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1、多層綜合樓結(jié)構(gòu)計算一 .設(shè)計資料(1) .設(shè)計標(biāo)高:室內(nèi)設(shè)計標(biāo)高0.000,室內(nèi)外高差450。(2) .墻身做法:外墻墻身240,為普通機(jī)制磚填充墻。墻面用M5混合砂漿砌筑,1:3水泥砂漿底,貼瓷磚墻面,25。內(nèi)隔墻墻身200,墻面為水刷石墻面(包括混合砂漿打底),25。正立面2-7層為玻璃幕墻,100厚。一層為落地玻璃窗。(3) .樓面做法:水磨石地面,10面層,20水泥砂漿打底。110鋼筋混凝土板,15厚天棚水泥砂漿抹灰,吊頂棚。(4) .屋面做法: 80泡沫混凝土保溫層(2%自兩側(cè)向中間找坡),20厚1:3水泥砂漿找平層,二氈三油防水層上撒綠豆砂保護(hù),熱瀝青一度隔氣層。110厚鋼筋混凝土

2、板,15厚天棚水泥砂漿抹灰,吊頂棚。(5) .門窗做法:門廳,酒吧,商場門為鋁合金門,其余為木門。窗為鋼組合窗。(6) .地質(zhì)資料:(屬II類場地,余略)(7) .地震烈度:7度。(8) .活荷載:走廊2.0KN/,樓梯間2.0KN/,廁所2.0KN/,辦公室2.0KN/,門廳2.0KN/,商場3.5KN/,庫房6.0KN/. (9) .恒荷載:玻璃幕墻1.0-1.5KN/,填充墻19KN/m3,鋼筋混凝土25KN/m3,水刷石墻面0.5KN/,貼瓷磚墻面0.5KN/,水泥砂漿20KN/m3,木門0.2KN/,鋼組合窗0.4-0.45KN/,鋁合金門0.4KN/.電梯機(jī)房7KN/.水磨石地面0

3、.65KN/.一 結(jié)構(gòu)布置.該建筑為多層綜合寫字樓,一層為商場,酒吧間,2-7層為出租寫字間,建筑平面布置靈活,有較大空間,可考慮采用框架結(jié)構(gòu)。樓層為7層,主體高度為23.60米。該工程采用全現(xiàn)澆結(jié)構(gòu)體系. 結(jié)構(gòu)平面布置圖見下: 因現(xiàn)澆框架鋼筋混凝土結(jié)構(gòu)受溫度變化影響,溫度縫最大間距55m,在8-D軸設(shè)伸縮縫。所以取軸號1-8,A-D框架簡化計算。在1-8軸線橫向方向布置主梁,A-D縱向方向布置連系梁。在1-8軸線間布置次梁。三 .構(gòu)件初估。1柱截面初估由于框架辦公樓荷載較小,按13kN/計算;負(fù)荷面積按F= 7.2×(2.7+6.6)/2 = 33.48考慮,取1。設(shè)防烈度為7度,

4、小于60m高的框架結(jié)構(gòu)抗震等級為三級,因此取0.8A = a2 = × = = 0.29 a = 0.54 m 初步估計柱的尺寸的為600×600。為計算簡便,邊柱中柱尺寸取相同。2梁尺寸確定。 該工程定為縱橫向承重,主要為橫向承重,根據(jù)梁尺寸初步確定:主梁高h(yuǎn) : (1/81/12)L = 550-825 取 h = 600 寬b : (1/31/2)h = 200-300 取 b=250連系梁高h(yuǎn) : (1/10-1/15)L = 480-720 取h =500 寬b : (1/3-1/2)h = 167-250 取 b =250次梁高h(yuǎn) : (1/12-1/18)L

5、= 367-550 取 h = 500 寬b : (1/3-1/2)h = 167250 取 b =200 3初選樓板。樓板為現(xiàn)澆雙向連續(xù)板,t (1/50)L =72 . 取 t = 110. 四結(jié)構(gòu)計算簡圖及梁柱剛度計算(取一榀橫向框架計算)。 假定框架柱嵌固于基礎(chǔ)頂面上,框架梁與柱剛接。由于各層柱的截面尺寸不變,故梁跨等于柱截面形心軸線之間的距離。底層柱高從基礎(chǔ)頂面算至二樓樓面,基礎(chǔ)標(biāo)高根據(jù)地質(zhì)條件,室內(nèi)外高差等定為-1.00m,二樓樓面標(biāo)高+4.80m,故底層柱高為5.80m.其余各層柱高從樓面算至上一層樓面(即層高)。故均為3.00m.多層框架考慮為縱橫向承重,主要為橫向承重,為超靜

