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'.结构计算书1设计资料××(1)工程名称:六安市某医院住院部。(2)结构形式:现浇钢筋混凝土框架结构,柱网尺寸为8.2m×7.2m8.0m×7.2m。(3)工程概况:建筑层数3层,层高4.2m,室内外高差450mm,女儿墙高1000mm,建筑高度14.05m,建筑面积3995.826m2。(4)基本风压:0.45kN/m2,地面粗糙度为C类。(5)基本雪压:0.40kN/m2。(6)抗震设防烈度:七度设防。(7)材料选用:钢筋:梁、柱中的纵向钢筋采用HRB335HRB400,板中钢筋和箍筋采用HPB300;基础中除分布钢筋和箍筋采用HPB300外,其余钢筋采用HRB335HRB400。混凝土:采用C30混凝土;墙体:采用加气混凝土砌块,重度=5.5kN/m3;窗:铝合金窗,=0.35kN/m3;(8)墙体厚度:医务室和卫生间的隔墙厚100mm,其余墙厚240mm。结构平面布置图如图1所示。图1结构平面布置图..
.2梁、柱截面尺寸估算2.1梁截面尺寸估算框架梁截面高度,截面宽度,本结构中取:纵向框架梁:b=250mmh=600mm横向AB、CD跨框架梁:b=250mmh=700mm横向AB、CD跨框架梁b=250mmh=700mm横向BC跨框架梁:b=250mmh=400mm次梁:b=250mmh=700mm2.2柱截面尺寸估算框架柱的截面尺寸,,为第层层高。本结构中层高为3.6m,故=(200~300)mm。(没有依据占时以此计算)框架柱截面尺寸还应根据公式估算。式中:,负荷面积×(12~14)kN/m2×层数,为轴压比,可根据规范查出。仅估算底层柱。本结构中,边柱和中柱负荷面积分别为(7.23)m2,(7.24.35)m2,层数为5层;该框架结构抗震设防烈度为七度,建筑高度18.45m<30m,因此为三级抗震,其轴压比限值=0.9。C30混凝土,=16.7N/mm2边柱mm2中柱mm2取柱截面为正方形,则边柱、中柱截面分别为375mm375mm,452mm452mm,考虑到施工、计算简便以及安全因素,各柱截面尺寸从底层到顶层均取为500mm500mm。3框架计算简图及梁柱线刚度3.1确定框架计算简图(KJ-4)框架的计算单元如图1所示,选取④..
.轴线上的一榀框架进行计算,其余框架可参照此框架进行配筋。假定框架柱嵌固于基础顶面,框架梁与柱刚接。由于各层柱的截面尺寸不变,故梁跨等于柱截面形心轴线之间的距离。底层柱高从基础顶面算至二层楼面,基础顶面至室外地面的高度为0.5m,室内外高差为0.45m,因此基顶标高为-0.95m,二层楼面标高为3.6m,故底层框架柱高为4.55m,其余各层柱高从楼面算至上一层楼面(即层高),故均为3.6m。由此可绘出框架的计算简图,如图2所示。3.2梁柱线刚度计算对于现浇楼板,中框架梁取,,。各跨框架梁和各层框架柱的线刚度计算分别见表1和表2。由于该榀框架结构对称,因此只需计算半边结构。表1梁线刚度的计算构件EC(N/mm2)bh(mm×mm)I0(mm4)L(mm)1.5ECI0/L(N×mm)2ECI0/L(N×mm)边框架梁AB3.0×104250×5002.6042×10960001.9532×10102.6042×1010中框架梁BC3.0×104250×4001.3333×10927002.2222×10102.9630×1010表2柱线刚度的计算层EC(N/mm2)bh(mm×mm)I0(mm4)h(mm)ECI0/h(N×mm)13.0×104500×5005.2083×10945503.4341×10102~53.0×104550×5005.2083×10936004.3403×1010令,则其余各杆件的相对线刚度为:,,框架结构的相对线刚度如图2所示。4荷载计算4.1恒荷载标准值计算图2计算简图..
.4.1.1屋面高聚物改性沥青卷材防水屋面2.20kN/m2结构层:120厚现浇钢筋混凝土板0.12×25=3kN/m2抹灰层:粉刷石膏砂浆0.15kN/m2合计5.35kN/m24.1.2各层楼面陶瓷地砖楼面0.70kN/m2结构层:100厚现浇钢筋混凝土板0.12×25=3kN/m2抹灰层粉刷石膏砂浆0.15kN/m2合计3.85kN/m24.1.3梁自重(1)bh=250mm600mm梁自重25×0.25×(0.6-0.12)=3kN/m抹灰层:粉刷石膏砂浆0.15×﹝(0.6-0.12)×2+0.25﹞=0.18kN/m合计3.18kN/m(2)bh=250mm500mm梁自重25×0.25×(0.5-0.12)=2.38kN/m抹灰层:粉刷石膏砂浆0.15×﹝(0.5-0.12)×2+0.25﹞=0.15kN/m合计2.53kN/m(3)bh=250mm400mm梁自重25×0.25×(0.4-0.12)=1.75kN/m抹灰层:粉刷石膏砂浆0.15×﹝(0.4-0.12)×2+0.25﹞=0.12kN/m合计1.87kN/m(4)基础梁250mm400mm梁自重25×0.25×0.4=2.5kN/m4.1.4柱自重bh=450mm450mm柱自重25×0.5×0.5=6.25kN/m抹灰层:粉刷石膏砂浆0.15×0.5×4=0.3kN/m合计6.55kN/m..
.4.1.5外纵墙自重(1)标准层纵墙在计算单元内相当于高度为m的墙,铝合金窗在计算单元内相当于高度为m的窗。纵墙1.68×0.25×5.5=2.31kN/m铝合金窗1.32×0.35=0.46kN/m水刷石外墙面1.68×0.5=0.84kN/m粉刷石膏砂浆内墙面1.68×0.15=0.25kN/m合计3.86kN/m(2)底层纵墙在计算单元内相当于高度为m的墙,铝合金窗在计算单元内相当于高度为1.32m的窗。纵墙2.23×0.25×5.5=3.07kN/m铝合金窗1.32×0.35=0.84kN/m水刷石外墙面2.23×0.5=1.12kN/m粉刷石膏砂浆内墙面1.68×0.15=0.25kN/m合计4.90kN/m4.1.6内纵墙自重(1)标准层纵墙(3.6-0.6)×0.25×5.5kN/m粉刷石膏砂浆内墙面(3.6-0.6)×0.15×2=0.90kN/m合计5.03kN/m(2)底层纵墙(4.55-0.6-0.4)×0.25×5.5=4.88kN/m粉刷石膏砂浆内墙面(3.6-0.6)×0.15×2=0.90kN/m合计5.78kN/m4.1.7外横墙自重(1)标准层..
.横墙(3.6-0.5)×0.25×5.5=4.26kN/m水刷石外墙面(3.6-0.5)×0.5=1.55kN/m粉刷石膏砂浆内墙面(3.6-0.5)×0.15=0.47kN/m合计6.28kN/m(1)标准层横墙(4.55-0.5-0.4)×0.25×5.5=5.02kN/m水刷石外墙面(3.6+0.45-0.5)×0.5=1.78kN/m粉刷石膏砂浆内墙面(3.6-0.5)×0.15=0.47kN/m合计7.27kN/m4.1.8内横墙自重(1)标准层横墙(3.6-0.5)×0.25×5.5=4.26kN/m粉刷石膏砂浆内墙面(3.6-0.5)×0.15×2=0.93kN/m合计5.19kN/m(2)底层横墙(4.55-0.5-0.4)×0.25×5.5=5.02kN/m粉刷石膏砂浆内墙面(3.6-0.5)×0.15×2=0.93kN/m合计5.95kN/m4.1.9走廊尽头墙(2)底层纵墙在计算单元内相当于高度为m的墙,铝合金窗在计算单元内相当于高度为m的窗。走廊尽头墙1.38×0.25×5.5=1.90kN/m铝合金窗1.72×0.35=0.60kN/m水刷石外墙面1.38×0.5=0.69kN/m粉刷石膏砂浆内墙面1.38×0.15=0.21kN/m合计3.40kN/m(2)底层..
.纵墙在计算单元内相当于高度为m的墙,铝合金在计算单元内相当于高度为1.72m的窗。走廊尽头墙1.93×0.25×5.5=4.13kN/m铝合金窗1.72×0.35=0.60kN/m水刷石外墙面1.93×0.5=0.97kN/m粉刷石膏砂浆内墙面1.38×0.15=0.21kN/m合计4.43kN/m4.1.10女儿墙自重做法:100mm混凝土压顶,1200mm加气混凝土墙0.5×0.25×5.5=0.69kN/m压顶的混凝土0.1×0.25×25=0.63kN/m水刷石外墙面(0.6×2+0.25)×0.5=0.73kN/m合计2.05kN/m4.2活荷载标准值计算4.2.1屋面和楼面活荷载标准值不上人屋面0.5kN/m2房间2.0kN/m2走廊2.0kN/m24.2.2雪荷载标准值=1.0×0.40kN/m2屋面活荷载和雪荷载不同时考虑,两者中取大值。4.3恒荷载和活荷载作用下框架的受荷图A~B轴间梁上板的,按双向板进行计算,长边支承梁上荷载呈梯形分布,短边支承梁上荷载呈三角形分布;B~C轴间梁上板的..
.,按单向板进行计算,荷载平均分给两长边的支承梁。本结构楼面荷载的传递示意图见图3。图3板传荷载示意图板传至梁上的三角形荷载等效为均布荷载;梯形荷载等效为均布荷载,,,。4.3.1A~B轴间框架梁屋面板传给梁(即屋面板两个梯形荷载等效为均布荷载):恒荷载:5.35×1.8×0.847×2=16.31kN/m活荷载:0.5×1.8×0.847×2=1.52kN/m楼面板传给梁(即楼面板两个梯形荷载等效为均布荷载):恒荷载:3.85×1.8×0.847×2=11.74kN/m活荷载:2.0×1.8×0.847×2=6.10kN/mA~B轴间框架梁均布荷载为:屋面梁恒荷载=梁自重+板传恒荷载=2.53+16.31=18.84kN/m活荷载=板传活荷载=6.6kN/m楼面梁恒荷载=内横墙自重+梁自重+板传恒荷载=2.53+5.19+11.74=19.46kN/m活荷载=板传活荷载=6.10kN/m4.3.2B~C轴间框架梁B~C轴间框架梁均布荷载为:屋面梁、楼面梁恒荷载=梁自重=1.87kN/m活荷载=04.3.3A轴柱纵向集中荷载的计算屋面板三角形荷载等效为均布荷载:恒荷载:5.35×1.8×=6.02kN/m活荷载:0.5×1.8×=0.56kN/m楼面板三角形荷载等效为均布荷载:恒荷载:3.85×1.8×=4.33kN/m..
