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2014年优秀土木工程毕业设计计算书(推荐)

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'阿拉善右旗一中科技实验图书楼第一部分:建筑设计1.工程概况:1.1工程名称:阿拉善右旗一中科技实验图书楼1.2建筑类型:多层教学建筑1.3工程规模:总建筑面积m21.4结构形式:采用钢筋混凝土框架结构,层数五层,层高3.9米,室内外高差0.45米。2.设计资料:2.1地质条件:场地地势较为平坦,场地自上而下各土层的工程地质特征如下:砾砂,承载能力标准值f=130kN/m2(KPa)角砂,承载能力标准值f=260kN/m2(KPa),Ⅱ类场地本工程地基持力层为角砂,地基承载力特征值[]=260KPa地下水埋深较深,对本工程无影响。2.2基本风压:0.55KN/㎡2.3基本雪压:0.10KN/㎡2.4耐火等级:二级2.5抗震设计烈度8度,Ⅱ类场地3.设计意图:根据任务书的分析及规范规定,本着设计标准化,合理化,实用化,美观化的原则进行设计。4.建筑设计说明:4.1平面设计:整个建筑采用框架设计,教室设计主要采用内廊式平面组合方式。4.1.1房间安排:为满足办公的要求,每一层设一小会议室,在第一层设一大会议室。4.1.2楼梯:根据规范及耐火等级的要求,位于两个外部出口或楼梯之间的房间至外部出口或封闭楼梯间的最大距离为35m,本建筑有三部楼梯,分散布置,均为双跑。且因为梯段的水平投影总长>3m,所以设计为梁式楼梯。4.1.3厕所:最远房间距厕所小于规范规定50m,满足使用要求。4.1.4门厅:门厅与走廊、中部楼梯相通。4.1.5采光:所有房间的窗地比均大于1/5,满足采光要求。4.2立面设计:该建筑立面采用竖向线条,用柱分割以凸显洁净整齐的感觉,门窗居中统一布置,墙外贴灰瓷砖,柱子外贴大理石瓷砖。4.3剖面设计:普通办公室及房间窗台高0.8m,厕所设有高窗。4.4屋面防水:济南大学毕业设计用纸 屋面排水采取有组织排水,材料找坡,按2%排水坡度把屋面降水有组织地排到天沟,设落水管。防水采用高分子防水,保温层采用加气混凝土板保温。4.5门窗设计:入口处采用双扇采用弹簧门,其他房间采用普通实木门,窗均采用铝合金推拉窗。4.6墙体:采用240mm厚粉煤灰轻渣空心砌块。4.7建筑做法:4.7.1散水:混凝土水泥散水素土夯实150厚3︰7灰土夯实(备注:宽600mm,流水坡3—5%,沿墙设缝,沿墙长度每隔8—12mm处伸缩缝油膏嵌缝)60厚C15混凝土20厚1︰2.5水泥砂浆压实抹光4.7.2楼面:(自上而下)8-10厚地砖20厚1:4干硬性水泥砂浆20厚细石混凝土120厚钢筋混凝土板20mm厚板底抹灰卫生间楼面:8-10厚地砖20厚1:4干硬性水泥砂浆1.5厚合成高分子防水涂料15厚1:2水泥砂浆找平层C15细石混凝土找坡最薄处30厚(i=0.5%)120厚钢筋混凝土板20mm厚板底抹灰4.7.3屋面:(自上而下)4mm厚SBS聚脂胎带砂砾防水层20厚1:2.5水泥砂浆找平层水泥膨胀珍珠岩找坡最薄处为20mm厚(i=2%)120厚聚苯板120厚现浇钢筋混凝土板20mm厚板底抹灰4.7.4内墙:粘贴铝塑板墙面(用于楼过道、室内墙、洗手间、楼梯间)刷混凝土界面处理剂一道8厚2︰1︰8水泥石灰膏砂浆打底扫毛8厚1︰2.5水泥砂浆结合层4.7.5外墙:贴面砖墙面,刷ML908水泥砂浆打底扫毛6厚1︰3水泥砂浆打底扫毛12厚1︰0.2︰2水泥砂浆结合层3厚T920瓷砖胶粘剂贴6—12厚面砖,用J924砂质勾缝剂勾缝注:设计采用标准图集济南大学毕业设计用纸 DBJT14—2(建筑做法说明)LD2J01(墙体配件)L92J121(砌块)DBJT14(钢筋混凝土过梁)L91G313(多层砖房抗震构造详图)DBJT14(楼梯)LD3J602(铝合金门窗)LJ104(屋面)LJ105(室内配件)L96J401(楼梯配件)L92J601(木门)济南大学毕业设计用纸 第二部分:结构设计1.设计资料:1.1根据房间使用要求,层高为3.9米,一共五层,室内外高差0.45m1.2屋面做法(自上而下):4mm厚SBS聚脂胎带砂砾防水层20厚1:2.5水泥砂浆找平层水泥膨胀珍珠岩找坡最薄处为20mm厚(i=2%)120厚聚苯板120厚现浇钢筋混凝土,20mm厚班底抹灰1.3楼面(自上而下):8-10厚地砖20厚1:4干硬性水泥砂,20厚细石混凝土120厚钢筋混凝土板20mm厚班底抹灰1.4墙:外墙部分瓷砖贴面,部分为涂料,内墙面粉刷1.5地震烈度:8度,Ⅱ类场地第一组。设计基本地震加速度为0.15g1.6风荷载:0.5KN/㎡(50年一遇)0.3KN/㎡(10年一遇)0.6KN/㎡(60年一遇)1.7雪荷载:0.4KN/㎡(50年一遇)0.25N/㎡(10年一遇)0.45N/㎡(60年一遇)1.8活荷载:楼面活荷载标准值.办公室、卫生间为2.0KN/㎡,走廊、楼梯间为2.5KN/㎡,不上人的钢筋混凝土屋面活荷载为0.5KN/㎡,上人的为2.0KN/㎡,微机室,电教室,语音室,电子阅览室,电子备课室,美术室,声乐室,器乐室楼面的活荷载为3.0N/㎡,舞蹈室,健身房,室内训练场的活荷载为3.5N/㎡。1.9工程地质条件:场地地势较为平坦,场地自上而下各土层的工程地质特征如下:砾砂,承载能力标准值f=130kN/m2(KPa)角砂,承载能力标准值f=260kN/m2(KPa),Ⅱ类场地本工程地基持力层为角砂,地基承载力特征值[]=260KPa地下水埋深较深,对本工程无影响。2.柱网布置:柱网布置如图1所示。济南大学毕业设计用纸 图1柱网布置图3.梁柱尺寸确定:横向框架梁:框架梁的截面高度可按跨度(1/8~1/12)估算确定.但不宜大于净跨的1/4,框架梁截面宽度可取高度的(1/3~1/2).但不宜小于200mm,截面高度和跨度的比值不大于4H=(1/8~1/12)×6800=567~850mm初选H=600mmB=(1/3~1/2)×600=200~300mm初选b=300mm纵向框架梁:考虑到纵梁兼过梁,初选H=800mm,考虑到外墙厚为300,取b=300mm框架柱:底层柱高3900mm,室内外高差为450,考虑到待建的地质条及气候因素,设定基础顶面距离室外地坪550故底层柱高:H=3900+450+550=4900采用等截面柱,从限制细长柱考虑,要求b5≥1/30=4900/30=163,H≥L/25=196mm,截面尺寸可按下列公式估算:B=H/15=4900/15=328,取B=600mm;框架柱截面都采用方形截面以利于抗震,故取H=600mm济南大学毕业设计用纸 4.