6、定結(jié)構(gòu),故在內(nèi)力計算前,應(yīng)預(yù)先估算梁,柱的截面尺寸及結(jié)構(gòu)所采用的材料強(qiáng)度等級,以求得框架中各桿的線剛度?;炷翉?qiáng)度等級: 梁用C20 (Ec = 25.5 × 106 kN/) 柱用C30 (Ec = 29.5 × 106 kN/) 結(jié)構(gòu)計算簡圖如下: 1. 梁的線剛度計算:主梁:I0 =4.5×10m全現(xiàn)澆框架梁: a. 中框架梁 Ib= 2.0I0= 9.0×10m b. 邊框架梁 Ib= 1.5I0=6.75×10m邊框架梁(b=0.25m.h=0.6m):跨度為6.6m時,kb = = = 2.6×10kN·m跨度為

7、2.7m時,kb =6.4×10kN·m中框架梁(b=0.25m,h=0.6m):跨度為6.6米時, kb = =3.5×10kN·m跨度為2.7米時, kb = = 8.5×10kN·m2柱的線剛度計算(b=0.6m,h=0.6m) 第一層:柱高5.8m ,Ic=1.08×10m kc=5.5×10 第二七層:柱高3.0m,Ic=1.08×10mkc=10.62×103.柱的側(cè)移剛度計算 見下圖表。 對于高度小于50m,且高寬比h/b=23.6/60.6=0.39<4的建筑物,僅考慮梁柱

8、彎曲變形引起的柱側(cè)移剛度,忽略柱的軸向變形。 層號位置K=K= D=(kN/m)柱的根數(shù)1層邊框架的邊柱0473039377203中框架的邊柱0640432848011邊框架的中柱16360588115402中框架的中柱121806411258011中框架的中柱2202062712299127層邊框架的邊柱02450109154503中框架的邊柱033001412002911邊框架的中柱08470298421972中框架的中柱1113003615111811中框架的中柱210450343485701對底層:邊柱=7720×3+8480×11=23160+93280=1164

9、40 中柱=11540×2+12580×11+12299=173759 = 對27層:邊柱=15450×3+20029×11=46350+220319=266669中柱=42197×2+51118×11+48570=695262 =266669+695262=9619314柱反彎點高度計算。 第一層:邊柱:n=7,=0.64, ,=1,,j=1,=0.65中柱:n=7,,,=1,,j=1 ,=0.55第二層:邊柱:n=7,,,=1,,j=2, 中柱:n=7,,,,j=2 , 第三層:邊柱:n=7,,,=1,,j=3, 中柱:n=7,,

10、,,j=3 , 第四層:邊柱:n=7,,,=1,,j=4, 中柱:n=7,,,,j=4 , 第五層:邊柱:n=7,,,=1,,j=5, 中柱:n=7,,,,j=5 , 第六層:邊柱:n=7,,,=1,,j=6, 中柱:n=7,,,,j=6 , 第七層:邊柱:n=7,,,=1,,j=7, 中柱:n=7,,,,j=7 , 五. 重力荷載標(biāo)準(zhǔn)值計算和水平地震作用計算1.等效重力荷載代表值(標(biāo)準(zhǔn)值)的計算。恒載-取100%雪載-取50%樓面(屋面)-取等效均布活載50%-80%一般民用建筑取50%一般樓層取G=1.0恒+0.5活+1.0(柱、梁、墻)分層總計,上下各半。標(biāo)準(zhǔn)層:樓面荷載-樓面做法水磨石

11、地面(10mm面層,20mm水泥砂漿打底)-0.65kN/110厚鋼筋混凝土板 - 0.11×25=2.75kN/15厚天棚水泥砂漿抹灰 - 15×10×20=0.3kN/吊頂棚 - 0.5kN/樓面恒載:4.2kN/樓梯間重量:1.3×樓面恒載×面積= 1.3 ×4.2×=5.46×(7.26+27.9)=191.97kN樓面恒載42×(7.2×15.9×57.2×6.62.7×2.47.2×4.42.2×3.9)=4.2×(572.