.活荷载:2.0×1.8×=2.25kN/m顶层柱恒荷载=女儿墙自重+外纵框架梁自重+板传恒荷载+次梁传恒荷载=2.05×7.2+3.18×(7.2-0.5)+6.02×(7.2-0.5)++=132.92kN顶层柱活荷载=板传活荷载=3.18×(7.2-0.5)+=8.31kN标准层柱恒荷载=外纵墙自重+外纵框架梁自重+板传恒荷载+次梁传恒荷载=3.86×(7.2-0.5)+3.18×(7.2-0.5)+4.33×(7.2-0.5)++=118.99kN标准层柱活荷载=板传活荷载=2.25×(7.2-0.5)+=33.38kN基础顶面恒荷载=底面外纵墙自重+基础梁自重=4.90×(7.2-0.5)+2.5×(7.2-0.5)=49.58kN4.3.4B轴柱纵向集中荷载的计算走廊屋面板均布荷载:恒荷载:5.35×1.35=7.22kN/m活荷载:0.5×1.35=0.68kN/m走廊楼面板均布荷载:恒荷载:3.85×1.35=5.20kN/m活荷载:2.0×1.35=3.38kN/m顶层柱恒荷载=内纵框架梁自重+板传恒荷载+次梁传恒荷载=3.18×(7.2-0.5)+6.02×(7.2-0.5)++7.22×(7.2-0.5)..
.+=166.53kN顶层柱活荷载=板传活荷载=0.56×(7.2-0.5)++0.68×(7.2-0.5)=12.87kN标准层柱恒荷载=内纵墙自重+内纵框架梁自重+板传恒荷载+次梁传恒荷载=5.03×(7.2-0.5)+3.18×(7.2-0.5)+4.33×(7.2-0.5)++5.20×(7.2-0.5)+=161.67kN标准层柱活荷载=板传活荷载=2.25×(7.2-0.5)++3.38×(7.2-0.5)=56.03kN基础顶面恒荷载=底面内纵墙自重+基础梁自重=5.78×(7.2-0.5)+2.5×(7.2-0.5)=55.48kN..
.图4恒荷载和活荷载作用下框架的受荷图注:1.图中集中力的单位为kN,均布力的单位为kN/m;2.图中数值均为标准值;3.括号外数值表示恒荷载,括号内数值表示活荷载。框架在恒荷载和活荷载作用下受荷图如图4所示,竖向荷载与柱轴心有偏心,偏心距均为125mm。4.4风荷载标准值计算为简化计算,将计算单元范围内外墙面的风荷载化为等量的作用于楼面的集中风荷载,计算公式为:式中:—基本风压,为0.45kN/m2—风压高度变化系数,地面粗糙度为C类—风荷载体形系数,=0.8-(-0.5)=1.3(迎风面、背风面叠加)—风振系数,因房屋高度小于30m,所以=1.0—下层柱高—上层柱高,对于顶层为女儿墙高2倍..
.B—计算单元迎风面宽度,B=7.2m计算过程见表3。表3各层楼面处集中风荷载标准值离地高度(m)(m)(m)(kN)18.450.8091.01.33.61.28.1814.850.741.01.33.63.611.2211.250.741.01.33.63.611.227.650.741.01.33.63.611.224.050.741.01.34.053.611.92风荷载作用下结构的受荷图如图5所示。4.5水平地震作用计算4.5.1重力荷载代表值计算4.5.1.1屋面处重力荷载标准值计算kNkN=917.11kN图5风荷载作用下框架的受荷图注:1.图中各值的单位为kN;2.图中数值均为标准值..
.kN外纵墙+内纵墙+外横墙+内横墙+走廊尽头墙==602.63kN=239.44+3553.68+917.11+308.11+602.63=5620.97kN4.5.1.2标准层楼面处重力荷载标准值计算kNkN=917.11kNkN=+++=1205.26+2557.32+917.11+638.23=5317.92kN4.5.1.3底层楼面处重力荷载标准值计算+=747.88kNkN=2557.32kN=917.11kN=638.231.136=725.34kN=+++=1350.51+2557.32+917.11+725.34=5550.28kN4.5.1.4屋顶雪荷载标准值计算kN..
.4.5.1.5楼面活荷载标准值计算==1387.48kN4.5.1.6总重力荷载代表值计算屋面处:=屋面处结构和构件自重+0.5雪荷载标准值=5620.97+0.5265.70=5753.82kN标准层楼面处:=楼面处结构和构件自重+0.5活荷载标准值=5317.92+0.51387.48=6011.66kN底层楼面处:=楼面处结构和构件自重+0.5活荷载标准值=5550.28+0.51387.48=6244.02kN4.5.1.7总重力荷载设计值计算屋面处:=1.2屋面处结构和构件自重+1.4雪荷载标准值=1.25620.97+1.4265.70=7117.14kN标准层楼面处:=1.2屋面处结构和构件自重+1.4活荷载标准值=1.25317.92+1.41387.48=8323.98kN底层楼面处=1.2屋面处结构和构件自重+1.4活荷载标准值=1.25550.28+1.41387.48=8602.81kN4.5.2框架柱抗侧刚度D和结构基本自振周期计算4.5.2.1横向D值计算各层柱的D值及总D值见表4~表9。表4横向2~5层中框架D值计算构件名称..
.框架柱A0.239243框架柱B0.3915673表5横向底层中框架D值计算构件名称框架柱A0.469156框架柱B0.5811545表6横向2~5层边框架D值计算构件名称框架柱A0.187234框架柱B0.5811545表7横向底层边框架D值计算构件名称框架柱A0.428360框架柱B0.5310550表8横向2~5层总D值计算构件名称D值(kN/m)数量中框架A轴9243546215中框架B轴15673578365边框架A轴7234214468边框架B轴12860225720=1647682=329536表9横向底层总D值计算构件名称D值(kN/m)数量..
.中框架A轴9156545780中框架B轴11545557725中框架A轴8360233440边框架B轴10550242200=1413252=2826504.5.2.2结构基本自振周期计算用假想顶点位移计算结构基本自振周期,计算结果见表10。表10假想顶点侧移计算结果层次(kN)(kN)(kN/m)(m)(m)55753.825753.823295360.01750.285646011.6611765.483295360.03570.268136011.6617777.143295360.05390.232426011.6623788.803295360.07220.178516244.0230032.822826500.10630.1063结构基本自振周期考虑非结构墙影响折减系数=0.6,则结构基本自振周期为:s4.5.3多遇水平地震作用计算由于该工程所在地区抗震设防烈度为七度,场地土为Ⅱ类,设计地震分组为第一组,故:kN由于,故式中:—衰减指数,在区间取0.9—阻尼调整系数,取1.0所以,=0.55s<1.4=0.49s需要考虑顶部附加水平地震作用的影响,顶部附加地震..
.作用系数:如图6所示,对于多质点体系,结构底部总纵向水平地震图6楼层水平地震作用作用标准值:kN标准值(单位:kN)附加顶部集中力:kN质点i的水平地震作用标准值、楼面地震剪力及楼面层间位移的计算过程见表11。其中:表11,和的计算层(kN)(m)(kN·m)(kN·m)(kN)(kN)(kN/m)(m)55753.8218.95109034.89349087.80564.38796.873295360.0024246011.6615.3592278.98349087.80477.651274.523295360.0038736011.6611.7570637.01349087.80365.601640.153295360.0049826011.668.1548995.03349087.80253.601893.753295360.0057516185.034.5528141.89349087.80145.672039.423295360.00721楼层最大位移与楼层层高之比:,满足位移要求。4.5.4刚重比和剪重比验算为了保证结构的稳定和安全,需分别按式和进行结构刚重比和剪重比验算。各层的刚重比和剪重比见表12。表12各层刚重比和剪重比层(m)(kN/m)(kN)(kN)(kN)53.63295361186329.6796.875753.82/7117.14166.690.13843.63295361186329.61274.5211765.48/15441.1276.830.08333.63295361186329.61640.1517777.14/23765.1049.920.06923.63295361186329.61893.7523788.80/32089.0836.970.05914.552826501296057.52039.4229973.83/40621.1029.20.050..
.注:一栏中,分子为第j层的重力荷载代表值,分母为第j层的重力荷载设计值,刚重比计算用重力荷载设计值,剪重比计算用重力荷载代表值。由表12可见,各层的刚重比均大于20,不必考虑重力二阶效应,各层的剪重比均大于0.016,满足剪重比要求。5内力计算5.1恒荷载标准值作用下框架的内力采用力学求解器计算,求得的内力图如图7到图9所示。5.2活荷载标准值作用下框架的内力采用力学求解器计算,求得的内力图如图10到图12所示。5.3风荷载标准值作用下框架的内力采用力学求解器计算,求得的内力图如图13到图15所示。..
.图7恒荷载作用下的M图(单位:kN·m)图8荷载作用下的V图(单位:kN)..
.图9恒荷载作用下的N图(单位:kN)图10活荷载作用下的M图(单位:kN·m)..
.图11活荷载作用下的V图(单位:kN)图12活荷载作用下的N图(单位:kN)..
.图13风荷载作用下的M图(单位:kN·m)图14风荷载作用下的V图(单位:kN)..
.图15风荷载作用下的N图(单位:kN)5.4水平地震作用下框架的内力柱端弯矩计算采用D值法,先分别计算各轴柱反弯点位置,计算结果见表13。表13各轴框架柱反弯点位置构件层h(m)yh(m)(1-y)h(m)框架柱A53.600.600.3000000.30001.0802.52043.600.600.3500000.35001.2602.34033.600.600.4500000.45001.6201.98023.600.600.50000-0.050.45001.6201.98014.550.760.6700-0.002200.66783.0381.512框架柱B53.601.280.3640000.36401.3102.29043.601.280.4140000.41401.4902.11033.601.280.4640000.46401.6701.93023.601.280.50000-0.01150.48851.7591.84114.551.620.5880-0.000800.58722.6721.878其中y=+++,、、、均由查表得出。框架各柱剪力由公式求得,具体计算过程见表14。根据反弯点高度,由公式,..