楼板设计:4.1设计资料4.1.1楼面做法:8-10厚地砖20厚1:4干硬性水泥砂,20厚细石混凝土120厚钢筋混凝土板20mm厚班底抹灰4.1.2楼面荷载:教室、办公室及卫生间均布活荷载2.0KN/㎡,走廊及楼梯均布活载2.5KN/㎡,微机室、美术室均布活荷载3.0KN/㎡,4.1.3材料:混凝土等级C25,板内受力钢筋用HPB2354.2楼板平面布置楼板结构布置图如下图,按高跨比条件连续板h≥3900/50=78mm,∴取板厚120mm区格板B1B2B3B6为双向板4.3双向板的设计4.3.1荷载设计值:恒载分项系数取1.2,活载分项系数取1.4,得卫生间、办公室:g=1.2×(2.5×0.12+2.0×0.02+0.12+28×0.02)=4.896KN/㎡q1=1.4×2.00=2.8KN/㎡g+q1/2=6.23KN/㎡g+q1=7.7KN/㎡走廊及门厅:  g=1.2×4.08=4.9KN/㎡q2=1.4×2.50=3.50KN/㎡q2/2=1.75KN/㎡g+q2/2=6.65KN/㎡g+q2=8.4KN/㎡4.3.2计算跨度:由于板在各个分格(包括边跨)均与梁整体现浇,故内跨:Lo=Lc(轴线间距)边跨Lo=Lc-120+120/2济南大学毕业设计用纸 图2现浇板区化分图济南大学毕业设计用纸 板区格B1B2B3B6L014.26.02.76.3L026.66.64.27.2L01/L020.6360.9090.6420.875(kN/m)(0.0351+0.2×0.009)×6.23×4.22+(0.0769+0.2×0.026)×1.4×4.22=6.083(0.0194+0.2×0.0166)×6.23×62+(0.0448+0.2×0.0359)×1.4×62=7.716(0.0363+0.2×0.0092)×6.65×2.72+(0.0076+0.2×0.0266)×1.75×2.72=2.886(0.02335+0.2×0.01605)×6.23×6.32+(0.0481+0.2×0.0353)×1.4×6.32=8.188(kN/m)(0.009+0.2×0.0351)×6.23×4.22+(0.026+0.2×0.0769)×1.4×4.22=2.782(0.0166+0.2×0.0194)×6.23×62+(0.0359+0.2×0.0448)×1.4×62=6.854(0.0092+0.2×0.0363)×6.65×2.72+(0.0266+0.2×0.076)×175×2.72=1.331(0.01605+0.2×0.02335)×6.23×6.32+(0.0353+0.2×0.0481)×1.4×6.32=7.619.(kN/m)-0.0779×7.7×4.22=-10.58-0.0581×7.7×62=-16.10532-0.077×8.4×2.72=-4.715-0.0607×7.7×6.32=-18.5507(kN/m)-10.58-16.10532-4.715-18.5507(kN/m)-0.0571×7.7×4.22=-7.7557-0.0538×7.7×62=-14.913-0.0571×8.4×2.72=-3.497-0.0546×7.7×6.32=-16.686(kN/m)-7.7557-14.913-3.497-16.686表1:弹性理论计算弯矩值4.3.3弯矩计算混凝土γ=0.2。跨中最大弯矩取在g+q/2作用下(内支座固定)的跨中弯矩值取在q/2作用下(内支座简支)的跨中弯矩之和,支座最大弯矩取在g+q作用下(内支座固定)的支座弯矩。根据支撑情况,整个楼面分为B1、B2、B3、B6五个区格,现将各区格板计算跨度及跨中、支座弯矩列于表14.3.4截面设计截面有效高度:Lo1方向跨中截面的1=100mm,Lo2方向跨中截面的1=90mm.支座截面=100mm相邻区格的支座弯矩取绝对值较大者,配筋计算时取γ济南大学毕业设计用纸 =0.95,=,=210kN/mm2表2:按弹性理论设计的楼面板截面配筋截面区格方向(mm)M(kN·M)配筋实际配筋跨中B1Lo11006.083304.9Ф8@160314.0Lo2902.742154.9Ф8@240210.0B2Lo11007.716386.77Ф8@130387.0Lo2906.854381.73Ф8@130387.0B3Lo11002.886144.60Ф8@240210.0Lo2901.33174.13Ф8@240210.0B6Lo11008.188410.43Ф8@120419.0Lo2907.619424.24Ф8@110457.0支座B1-B1100-7.7557388.76Ф8/10@160403.0B1-B2100-16.105807.27Ф10@95826.0B1-B3100-7.7557388.76Ф8/10@160403.0B2-B2100-14.913771.89Ф10@100785.0B2-B6100-16.686836.39Ф10/12@110871.0B6-B6100-16.686836.39Ф10/12@110871.05.框架结构计算。5.1确定框架计算简图假定框架柱嵌固于基础顶面,框架粮与柱刚接,由于各层柱的截面尺寸不变,故梁跨等于柱截面形心轴线间的距离。底层柱高为4920,其它楼层均为3600,按平均负载原则选取10轴为一个计算单元,负载区宽度为7.2m,计算简图如图4,图5所示5.2计算框架线刚度采用混凝土强度等级:梁用C30(Ec=30.0×KN/㎡)柱用C50(Ec=34.5×KN/㎡)边跨梁中跨梁济南大学毕业设计用纸 上层柱底层柱图4框架计算简图图5梁柱的相对线刚度令:,则各杆相对线刚度相对值为:框架梁柱的相对线刚度如图5所示,作为各节点杆端弯矩分配依据。5.3荷载标准值的计算5.3.1恒荷载标准值参照GB50009—2001《建筑结构荷载规范》对材料及有关建筑做的取法,分层分部计算出有关的恒载标准值。济南大学毕业设计用纸 屋面框架梁线荷载标准值SBS防水层0.4KN/㎡39厚细石混凝土找平2.4×0.03=0.72KN/㎡115厚陶粒混凝土找坡7×0.125=0.875KN/㎡120厚加气混凝土块保温25×0.12=3.0KN/㎡20厚现浇钢筋混凝土楼板25×0.12=3.0KN/㎡吊顶0.4KN/㎡屋面荷载标准值6.2KN/㎡框架梁自重0.3×0.6×25=4.5KN/㎡侧粉刷2×(0.6-0.12)×0.02×17=0.326KN/㎡作用在顶层框架梁上线荷载g61=4.5+0.326=4.826KN/mg62=6.2×7.2=44.64KN/m楼面框架梁线荷载标准植大理石地面28×0.02=0.56KN/㎡20厚1:2水泥沙浆找平20×0.02=0.4KN/㎡120厚现浇钢筋混凝土板25×0.12=3.0KN/㎡吊顶0.12KN/㎡楼面荷载4.08KN/㎡边跨框架梁自重及两侧粉刷4.826KN/㎡边跨填充墙0.2×(3.6-0.6)×6=3.6KN/㎡墙面粉刷0.2×(3.6-0.6-0.15)×2×17=1.938KN/㎡踢脚线0.15×0.025×17×2=0.1275KN/㎡中框架梁及梁侧粉刷4.826KN/㎡作用在中间层框架梁上的线荷载39.86KN/㎡屋面框架节点集中荷载标准值边节点边柱框架联系梁自重0.3×0.6×(7.2-0.4)=30.6KN/㎡粉刷及贴瓷砖0.5×0.6×(7.2-0.4)+0.02×(7.2-0.4)×(0.6-0.12)×17=3.149KN/㎡0.6m高女儿墙自重0.6×(7.2-0.4)×0.24×19=19.0KN/㎡粉刷及贴瓷砖0.6×(7.2-0.24)×(0.5+0.02×17)=3.50KN/㎡连系梁传来的屋面自重1/2×7.2×1/2×7.2×6.2=80.35KN/㎡济南大学毕业设计用纸 