老年活动中心结构计算书及施工组织设计(共76页).doc

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1、精选优质文档-倾情为你奉上1. 摘要11中文摘要及中文关键词 本设计是老年活动中心设计。总建筑面积为5815，底层占地面积为1228.5，总高为21.30m。根据设计要求，设防烈度为7度，机构抗震等级为三级，设计中要考虑抗震设计。本方案采用钢筋混凝土现浇框架结构。主体结构为双向承重框架，横向框架等跨。在进行荷载计算和构件截面估算后，选取一榀框架进行计算，并对最不利活荷载和最不利内力进行分析，通过底部剪力法求出地震荷载。本方案基础形式采用沉管灌注桩基础.整个方案设计基本符合设计和结构要求，具有一定的创造性和合理性。关键词：钢筋混凝土结构 框架结构 荷载设计值 荷载效应 Abstract1.2 E

2、nglish Abstract And KeywordsAbstract: It is that the Elderly Activity Center designs to originally design. The total construction area is 5815, the floor space of ground floor is 1228.5, the total height is 21.30m。According to the designing requirement , the earthquake intensity is 7 degrees to set

3、up defences, the grade of antidetonation is three grade, consider aseismatic design in the design. This scheme adopts the cast-in-place frame structure of armored concrete . The agent structure is a two-way bearing frame , horizontal frame ,etc. are stepped. In is it is it calculate and component se

4、ction after estimating , choose one Pin frame calculate to load to go on, calculate the internal force by changing and taking the place of the law, and the live load and the most unfavorable internal force disadvantageous that most are analysised , cut strength law is it happen through bottom earthq

5、uake load to ask. This basic form of scheme adopts the independent foundation under the post. The whole conceptual design accords with the design and structure demand basically, have certain creativity and rationality. Keyword:Reinforced concrete structure frame structure design value of a load load

6、 combination 2结构设计2.1工程概况长春市拟建五层老年活动中心，建筑面积5815m2,拟建房屋所在地的特征周期Tg=0.35s,基本雪压S0=0.35KN/m2,基本风压W0=0.65KN/m2,地面粗糙度为C类，土重度为18KN/m3，地基承载力特征值fak=200KN/m2,土壤最大冻土深度-1.7m，地震设防烈度七度.2.2结构布置及计算简图 一层：3.9m二至五层：3.6m电梯机房：3.0m填充外墙190mm厚陶粒空心砌块，木门及窗口尺寸见图1；楼盖采用现浇钢筋混凝土结构，楼板厚120mm,局部130mm,主梁300mmX750mm,次梁300mmX700mm，一层梁柱板

7、混凝土强度等级C35(fc=16.7N/mm2, ft=1.57N/mm2)，一层以上梁柱板混凝土强度等级C30(fc=14.3N/mm2, ft=1.43N/mm2)柱截面尺寸估算:框架结构的抗震等级为三级，其轴压比限制N=0.9,各层的重力荷载代表值取13KN/m2,边柱及中柱的负载面积分别为7.8mX4.2m和7.8mX5.85m。因此第一层柱截面面积为边柱 中柱 如取柱截面为正方形，则边柱和中柱截面高度分别为470mm和550mm,根据上述计算结构并考虑其他因素，本设计柱截面尺寸取值如下： 一层：700mmX700mm; 二至五层：600mmX600mm;基础选用桩基础，承台埋深1.8

8、m,承台截面高度取1.0m,框架结构计算简图去顶层柱形心线作为框架柱的轴线，梁轴线取至板底，26层柱高度即为层高，底层柱高度从基础顶面取至一层板底，即h1=3.9+0.4+1.8-1.0=5.10m.2.3重力荷载计算2.3.1屋面及楼面的永久荷载标准值上人屋面 40厚C20细石混凝土保护层 22X0.04=0.88 KN/m2 4厚APP改性沥青防水层 0.40 KN/m2 20厚水泥砂浆找平层 20X0.02=0.40 KN/m2 1：10水泥珍珠岩找坡层 15X0.02=0.30 KN/m2 80厚聚苯乙烯保温层 0.5X0.08=0.04 KN/m2 10厚1：3水泥砂浆找平层 20X