.可求得柱端弯矩,计算结果见表14。表14横向水平地震作用下框架柱剪力和柱端弯矩的计算构件层(kN)(kN)yh(m)(1-y)h(m)(kN·m)(kN·m)框架柱A5796.8732953692430.02815.831.0802.52039.8917.1041274.5232953692430.02829.231.2602.34068.4036.8331640.1532953692430.02839.481.6201.98078.1763.9621893.7532953692430.02846.601.6201.98078.1763.9612039.4228265091560.03257.823.0381.51287.42175.66框架柱B5796.87329536156730.04826.841.3102.29061.4635.1641274.52329536156730.04849.561.4902.110104.5773.8431640.15329536156730.04866.951.6701.930129.21111.8121893.75329536156730.04879.011.7591.841145.46138.9812039.42282650115450.04173.812.6721.878138.62197.22与中柱交接的梁,与边柱交接的梁由此得梁端弯矩,计算过程见表15、16。横向水平地震作用下得弯矩图如图16所示。结合平衡条件,可得到横向水平地震作用下的剪力图和轴力图,分别如图17、18所示。横向水平地震作用下框架梁剪力的计算过程见表17。表15横向水平地震作用下框架梁端弯矩的计算层50.60.680.46875 61.4635.1661.4628.81 0.53125 32.6540.60.680.46875 104.5773.84139.7365.50 0.53125 74.2330.60.680.46875 129.21111.81203.0595.18 0.53125 107.8720.60.680.46875 145.46138.98257.27120.60 0.53125 136.6710.60.680.46875 138.62197.22277.60130.13 0.53125 147.48..
.表16横向水平地震作用下框架梁端弯矩的计算层539.8917.1039.89468.4036.8385.50378.1763.96115.00278.1763.96142.13187.42175.66151.38表17横向水平地震作用下框架梁剪力的计算层框架梁AB框架梁BC539.8928.816.0011.4532.652.7024.19485.5065.506.0025.1774.232.7054.993115.0095.186.0035.03107.872.7079.902142.13120.606.0043.79136.672.70101.241151.38130.136.0046.92147.482.70109.24图16水平地震作用下的M图(单位:kN·m)..
.图17水平地震作用下的V图(单位:kN)图18水平地震作用下的N图(单位:kN)..
.5.5重力荷载代表值作用下框架的内力5.5.1均布重力荷载代表值计算屋面:框架梁上均布荷载+0.5雪荷载=18.84+0.54.401.80.8472=19.45kN/m框架梁上均布荷载+0.5活荷载=1.87+0.50=1.87kN/m楼面:框架梁上均布荷载+0.5活荷载=18.84+0.54.401.80.8472=19.45kN/m框架梁上均布荷载+0.5活荷载=1.87+0.50=1.87kN/m5.5.2作用于A柱集中重力荷载代表值计算屋面处:=恒荷载+0.5雪荷载=136.26kN标准层楼面处:=恒荷载+0.5活荷载=118.99+0.5×33.38=135.68kN基础顶面处:=49.58kN5.5.3作用于B柱集中重力荷载代表值计算屋面处:=恒荷载+0.5雪荷载=171.68kN标准层楼面处:=恒荷载+0.5活荷载=161.679+0.5×56.03=189.69kN..
.基础顶面处:=55.48kN框架在重力荷载代表值作用下受荷图如图19所示。5.5.4框架内力采用力学求解器计算,求的内力图如图20到图22所示。6内力组合由于梁控制截面的内力值应取自支座边缘处,为此,在进行组合前,应先计算各控制截面的(支座边缘处)内力值。柱上端控制截面在上层的梁底,柱下端控制截面在下层的梁端,按轴线计算简图算得的柱段内力值宜换算到控制截面处的值。梁控制截面的内力值为:,柱控制截面的内力值为:式中:——控制截面的弯矩标准值——控制截面的剪力标准值M——梁柱中线交点处的弯矩标准值V——与M相应的梁柱中线交点处的剪力标准值q——梁单位长度的均布荷载标准值b——梁支座宽度(即柱截面高度),柱支座宽度(即梁截面高度)6.1各种荷载作用下梁控制截面的内力6.1.1恒荷载作用下梁控制截面的内力,计算结果见表18。表18恒荷载作用下梁控制截面的内力层梁控制截面的弯矩梁控制截面的剪力5-40.10-21.96-14.20-14.2055.11-48.512.05-2.054-45.24-38.38-1.40-1.4054.78-52.262.05-2.053-43.75-36.17-3.92-3.9254.90-52.142.05-2.052-43.10-37.91-3.34-3.3454.46-52.582.05-2.051-39.70-38.45-4.91-4.9153.75-53.292.05-2.05..
.图19重力荷载代表值作用下框架的受荷图图20重力荷载代表值作用下的M图(单位:kN)注:1.图中集中力的单位为kN,均布力的单位为kN/m;2.图中数值均为标准值;..
.图21重力荷载代表值作用下的V图(单位:kN)图22重力荷载代表值作用下的N图(单位:kN)..
.6.1.2活荷载作用下梁控制截面的内力计算结果见表19。表19活荷载作用下梁控制截面的内力层梁控制截面的弯矩梁控制截面的剪力5-4.75-1.360.080.084.80-3.56004-13.83-9.86-1.77-1.7717.50-16.06003-14.00-10.33-1.46-1.4617.45-16.11002-13.63-10.80-1.45-1.4517.30-16.26001-12.23-10.97-2.14-2.1417.01-16.55006.1.3风荷载作用下梁控制截面的内力计算结果见表20。表20风荷载作用下梁控制截面的内力层梁控制截面的弯矩梁控制截面的剪力53.99-3.851.38-1.38-1.42-1.42-1.25-1.2548.91-8.345.53-5.53-3.14-3.14-5.02-5.02315.21-13.9910.72-10.72-5.31-5.31-9.75-9.75221.43-19.7516.40-16.40-7.49-7.49-14.91-14.91127.96-24.6720.62-20.62-9.57-9.57-18.75-18.756.1.4水平地震作用下梁控制截面的内力计算结果见表21。表21水平地震作用下梁控制截面的内力层梁控制截面的弯矩梁控制截面的剪力537.08-26.0026.60-26.60-11.45-11.45-24.19-24.19479.21-59.2160.48-60.48-25.17-25.17-54.99-54.993106.24-86.4287.90-87.90-35.03-35.03-79.90-79.902131.18-109.65111.36-111.36-43.79-43.79-101.24-101.241139.65-118.40120.17-120.17-46.92-46.92-109.24-109.24..
.6.1.5重力荷载代表值作用下梁控制截面的内力计算结果见表22。表22重力荷载代表值作用下梁控制截面的内力层梁控制截面的弯矩梁控制截面的剪力5-42.23-21.90-14.23-14.2356.97-49.572.05-2.054-52.26-43.68-1.89-1.8963.46-60.342.05-2.053-50.86-41.69-4.34-4.3463.57-60.232.05-2.052-50.03-43.66-3.76-3.7663.06-60.742.05-2.051-46.01-44.39-5.56-5.5662.19-61.612.05-2.056.2各种荷载作用下柱控制截面的内力6.2.1恒荷载作用下柱控制截面的内力计算结果见表23。表23恒荷载作用下柱控制截面的内力(单位:)层框架柱A框架柱B5-33.9521.5636.83-18.074-16.4118.726.50-10.203-19.2618.2812.23-11.382-18.5721.0512.60-14.891-13.976.659.32-4.226.2.2活荷载作用下柱控制截面的内力计算结果见表24。表24活荷载作用下柱控制截面的内力(单位:)层框架柱A框架柱B5-5.047.361.91-4.634-8.848.236.35-5.893-7.887.735.52-5.512-7.979.006.29-7.301-5.952.834.54-2.06..
.6.2.3风荷载作用下柱控制截面的内力计算结果见表25。表25风荷载作用下柱控制截面的内力(单位:)层框架柱A框架柱B53.96-0.755.24-2.7547.66-3.5210.99-7.92310.71-6.7216.63-13.41213.40-8.6222.47-20.38116.94-31.7624.84-35.326.2.4水平地震作用下柱控制截面的内力计算结果见表26。表26水平地震作用下柱控制截面的内力(单位:)层框架柱A框架柱B535.93-13.1454.75-28.45461.09-29.5292.18-61.45368.30-54.09112.47-95.07266.52-52.31125.71-119.23172.97-161.21120.17-178.776.2.5重力荷载代表值作用下柱控制截面的内力计算结果见表27。表27重力荷载代表值作用下柱控制截面的内力(单位:)层框架柱A框架柱B5-35.8024.4437.50-19.424-19.9021.968.29-11.873-22.3621.3213.81-12.972-21.6824.5314.47-17.101-16.267.7410.70-4.84..
.表28框架梁AB的基本组合表(非地震)层截面内力种类荷载类别内力组合S恒荷载活荷载左风右风1.2恒+1.4活+1.4×0.6左风1.2恒+1.4活+1.4×0.6右风1.2恒+1.4左风+1.4×0.7活1.2恒+1.4右风+1.4×0.7活1.35恒+1.4×0.7活+1.4×0.6左风1.35恒+1.4×0.7活+1.4×0.6右风MmaxMmin︱V︱max5左M-40.10-4.753.99-3.99-51.42-58.12-47.19-58.36-55.44-62.14-62.14V55.114.80-1.421.4271.6674.0468.8572.8277.9180.3080.30中M39.633.300.07-0.0752.2352.1250.8950.6956.7956.6856.79右M-21.96-1.36-3.853.85-31.49-25.02-33.07-22.29-34.21-27.74-34.21V-48.51-3.56-1.421.42-64.39-62.00-63.69-59.71-70.17-67.78-70.174左M-45.24-13.838.91-8.91-66.17-81.13-55.37-80.32-67.14-82.11-82.11V54.7817.50-3.143.1487.6092.8778.4987.2888.4793.7493.74中M31.2113.250.29-0.2956.2555.7650.8450.0355.3654.8756.25右M-38.38-9.86-8.348.34-66.87-52.85-67.39-44.04-68.48-54.47-68.48V-52.26-16.06-3.143.14-87.83-82.56-82.85-74.05-88.93-83.65-88.933左M-43.75-14.0015.21-15.21-59.32-84.88-44.93-87.51-60.01-85.56-87.51V54.9017.45-5.315.3185.8594.7775.5590.4286.7695.6895.68中M33.0112.850.61-0.6158.1157.0953.0651.3557.6756.6458.11右M-36.17-10.33-13.9913.99-69.62-46.11-73.11-33.94-70.70-47.20-73.11V-52.14-16.11-5.315.31-89.58-80.66-85.79-70.92-90.64-81.72-90.642左M-43.10-13.6321.43-21.43-52.80-88.80-35.08-95.08-53.54-89.54-95.08V54.4617.30-7.497.4983.2895.8671.8292.7984.1896.7796.77中M32.4712.790.84-0.8457.5856.1652.6750.3257.0755.6657.58右M-37.91-10.80-19.7519.75-77.20-44.02-83.73-28.43-78.35-45.17-83.73V-52.58-16.26-7.497.49-92.15-79.57-89.52-68.54-93.21-80.63-93.211左M-39.70-12.2327.96-27.96-41.28-88.25-20.48-98.77-42.09-89.07-98.77V53.7517.01-9.579.5780.2896.3567.7794.5781.1997.2797.27中M33.9013.521.65-1.6560.9958.2256.2451.6260.4057.6360.99右M-38.45-10.97-24.6724.67-82.22-40.78-91.43-22.35-83.38-41.94-91.43V-53.29-16.55-9.579.57-95.16-79.08-93.57-66.77-96.20-80.12-96.20..