顶层边节点集中荷载注:贴面砖墙面0.5KN/㎡包括水泥砂浆打底厚25中节点中柱联系梁自重0.3×0.6×(7.2-0.4)×25=30.6KN粉刷2×0.02×(7.2-0.4)×(0.6-0.12)×17=2.22KN连系梁传来的屋面自重(1/2×1/2×2.7×2.7+1/2×7.2×1/2×7.2)×6.2=91.65KN顶层中节点集中荷载楼面框架节点集中荷载标准值边柱框架连系梁自重30.6KN粉刷及贴瓷砖3.149KN钢窗自重21.8×2.4×0.45=3.88KN窗下墙体自重(窗台高800)0.24×0.8×1.8×2×19=13.13KN粉刷及贴瓷砖0.5×1.8×2×0.8+0.02×2×(0.8-0.15)×1.8×17=2.199KN窗边墙体自重0.24×(0.3+0.25)×2×(3.6-0.6)×19=15.05KN贴瓷砖及粉刷0.5×(0.3+0.25)×2×(3.6-0.6)+0.02×(0.3+0.25)×2×(3.6-0.6-0.15)×17=2.72KN顶层框架柱自重(0.4×0.4×3.6+0.24×0.24×0.6)×25=15.264KN粉刷0.24×0.6×0.5+0.02×0.24×0.6×1.7+(0.4+0.08×2)×3.6×0.5+0.02×(0.4+0.08×2)×(3.6-0.15)×17=1.742KN中间层框架住自重0.4×0.4×3.6×25=14.4KN粉刷(0.4+0.08×2)×3.6×0.5+0.02×(0.4+0.08×2)×(3.6-0.15)×17=1.008+0.05688=1.665KN踢脚线0.15×(7.2+0.08×2)×0.025×17=0.469KN连系梁传来的楼面自重(1/2×1/2×2.7×2.7+1/2×7.2×1/2×7.2×1/2×2)×4.08=60.3KN五层边节点集中荷载一~四层边节点集中荷载中柱连系梁自重30.6KN粉刷0.5×0.6×(7.2-0.4)+0.02×(7.2-0.4)×(0.6-0.12)×17=3.149KN内纵墙自重及门及过梁自重〔(3.6-0.6)×(7.2-0.4)-2×1.5×2.4-2×2.0×0.4〕×0.2×6+2.0×0.2×0.4×2×25=21.92KN粉刷〔(3.6-0.6-0.15)×(7.2-0.4)-2×1.5×(2.4-0.15)〕×0.02×2×17=8.588KN踢脚线〔0.15×(7.2+0.1×2)-2×0.15×1.5〕×0.025×2×17=0.561KN济南大学毕业设计用纸 门重2×1.2×2.4×0.45=2.59KN框架柱自重0.4×0.4×3.6×25=14.4KN粉刷(0.4+0.1×2)×(3.6-0.15)×0.02×2×17=1.407KN连系梁传来的楼面自重(1/2×1/2×2.7×2.7+1/2×7.2×1/2×7.2×1/2×2)×4.08=60.3KN中间层中节点集中荷载恒载作用下结构的计算简图如图6所示。图6结构恒载图(kNm,kN)5.3.2活荷载标准值由规范查得:屋面活荷载的标准值为0.70kN/m2(不上人),雪荷载标准值为0.4kN/m2,两者不同时考虑,取两者中的较大值:0.70kN/m2.楼面活荷载标准值.公室、卫生间为2.0KN/㎡,走廊、楼梯间为2.5KN/㎡,不上人的钢筋混凝土屋面活荷载为0.5KN/㎡,上人的为2.0KN/㎡.顶层:==0.7×7.2=5.04kN/m=5.034kN/m==2.0×7.2=14.4kN/m=2.5×7.2=18kN/m济南大学毕业设计用纸 ==0.5×7.2×0.5×7.2×0.5×2×0.7=9.072KN==(0.5×0.5×2.7×2.7+×0.5×7.2×0.5×7.2)×0.7=10.347KN==0.5×7.2×0.5×7.2×2=25.92kN==0.5×2.7×0.5×2.7×2.0+1/2×1/2×7.2×7.2×2.0=30.48kN活荷载作用下结构的计算简图如图7所示。图7活荷载计算简图(kNm,kN)5.3.3风荷载计算风荷载标准值计算公式:ω=βz·μs·μz·ω0其中:ω0=0.5kN/m2(50年)风震系数:βz=1.0(房屋未超过30m)风载体型系数:μs=0.8-(-0.5)=1.3济南大学毕业设计用纸 风压高度系数:μz查《建筑结构荷载规范》列于表3。节点风荷载:=ωR·A计算结果如表3所示(地面粗糙度为B类)表3风荷载计算表层号Z(m)βzμsμzω0(KN/㎡)A(㎡)Pω(KN)622.371.01.31.3310.50(1.8+0.6)×7.2=17.2814.95518.771.01.31.2230.503.6×7.2=25.9220.605415.171.01.31.1440.503.6×7.2=25.9219.274311.571.01.31.0440.503.6×7.2=25.9217.58927.971.01.31.000.503.6×7.2=25.9216.84814.371.01.31.000.50(4.37+3.6)×7.2×0.5=28.69218.649风荷载作用下的计算简图如图8所示。济南大学毕业设计用纸 图8风荷载作用下计算简图(kN)5.3.4地震荷载计算对于高度H<40m以剪切变形为主且质量和刚度分布十分均匀,结构采用底部剪力法计算。设计要求设防烈度为7度,Ⅱ类场地。经计算,结构各层的总重力荷载代表值为:顶层:=8439KN中间层:=8586KN(注:二楼全部自重+0.5雪载+0.5楼面活载)根据GB50009—2000规范,结构的基本自震周期公式为T=0.25+0.035××=0.25+0.035××=0.543s其中:H为结构总高度,B为结构宽度。设防地震裂度为7度,则水平地震影响系数最大值αmax=0.08,在Ⅱ类场地条件下,其特征周期为:Tg=0.35s地震影响系数α1为α1=×αmax=×0.08=0.05388济南大学毕业设计用纸 结构总重力荷载代表值GE=8439+8656×5=51369KN则底剪力法计算的水平地震力为::FEK总=α1Geq=α1×0.85×GE=0.05388×0.85×51369=2352.6KN每榀框架所承受的总水平地震力为:KN每榀框架所承受的地震作用力为:Fi=×FEK(i=1,2,3,4,5,6)计算过程如表4所示。表4地震作用力计算层数Hi(m)Gi(KN)GiHi(103KN·M)(103KN·M)Fi(KN)Fi(KN)622.928439193.42713.72713.720.27170.8470.84519.328586165.880.23260.64131.48415.728586134.970.18949.41180.89312.128586104.060.14638.16219.0528.52858673.150.10226.67245.7214.92858642.240.05915.68261.4地震荷载作用下的计算简图如图9所示。济南大学毕业设计用纸 图9地震荷载作用下计算简图(kN)5.4框架结构内力计算5.4.1恒载为竖向荷载,内力计算采用弯矩二次分配计算,在恒载作用下的框架计算简图如图6所示。将三角形及梯形分布荷载等级为均布荷载,其等效如图10所示。图10三角形荷载分布荷载等效为均布荷载计算过程如表5所示表5(kN)此时,恒载作用下的计算简图如图11所示。济南大学毕业设计用纸 楼层梁顶层边跨梁4.8344.640.5027.932.73中跨梁4.8344.640.5027.932.73中间层边跨梁10.529.3760.5018.3628.86中跨梁4.8329.3760.5018.3623.19济南大学毕业设计用纸 梁端弯矩,其计算过程如表6所示。表6:杆端弯矩楼层梁(m)=(KNm)顶层边跨梁32.736.3108.25中跨梁32.732.719.88中间层边跨梁28.866.395.45中跨梁23.192.714.09采用弯矩二次分配法计算,在恒载作用下框架的内力计算过程如表7所示。