9、0.01=0.20 KN/m2 130厚现浇混凝土屋面板 25X0.13=3.25 KN/m2 20厚混合砂浆抹面 20X0.02=0.40 KN/V型轻钢龙骨吊顶 0.25KN/ 合计 6.12 KN/m2楼面瓷砖地面（包括水泥粗砂打底） 0.55 KN/m220厚1：3水泥砂浆找平层 20X0.02=0.40 KN/m2120厚钢筋混凝土楼板 25X0.12=3.0 KN/m220厚混合砂浆抹面 20X0.02=0.40 KN/m2V型轻钢龙骨吊顶 0.25KN/ 合计 4.6 KN/2.3.2屋面及楼面可变荷载标准值 上人屋面均布活荷载标准值 2.0 KN/m2 楼面活载标准值 2.00

10、 KN/m2屋面雪荷载标准值 SK=R*S0=1.0X0.35=0.35 KN/m22.3.3梁、柱、墙、窗、门重力荷载计算 梁柱可根据截面尺寸、材料容重及粉刷等计算单位长度上的重力荷载、对墙、门、窗等可计算单位面积上的重力荷载，计算结构见（表1） 表1. 梁、柱重力荷载标准值层次构件 b/mh/m（kN/m3）g(kN/m)Li/mnGi(kN)Gi（KN）1边横梁0.30.75251.056.8917.8211128.681中横梁0.250.4251.05212.71056.71次梁0.30.7251.055.5138.314640.5533314.3121纵梁0.30.75251.056

11、.8917.2301488.3751柱0.70.7251.1013.4755.1392680.1782680.1782-5边横梁0.30.75251.056.8917.8211128.6842-5中横梁0.250.4251.052.12.71056.73314.3122-5次梁0.307251.055.5138.314640.5532-5纵梁0.30.75251.056.8917.2301488.3752-5柱0.60.6251.109.903.6391389.961389.96 墙体外墙体为190mm厚陶粒空心砌块，外贴100mm厚苯板，贴墙面砖，内墙面20mm厚抹灰，则外墙单位墙重力荷载为

12、： 0.5+0.10.50.1960.02172.03KN/ 内墙为190mm厚陶粒空心砌块，两侧均为20mm厚抹灰，则单位面积重力荷载为： 6.0X0.19+17X0.02X2=1.82KN/ 木门单位面积重力荷载为0.2 KN/，铝合金门窗单位面积重力荷载为0.4 KN/m2，钢框玻璃门单位面积重力荷载为0.5KN/2.3.4 重力荷载代表值 1层：外墙面积： 7.8143.15573.15523.53 窗户总面积： 2.12.1242.42.1142.10.92180.18 门总面积： 1.82.422.42.4220.16 外墙净面积 523.53-180.18-2016=323.19

13、 内墙总面积8.43.15103.33.157.893.15496.125门面积1.82.440.92.421.52.4539.6窗户面积1.50.91.35内墙净面积496.125-39.6-1.35=455.175外墙重： 323.192.03656.076KN内墙重： 455.1751.82828.419KN门窗： 2.42.420.51.82.420.439.60.20.4180.181.3589.75KN楼板重： 54.820.315.88.4-3.78.22-2.42.32 4.6=5384.21KN电梯间重 16.53.90.225=321.75KN楼梯间重 23.98.4106

14、55.2KN2层：外墙面积： 7.8142.858.462.853.33.22475.98窗户总面积： 2.11.8282.10.922.41.812161.46外墙净面积 475.98-161.46=314.52内墙面积 8.4102.857.8122.85=506.16门面积 2.41.8100.921.551.12内墙净面积 506.16-51.12=455.04外墙净重 314.522.03=638.476KN内墙净重 455.041.82=828.173KN门窗重 161.460.451.120.2=74.81KN楼板重 54.820.315.88.4-3.78.22-2.42.32