.表29框架梁BC的基本组合表(非地震)层截面内力种类荷载类别内力组合S恒荷载活荷载左风右风1.2恒+1.4活+1.4×0.6左风1.2恒+1.4活+1.4×0.6右风1.2恒+1.4左风+1.4×0.7活1.2恒+1.4右风+1.4×0.7活1.35恒+1.4×0.7活+1.4×0.6左风1.35恒+1.4×0.7活+1.4×0.6右风MmaxMmin︱V︱max5左M-14.200.081.38-1.38-15.77-18.09-15.03-18.89-17.93-20.25 -20.25 V2.050.00-1.251.251.413.510.714.211.723.82 4.21中M-13.130.080.000.00-15.64-15.64-15.68-15.68-17.65-17.65-15.64 右M-14.200.08-1.381.38-18.09-15.77-18.89-15.03-20.25-17.93 -20.25 V-2.050.00-1.251.25-3.51-1.41-4.21-0.71-3.82-1.72 -4.214左M-1.40-1.775.53-5.530.49-8.804.33-11.161.02-8.27 -11.16 V2.050.00-5.025.02-1.766.68-4.579.49-1.456.98 9.49中M-0.32-1.770.000.00-2.86-2.86-2.12-2.12-2.17-2.17-2.12 右M-1.40-1.77-5.535.53-8.800.49-11.164.33-8.271.02 -11.16 V-2.050.00-5.025.02-6.681.76-9.494.57-6.981.45 -9.493左M-3.92-1.4610.72-10.722.26-15.758.87-21.142.28-15.73 -21.14 V2.050.00-9.759.75-5.7310.65-11.1916.11-5.4210.96 16.11中M-2.48-1.460.000.00-5.02-5.02-4.41-4.41-4.78-4.78-4.41 右M-3.92-1.46-10.7210.72-15.752.26-21.148.87-15.732.28 -21.14 V-2.050.00-9.759.75-10.655.73-16.1111.19-10.965.42 -16.112左M-3.34-1.4516.40-16.407.74-19.8117.53-28.397.85-19.71 -28.39 V2.050.00-14.9114.91-10.0614.98-18.4123.33-9.7615.29 23.33中M-2.27-1.450.000.00-4.75-4.75-4.15-4.15-4.49-4.49-4.15 右M-3.34-1.45-16.4016.40-19.817.74-28.3917.53-19.717.85 -28.39 V-2.050.00-14.9114.91-14.9810.06-23.3318.41-15.299.76 -23.331左M-4.91-2.1420.62-20.628.43-26.2120.88-36.868.60-26.05 -36.86 V2.050.00-18.7518.75-13.2918.21-23.7928.71-12.9818.52 28.71中M-3.83-2.140.000.00-7.59-7.59-6.69-6.69-7.27-7.27-6.69 右M-4.91-2.14-20.6220.62-26.218.43-36.8620.88-26.058.60 -36.86 V-2.050.00-18.7518.75-18.2113.29-28.7123.79-18.5212.98 -28.71..
.6.3框架梁内力组合6.3.1非地震作用下框架梁内力组合非地震作用下框架梁AB、BC的内力组合分别见表28、29。6.3.2地震作用下框架梁内力组合6.3.2.1梁端截面组合剪力设计值调整为了避免梁在弯曲破坏前发生剪切破坏,应按“强剪弱弯”的原则调整框架梁端部截面组合的剪力设计值:式中:、—分别为梁左右端逆时针或顺时针方向正截面组合的弯矩设计值—梁在重力荷载代表值作用下,按剪支梁分析的梁端截面剪力设计值—梁的净跨—梁的剪力增大系数,三级抗震取1.1框架梁AB、BC梁端剪力的计算过程分别见表30、31。表30经“强剪弱弯”调整后的框架梁AB的梁端剪力组合层截面5左-100.0811.905.5063.9286.32右-60.084.975.5063.9276.934左-165.6933.295.5074.28114.08右-129.3950.715.5074.28110.303左-199.1470.665.5074.28128.24右-162.3787.255.5074.28124.212左-230.5798.895.5074.28140.17右-194.94120.505.5074.28137.371左-236.76109.535.5074.28143.54右-207.19135.545.5074.28142.83表31经“强剪弱弯”调整后的框架梁BC的梁端剪力组合层截面..
.5左-51.6620.352.202.4738.47右-51.6620.352.202.4738.474左-80.8976.732.202.4781.28右-80.8976.732.202.4781.283左-119.48109.932.202.47117.17右-119.48109.932.202.47117.172左-149.28141.012.202.47147.61右-149.28141.012.202.47147.611左-162.89150.662.202.47159.25右-162.89150.662.202.47159.256.3.2.2框架梁内力组合地震作用下框架梁AB、BC的内力组合分别见表32、33。取跨中弯矩与支座正弯矩的较大值。6.4框架柱内力组合6.4.1非地震作用下框架柱内力组合非地震作用下框架柱A、B的内力组合分别见表34、35。6.4.2地震作用下框架柱内力组合为了使框架结构在地震作用下塑性铰首先在梁中出现,就必须满足“强柱弱梁”的原则,对柱端弯矩设计值予以调整:式中:—节点上下柱端截面顺时针或逆时针方向组合的弯矩设计值之和—节点左右梁端截面顺时针或逆时针方向组合的弯矩设计值之和—柱端弯矩增大系数,三级抗震取1.1框架顶层柱和轴压比小于0.15的柱弯矩不需要做调整,可取最不利内力组合的弯矩值作为设计值,三级框架结构的底层柱固定端截面组合的弯矩值,应乘以1.15的增大系数后作为设计值。轴压比为0.15的框架柱的轴力,故柱控制截面轴力大于时,需要按“强柱弱梁”对柱端弯矩设计值进行调整。为了防止柱在压弯破坏前发生剪切破坏,应按“强剪弱弯”的原则,对柱端剪力设计值予以调整:..
.表32框架梁AB的基本组合表(地震)层截面内力种类荷载类别内力组合SrRE×S左震右震重力荷载代表值1.2重+1.3左震1.0重+1.3左震1.2重+1.3右震1.0重+1.3右震MmaxMmin︱V︱maxMmaxMmin︱V︱max5左M37.08-37.08-43.23-8.004.97-100.08-91.43-100.08-75.06V-11.4511.4556.9753.4842.0983.2571.8686.3273.37中M5.54-5.5440.5755.8947.7741.4833.3755.8941.91右M-26.0026.00-21.90-60.08-55.707.5211.90-60.08-45.06V-11.4511.45-49.57-74.37-64.46-44.60-34.69-76.93-65.394左M79.21-79.21-52.2640.2650.71-165.69-155.23-165.69-124.27V-25.1725.1763.4643.4330.74108.8796.18114.0896.97中M10.00-10.0036.4556.7449.4530.7423.4556.7442.56右M-59.2159.21-43.68-129.39-120.6524.5633.29-129.39-97.04V-25.1725.17-60.34-105.13-93.06-39.69-27.62-110.30-93.763左M106.24-106.24-50.8677.0887.25-199.14-188.97-199.14-149.36V-35.0335.0363.5730.7518.03121.82109.11128.24109.01中M9.91-9.9138.1458.6551.0232.8925.2687.2565.44右M-86.4286.42-41.69-162.37-154.0462.3270.66-162.37-121.78V-35.0335.03-60.23-117.82-105.77-26.74-14.69-124.21-105.582左M131.18-131.18-50.03110.50120.50-230.57-220.56-230.57-172.93V-43.7943.7963.0618.756.13132.60119.99140.17119.15中M10.77-10.7737.5759.0951.5731.0823.57120.5090.38右M-109.65109.65-43.66-194.94-186.2190.1598.89-194.94-146.21V-43.7943.79-60.74-129.82-117.67-15.96-3.81-137.37-116.771左M139.65-139.65-46.01126.33135.54-236.76-227.56-236.76-177.57V-46.9246.9262.1913.631.19135.62123.19143.54122.01中M10.63-10.6339.2260.8853.0433.2525.40135.54101.66右M-118.40118.40-44.39-207.19-198.31100.65109.53-207.19-155.39V-46.9246.92-61.61-134.93-122.61-12.94-0.61-142.83-121.40..