12、447.526.4831.688.58)=2799.972kN樓面活載:走廊:7.2×5×2.7×22.7×2.4×24.4×7.2×2=270.72kN廁所:7.2×6.6×2=95.04kN樓梯間:×2=70.32kN辦公室:(7.2×6.6)×2×10=950.4kN折算系數(shù):(270.7295.0470.32950.4)×0.9 = 1247.83kN梁重(25kN/m)主梁:600×250 21 根 25×0.6×0

13、.25×1.1×(2.7×7+6.6×14)=459.67kN連梁:500×250 24 根 25×0.5×0.25×1.1×7.2×24 = 594kN次梁:500×200 12根0.5×0.2×6.6×25×1.1 ×12 = 217.8kN柱:600×600 28根3×0.6×0.6×25×1.15×28 = 869.4kN窗: 樓梯間窗:1.5×1.2

14、5;2×0.45= 1.62kN廁所窗: 1.5×1.2×2×0.45= 1.62kN辦公室窗:(3×1.5)×1.5×0.45×4=12.15kN門:(1×2.1+4×1×2.1+1.2×2.1×15+2×1.1×2.1)×0.2 = 10.58kN墻體:2-B,8-B軸線外墻墻身:2×6.6×0.24×3×19= 180.58kN 墻面:2×2×0.5×6.6&#

15、215;3 = 39.6kN樓梯間外墻墻身:(6.6+2.7)×3×0.24×19=127.22kN 墻面:(6.6+2.7)×3×0.5=27.9kN1-2軸外墻墻身:×2=65.66kN 墻面:7.2×0.5×4=14.41kN廁所外墻墻身:(7.2×3×0.24-2×1.2×1.5×0.24)×19=82.08kN 墻面:(21.6-3.6)×0.5×2=18kN1-7軸外墻墻身:(7.2×3×0.24-3&#

16、215;1.5×0.24)×19×4=270.86kN墻面:(7.2×3×0.24-3×1.5×0.24)×0.5×2×4=59.4kN1-B軸內(nèi)隔墻墻身:×0.2×19=98.04kN 墻面:×0.5×2=25.8kN2-3隔墻墻身:3×0.2×6.6×19=75.24kN 墻面:6.6×3×0.5×2=19.8kN6-3隔墻墻身:3×0.2×6.6×19=75.2

17、4kN墻面:6.6×3×0.5×2=19.8kNB-C廁所隔墻墻身:(7.2×3-2×1×2.1)×0.2×19=66.12kN 墻面:(7.2×3-2×1×2.1)×0.5×2=17.4kNB-3軸隔墻墻身:7.2×3×0.2×19=82.08kN 墻面:7.2×3×0.5×2=21.6kN3-4隔墻墻身:7.2×3×0.2×19=82.08kN墻面:7.2×3&#

18、215;0.5×2=21.6kNB-3-4隔墻墻身:(7.2×31.2×2.1×2)×0.2×19=62.93kN 墻面:(7.2×31.2×2.1×2)×0.5×2=16.56kN3-7軸共7個同B-3-4相同隔墻,則有:墻身:62.93×7=440.50kN墻面:16.56×7=115.92kN4軸隔墻墻身:6.6×3×0.2×19=75.24kN墻面:6.6×3×0.5×2=19.8kN橫向隔墻同4軸

19、的共7個,則有:墻身:75.24×7=526.68kN墻面:19.8×7=138.6kN7-8軸隔墻墻身:(7.2×3-2×1×2.1)×0.2×19=66.12kN 墻面:(7.2×3-2×1)×0.5×2=19.6kN8軸隔墻墻身:×0.2×19=88.46kN墻面:×0.5×2=23.28kNB軸隔墻墻身:(7.2×3-1.2×2.1)×0.2×19=72.50kN墻面:(7.2×3-1.2

20、×2.1)×0.5×2=19.08kN電梯墻墻身:(4.8×3-2.1×1.1×2+2.7×3)×0.2×19=67.94kN墻面:(4.8×3-2.1×1.1×2+2.7×3)×0.5×2=17.88kN因重力荷載代表值取上下兩層各半的荷載重量,因2-7層層高相同,中間門窗布置相同,可看做算一個標(biāo)準(zhǔn)層的荷載值。計算則有: G= G= G= G= G= 8999.18kN底層:樓面荷載-樓面做法水磨石地面(10mm面層,20mm水泥砂漿打底) 0