15、 4.6=5384.21KN楼梯间重 3.98.4210=655.20KN电梯间重 16.53.60.225=297.0KN三四层的计算过程及结果同二层五层 外墙面积 7.8142.858.462.853.33.22=475.98窗户面积 2.11.8282.10.922.41.812=161.46外墙净面积 475.98-161.46=314.52内墙面积 8.4102.857.8122.85=506.16门面积 2.41.8110.92=51.84内墙净面积 506.16-51.84=454.32外墙净重 314.522.03638.476KN内墙净重 454.321.82=826.862

16、KN门窗重 51.840.2161.460.4=74.95KN屋面板重 7.878.423.37.828.4-3.98.42-2.42.32 6.12=7049.87KN楼梯间重 3.98.4210=655.20KN电梯间重 16.53.60.225=297.0KN电梯机房 墙重 27.52.8-0.92.10.2250.92.10.2=375.93KN楼板重 6.40.624.90.626.12=283.72KN楼梯出屋面房间 梁重 305.96KN柱重 237.60KN外墙净面积 3.942.258.442.12.10.92=101.88门面积 2.10.92=3.78外墙净重 101.8

17、82.03=206.816KN门重 3.780.2=0.756KN屋面重 3.91.28.41.226.12=599.27Kn女儿墙重 55.4229.320.60.225=508.80KnG1k=5384.213314.3120.52680.178656.076828.41989.75321.75655.200.51389.96638.476828.17374.81655.20297.0=13256.019kNQ1K=0.50.254.8020.3015.88.423.98.423.98.42.50.5=1261.54KnG1=13256.0191261.54=14517.559KnQ2k=

18、5384.213314.3120.51389.96638.476828.17374.81655.2297.00.51389.96638.476828.17374.81655.20297.0=12582.141KnQ2k=Q1k=1261.54kNG2=12582.1411261.54=13843.681kNG4=G3=G2=13843.681kNG5k=7049.873314.3120.5638.476826.86274.95655.20297.0508.80.5375.93237.6206.8160.756=12529.777kNQ5k=0.50.3554.820.315.88.4-23.9

19、8.423.98.42.50.5=288.34kNG5=12529.777288.34=12818.117kNG6k=283.72599.27305.960.5375.93237.60206.8160.756=1599.501kN Q6k=0.50.353.91.28.41.26.41.24.91.2=25.25kNG6=1599.50125.25=1624.75kN 各质点重力荷载代表值 2.4框架侧移刚度计算2.4.1 横向框架侧移刚度计算 横梁线刚度ib计算过程见下表 横梁线刚度ib计算表类别 层次EcbhI0lEcI0/l1.5EcI0/l2EcI0/l边横梁 13.010430075

20、01.23101084004.393*10106.590*10108.786*1010边横梁2-53.01043007501.230*101084004.393*10106.590*10108.786*1010中横梁13.01043007501.230*101084004.393*10106.590*10108.786*1010中横梁2-53.01043007501.230*101084004.393*10106.590*10108.786*1010走道梁 13.01042504001.067*10933009.7*1091.455*10101.94*1010走道梁2-53.010425040

21、01.067*10933009.7*1091.455*10101.94*1010 柱刚度ic计算表层次Hc（mm）EC (N/mm2)bxh(mmxmm)Ic(mm4)EcIc/ Hc(Nmm)151003.15X104700X7002.001X10101.236X10112536003.0X104600X6001.08X10109.45X1010 中框架柱侧移刚度D值(N/mm)层次边柱中柱DiKacDilKacDil10.7110.477254900.8680.47727220250.9300.317277381.1350.36231679边框架柱侧移刚度D值(N/mm)层次B1 E1 A

22、6 A8 E8C1 D1 C8 D8 B8DiKacDilKacDil10.5330.408232550.6510.43424749250.9300.317277650.8510.29826075 楼梯、电梯间框架柱侧移刚度D值(N/mm)层次D-3 D-1/3 D-1/5 D-6E-3 E-1/3 E-1/5 E-6DiKacDilKacDil10.6900.442252050.5330.40823266250.9030.31127213 0.6970.25922663将以上同层框架柱侧移刚度相加，得框架各层层间侧移刚度Di，如下表所示横向框架层间侧移刚度(N/mm)层次126Di由上表可见