.表33框架梁BC的基本组合表(地震)层截面内力种类荷载类别内力组合SrRE×S左震右震重力荷载代表值1.2重+1.3左震1.0重+1.3左震1.2重+1.3右震1.0重+1.3右震MmaxMmin︱V︱maxMmaxMmin︱V︱max5左M26.60-26.60-14.2317.5020.35-51.66-48.81 -51.66 -38.74 V-24.1924.192.05-28.99-29.4033.9133.50 38.47 32.70中M0.000.00-13.16-15.79-13.16-15.79-13.1620.35 15.26 右M-26.6026.60-14.23-51.66-48.8117.5020.35 -51.66 -38.74 V-24.1924.19-2.05-33.91-33.5028.9929.40 -38.47 -32.704左M60.48-60.48-1.8976.3676.73-80.89-80.51 -80.89 -60.67 V-54.9954.992.05-69.03-69.4473.9573.54 81.28 69.09中M0.000.00-0.82-0.98-0.82-0.98-0.8276.73 57.55 右M-60.4860.48-1.89-80.89-80.5176.3676.73 -80.89 -60.67 V-54.9954.99-2.05-73.95-73.5469.0369.44 -81.28 -69.093左M87.90-87.90-4.34109.06109.93-119.48-118.61 -119.48 -89.61 V-79.9079.902.05-101.41-101.82106.33105.92 117.17 99.60中M0.000.00-3.26-3.91-3.26-3.91-3.26109.93 82.45 右M-87.9087.90-4.34-119.48-118.61109.06109.93 -119.48 -89.61 V-79.9079.90-2.05-106.33-105.92101.41101.82 -117.17 -99.602左M111.36-111.36-3.76140.26141.01-149.28-148.53 -149.28 -111.96 V-101.24101.242.05-129.15-129.56134.07133.66 147.61 125.47中M0.000.00-2.69-3.23-2.69-3.23-2.69141.01 105.76 右M-111.36111.36-3.76-149.28-148.53140.26141.01 -149.28 -111.96 V-101.24101.24-2.05-134.07-133.66129.15129.56 -147.61 -125.471左M120.17-120.17-5.56149.55150.66-162.89-161.78 -162.89 -122.17 V-109.24109.242.05-139.55-139.96144.47144.06 159.25 135.36中M0.000.00-4.49-5.39-4.49-5.39-4.49150.66 113.00 右M-120.17120.17-5.56-162.89-161.78149.55150.66 -162.89 -122.17 V-109.24109.24-2.05-144.47-144.06139.55139.96 -159.25 -135.36..
.表34框架柱A的基本组合表(非地震)层截面内力种类荷载类别内力组合S恒荷载活荷载左风右风1.2恒+1.4活+1.4×0.6左风1.2恒+1.4活+1.4×0.6右风1.2恒+1.4左风+1.4×0.7活1.2恒+1.4右风+1.4×0.7活1.35恒+1.4×0.7活+1.4×0.6左风1.35恒+1.4×0.7活+1.4×0.6右风Nmax及相应的M,VNmin及相应的M,V︱M︱max及相应的N,V5上M-33.95-5.043.96-3.96-44.47-51.12-40.14-51.22-47.45-54.10-54.10-40.14-54.10N-192.74-13.491.42-1.42-248.98-251.37-242.52-246.50-272.23-274.61-274.61-242.52-274.61下M21.567.36-0.750.7535.5536.8132.0334.1335.6936.9536.9532.0336.95N-216.32-13.491.42-1.42-277.28-279.66-270.82-274.79-304.06-306.45-306.45-270.82-306.45V-17.91-4.001.52-1.52-25.82-28.37-23.28-27.54-26.82-29.38-29.38-23.28-29.384上M-16.41-8.847.66-7.66-25.63-38.50-17.63-39.08-24.38-37.25-37.25-17.63-37.25N-394.95-65.894.56-4.56-562.36-570.02-532.13-544.90-593.92-601.59-601.59-532.13-601.59下M18.728.23-3.523.5231.0336.9425.6035.4630.3836.2936.2925.6036.94N-418.53-65.894.56-4.56-590.65-598.31-560.42-573.19-625.76-633.42-633.42-560.42-598.31V-11.33-5.503.60-3.60-18.27-24.32-13.95-24.03-17.66-23.71-23.71-13.95-24.323上M-19.26-7.8810.71-10.71-25.15-43.14-15.84-45.83-24.73-42.72-42.72-15.84-45.83N-597.28-118.239.87-9.87-873.97-890.55-818.78-846.42-913.90-930.48-930.48-818.78-846.42下M18.287.73-6.726.7227.1138.4020.1038.9226.6137.9037.9020.1038.92N-620.86-118.239.87-9.87-902.26-918.84-847.08-874.72-945.74-962.32-962.32-847.08-874.72V-12.10-5.045.63-5.63-16.85-26.31-11.58-27.34-16.55-26.00-26.00-11.58-27.342上M-18.57-7.9713.40-13.40-22.19-44.70-11.33-48.85-21.62-44.14-44.14-11.33-48.85N-799.18-170.4317.36-17.36-1183.04-1212.20-1101.73-1150.34-1231.33-1260.50-1260.50-1101.73-1150.34下M21.059.00-8.628.6230.6245.1022.0146.1530.0044.4844.4822.0146.15N-822.76-170.4317.36-17.36-1211.33-1240.50-1130.03-1178.64-1263.17-1292.33-1292.33-1130.03-1178.64V-12.78-5.477.11-7.11-17.02-28.97-10.74-30.65-16.64-28.59-28.59-10.74-30.651上M-13.97-5.9516.94-16.94-10.86-39.321.12-46.31-10.46-38.92-38.921.12-46.31N-1000.35-222.3426.93-26.93-1489.07-1534.32-1380.61-1456.02-1545.74-1590.99-1590.99-1380.61-1456.02下M6.652.83-31.7631.76-14.7438.62-33.7155.22-14.9338.4338.43-33.7155.22N-1030.15-222.3426.93-26.93-1524.83-1570.08-1416.37-1491.78-1585.97-1631.22-1631.22-1416.37-1491.78V-5.09-2.1712.03-12.030.96-19.258.61-25.081.11-19.10-19.108.61-25.08..
.表35框架柱B的基本组合表(非地震)层截面内力种类荷载类别内力组合SrRE×S恒荷载活荷载左风右风1.2恒+1.4活+1.4×0.6左风1.2恒+1.4活+1.4×0.6右风1.2恒+1.4左风+1.4×0.7活1.2恒+1.4右风+1.4×0.7活1.35恒+1.4×0.7活+1.4×0.6左风1.35恒+1.4×0.7活+1.4×0.6右风Nmax及相应的M,VNmin及相应的M,V︱M︱max及相应的N,V5上M36.831.915.24-5.2451.2742.4753.4038.7355.9947.1955.9938.7355.99N-222.28-16.81-0.170.17-290.41-290.13-283.45-282.97-316.69-316.41-316.69-282.97-316.69下M-18.07-4.63-2.752.75-30.48-25.86-30.07-22.37-31.24-26.62-31.24-22.37-31.24N-245.86-16.81-0.170.17-318.71-318.42-311.74-311.27-348.53-348.24-348.53-311.27-348.53V17.702.102.58-2.5826.3522.0126.9119.6928.1223.7928.1219.6928.124上M6.506.3510.99-10.9925.927.4629.41-1.3624.235.775.7729.4129.41N-467.17-90.421.71-1.71-685.76-688.63-646.82-651.61-717.85-720.73-720.73-646.82-646.82下M-10.20-5.89-7.927.92-27.14-13.83-29.10-6.92-26.20-12.89-12.89-29.10-29.10N-490.75-90.421.71-1.71-714.05-716.92-675.12-679.91-749.69-752.56-752.56-675.12-675.12V5.383.946.10-6.1017.106.8518.861.7816.256.006.0018.8618.863上M12.235.5216.63-16.6336.378.4343.37-3.2035.897.957.9543.3743.37N-711.94-164.096.15-6.15-1078.89-1089.22-1006.53-1023.75-1116.76-1127.09-1127.09-1006.53-1006.53下M-11.38-5.51-13.4113.41-32.63-10.11-37.83-0.28-32.03-9.50-9.50-37.83-37.83N-735.52-164.096.15-6.15-1107.18-1117.52-1034.82-1052.04-1148.59-1158.93-1158.93-1034.82-1034.82V7.613.569.69-9.6922.265.9826.19-0.9521.905.625.6226.1926.192上M12.606.2922.47-22.4742.805.0552.74-10.1742.054.304.3052.7452.74N-957.15-237.9013.57-13.57-1470.24-1493.04-1362.72-1400.72-1513.90-1536.69-1536.69-1362.72-1362.72下M-14.89-7.30-20.3820.38-45.21-10.97-53.553.51-44.37-10.14-10.14-53.55-53.55N-980.73-237.9013.57-13.57-1498.54-1521.33-1391.02-1429.02-1545.73-1568.53-1568.53-1391.02-1391.02V8.864.3913.82-13.8228.395.1734.28-4.4127.874.654.6534.2834.281上M9.324.5424.84-24.8438.41-3.3350.41-19.1437.90-3.83-3.8350.4150.41N-1203.08-312.0022.75-22.75-1861.39-1899.61-1717.61-1781.31-1910.81-1949.03-1949.03-1717.61-1717.61下M-4.22-2.06-35.3235.32-37.6221.72-56.5342.37-37.3821.9521.95-56.53-56.53N-1232.88-312.0022.75-22.75-1897.15-1935.37-1753.37-1817.07-1951.04-1989.26-1989.26-1753.37-1753.37V3.341.6314.85-14.8518.76-6.1826.40-15.1818.58-6.37-6.3726.4026.40..
.式中:、—分别为柱上、下端顺时针或逆时针方向截面组合的弯矩设计值(应取调整增大后的设计值),且取顺时针方向之和与逆时针方向之和两者的较大值—柱的净高—柱端剪力增大系数,三级抗震取1.16.4.2.1框架柱A柱端截面组合弯矩设计值和组合剪力设计值的调整(1)对“及相应的”组合弯矩设计值和组合剪力设计值的调整取第4层A柱进行“强柱弱梁”、“强剪弱弯”的调整。此时,地震作用为右震。右震时,第4层A柱节点处上柱截面的弯矩为,节点处梁端组合弯矩设计值,如图23所示,根据得节点处下柱截面组合弯矩设计值为。右震时,第3层A柱节点处上柱截面的弯矩分配系数为,节点处下柱截面的弯矩分配系数为0.641,节点处梁端组合弯矩设计值,如图24所示,根据可得:节点处上柱截面组合弯矩设计值为节点处下柱截面组合弯矩设计值为第4层柱端组合剪力设计值为,如图25所示。图23右震时4层A柱节图24右震时3层A柱节图254层A柱柱端点处梁、柱组合弯矩设计值点处梁、柱组合弯矩设计值组合弯矩和剪力设计值其余柱端截面组合弯矩设计值的调整见表36,组合剪力设计值的调整见表37。底层柱固定端截面组合弯矩设计值为。..