表7:恒载下内力计算表上柱下柱右梁左梁上柱下柱右梁0.2840.7150.6250.1070.268-108.25108.25-19.8830.8677.39-55.23-9.45-23.6810.59-27.61538.69-3.9054.8312.17-21.74-3.72-9.32546.3-46.369.96-17.07-52.885上柱下柱右梁左梁上柱下柱右梁0.2220.2220.5560.5650.0960.0960.243-95.4595.45-14.0921.1921.1953.07-45.96-7.81-7.81-19.7815.4310.59-22.9826.54-4.73-3.9-0.68-0.68-1.68-10.12-1.72-1.72-4.3532.5731.11-63.6865.51-14.86-13.43-38.22上柱下柱右梁左梁上柱下柱右梁0.2220.2220.5560.5650.0960.0960.243-95.4595.45-14.0921.1921.1953.07-45.96-7.81-7.81-19.7810.5910.59-22.9826.54-3.9-3.90.40.41-10.59-1.8-1.8-4.5532.1832.18-64.3665.44-13.51-13.51-38.42济南大学毕业设计用纸 上柱下柱右梁左梁上柱下柱右梁0.2220.2220.5560.5650.0960.0960.243-95.4595.45-14.0921.1921.1953.07-45.967.81-7.81-19.7810.5910.59-22.9826.54-3.9-3.90.40.41-10.59-1.8-1.8-4.5532.1832.18-64.3665.44-13.51-13.51-38.42上柱下柱右梁左梁上柱下柱右梁0.2220.2220.5560.5650.0960.0960.243-95.4595.45-14.0921.1921.1953.07-45.96-7.81-7.81-19.7810.5910.59-22.9826.54-3.93.90.40.41-10.59-1.8-1.8-4.5532.1832.18-64.3665.44-13.51-13.51-38.42上柱下柱右梁左梁上柱下柱右梁0.2220.2220.5560.5650.0960.0960.243-95.4595.45-14.0921.1921.1953.07-45.96-7.81-7.81-19.7810.59-23.5628.25-3.93.062.237.68-14.09-2.435-1.753-6.07236.1818.65-54.8362.5-14.47-7.613-40.417⑴计算完毕后所得框架弯矩图如图12所示。⑵求得框架各梁、柱的剪力和轴力如图13,图14所示。⑶考虑梁端弯矩周幅,并将梁端点弯矩换算至梁端柱边弯矩,以备内力组合时用,如图15所示。济南大学毕业设计用纸 图12恒载弯矩图(kNm)济南大学毕业设计用纸 图13恒载作用下的框架剪力图(kN)图14恒载下的框架轴力图(kN)济南大学毕业设计用纸 图15调幅后恒载弯矩图(kNm)济南大学毕业设计用纸 5.4.2活荷载作用下的内力计算活荷载内力计算仍然用弯矩二次分配法。设计中活荷载满跨布置。将三角形分布荷载等效为均布荷载,计算过程如表8所示。表8:楼层梁P(KN·M)α(KN·M)顶层边跨梁5.040.503.15中右梁5.040.503.15中间层边左梁14.40.509中右梁180.5011.25此时,活载作用下的框架结构计算简图变为图16所示。图16换算后的活载计算图济南大学毕业设计用纸 计算杆端弯矩,梁端弯矩M=/12,其计算过程如表9所示。同理,采用弯矩二次分配法,计算活载作用下框架内力,如下表10所示。楼层梁号(KN·m)=/12(KN·m)顶层边跨梁3.156.310.42中跨梁3.152.71.92其他层边跨梁96.329.76中跨梁11.252.76.836.83表9杆端弯矩表10活荷载内力计算表上柱下柱右梁左梁上柱下柱右梁0.2840.7150.6250.1070.268-10.4210.42-1.922.977.45-5.31-9.1-2.283.3-2.663.725-1.1-0.18-0.46-1.64-0.28-0.7056.09-6.097.195-2.29-4.95上柱下柱右梁左梁上柱下柱右梁0.2220.2220.5560.5650.0960.0960.243-29.7629.76-6.836.66.616.56-12.96-2.2-2.2-5.571.4853.3-6.488.28-0.46-1.10.3760.3760.943-3.797-0.645-0.645-1.6338.46110.276-18.7421.283-3.305-3.945-14.033上柱下柱右梁左梁上柱下柱右梁0.2220.2220.5560.5650.0960.0960.243-29.7629.76-6.836.66.616.56-12.96-2.2-2.2-5.573.33.3-6.488.28-1.1-1.1-0.027-0.027-0.0668-3.435-0.584-0.584-1.4779.879.87-19.7421.645-3.984-3.984-13.68济南大学毕业设计用纸 上柱下柱右梁左梁上柱下柱右梁0.2220.2220.5560.5650.0960.0960.243-29.7629.76-6.836.66.616.56-12.96-2.2-2.2-5.573.33.3-6.488.48-1.1-1.1-0.027-0.027-0.0668-3.435-0.584-0.584-1.4779.879.87-19.7421.645-3.984-3.984-13.68上柱下柱右梁左梁上柱下柱右梁0.2220.2220.5560.5650.0960.0960.243-29.7629.76-6.836.66.616.56-12.76-2.2-2.2-5.573.33.51-6.488.48-1.1-1.4880.0730.0730.184-3.33-0.566-0.566-1.439.97310.183-19.49621.95-3.866-4.254-13.83上柱下柱右梁左梁上柱下柱右梁0.2220.2220.5560.5650.0960.0960.243-29.7629.76-6.837.025.1217.62-13.276-2.29-1.65-5.7143.3-6.6388.81-1.11.250.9153.15-4.46-0.771-0.555-1.92411.576.035-17.60520.834-4.161-2.205-14.468⑴计算完毕后所得框架弯矩图如图17所示。⑵求得框架各梁、柱的剪力图和轴力图,如图18,19所示。柱的轴力包括纵墙传来轴力及自重。⑶考虑梁端弯矩调幅,并将梁端弯矩换算至梁端柱边弯矩,以备内力组合时用,调幅系数取0.85,调幅后弯矩如图20所示。济南大学毕业设计用纸 图17活载弯矩图(kNm)济南大学毕业设计用纸 图18活荷载剪力图(kN)图19活荷载轴力图(kN)济南大学毕业设计用纸 图20调幅后的活载弯矩图(kNm)济南大学毕业设计用纸 5.4.3风荷载的内力计算风荷载作用下内力计算采用D值法,其计算简图如图8所示。