23、，D1/D2=0.8900.7故：该框架为规则框架2.5 横向水平荷载作用下框架结构的内力和侧移计算2.5.1横向水平地震作用下框架结构的内力和侧移计算（1） 横向自震周期计算 将G6折算到主体结构的顶层，即：结构顶点的假想侧移计算层次Gi (KN)Vgi(KN)Di(N/mm)ui(mm)ui(mm)514817.80914817.80912.8191.8413843.68128661.4924.8179313843.68142505.17136.7154.221384.68156348.85248.7117.5114517.55970866.41168.868.8基本周期T1, T=0.1

24、918,取T=0.7，则(2)、水平地震作用及楼层地震剪力计算该结构高度不超过40m，质量和刚度沿高度分布比较均匀，变形以剪切型为主，故可用底部剪力法计算水平地震作用。结构总水平地震作用标准值计算，即Geq=0.85Gi=0.85(14517.559+13843.6813+12818.117+1624.75) =0.8570491.47 =59916.01kN设计地震分组为第一组场地类别为类场地特征周期Tg=0.35S T1=0.52SFek=1Geq=0.056X59916.01=3355.30KN1.4Tg=1.4X0.35=0.49sT1=0.52s 需要考虑顶部附加水平地震作用F6=0

25、.116X3355.30=374.50KN具体过程见下表 各质点横向水平地震作用及楼层地震剪力计算表层次Hi/mGi/KNGiHi /KN*mFi/KNVi/KN22.51624.7536556.880.042125.2125.2519.512818.117.280.2871230.01355.2415.913843.681.530.253754.12109.3312.313843.681.280.195581.32690.628.713843.681.020.138411.43102.015.114517.55974039.550.085253.43355.4各质点水平地震作用及楼层地震剪力

26、沿房屋高度的分布见下图（3）、水平地震作用下的位移验算水平地震作用下框架结构的层间位移ui和定点位移ui分别按式 和 计算，计算结果如下表: 横向水平地震作用下的位移验算层次Vi/KNDi (N/mm)ui/mmui/mmhi/mm51355.21.1711.636001/307742109.31.210.0936001/197832690.62.338.2736001/154523102.02.685.9436001/134313355.43.263.2651001/1564由上表可见，最大层间弹性位移角发生在第二层，其值为1/13431/550，故满足要求（4）水平地震作用下框架内力计算

27、取轴一榀横向框架计算 各层柱端弯矩及剪力计算（边柱）层次Hi/mVi/KNDij (N/mm)Di1Vi1y53.61355.22773832.490.9300.3540.9476.0343.62109.32773850.560.9300.41575.54106.4833.62690.62773864.500.9300.45104.49127.7123.63102.02773874.360.9300.46123.14144.5615.13355.42549083.070.7110.67283.85139.81各层柱端弯矩及剪力计算（中柱）层次Hi/mVi/KNDij (N/mm)Di1Vi1y

28、53.61355.23167937.101.1350.3648.0885.4843.62109.33167957.751.1350.4593.56114.3533.62690.61171003167973.661.1350.46121.98143.2023.63102.03167984.931.1350.50152.87152.8715.13355.42722088.710.8680.64289.55162.87注：表中M量纲为KNm，V量纲为KN。 梁端弯矩剪力及柱轴力计算层次边横梁走道梁柱轴力LL边柱N中柱N576.0370.028.417.3915.4615.463.39.37-17.3

29、9-8.024147.42133.038.433.3929.4029.403.317.82-50.78-23.593203.25193.918.447.2842.8542.853.325.97-98.06-44.902249.05225.108.456.4549.7549.753.330.15-154.51-71.201262.95258.198.462.0957.1557.153.334.64-216.60-98.65水平地震作用下框架的弯矩图、梁端剪力图及柱轴力图如下： 左震作用下框架弯矩图（kNm） 左震作用下梁端剪力及柱轴力图2.5.2横向风荷载作用下框架结构内力和侧移计算（1）.风荷