.表36框架柱A组合弯矩设计值调整节点节点处上柱截面的弯矩分配系数节点处下柱截面的弯矩分配系数节点处梁端组合弯矩设计值节点处上柱截面组合弯矩设计值节点处下柱截面组合弯矩设计值第2层A柱0.540-230.57116.67136.96第1层A柱0.540-236.76119.80140.64表37框架柱A组合剪力设计值调整层3-140.41116.673.1091.222-136.96119.803.1091.111-140.64251.694.05106.56(2)对“及相应的”组合弯矩设计值和组合剪力设计值的调整此时,地震作用为左震。柱端截面组合弯矩设计值的调整见表38,组合剪力设计值的调整见表39。底层柱固定端截面组合弯矩设计值为。表38框架柱A组合弯矩设计值调整节点节点处上柱截面的弯矩分配系数节点处下柱截面的弯矩分配系数节点处梁端组合弯矩设计值节点处上柱截面组合弯矩设计值节点处下柱截面组合弯矩设计值第3层A柱87.2516.4279.56第2层A柱0.569120.5057.1375.42第1层A柱0.644135.5453.0896.02..
.表39框架柱A组合剪力设计值调整层379.56-57.133.1048.50275.42-58.033.1045.60196.02-232.104.0589.126.4.2.2框架柱B柱端截面组合弯矩设计值和组合剪力设计值的调整(1)对“及相应的”组合弯矩设计值和组合剪力设计值的调整此时,地震作用为右震。柱端截面组合弯矩设计值的调整见表40,组合剪力设计值的调整见表41。表40框架柱A组合弯矩设计值调整节点节点处上柱截面的弯矩分配系数节点处下柱截面的弯矩分配系数节点处梁端组合弯矩设计值节点处上柱截面组合弯矩设计值节点处下柱截面组合弯矩设计值第4层A柱33.29-80.8913.68111.92第3层A柱0.66470.66-119.4870.30138.85第2层A柱0.57598.89-149.28116.06156.92第1层A柱0.515109.53-162.89145.03154.63底层柱固定端截面组合弯矩设计值为。表41框架柱A组合剪力设计值调整层4-111.9270.303.164.66..
.3-138.85116.063.190.452-156.92145.033.197.401-154.63288.174.05120.27(2)对“及相应的”组合弯矩设计值和组合剪力设计值的调整此时,地震作用为左震。柱端截面组合弯矩设计值的调整见表42,组合剪力设计值的调整见表43。表42框架柱A组合弯矩设计值调整节点节点处上柱截面的弯矩分配系数节点处下柱截面的弯矩分配系数节点处梁端组合弯矩设计值节点处上柱截面组合弯矩设计值节点处下柱截面组合弯矩设计值第3层A柱-162.37109.9391.76207.77第2层A柱0.566-194.94141.01160.49209.06第1层A柱0.492-207.19150.66199.82193.81底层柱固定端截面组合弯矩设计值为。表43框架柱A组合剪力设计值调整层3207.77-160.493.10130.672209.06-199.823.10145.091193.81-300.414.05122.036.4.2.3框架柱内力组合地震作用下框架柱A、B的内力组合分别见表44、45。7框架梁截面设计7.1框架梁正截面承载力计算三级抗震时梁纵向受拉钢筋的最小配筋率为:..
.支座:跨中:..
.表44框架柱A的基本组合表(地震)层截面内力种类荷载类别内力组合SrRE×S左震右震重力荷载代表值1.2重+1.3左震1.0重+1.3左震1.2重+1.3右震1.0重+1.3右震Nmax及相应的M,VNmin及相应的M,V︱M︱max及相应的N,VNmax及相应的M,VNmin及相应的M,V︱M︱max及相应的N,V5上M35.93-35.93-35.803.7510.91-89.67-82.51-89.6710.91-89.67-67.258.18-67.25N11.45-11.45-198.07-222.80-183.19-252.57-212.96-252.57-183.19-252.57-189.43-137.39-189.43下M-13.1413.1424.4412.257.3646.4141.5246.417.3646.4134.815.5234.81N11.45-11.45-221.65-251.10-206.77-280.87-236.54-280.87-206.77-280.87-210.65-155.08-210.65V15.83-15.83-19.43-2.741.15-43.90-40.01-43.901.15-43.90-37.320.98-37.324上M61.09-61.09-19.9055.5459.52-103.30-99.32-135.8559.52-103.30-77.4844.64-77.48N36.62-36.62-426.42-464.10-378.81-559.31-474.03-559.31-378.81-559.31-447.45-284.11-447.45下M-29.5229.5221.96-12.02-16.4264.7360.3478.64-16.4278.6458.98-12.3258.98N36.62-36.62-450.00-492.39-402.39-587.61-497.61-587.61-402.39-587.61-470.09-301.79-470.09V29.23-29.23-13.5021.8024.50-54.20-51.50-76.1124.50-76.11-64.6920.83-64.693上M68.30-68.30-22.3661.9666.43-115.62-111.15-140.4179.56-140.41-105.3159.67-105.31N71.65-71.65-654.88-692.71-561.74-879.00-748.03-879.00-561.74-879.00-703.20-449.39-703.20下M-54.0954.0921.32-44.73-49.0095.9091.64116.67-57.13116.6787.50-42.8587.50N71.65-71.65-678.46-721.01-585.32-907.30-771.61-907.30-585.32-907.30-725.84-468.26-725.84V39.48-39.48-14.0934.4237.23-68.23-65.41-91.2248.50-91.22-77.5441.23-77.542上M66.52-66.52-21.6860.4664.80-112.49-108.16-136.9675.42-136.96-102.7256.57-102.72N115.44-115.44-882.83-909.32-732.76-1209.47-1032.90-1209.47-732.76-1209.47-967.58-586.21-967.58下M-52.3152.3124.53-38.57-43.4797.4492.53119.80-53.08119.8089.85-39.8189.85N115.44-115.44-906.41-937.62-756.34-1237.76-1056.48-1237.76-756.34-1237.76-990.21-605.07-990.21V46.60-46.60-14.9042.7045.68-78.46-75.48-91.1145.60-91.11-77.4438.76-77.441上M72.97-72.97-16.2675.3578.60-114.37-111.12-140.6496.02-140.64-105.4872.02-105.48N162.36-162.36-1109.91-1120.82-898.84-1542.96-1320.98-1542.96-898.84-1542.96-1234.37-719.07-1234.37下M-161.21161.217.74-200.29-201.83218.86217.31251.69-232.10251.69188.77-174.08188.77N162.36-162.36-1139.71-1156.58-928.64-1578.72-1350.78-1578.72-928.64-1578.72-1262.98-742.91-1262.98V57.82-57.82-5.9368.0569.24-82.28-81.10-106.5689.12-106.56-90.5875.75-90.58..
.表45框架柱B的基本组合表(地震)层截面内力种类荷载类别内力组合SrRE×S左震右震重力荷载代表值1.2重+1.3左震1.0重+1.3左震1.2重+1.3右震1.0重+1.3右震Nmax及相应的M,VNmin及相应的M,V︱M︱max及相应的N,VNmax及相应的M,VNmin及相应的M,V︱M︱max及相应的N,V5上M54.75-54.7537.50116.18108.68-26.18-33.68-26.18108.68108.68-19.6481.5181.51N12.74-12.74-228.61-257.77-212.05-290.89-245.17-290.89-212.05-212.05-218.17-159.04-159.04下M-28.4528.45-19.42-60.29-56.4113.6817.5713.68-56.41-56.4110.26-42.31-42.31N12.74-12.74-252.19-286.07-235.63-319.19-268.75-319.19-235.63-235.63-239.39-176.72-176.72V26.84-26.8418.3656.9253.25-12.86-16.53-12.8653.2553.25-10.9345.2645.264上M92.18-92.188.29129.78128.12-109.89-111.54-111.92128.12128.12-83.9496.0996.09N42.56-42.56-510.38-557.13-455.05-667.78-565.71-667.78-455.05-455.05-534.22-314.29-314.29下M-61.4561.45-11.87-94.13-91.7665.6468.0270.30-91.76-91.7652.73-68.82-68.82N42.56-42.56-533.96-585.42-478.63-696.08-589.29-696.08-478.63-478.63-556.86-358.97-358.97V49.56-49.566.5172.2470.94-56.62-57.92-64.6670.9470.94-54.9660.3060.303上M112.47-112.4713.81162.78160.02-129.64-132.40-138.85207.77207.77-104.14155.83155.83N87.43-87.43-792.03-836.78-678.37-1064.10-905.69-1064.10-678.37-678.37-851.28-542.70-542.70下M-95.0795.07-12.97-139.16-136.56108.03110.62116.06-160.49-160.4987.05-120.37-120.37N87.43-87.43-815.61-865.07-701.95-1092.39-929.27-1092.39-701.95-701.95-873.91-561.56-561.56V66.95-66.958.6497.4095.68-76.67-78.40-90.45130.67130.67-76.88110.07110.072上M125.71-125.7114.47180.79177.89-146.06-148.95-156.92209.06209.06-117.69159.13159.13N144.88-144.88-1074.20-1100.70-885.86-1477.38-1262.54-1477.38-885.86-885.86-1181.90-708.69-708.69下M-119.23119.23-17.10-175.52-172.10134.48137.90145.03-199.82-199.82108.77-156.80-156.80N144.88-144.88-1097.78-1128.99-909.44-1505.68-1286.12-1505.68-909.44-909.44-1204.54-727.55-727.55V79.01-79.0110.18114.93112.89-90.50-92.53-97.40145.09145.09-82.79123.32123.321上M120.17-120.1710.70169.06166.92-143.38-145.52-154.63193.81193.81-115.97145.36145.36N207.20-207.20-1357.23-1359.32-1087.87-1898.04-1626.59-1898.04-1087.87-1087.87-1518.43-870.30-870.30下M-197.22197.22-4.84-262.19-261.23250.58251.55288.17-300.41-300.41216.13-225.31-225.31N207.20-207.20-1387.04-1395.09-1117.68-1933.81-1656.40-1933.81-1117.68-1117.68-1547.05-894.14-894.14V73.81-73.813.84100.5699.79-91.35-92.11-120.27122.03122.03-102.23103.73103.73..
.当支座截面的正弯矩大于跨中截面的正弯矩时,取支座截面的正弯矩进行正截面承载力计算。计算过程见表46。表46框架梁正截面承载力计算层计算公式框架梁AB框架梁BC左截面跨中截面/左截面右截面左截面左截面575.0656.7945.0638.7415.264654654653653650.0970.0730.0580.0810.0320.102<0.350.076<0.550.060<0.350.085<0.350.033<0.35567.1423.3353.3369.6141.7327.5268.8327.5262.0262.0实配钢筋316314216216214实配钢筋面积6034624024023084124.2756.2597.0460.6757.554654654653653650.1610.0730.1260.1270.1210.176<0.350.076<0.550.135<0.350.137<0.350.129<0.35976.9419.1745.8594.7561.9327.5268.8327.5262.0262.0实配钢筋418314318318316实配钢筋面积10184627637636033149.3665.44121.7889.6182.454654654653653650.1930.0850.1580.1880.1730.217<0.350.089<0.350.172<0.350.210<0.350.191<0.351200.8490.8955.3914.5832.7327.5327.5327.5262.0262.0实配钢筋420316220220320..