⑴各柱剪力V一般层:K==底层:K==风荷载作用下柱的剪力计算过程如表11所示表11风载下柱的剪力计算表楼层(kN)柱号614.95边柱2.510.562.7323.06中柱8.360.8064.41535.56边柱2.510.562.7327.29中柱8.360.80610.49454.83边柱2.510.562.73211.24中柱8.360.80616.18372.42边柱2.510.562.73214.84济南大学毕业设计用纸 中柱8.360.80621.37289.27边柱2.510.562.73218.29中柱8.360.80626.341107.9边柱3.440.723.224.27中柱11.460.8829.7⑵求反弯点高度由计算简图知风荷载分布较接近于均布荷载,可由规则框架承受均布水平力作用时标准反弯点的高度比值查表。本设计中各层横梁线刚度相同,层高除底层外均相同,则===0,因此柱底至反弯点高度=(+++)h=h,计算过程如下表12。⑶风荷载作用下的框架内力计算过程求得各柱的反弯点高度yh和杆端剪力后即可求出各杆端弯矩。再根据节点平衡条件求得梁端弯矩,并进而求出各梁端剪力和各柱的轴力。计算过程如表13,14所示,风荷载作用下的框架弯矩图如图21所示,剪力图和轴力图如图22所示。济南大学毕业设计用纸 表12:反弯点高度h层数层高柱号=h(m)63.6边柱2.510.4251.53中柱8.360.4501.6253.6边柱2.510.4501.62中柱8.360.501.843.6边柱2.510.4751.71中柱8.360.501.833.6边柱2.510.501.8中柱8.360.501.823.6边柱2.510.501.8中柱8.360.501.814.92边柱3.440.552.695中柱11.460.552.695表13:梁柱剪力轴力表梁内剪力柱内轴力边跨中跨边柱中柱1.343.691.342.354.1512.285.4910.487.423.912.8926.9810.53523.451.4813.544.536.982.4819.158.556121.88济南大学毕业设计用纸 楼层层高(m)柱截面剪力值柱反弯点高度柱端弯矩()边跨梁端弯矩中跨梁端弯矩边柱中柱边柱中柱柱号边柱中柱左端右端左端右端63.63.064.411.531.62上端6.337.136.332.144.994.99下端4.686.753.67.2910.491.621.8上端14.416.9919.087.1116.5816.58下端11.816.9943.611.2416.181.711.8上端21.229.13313.832.332.3下端19.229.133.614.8421.371.81.8上端26.71238.445.920.2547.2547.25下端26.71238.423.618.2926.341.81.8上端32.947.459.6125.760.160.1下端32.947.414.9224.2729.72.6952.695上端53.565.586.433.8779.0379.03下端65.480.1表14∶风载下杆端弯矩计算表济南大学毕业设计用纸 图21风荷载弯矩图(kNm)图22风荷载剪力轴力图(kN)济南大学毕业设计用纸 5.4.4地震荷载作用下的内力采用D值法计算,其计算简图如图9所示。⑴各柱剪力V一般层:K==底层:K==地震荷载作用下柱的剪力计算过程如表15所示表15:剪力计算表楼层(kN)柱号670.84边柱2.510.562.73214.52中柱8.360.80620.895131.48边柱2.510.562.73226.95中柱8.360.80638.794180.89边柱2.510.562.73237.08中柱8.360.80653.363219.05边柱2.510.562.73244.90中柱8.360.80664.62济南大学毕业设计用纸 2245.72边柱2.510.562.73250.225中柱8.360.80672.491261.4边柱3.440.723.258.82中柱11.460.8871.89⑵求反弯点高度地震荷载分布较接近于倒三角形分布荷载,可由规则框架承受倒三角形水平力作用时标准反弯点的高度比值查表而得。本设计中各层横梁线刚度相同,层高除底层外均相同,则===0,因此柱底至反弯点高度=(+++)h=h,计算过程如下表16。层数层高柱号=h(m)63.6边柱2.510.4251.53中柱8.360.4501.6253.6边柱2.510.4501.62中柱8.360.501.843.6边柱2.510.4751.71中柱8.360.501.8表16:反弯点高度h济南大学毕业设计用纸 层数层高柱号=h(m)33.6边柱2.510.501.8中柱8.360.501.823.6边柱2.510.501.8中柱8.360.501.814.92边柱3.440.552.695中柱11.460.552.695⑶地震荷载作用下的框架内力计算过程求得各柱的反弯点高度yh和杆端剪力后即可求出各杆端弯矩。再根据节点平衡条件求得梁端弯矩,并进而求出各梁端剪力和各柱的轴力。梁柱剪力轴力计算如表17所示,梁柱端弯矩计算如表18所示,地震荷载作用下的框架弯矩图如图24所示,剪力图和轴力图如图25,26所示。表17∶梁柱剪力轴力表梁内剪力柱内轴力边跨中跨边柱中柱6.721.446.714.7416.953.7223.651.5625.9686.0249.56111.6233110.1382.56188.7538.93127.97121.49277.7948.69149.85170.18378.95济南大学毕业设计用纸 楼层层高(m)柱截面剪力值柱反弯点高度柱端弯矩()边跨梁端弯矩中跨梁端弯矩边柱中柱边柱中柱柱号边柱中柱左端右端左端右端63.614.5220.891.531.62上端30.141.3630.112.4128.9528.95下端22.233.853.626.9538.791.621.8上端53.3669.875.5631.0872.5272.52下端43.6669.843.637.0853.361.711.8上端70.196.1113.7649.77116.13116.13下端63.4196.133.644.964.621.81.8上端80.82116.3144.3363.72148.68148.68下端80.82116.323.650.2572.491.81.8上端90.4130.5171.2274.04172.76172.76下端90.4130.514.9258.8271.892.6952.695上端129.7158.5220.186.7202.3202.3下端158.52193.7表18:地震荷载下杆端弯矩计算表济南大学毕业设计用纸 图24地震荷载弯矩图(kNm)图25地震荷载剪力轴力图(Kn)济南大学毕业设计用纸 5.5框架结构恻移计算5.5.1风载作用下框架结构侧移验算求出框架的实际抗侧移刚度值,风载采用荷载标准值,因房屋高度小于50m,故可考虑框架的整体变形。,—由柱开裂引起的刚度折减系数浇混凝土结构取0.85。