30、载标准值 风荷载标准值按式k= zzswo 基本风压0=0.65kN/,根据荷载规范，s=0.8(迎风面)和s=-0.5（背风面）。C类地区，H/B=19.5/54.6=0.357，脉动影响系数=0.40.T1=0.52s, 0 T12=0.620.650.522=0.11kNS2/m2, =1.24,则Z=1+Z/Z=1+ (1.240.40)/ z Hi/H任取轴线横向框架，其负载宽度为7.8m，则沿房屋高度的分布风荷载标准值 q(z)=7.80.65zzs=5.07zzs根据各楼层标高处的高度Hi,查得z，代入上式可得各楼层标高处的q(z) 沿房屋高度分布风荷载标准值层次Hi/mHi/H

31、zzq1(z)/(k/m)q2(z)/(kN/m)519.51.0000.831.5985.3803.362415.90.8150.761.5324.7222.952312.30.6310.741.4234.2712.66928.70.4460.741.2993.8992.43715.10.2620.741.1763.5302.206根据荷载规范，该建筑高度H=19.5m30m,H/B=19.5/20.1,=0.971.5,故不考虑风压脉动的影响。按静力等效原理将分布风荷载转化为节点集中荷载，Fwi=zzswoB(H下/2+H上/2)F5=（5.051+5.380）3.60.50.5+(3.1

32、57+3.362) 3.60.50.5=15.26kNF4=(5.051+4.722) 3.60.50.5+(4.497+4.722) 3.60.50.5+(3.157+2.95203.60.50.5+（2.952+2.811）3.60.50.5=27.78kNF3=(4.271+4.497) 3.60.50.5+(4.085+4.271) 3.60.50.5+(2.669+2.811) 3.60.50.5+(2.553+2.669) 3.60.50.5=25.04kNF2=(3.899+4.085) 3.60.50.5+(3.715+3.899) 3.60.50.5+(2.437+2.553

33、) 3.60.50.5+(2.322+2.437) 3.60.50.5=22.81kNF1=(3.530+3.715) 3.60.50.5+3.530 5.10.5+(2.206+2.322) 3.60.50.5+2.2065.10.5=25.22kN（2）风荷载作用下的水平位移验算 风荷载作用下框架层间剪力及侧移计算层次Fi/KNVi/KNDij (N/mm)ui/mmui/mm125.22116.111.101.101/4636222.8190.890.761.861/4737325.0468.080.572.431/6316427.7843.040.362.791/10000515.26

34、15.260.132.921/27692由上表可见，最大层间弹性位移角发生在第一层，其值为1/46361/550，故满足要求（3）风荷载作用下框架内力计算 取轴一榀横向框架计算 各层柱端弯矩及剪力计算（边柱）层次Hi/mVi/KNDij (N/mm)Di1Vi1y53.615.26277383.560.9300.354.498.3343.643.042773810.050.9300.4014.4721.7133.668.082773815.890.9300.4525.7431.4623.690.892773821.220.9300.4635.1441.2515.1116.112549028.0

35、70.7110.6795.9247.24 各层柱端弯矩及剪力计算（中柱）层次Hi/mVi/KNDij (N/mm)Di1Vi1y53.615.26316794.071.1350.365.279.3843.643.043167911.471.1350.4116.9324.3633.668.083167918.151.1350.4630.0635.2823.690.893167924.231.1350.5043.6143.6115.1116.112722029.980.8680.6396.3356.57注：表中M量纲为KNm，V量纲为KN。 梁端弯矩剪力及柱轴力计算层次边横梁走道梁柱轴力LL边柱N中柱N58.337.698.41.911691.693.31.02-1.91-0.89426.2324.308.46.025.335.333.33.23-7.93-3.68345.9342.818.410.569.409.403.35.70-18.49-8.54266.9960.418.415.1713.2613.263.38.04-33.66-15.67182.3882.158.419.5918.0318.033.310.93-53.25-24.33 左风作用下框架弯矩图（kNm） 左风作用下梁端剪力及柱轴力图（kN）2.6竖向荷载作用下框架结构的内力计算