.+216+216实配钢筋面积1257603103010309422172.9390.38146.21111.96105.764654654653653650.2240.1170.1890.2350.2220.257<0.350.125<0.350.212<0.350.272<0.350.254<0.351422.1691.01172.11183.51106.6327.5327.5327.5262.0262.0实配钢筋422318222+218222+218420实配钢筋面积15217631269126912571177.57101.66155.39122.17113.004654654653653650.2300.1320.2010.2570.2370.265<0.350.142<0.350.227<0.350.302<0.350.275<0.351467.1784.21256.31314.31196.5327.5327.5327.5262.0262.0实配钢筋422320222+220222+220420实配钢筋面积15219421388138812577.2框架梁斜截面承载力计算因为跨高比,,需满足。加密区箍筋最大间距,箍筋加密区长度取。最小配箍率计算过程见表47。..
.表47框架梁斜截面承载力计算层计算公式框架梁AB框架梁BC左截面右截面左截面573.3765.3932.70465465365332.48>332.48>260.98>69.8269.82>54.80>0.03<0<0箍筋选取2828281011011013472.5构造要求加密区箍筋最大间距125125100加密区实配箍筋8@1008@1008@100箍筋加密区长度750750600非加密区实配箍筋8@2008@2008@2000.202﹪0.202﹪0.202﹪0.177﹪0.177﹪0.177﹪496.9793.7669.09465465365332.48>332.48>260.98>69.8269.8254.800.220.200.15箍筋选取282828101101101454.1515.0677.4加密区箍筋最大间距125125100加密区实配箍筋8@1008@1008@100箍筋加密区长度750750600非加密区实配箍筋8@2008@2008@2000.202﹪0.202﹪0.202﹪0.177﹪0.177﹪0.177﹪..
.3109.01105.5899.60465465365332.48>332.48>260.98>69.8269.8254.800.320.290.47箍筋选取282828101101101314.6344.7216.0加密区箍筋最大间距125125100加密区实配箍筋8@1008@1008@100箍筋加密区长度750750600非加密区实配箍筋8@2008@2008@2000.202﹪0.202﹪0.202﹪0.177﹪0.177﹪0.177﹪2119.15116.77125.47465465365332.48>332.48>260.98>69.8269.8254.800.400.380.74箍筋选取282828101101101249.9262.6136.9加密区箍筋最大间距125125100加密区实配箍筋8@1008@1008@100箍筋加密区长度750750600非加密区实配箍筋8@2008@2008@1000.202﹪0.202﹪0.404﹪0.177﹪0.177﹪0.177﹪1122.01121.40135.36465465365332.48>332.48>260.98>..
.69.8269.8254.800.430.420.84箍筋选取282828101101101236.2239.0120.1加密区箍筋最大间距125125100加密区实配箍筋8@1008@1008@100箍筋加密区长度750750600非加密区实配箍筋8@2008@2008@1000.202﹪0.202﹪0.404﹪0.177﹪0.177﹪0.177﹪非抗震作用下取顶层框架梁AB左截面做斜截面承载力计算。,,箍筋按构造要求配置。对比抗震与非抗震作用下箍筋的配置,应选抗震作用下的组合剪力设计值进行框架梁斜截面承载力计算。7.3框架梁裂缝宽度验算以验算顶层的裂缝宽度为例。计算过程见表48。表48顶层框架梁裂缝宽度计算 框架梁AB框架梁BC左截面跨中截面右截面左截面跨中截面47.2442.9726.7615.6413.21 440465440340365 603462402402226204.65229.91173.90131.53184.076250062500625005000050000 0.010.010.010.010.01..
. 0.4620.5320.3490.1070.390 16141616120.1740.2050.1120.0260.108其中:,,若<0.2,取0.2,若<0.01,取0.01,为非地震作用下的组合弯矩标准值。,裂缝宽度满足要求。8框架柱截面设计8.1框架柱正截面承载力计算8.1.1轴压比验算底层B柱下截面轴力最大,轴压比,满足轴压比要求。8.1.2正截面承载力计算采取对称配筋,,当水平荷载产生的弯矩设计值>75%,柱的计算长度取下列二式中的较小值:,式中:、—柱的上端、下端节点处交汇的各柱线刚度之和与交汇的各梁线刚度的比值;—比值、中的较小值;H—柱的高度,对底层柱为基础顶面到一层楼盖顶面的高度;对其余各层柱为上、下两层楼盖顶面之间的距离。进行底层框架柱A、B的正截面承载力计算。底层A柱,水平地震作用产生的弯矩设计值占总弯矩设计值的,,,取..
.底层B柱,水平地震作用产生的弯矩设计值占总弯矩设计值的,,,取当时,为大偏心受压,此时应选大,小的组合进行正截面承载力计算;当时,为小偏心受压,此时应选大,大的组合进行正截面承载力计算。底层框架柱A、B正截面承载力计算过程见表49。表49底层框架柱正截面承载力计算计算公式框架柱A框架柱B72.02174.08188.77145.36225.3121.95719.07742.911262.98870.3894.141989.261808.95>,大偏压1808.95<,小偏压100.16234.32149.46167.02251.9911.03max﹛h/30,20﹜=20120.16254.32169.46187.02271.9931.036.585.502.492.411.422.052.000.9013.16<111.00<111.471.221.341.301.212.6580100.57103.90176.64121.72125.05387.06521.23436.37453.93538.89292.17..
.<0667.31648.41378.421003.54<00.35%×500×500=875实配钢筋420实配钢筋面积1257底层B柱,为小偏压,底层框架柱A纵向受力钢筋按构造要求配置,2、3、4层框架柱A纵向受力钢筋均按底层配置,框架柱B需要进行第2层的正截面承载力计算。第2层B柱,水平地震作用产生的弯矩设计值占总弯矩设计值的,,,取第2层框架柱B的正截面承载力计算过程见表50。表50第2层框架柱B正截面承载力计算 计算公式框架柱B159.13..
.708.691808.95224.54max﹛h/30,20﹜=20244.545.202.5210.4011.2340.0099.12511.44568.10875实配钢筋420实配钢筋面积1257从表50中可以看出,第2层框架柱B纵向受力钢筋按构造要求配置。3、4层框架柱B纵向受力钢筋按第2层配置。进行顶层框架柱A、B的正截面承载力计算。顶层A柱,水平地震作用产生的弯矩设计值占总弯矩设计值的,。顶层B柱,水平地震作用产生的弯矩设计值占总弯矩设计值的,。..
.顶层框架柱A、B正截面承载力计算过程见表51。表51顶层框架柱A、B正截面承载力计算计算公式框架柱A框架柱B8.1867.2581.51137.39189.43159.041808.95>,大偏压59.54355.01512.51max﹛h/30,20﹜=2079.54375.01532.514.5013.019.4411.249.009.009.0011.721.151.118019.2226.4922.24<0221.92379.42<0333.63478.910.35%×500×500=875实配钢筋420实配钢筋面积12578.2框架柱斜截面承载力计算底层剪力最大,以最大剪力对应的轴力作为设计值。底层框架柱A、B斜截面承载力计算过程见表52。表52底层框架柱A、B斜截面承载力计算计算公式框架柱A框架柱B..
.90.58103.731262.98894.14657.8>657.8>1072.5<,取1072.5>,取4.40>3,取146.40>136.41>按构造要求配筋按构造要求配筋采用48复合箍筋。轴压比,查表得,柱箍筋加密区的体积配箍率为:,加密区箍筋间距还应满足构造要求,,故加密区箍筋选48@100。底层柱的上端和其它各层柱的两端,箍筋加密区的范围取,取500,底层柱柱根取。非加密区箍筋选48@200。,满足要求。以上四层柱箍筋配置同底层。8.3裂缝宽度验算顶层柱最不利内力组合中,因此需验算裂缝宽度,公式如下:其中,,,,..
.,由于影响最大,因此取顶层框架柱B验算(最大)满足要求。9次梁截面设计9.1荷载计算屋面梁恒荷载设计值g=1.218.84=22.61kN/m活荷载设计值q=1.41.52=2.13kN/m楼面梁恒荷载设计值g=1.219.46=23.35kN/m活荷载设计值q=1.46.10=8.54kN/m9.2内力计算为简便计算,计算跨度取支座中心间距离作为计算跨度,取,计算简图分别如图26、27所示。图26屋面次梁计算简图图27楼面次梁计算简图..
.屋面梁:跨中弯矩支座剪力楼面梁:跨中弯矩支座剪力9.3次梁截面承载力计算9.3.1次梁正截面承载力计算,计算过程见表53。表53连系梁正截面承载力计算截面屋面梁跨中楼面梁跨中89.06114.804654650.1150.1490.1230.162680.2895.3268.1实配钢筋318320实配钢筋面积7639429.3.2次梁斜截面承载力计算,计算过程见表54。表54连系梁斜截面承载力计算截面屋面梁支座楼面梁支座72.4495.67415.59>116.37>..
.按构造要求配筋,选用28@200的箍筋。,满足要求。10板截面设计板的布置图如图28所示:图28板的布置图板厚为120mm。B1按双向板计算B2按单向板计算10.1B1计算10.1.1荷载计算WB1恒荷载设计值g=1.25.35=6.42kN/m2活荷载设计值q=1.40.5=0.70kN/m2LB1恒荷载设计值g=1.23.85=4.62kN/m2活荷载设计值q=1.42.0=2.80kN/m210.1.2内力计算按弹性理论计算。取1m宽板带作为计算单元。在求各区格板跨内正弯矩时,按恒荷载均布及活荷载棋盘式布置计算。WB1荷载g=g+q/2=6.42+0.70/2=6.77kN/m2..