21、.65kN/110厚鋼筋混凝土板 0.11×25=2.75kN/15厚天棚水泥砂漿抹灰 15×10×20=0.3kN/吊頂棚 0.5kN/樓面恒載:4.2kN/樓梯間重量:1 3×樓面恒載×面積= 1.3 ×4.2×=5.46×(7.26+27.9)=191.97kN樓面恒載:42×(7.2×15.9×57.2×6.62.7×2.47.2×4.42.2×3.9)=4.2×(572.447.526.4831.688.58)=2799.97

22、2kN樓面活載: 廁所:7.2×6.6×2=95.04kN 門廳:7.2×6.6×2=95.04kN樓梯間:×2=70.32kN走廊:7.2×2.7×2+2.4×2.7×2+7.2×4.4×2=115.2kN庫房:6×4.6×7.2×4=794.88kN商場: =1222.2kN辦公室:3.6×6.6×2=47.52共2440.2kN 折算:2440.2×0.9=2196.18kN梁重(25kN/m)主梁:600×2

23、50 21 根 25×0.6×0.25×1.1×(2.7×7+6.6×14)=459.67kN連梁:500×250 24 根 25×0.5×0.25×1.1×7.2×24 = 594kN次梁:500×200 12根1. 5×0.2×6.6×25×1.1 ×12 = 217.8kN柱: 600×600 28根(2.9+1.5)×0.6×0.6×25×1.15×

24、28=1275.12kN窗:樓梯間窗:1.5×1.2×2×0.45= 1.62kN廁所窗: 1.5×1.2×2×0.45= 1.62kN辦公室窗:(3×1.5)×1.5×0.45×4=12.15kN門:(1×1.5+4×1×1.5+1.2×1.5×152×1.1×1.5)×0.2=7.56kN墻體(2層1.5米)外墻:1×1.5×7.2×6=64.8kN2-B軸外墻墻身:0.24

25、5;6.6×1.5×19=45.14kN墻面:2×0.5×6.6×1.5×2=19.8kN8-B軸外墻:0.24×6.6×1.5×19=45.14kN墻面:2×0.5×6.6×1.5×2=19.8kN1軸外墻墻身:(6.6+2.7)×1.5×0.24×19=63.61kN墻面:(6.6+2.7)×1.5×0.5×2=13.95kN1-2軸外墻墻身:×2=24.62kN墻面:(3×1.5-

26、1.5×1.2)×0.5×2=2.7kN廁所外墻墻身:(7.2×1.5×0.24-2×1.2×1.5×0.24)×19=32.83kN 墻面:7.2×0.5×2=7.2kN3-7軸墻體:(7.2×1.5×0.24-4.5×1.5×0.24)×19×4=73.87kN墻面:(7.2×1.5-4.5×1.5)×0.5×2=4.05kN內(nèi)隔墻:2-B軸隔墻墻身:×0.2×1

27、9=47.31kN 墻面:×0.5×2=12.45kN1-3軸隔墻墻身:1.5×0.2×6.6×19=37.62kN墻面:6.6×1.5×0.5×2=9.9kN3軸隔墻墻身:1.5×0.2×6.6×19=37.62kN墻面:6.6×1.5×0.5×2=9.9Kn廁所隔墻墻身:(7.2×1.5-2×1×1.5)×0.2×19=29.64kN 墻面:(7.2×1.5-2×1×1.5

28、)×0.5×2=7.8kNB-3軸隔墻墻身:7.2×1.5×0.2×19=41.04kN 墻面:7.2×1.5×0.5×2=10.8kN3-4軸隔墻墻身:7.2×1.5×0.2×19=41.04kN 墻面:7.2×1.5×0.5×2=10.8kB-3-4隔墻墻身:(7.2×1.5-1.2×1.5×2)×0.2×19=27.36kN 墻面:(7.2×1.5-1.2×1.5×2)&

29、#215;0.5×2=7.2kN共7個同B-3-4相同隔墻,則有(27.36+7.2)×7=241.92kN4軸隔墻墻身:6.6×1.5×0.2×19=37.62kN 墻面:6.6×1.5×0.5×2=9.9kN共7個同4軸相同隔墻,則有:(37.62+9.9)×7=332.64kN7-8隔墻墻身:(7.2×1.5-2×1.5×1)×0.2×19=29.64kN墻面:(7.2×1.5-2×1.5×1)×0.5

30、5;2=7.8 8軸隔墻墻身:×0.2×19=40.47kN 墻面:×0.5×2=10.65kN B軸隔墻墻身:×0.2×19=34.2kN 墻面:(7.2×1.5-1.2×1.5)×0.5×2=9kN 電梯隔墻墻身:(4.8×1.5-1.5×1.1×2+2.7×1.5)×0.2×19=30.21kN 墻面:(4.8×1.5-1.5×1.1×2+2.7×1.5)×0.5×2=7

