3-12.0-2.2-12.3-97.457.8-100.8組合二95.8-13.7-4.7182.7-0.6182.4-5.890.695.9組合三-229.889.7-123.6-199.5-1.6-199.8-122.8-14.7-229.72、梁端剪力組合:組合一:1.0(1.2VGK1.4VQK) 組合二:0.85(1.2VGK1.20.5VQK1.3VEK) 組合三:0.85(1.2VGK1.20.5VQK1.3VEK) 表2-37 梁端剪力組合:(單位:kN

59、)樓層截面VGKVQKVEK組合一組合二組合三8B63.2241.4969278.0166.9-36.4C左-58.728-1.47292-72.541.0-162.3C右10.2039312.2444.7-423.9D左-11.9280393-14.3422.1-446.4D右59.1441.4729273.0162.7-40.9E-62.816-1.49692-77.536.8-166.57B64.74412.3527795.0157.4-12.7C左-58.896-12.39277-88.018.7-151.5C右10.296032912.4374.0-353.0D左-11.832032

60、9-14.2351.5-375.6D右59.25612.3927788.5151.8-18.3E-64.376-12.35277-94.513.1-157.06B64.4412.3688094.6160.4-16.4C左-59.192-12.38480-88.421.7-155.1C右10.464034312.6389.7-368.3D左-11.6640343-14.0367.1-390.9D右59.49612.3848088.7155.4-21.4E-64.144-12.36880-94.316.7-160.15B64.13612.3687794.3156.8-13.4C左-59.496-1

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