计算结果见表19:楼层(KN)(m)相对值()限值614.952(0.56+0.806)×12×20.44××0.85/=439490.000340.0000941/550(0.0018)535.56439490.000810.00023454.83439490.00120.00033372.42439490.00160.00044289.27439490.00210.000581107.92(0.72+0.88)×12×14.96××0.85/=201720.005340.00108顶点0.011390.0005由表19可知,其层间侧移与顶点侧移均满足要求济南大学毕业设计用纸 5.5.2地震荷载作用下框架结构侧移验算计算方法与风荷载作用下侧移验算方法相同,计算过程如下表20表20地震荷载作用下的验算框架层间弹性位移楼层(KN)(m)相对值()限值670.842(0.56+0.806)×12×20.44××0.85/=439490.001610.00041/450(0.0022)5131.48439490.000290.00084180.89439490.00410.00113219.05439490.00490.001362245.72439490.00560.001561261.42(0.72+0.88)×12×14.96××0.85/=201720.01290.0021顶点0.032010.00139由表20可知,在地震荷载作用下层间相对位移及顶点侧移均满足要求济南大学毕业设计用纸 5.6内力组合各荷载作用下的内力计算完毕后,即可进行框架各梁柱各控制截面上的内力组合。梁的控制截面为梁端及跨中,每层框架梁的控制截面为6个,即图中所示1,2,3,4,5,截面。而柱有两个控制截面,即6,7截面,如图26。图26框架梁柱控制截面图框架梁柱控制截面上的内力组合过程如下表所示表22:梁内力组合济南大学毕业设计用纸 楼层6层荷载组合内力12345恒载-39.4112.95-59.47-45-15.1799.34-3.76-106.8644.190活载-5.179.985-6.12-4.17-1.39.74-0.18-10.14.250风载±6.33±2.09±2.14±4.990±1.34±1.34±1.34±3.69±3.69地震±30.1±8.845±12.41±28.95±0±6.7±6.7±6.7±21.44±21.44内力组合1.2×恒载+1.4×活载-54.52149.52-79.93-59.84-20.02132.84-4.96-142.3758.9801.2×恒载+1.4×风载-38.418138.47-68.37-47.01-18.204-55.83132.61-76.4-59.84-18.204121.08-2.636-126.3758.195.171.2×恒载+1.4×0.9×(活载+风载)-45.82149.81-76.4-52.97-19.84-61.77145.49-81.77-65.54-19.84133.17-3.05-139.2763.034.651.2×(恒载+0.5×活载)+1.3×地震作用-11.25153.03-57.66-18.87-18.98-89.51130.03-91.17-94.137-18.98133.764.31-125.5884.4527.87最不利内力组合-11.25153.03-57.66-18.87-18.204-89.51130.03-91.17-94.137-20.02133.764.31-142.3783.4527.87济南大学毕业设计用纸 楼层5层荷载组合内力12345恒载-54.1387.77-56.7-32.5-11.3790.32-0.44-91.231.30活载-15.9227.64-18.1-11.93-1.6827.9-0.45-28.815.20风载±19.08±5.98±7.11±16.580±4.15±4.15±4.15±12.28±12.28地震±75.56±22.24±31.08±72.52±0±16.9±16.9±16.9±53.72±53.72内力组合1.2×恒载+1.4×活载-87.25144.02-93.38-55.7-15.9147.44-1.158-149.7658.8401.2×恒载+1.4×风载-38.24113.69-58.09-15.79-13.64-91.6796.95-77.99-66.21-13.64102.577.84-103.654.7517.191.2×恒载+1.4×0.9×(活载+风载)-60.97147.69-81.89-33.14-15.76-109.06132.62-99.81-74.92-15.76195.834.134-136.7772.1815.471.2×(恒载+0.5×活载)+1.3×地震作用23.72150.82-38.4555.37-14.65-172.7492.99-119.304-133.18-14.65147.0921.17-104.75116.5269.84最不利内力组合23.72150.82-38.4555.37-13.64-172.7492.99-119.304-133.18-15.76195.8321.17-149.76116.5269.84济南大学毕业设计用纸 楼层4层荷载组合内力12345恒载-54.788.03-55.6-32.7-11.5790.73-0.185-91.131.30活载-16.7827.06-18.4-11.63-1.3828.1-0.3-28.715.20风载±33±9.6±13.8±32.30±7.4±7.4±7.4±23.9±23.9地震±113.7±31.99±49.77±116.1±0±25.96±25.96±25.96±86.02±86.02内力组合1.2×恒载+1.4×活载-89.13143.52-92.48-55.5-15.82148.22-0.642-149.558.8401.2×恒载+1.4×风载-19.44119.07-47.45.98-13.88-111.8492.19-86.04-84.46-13.88119.2410.14-98.9671.0233.461.2×恒载+1.4×0.9×(活载+风载)-45.2151.83-72.52-13.19-15.623-128.262127.64-107.29-94.59-15.623153.619.168-136.1686.82630.111.2×(恒载+0.5×活载)+1.3×地震作用72.18163.47-13.06104.75-14.72-223.5980.28-142.46-197.19-14.712159.4833.35-92.79158.51111.83最不利内力组合72.18163.47-13.06104.75-13.88-223.5980.28-142.46-197.19-15.623Vmax159.4833.35-92.79158.51111.83济南大学毕业设计用纸 楼层3层荷载组合内力12345恒载-54.788.03-55.6-32.7-11.5790.73-0.185-91.131.30活载-16.7827.06-18.4-11.63-7.3828.1-0.3-28.715.20风载±45.9±12.82±20.25±47.250±10.5±10.5±10.5±35±35地震±144.23±40.26±63.72±148.6±0±33±33±33±110.1±110.1内力组合1.2×恒载+1.4×活载-89.13143.52-92.58-55.52-24.216148.22-0.642-149.558.8401.2×恒载+1.4×风载-1.38123.59-38.3826.91-13.88-129.987.68-88.8-105.39-13.88123.5814.48-94.62245.7491.2×恒载+1.4×0.9×(活载+风载)-28.9155.59-64.395.64-4.58-144.62123.57-115.42-113.43-4.58157.5112.63-132.25100.8144.11.2×(恒载+0.5×活载)+1.3×地震作用82.95174.215.076117.33-18.32-234.3669.53-160.66-209.77-18.32168.6442.49-100.86167.8121.14最不利内力组合82.95174.215.076117.33-4.58-234.3669.53-160.6-209.77-18.312168.6442.49-94.62167.8121.14济南大学毕业设计用纸 