31、.95kN底層2.9米:柱:2.9×0.6×0.6×25×1.15×28=840.42kN門:(0.45×0.2×2×1.2+0.2×1×0.2)+4×1×0.2×0.2+0.2×2×1×0.2+1.2×0.2×0.2×4+0.45×1.2×0.2×4+0.2×1.8×3×0.45+0.2×1×0.2=1.646kN墻體(底層2

32、.9米) 外墻:1×2.9×7.2×5=104.4kN門廳墻:(2.9×7.2-1.8×3×0.2)×1=19.8kN2-B,8-B軸外墻墻身:0.24×6.6×2.9×19×2=174.56kN墻面:2×0.5×6.6×2.9=38.28kN樓梯間外墻:1軸外墻墻身: (6.6+2.7)×2.9×0.24×19=122.98kN墻面:(6.6+2.7)×2.9×0.5×2=26.97kN1-2軸

33、外墻墻身:×0.24 ×19=124.76kN墻面:×0.5 ×2=27.36kN廁所外墻墻身:7.2×2.9×0.24×19=95.21kN 墻面:7.2×2.9×0.5×2=20.88k3-7軸外墻墻身:7.2×2.9×0.24×19×4=380.85kN 墻面:7.2×2.9×0.5×2=20.88kN 內(nèi)隔墻:1-B軸隔墻墻身:×0.2×19=101.73kN 墻面:×0.5×2

34、=26.77kN 2-3軸隔墻墻身:2.9×6.6×0.2×19=72.73kN 墻面:2.9×6.6×0.5×2=19.14kNB-C兩隔墻:廁所隔墻墻身:(7.2×2.9-2×0.2×1)×0.2×19 =77.82kN墻面:(7.2×2.9-2×0.2×1)×0.5×2 =20.48KnB-3軸隔墻墻身:7.2×2.9×0.2×19=79.34kN 墻面:7.2×2.9×0.5&#

35、215;2=20.88kN3軸隔墻墻身:×0.2×19=100.66kN墻面:×0.5×2=26.49kN1-7軸隔墻墻身:(2.9×7.2×4-4×1.2×0.2)×0.2×19=313.73kN 墻面:(2.9×7.2×4-4×1.2×0.2)×0.5×2=82.56kN5軸隔墻墻身:4.6×2.9×0.2×19=50.69kN 墻面:4.6×2.9×0.5×2=13.34

36、kN收發(fā)室左側(cè)隔墻墻身:3.6×2.9×0.2×19+6.6×2.9×0.2×19 =112.40kN墻面:3.6×2.9+6.6×2.9=29.58kN7軸隔墻墻身:×0.2×19=172.63kN墻面:×0.5×2=45.43kN7-8軸隔墻墻身:(7.2×2.9-2×0.2×1)×0.2×19=77.82kN 墻面:(7.2×2.9-2×0.2×1)×0.5×2=20.4

37、8kN電梯隔墻墻身(2.9×4.8-0.2×1.1×2+2.7×2.9+4.8×2.9)×0.2×19=133.87kN墻面:(2.9×4.8-0.2×1.1×2+2.7×2.9+4.8×2.9)×0.5×2=35.23kN8軸隔墻墻身:×0.2×19=100.66kN 墻面:×0.5×2=26.49kN底層挑檐:(6×7.2+0.1)×0.1×1×25=108.25kN經(jīng)計算

38、得:G= 11157.24kN屋頂屋面做法(面層、防水層、隔熱層、保溫層、找平層): 1.5kN/110厚鋼筋混凝土板 : 2.75kN/15厚天棚水泥砂漿抹灰 : 0.30kN/吊頂棚 : 0.50kN/屋面恒載: 5.05kN/女兒墻(不上人屋面0.8米)(79.2+3+6.6+2.7+3+6.6+6.6)×0.8×19×0.24=392.89kN屋面活載:不上人 0.7kN/電梯機(jī)房:4.8×6.6×7=299.04kN樓梯間:13×樓面恒載×面積= 1.3 ×4.2×=5.46×(7.2

39、6+27.9)=191.97kN門:1×1×2.1×0.2+2×2.1×1×0.2+2×0.2×2.1×1=0.42+0.84+0.84=2.1kN窗:1.5×1.2×2×0.45+1.5×1.2×2×0.45=1.62+1.62=3.24頂層柱:0.6×0.6×25×1.15×3×7=217.35kN頂層主梁:0.6×0.25×25×(6.6+2.7)×1