.q=q/2=0.70/2=0.35kN/m2LB1荷载g=g+q/2=4.62+2.80/2=6.02kN/m2q=q/2=2.80/2=1.40kN/m2在求各中间支座最大负弯矩(绝对值)时,按恒荷载及活荷载均满布各区格板计算。屋面板荷载p=g+q=4.62+0.70=7.12kN/m2楼面板荷载p=g+q=4.62+2.80=7.42kN/m2屋面板和楼面板计算简图及计算结果见表55。表55B1弯矩计算板带WB1LB13.6/6.0=0.60跨内计算简图+跨内支座计算简图10.1.3截面承载力计算,计算过程见表56。表56B1截面承载力计算截面WB1LB1跨中支座跨中支座..
.方向方向方向方向方向方向方向方向3.741.497.325.274.351.034.561.91000100901009010090100900.0260.0130.0510.0450.030.0090.0320.0160.0270.0130.0530.0470.0310.0090.0320.017180.579.3358.0285.5210.454.7220.7101.4实配钢筋10@200实配钢筋面积39310.2B2计算10.2.1荷载计算荷载同B1荷载。10.2.2内力计算取1m宽板带作为计算单元,计算简图分别如图29、30所示。图29WB2计算简图图30LB2计算简图屋面板跨中弯矩楼面板跨中弯矩10.2.3截面承载力计算,计算过程见表57。表57B2跨中配筋计算截面WB2LB2跨中跨中..
.5.195.2810001000.0360.0370.0370.038251.8256.3实配钢筋10@200实配钢筋面积393另外在板的长边方向配10@200的分布钢筋。11楼梯设计11.1设计资料楼梯采用板式楼梯,楼梯踏步尺寸。楼梯上均布荷载标准值。楼梯结构平面布置图如图31所示,剖面图如图32所示。图31楼梯结构平面布置图图32楼梯剖面图11.2踏步板设计(TB1)11.2.1确定踏步板的基本尺寸踏步板计算跨度..
.斜板厚度通常取,图33踏步板取t=120mm,如图33所示。c=150mm计算时板厚取取1m宽斜向板带作为计算单元。踏步板截面尺寸,有效高度。11.2.2荷载计算恒荷载踏步板自重:陶瓷地砖面层:粉刷石膏砂浆板底抹灰:活荷载总计11.2.3内力计算踏步板计算简图如图34所示。跨中弯矩图34踏步板计算简图11.2.4配筋计算,,按构造要求配筋。..
.踏步板选用10@120的受力钢筋,另外在短边方向配置10@200的分布钢筋。11.3平台板设计(TB2)11.3.1确定平台板的基本尺寸,按单向板计算。平台板计算跨度板厚取h=120mm,取1m宽板带作为计算单元。平台板截面尺寸,有效高度。11.3.2荷载计算恒荷载平台板自重:陶瓷地砖面层:粉刷石膏砂浆板底抹灰:活荷载:荷载总计11.3.3内力计算平台板计算简图如图35所示。跨中弯矩图35平台板计算简图11.3.4截面承载力计算..
.,,按构造要求配筋。平台板选用10@200的受力钢筋,另外在长边方向配置10@200的分布钢筋。11.4平台梁设计(TL1)11.4.1确定平台梁尺寸梁计算跨度取=3.225+0.25=3.475m与的较小值,取。平台梁计算截面尺寸,有效高度=400-35=365mm。11.4.2荷载计算平台梁自重:踏步板传来:平台板传来:粉刷石膏砂浆抹灰:荷载设计值:11.4.3内力计算计算简图如图36所示。跨中弯矩支座剪力图36平台梁计算简图11.4.4正截面承载力计算平台梁按倒T形截面进行配筋计算。翼缘有效宽度按倒L形截面计算:..
.按梁的跨度考虑:按翼缘宽度考虑:按翼缘高度考虑:,不存在取三者较小值,取。当时,因此截面按第一类T形截面计算。,,,平台梁选用216的纵向受力钢筋。11.4.5斜截面承载力计算按构造要求配置箍筋,选用28@250的箍筋。,,满足要求。11.5其它梁、板设计..
.TL-2、TL-3配筋同平台梁TL-1的配筋;TB-3配筋同平台板TB-2的配筋。12基础设计基础下设100mm厚C10的素混凝土垫层。基础平面布置图如图37所示。图37基础平面布置图12.1作用于基础顶面上的荷载计算12.1.1A轴基础12.1.1.1标准组合框架柱传来(轴心力):底面外纵墙和基础梁传来(偏心力):。见表58。12.1.1.2基本组合框架柱传来(轴心力):及相应的、:,,及相应的、:,,及相应的、:,,底面外纵墙和基础梁传来(偏心力):。组合值见表59。12.1.2B轴基础12.1.2.1标准组合..
.框架柱传来(轴心力):底面外纵墙和基础梁传来(偏心力):。见表58。12.1.2.2基本组合框架柱传来(轴心力):及相应的、:,,及相应的、:及相应的、:,,底面外纵墙和基础梁传来(偏心力):。组合值表59。表58础顶面作用力的标准组合A轴B轴40.39-40.78-1268.65-1558.53-18.6419.17-49.58-55.48表59基础顶面作用力的基本组合A轴B轴38.43-33.7255.2221.95-56.53-1631.22-1416.37-1491.78-1989.26-1753.4-19.18.61-25.08-6.3726.4-59.5-66.5812.2A柱基础的计算12.2.1初步确定基础尺寸A柱采用柱下独立基础。12.2.1.1选择基础埋深d=1.1m>0.5m,地基承载力特征值需要进行深度修正。12.2.1.2地基承载力特征值修正人工填土,,..
.假定基础宽度,12.2.1.3基础尺寸先按轴心荷载作用下,估算基底面积:考虑偏心影响,将基底面积增加20%,即选用正方形截面:,实际基底面积为。,与假设相符,地基承载力不必对宽度进行修正。初步确定基础高。基础尺寸如图38所示。图38A柱基础平、立、剖面图12.2.2地基承载力验算(采用标准组合)作用与基底的竖向力作用与基底的弯矩基础底面抗弯刚度..
.地基承载力满足要求。12.2.3冲切验算(采用基本组合)取最大基底净反力进行冲切验算。有以下两种组合。(1),,,(2),,,基底反力示意图如图39所示。取第(1)种基本组合中进行冲切验算,锥形基础取柱与基础交接处进行冲切验算。图39基底反力示意图,冲切验算满足要求。12.2.4基础底面配筋计算(采用基本组合)..
.计算截面取柱边,采用基底净反力最大的基本组合进行配筋计算。选配14@200的受力钢筋,两个方向采取相同配筋,另一方向选配14@200的受力钢筋。12.3B柱基础的计算12.3.1初步确定基础尺寸当采用柱下独立基础时,计算出基础面积过大,B柱基础采用联合基础。12.3.1.1选择基础埋深d=1.1m>0.5m,地基承载力特征值需要进行深度修正。12.2.1.2地基承载力特征值修正人工填土,,假定基础宽度,12.3.1.3基础尺寸先按轴心荷载作用下,估算基底面积:考虑偏心影响,将基底面积增加20%,即取,,实际基底面积为。,与假设相符,地基承载力不必对宽度进行修正。初步确定基础高。基础尺寸如图40所示。..
.图40B柱基础平、立、剖面图12.3.2地基承载力验算(采用标准组合)作用与基底的竖向力作用与基底的弯矩和剪力大小相等,方向相反,相互抵消,故作用与基底的弯矩地基承载力满足要求。12.3.3内力分析(采用基本组合)采用基底净反力最大的基本组合进行配筋计算,由于弯矩和剪力相互抵消,因此,轴力最大,基底净反力便最大,即采用轴力最大的基本组合进行配筋计算。..
.12.3.4基础梁配筋计算基底净反力折算为线荷载。基础梁计算简图如图41所示。其中,悬臂部分长,取700mm。。基础梁弯矩图和剪力图分别如图42、43所示。基础梁计算截面尺寸。12.3.4.1正截面承载力计算计算过程见表60。表60基础梁正截面承载力计算截面跨中支座507.30186.55106010600.0530.0190.054<0.550.020<0.551639.6592.41415.7实配钢筋222+320520实配钢筋面积1702157112.3.4.2斜截面承载力计算,计算过程见表61。..
.表61基础梁斜截面承载力计算截面支座左截面支座右截面533.001027.93 2273.7> 636.64>636.64<<01.41箍筋选取 5858 251251构造要求178.5实配箍筋58@17058@170 0.246﹪ 0.163﹪12.3.5底板配筋计算取1m宽板带作为结构及荷载计算单元。基底净反力折算为线荷载,。,计算简图如图44所示。底板弯矩图和剪力图分别如图45、46所示。抗剪验算满足要求。取底板高度,有效高度,,选用14@125的受力钢筋,另一方向选用10@200的分布钢筋。..
.致谢经过一个学期的忙碌,毕业设计已经接近尾声。本次设计我虽然付出了很多辛劳和汗水,但若没有导师的指导和教诲,没有同学的帮助和支持,我的毕业设计不可能顺利地完成。当我打完毕业论文的最后一个字符,涌上心头的不仅是长途跋涉后抵达终点的欣喜,更是源自心底的诚挚谢意。在此,我要感谢每一个帮助过我的人。 首先,我要感谢我的指导老师潘丽云。潘老师身体力行、兢兢业业地为我们排忧解难,在我做毕业设计的每个阶段,都给予我悉心的指导和帮助。潘老师曾主动给我打电话,要我注意一些容易犯的错误;她还在路口等我,为的是把她借的一些资料书给我,让我了解更多的知识;当她听到我嗓子哑时,关心地问:“是不是累的?”……作为一名学生,能得到老师这样的指导和关心,我很感动,也很感激。希望潘老师身体健康,平安快乐。其次,我要感谢其他组的指导老师,比如赵山,王廷彦,王惠等多位老师。他们都在不同方面给了我很多的指点,让我学到了更多更全面的知识。赵山老师在周末时还抽出时间为我们解决问题;王廷彦老师亲自到我们宿舍给我们现场操作与指导;王惠老师经常在教室与我们共同学习。他们都肩负起了作为一位老师的责任,我衷心地感谢他们。最后,我要感谢我的同学和朋友。在做设计的过程中,我与很多同学讨论、研究,互相借阅资料,发表意见,齐心协力,共同进步。当我们经过讨论,达成一致意见时,我就会有一种胜利与骄傲的喜悦,同时也充满了奋进的激情。朋友还帮我借了一台电脑,给我提供了很大的便利。我的毕业设计凝聚了很多同学和朋友的力量,在此,我深深地感谢他们。对各方面的衷心感谢之情难以用言语尽表,谨以此文献给培养、抚育过我的母校,献给支持、爱护和帮助过我的师长、同学和朋友们!..
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