楼层2层荷载组合内力12345恒载-54.788.03-55.6-32.7-11.5790.73-0.185-91.131.30活载-16.5727.04-18.66-11.75-14.9827.9-0.4-28.715.20风载±59.61±16.95±25.7±60.10±13.5±13.5±13.5±44.5±44.5地震±171.2±48.6±74.04±172.7±0±38.93±38.93±127.9±127.9±127.9内力组合1.2×恒载+1.4×活载-88.84143.49-92.84-55.69-15.98147.9-0.78249.558.84101.2×恒载+1.4×风载17.82129.37-30.7444.9-13.88149.0981.89-102.7-123.38-13.88127.7818.678-90.4299.8662.31.2×恒载+1.4×0.9×(活载+风载)-11.41161.07-57.8521.68-15.77-161.63118.34-122.61-129.77-15.77161.0416.284-128.47112.7853.41.2×(恒载+0.5×活载)+1.3×地震作用147.004185.0418.336168.79-15.77-298.1758.68-174.168-270.88-15.77176.2350.15-75.93213.04168.96最不利内力组合147.00185.0418.336168.79-13.88-298.1758.68-174.168-270.88-15.98Vmax176.2350.15-128.47213.04168.96济南大学毕业设计用纸 楼层1层荷载组合内力12345恒载-46.693.32-53.125-34.35-13.2289.7-1.2-92.131.30活载-14.9628.32-17.7-12.3-2.0527.8-1.1-2.8915.20风载±86.4±26.26±33.87±79.03±0±19.1±19.1±19.1±58.5±58.5地震±220.1±66.7±86.7±202.3±0±48.69±48.69±149.85±149.8±149.8内力组合1.2×恒载+1.4×活载-76.86151.63-88.53-58.44-20.02146.56-20.98-150.9858.4401.2×恒载+1.4×风载65.04148.06-16.3369.42-15.86-176.8875.213-111.16-151.86-15.86134.3825.3-83.78119.4681.91.2×恒载+1.4×0.9×(活载+风载)34.09180.76-43.3842.86-18.45-183.63114.57-110.12-156.29-18.45166.7321.24-122.87130.4273.711.2×(恒载+0.5×活载)+1.3×地震作用221.2213.7938.34214.39-17.094-351.0340.37-187.08-311.59-17.094187.6261.19-64.56241.4194.80最不利内力组合221.2213.7938.34214.39-15.86-351.0340.37-187.08-311.59-18.73187.6261.19-150.98241.4194.80济南大学毕业设计用纸 表23柱内力组合表层号6层柱号柱B柱C恒载①32.5746.3250.99-14.86-17.08290.7活载②8.4616.0918.81-3.3-2.2939.1风荷载③±4.68±6.33±1.34±6.7±7.13±2.35地震荷载④±22.2±30.1±6.7±33.8±41.36±14.74内力组合1.2×恒载+1.4×活载Nmax,M50.9364.08327.5-22.45-23.7403.58|Mmax|,N50.9364.08327.5-22.45-23.7403.581.2×恒载+1.4×风载Nmax,M45.6469.05303.06-8.452-10.51352.13Nmin,M32.5546.69299.31-27.71-30.48345.55|Mmax|,N45.6469.05303.06-27.21-30.48352.131.2×恒载+0.9×1.4×(活载+风载)Nmax,M55.64101.15326.58-13.55-14.39401.067Nmin,M43.8455.26322.62-30.43-32.37395.15|Mmax|,N55.64101.15326.58-30.43-32.37401.0671.2×(恒载+0.5×活载)+1.3×地震作用Nmax,M73.0298.34383.6824.1331.89391.46Nmin,M15.3020.084303.76-53.61-76.94353.14|Mmax|,N73.0298.34383.6853.61-76.94391.46最不利内力组合Nmax,M73.02101.15383.6824.331.89403.58Nmin,M15.3020.084299.31-53.61-76.94345.55|Mmax|,N73.02101.15383.68-53.61-76.94403.58济南大学毕业设计用纸 层号5层柱号柱B柱C恒载①32.1831.11503.62-13.51-13.43570.1活载②9.8710.27672.61-3.98-3.988.9风荷载③±11.8±14.4±5.49±16.99±16.99±10.48地震荷载④±43.66±53.36±23.6±69.8±69.8±51.56内力组合1.2×恒载+1.4×活载Nmax,M52.4351.72705.9-21.78-21.57808.58|Mmax|,N52.4351.72705.9-21.78-21.57808.581.2×恒载+1.4×风载Nmax,M55.1457.49612.037.577.67698.79Nmin,M22.09617.172596.66-39.99-39.9669.45|Mmax|,N55.1457.49612.03-39.99-39.99698.791.2×恒载+0.9×1.4×(活载+风载)Nmax,M65.9268.4703.130.1810.37809.34Nmin,M36.1832.13688.9-42.63-42.63782.93|Mmax|,N65.9268.4703.13-42.63-42.63809.341.2×(恒载+0.5×活载)+1.3×地震作用Nmax,M101.29112.86678.5972.1472.28801.49Nmin,M-12.218-25.88617.23-109.34-109.3670.4|Mmax|,N101.29112.86678.59-109.34-109.3801.49最不利内力组合Nmax,M101.29112.86705.972.1472.28809.34Nmin,M-12.218-25.88596.66-109.34-109.3669.4|Mmax|,N101.29112.86705.9-109.34-109.3809.34济南大学毕业设计用纸 