40、.1=43.12kN頂層次梁:0.5×0.2×25×2.2×1.1=5.5kN7層樓主梁:600×250 21 根 25×0.6×0.25×1.1×(2.7×7+6.6×14)=459.67kN連梁:500×250 24 根 25×0.5×0.25×1.1×7.2×24 = 594kN次梁:500×200 12根0. 5×0.2×6.6×25×1.1 ×12 = 21

41、7.8kN柱:600×600 28根0.6×0.6×25×1.15×28×1.5=434.7kN7層上一半墻:樓梯間外墻:1-2軸外墻墻身:(3×1.5×0.24)×19×2=41.04kN墻面:0.5×3×1.5×4=9kN廁所外墻墻身:7.2×1.5×0.24×19=49.25kN 墻面:7.2×1.5×0.5×2=10.8kN3-7外墻墻身:7.2×1.5×0.24×19

42、×4=196.99kN 墻面:7.2×1.5×4×0.5×2=43.2kN1 軸隔墻墻身:×0.2×19=50.73kN 墻面:×0.5×2=13.35kN2-3軸隔墻墻身:1.5×0.2×6.6×19=37.62kN 墻面:1.5×6.6×0.5×2=9.9kN3軸隔墻墻身:1.5×0.2×6.6×19=37.62kN 墻面:1.5×6.6×0.5×2=9.9kNB-C廁所隔墻墻身:(

43、 7.2×1.5-2×1×0.6)×0.2×19=36.48kN墻面:( 7.2×1.5-2×1×0.6)×0.5×2=9.6kNB-3軸隔墻墻身:7.2×1.5×0.2×19=41.04kN 墻面:7.2×1.5×0.5×2=10.8kN3-4軸隔墻墻身:7.2×1.5×0.2×19=41.04kN 墻面:7.2×1.5×0.5×2=10.8kNB-3-4

44、隔墻墻身:(7.2×1.5-1.2×0.6×2)×0.2×19=35.57kN 墻面: (7.2×1.5-1.2×0.6×2)×0.5×2=9.36kN同B-3-4隔墻共7個,墻身:35.57×7=248.98kN墻面:9.36×7=65.52kN4軸隔墻墻身:6.6×1.5×0.2×19=37.62kN 墻面:6.6×1.5×0.5×2=9.9kN同4軸隔墻共7個,墻身:37.62×7=263.34kN

45、墻面:9.9×7=69.3kN7-8軸隔墻墻身:(7.2×1.5-2×0.6×1)×0.2×19=36.48kN 墻面:(7.2×1.5-2×0.6×1)×0.5×2=9.6kN8軸隔墻墻身:×0.2×19=47.99kN墻面:×0.2×19=12.63kNB軸隔墻墻身:(7.2×1.5-1.2×0.6)×0.2×19=38.30kN 墻面:(7.2×1.5-1.2×0.6)×

46、0.5×2=10.08kN電梯隔墻墻身:(4.8×1.5-0.6×1.1×2+2.7×1.5)×0.2×19=37.73kN墻面:(4.8×1.5-0.6×1.1×2+2.7×1.5)×0.5×2=9.93kN經(jīng)計算得:G= 7981.56kN,突出建筑G=1170.21kN整理:G= 11157.24kN,G= G= G= G= G= 8999.18kN,G= 7981.56kN2. 水平地震力作用計算。(1) 自振周期計算層間剪力計算。 橫向框架頂點位移計算,見

47、下表: 層次G(kN)(kN)D 77981.567981.569619310.00830.41168999.1816980.749619310.01770.40358999.1825979.929619310.02700.38548999.1834979.109619310.03630.35838999.1843978.289619310.04570.32228999.1852977.469619310.05500.276111157.2464134.712901990.2210.221由公式:T=1.7×(采用實砌填充磚墻,則=0.6) =1.7×0.6×=0

48、.654s 橫向地震作用的計算,7度設(shè)防,場地為II類,地震動參數(shù)區(qū)劃為一區(qū)T= 0.35s,= 0.08s由于T= 0.654s>1.4 T=0.49s.故應(yīng)考慮頂點附加作用。 = 0.08 T+0.01=0.062因TT5 T,取=0.9結(jié)構(gòu)底部剪力法: F= =×0.85× = =×0.08=0.0456 F=×0.08×0.85×64134.71=2329.786kN頂點附加地震力作用為:= F=0.06232×2329.786=154.84kN F =FEK (1-n) 各層橫向地震作用及樓層的地震剪力見下表

49、: 層次hH(m)G(kN)GHFEK (1-n)V(kN)83.026.81170.2131361.850.03479.2179.21*3=237.6373.023.86811.34162109.980.175407.70486.9163.020.88999.18187182.960.203472.93959.8453.017.88999.18160185.410.173403.041362.8843.014.88999.18133187.870.144335.481698.3633.011.88999.18106190.330.115267.911966.2723.08.88999.187

50、9192.790.086199.652165.9215.85.811157.2464712.020.07163.082329.00 變形驗算見下表:層高層間剪力層間剛度層高層間相對轉(zhuǎn)角748691961931000051369598496193100010351362889619310001423416983696193100017733196627961931000204322165929619310002253123290029019900080358 均滿足 =要求。(2) 橫向框架柱端彎矩計算。第一層:邊柱:=5.8m, =2329.00, =290199, =8480, ,=0.64

51、 = 68.06kN =138.16kN·m =256.59kN·m中柱:=5.8m, =2329.00, =290199, =12580,=2.18, =100.96kN =263.51 kN·m =322.06kN·第二層: 邊柱:=3.0m, =2165.92, =961931, =20029, ,=0.33= 45.10 kN =46.00kN·m =89.30kN·中柱:=3.0m, =2165.92, =961931, =51118,=1.13, = 115.10kN = 189.91kN·m =155.39kN

52、·m第三層:邊柱:=3.0m, =1966.27, =961931, =20029, ,=0.33 = 40.94kN =67.55kN·m =55.27kN·m 中柱:=3.0m, =1966.27, =961931, =51118,=1.13, = 104.49kN =169.27kN·m =144.20kN·m第四層:邊柱:=3.0m, =1698.36, =961931, =20029, ,=0.33 = 35.36kN = 63.65kN·m =42.43kN·m中柱:=3.0m, =1698.36, =96193

53、1, =51118,=1.13, = 90.25kN =146.21kN·m =124.55kN·m 第五層:邊柱:=3.0m, =1362.88, =961931, =20029, ,=0.33 = 28.38kN = 57.90kN·m =27.24kN·m中柱:=3.0m,=1362.88,=961931,=51118,=1.13, = 72.42kN =117.32kN·m =99.94kN·m 第六層:邊柱:=3.0m, =959.84, =961931, =20029, ,=0.33 =19.99kN =43.78kN&#

54、183;m = 16.19kN·m中柱:=3.0m, =959.84, =961931, =51118,=1.13, =51.00kN =90.27kN·m = 62.74kN·m第七層:邊柱:=3.0m, =486.91, =961931, =20029, ,=0.33 = 10.14kN = 26.47kN·m = 3.95kN·m中柱:=3.0m, =486.91, =961931, =51118,=1.13, = 25.87kN = 49.67kN·m = 27.94kN·m(3) 計算梁端彎矩。第一層:邊柱:=13

55、8.16+89.30= 227.46kN·m中柱:=(263.51+155.39)×=122.18kN·m =(263.51+155.39)×=296.72 kN·m第二層:邊柱:=46.00+55.27=101.27kN·m中柱: = (189.91+144.20)×= 97.45kN·m = (189.91+144.20)×=236.66kN·m第三層:邊柱:= 67.55+42.43= 109.98kN·m中柱:= (169.27+124.55)×=87.70kN

56、83;m = (169.27+124.55)×=208.12kN·m第四層:邊柱:=63.65+27.24= 90.89kN·m中柱:= (146.21+99.94) ×= 71.79kN·m = (146.21+99.94)×= 174.36kN·m第五層:邊柱:=57.90+16.19= 74.09kN·m中柱:= (117.32+62.74)×= 52.52kN·m =(117.32+62.74) ×=127.54kN·m第六層:邊柱:=43.78+3.95=47.73

57、kN·m中柱:= (90.27+27.94) ×= 34.48kN·m = (90.27+27.94) × =83.73kN·m第七層:邊柱:=25.87kN·m中柱:= 49.67×= 14.49kN·m ×= 49.67×= 35.18kN·m框架在地震作用下梁柱彎矩圖:(單位:kN·m) 橫向水平地震作用(從左到右)梁柱彎矩圖橫向框架在地震作用下梁端剪力、柱軸力圖:(單位:kN) 橫向水平地震作用(從左到右)梁端剪力圖 橫向水平地震作用(從左到右)柱軸力圖框架在地震作用

58、下柱剪力圖:(單位:kN) 橫向水平地震作用下(從左到右)柱剪力圖六豎向荷載作用下框架內(nèi)力分析。由于結(jié)構(gòu)是對稱的,在豎向荷載作用下的框架側(cè)移可忽略不計,其內(nèi)力分析采用分層法進(jìn)行簡化計算。以5軸橫向框架為例 1恒荷載及計算簡圖。(1) 屋面荷載:面層、防水層、隔熱層、保溫層、找平層: 1.5kN/110厚鋼筋混凝土板 : 2.75kN/15厚天棚水泥砂漿抹灰 : 0.30kN/吊頂棚 : 0.50kN/屋面恒載: 5.05kN/(2) 樓面荷載:水磨石地面(10mm面層,20mm水泥砂漿打底) 0.65kN/110厚鋼筋混凝土板 0.11×25=2.75kN/15厚天棚水泥砂漿抹灰 1

59、5×10×20=0.3kN/吊頂棚 0.5kN/樓面恒載: 4.2kN/ (3) 樓面荷載分配為等效均布荷載。圖見右短向分配: 長向分配: (4) 橫向框架梁上線荷載。(主梁600×250)1) .AB跨(CD跨)第7層: 梁自重(考慮抹灰): 0.25×0.6×25×1.1=4.13kN/m 屋面板傳給梁: 5.05×=15.85kN/m合計: 19.98kN/m 第1-6層: 梁自重(考慮抹灰): 0.25×0.6×25×1.1=4.13kN/m 樓面板傳給梁:4.2×=13.14

60、 kN/m 橫隔墻(200厚普通機(jī)制磚填充墻): 19×0.2×(3-0.6)=9.12kN/m合計: 22.30kN/m2) .BC跨第7層: 梁自重(考慮抹灰): 0.25×0.6×25×1.1=4.13kN/m 合計: 4.13kN/m第1-6層:梁自重(考慮抹灰): 0.25×0.6×25×1.1=4.13kN/m合計: 4.13kN/m(5) 橫向框架柱上集中荷載。1)4-5軸次梁線荷載。(次梁500×200)第7層: 梁自重(考慮抹灰): 0.5×0.2×25×1

61、.1=2.75kN/m屋面板傳給梁: 5.05×=15.85kN/m 合計: 18.6kN/m第1-6層:梁自重(考慮抹灰): 0.5×0.2×25×1.1=2.75kN/m樓面板傳給梁:4.2×=13.14 kN/m橫隔墻(200厚普通機(jī)制磚填充墻): 19×0.2×(3-0.5)=9.5kN/m合計: 25.43kN/m4-5軸梁剪力:第7層: 第1-6層:1) .A軸縱向框架梁荷載 (連梁500×250,女兒墻高800)第7層:均布線荷載 梁自重(考慮抹灰)0.25×0.5×25×

62、;1.1=3.44kN/m屋面板傳給梁: 5.05××1.8 = 5.68kN/m縱女兒墻自重(高800,240厚) 19×0.24×0.8=3.65kN/m合計: 12.77kN/m跨中集中荷載4-5軸傳來的:61.38kN第1-6層: 均布線荷載 0.25×0.5×25×1.1= 3.44kN/m樓面板傳給連梁: 4.2××1.8 = 4.73kN/mA軸玻璃幕墻自重(100厚): 1.0×(3-0.5)×0.85= 2.13kN/m合計: 10.30kN/m跨中集中荷載4-5軸傳

63、來的:83.92kN1) .B軸縱向框架梁荷載第7層:均布線荷載 梁自重(考慮抹灰)0.25×0.5×25×1.1=3.44kN/m屋面板傳給梁: 5.05×+5.05×=12.5kN/m合計: 15.94kN/m跨中集中荷載4-5軸傳來的:61.38kN第1-6層: 均布線荷載 0.25×0.5×25×1.1= 3.44kN/m樓面板傳給梁: 4.2×+4.2×=10.4kN/m縱向隔墻自重(考慮門洞):19×0.2×(3-0.5)×0.85=8.08kN/m合計: 21.92kN/m跨中集中荷載4-5軸傳來的:83.92kN4)C軸同B軸5)D軸縱向框架梁第7層:均布線荷載 梁自重(考慮

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