层号4层柱号柱B柱C恒载①32.1832.18756.3-13.51-13.51850.5活载②9.879.87141-3.98-3.98177.7风荷载③±19.2±21.2±12.89±29.1±29.1±26.98地震荷载④±63.41±70.1±49.56±96.1±96.1±111.62内力组合1.2×恒载+1.4×活载Nmax,M52.4352.431104.9-21.78-21.781176.98|Mmax|,N52.4352.431104.9-21.78-21.781176.981.2×恒载+1.4×风载Nmax,M65.4968.29925.624.5324.531058.4Nmin,M-11.748.94889.5-56.95-56.95982.53|Mmax|,N65.4968.29925.2-56.95-56.951058.41.2×恒载+0.9×1.4×(活载+风载)Nmax,M75.2477.761101.415.4415.441178.49Nmin,M26.8624.341068.9-57.89-57.891110.50|Mmax|,N75.2477.761101.4-57.89-57.891178.491.2×(恒载+0.5×活载)+1.3×地震作用Nmax,M126.9135.671056.5103.94103.941272.32Nmin,M-37.89-46.59927.7-135.91-135.918982.11|Mmax|,N126.9135.671056.4-135.91-135.91272.32最不利内力组合Nmax,M126.9135.671104.96103.94103.941272.326Nmin,M-37.89-46.59889.5-135.92-135.9982.11|Mmax|,N126.9135.671104.9-135.92-135.1272.32济南大学毕业设计用纸 层号3层柱号柱B柱C恒载①32.1832.181008.997-13.51-13.511130.7活载②9.879.87209.4-3.87-3.98266.5风荷载③±26.712±26.712±23.4±38.4±38.4±51.48地震荷载④±80.82±80.82±82.56±116.3±116.3±188.75内力组合1.2×恒载+1.4×活载Nmax,M52.452.41403.9-21.63-21.781529.94|Mmax|,N52.452.41403.9-21.63-21.781529.941.2×恒载+1.4×风载Nmax,M76.0176.011243.537.5537.551328.9Nmin,M12.1912.191178.0-69.9-69.91283.93|Mmax|,N76.0176.011243.56-69.9-69.91328.91.2×恒载+0.9×1.4×(活载+风载)Nmax,M84.784.71404.127.2927.291557.49Nmin,M17.3917.391304.1-69.47-69.471427.76|Mmax|,N84.784.71404.12-69.47-69.471557.491.2×(恒载+0.5×活载)+1.3×地震作用Nmax,M141.5141.51443.7132.66132.661562.1Nmin,M-60.5-60.51229.1-159.7-159.71271.36|Mmax|,N141.5141.51443.7-159.7-159.71562.1最不利内力组合Nmax,M141.5141.51443.7132.66132.661562.1Nmin,M-60.5-60.51178.0-159.7-159.71271.36|Mmax|,N141.5141.51443.7-159.7-159.71562.1济南大学毕业设计用纸 层号2层柱号柱B柱C恒载①36.1832.181261.69-14.47-13.511411活载②11.5710.18277.6-4.161-4.25355.24风荷载③±32.9±32.9±36.9±47.4±47.4±82.48地震荷载④±90.4±90.4±121.49±130.5±130.5±277.79内力组合1.2×恒载+1.4×活载Nmax,M59.6152.871702.6-23.19-22.162011.54|Mmax|,N59.6152.871702.6-23.19-22.162011.541.2×恒载+1.4×风载Nmax,M89.4784.671565.648.9950.151808.6Nmin,M-2.64-7.4441462.3-83.72-82.571577.73|Mmax|,N89.4784.671565.69-83.72-82.571808.61.2×恒载+0.9×1.4×(活载+风载)Nmax,M99.4592.891710.337.1238.1572044.72Nmin,M16.549.981617.3-82.33-81.291836.87|Mmax|,N99.4592.891710.3-82.33-81.292044.721.2×(恒载+0.5×活载)+1.3×地震作用Nmax,M167.88167.881738.5149.78150.882110.87Nmin,M-67.16-67.161522.6-189.51-188.41545.2|Mmax|,N167.88167.881738.5-189.51-188.412110.87最不利内力组合Nmax,M167.88167.881738.5149.78150.882110.87Nmin,M-67.16-67.161462.3-189.51-188.41545.2|Mmax|,N167.88167.881738.5-189.5-188.42110.87济南大学毕业设计用纸 层号1层柱号柱B柱C恒载①9.32518.651513.36-3.81-7.6131692.3活载②3.01756.035345.77-1.1-2.2444.0风荷载③±65.4±53.5±56±80.1±65.5±121.88地震荷载④±158.52±129.7±170.18±193.74±158.5±378.95内力组合1.2×恒载+1.4×活载Nmax,M15.4130.832300.1-6.112-12.222452.36|Mmax|,N15.4130.832300.1-6.112-12.222452.361.2×恒载+1.4×风载Nmax,M102.7597.281894.4107.5782.562201.39Nmin,M-80.37-52.521737.6-116.71-100.81860.13|Mmax|,N102.7597.281894.4-116.71-100.82201.391.2×恒载+0.9×1.4×(活载+风载)Nmax,M97.3997.392322.2694.9770.622543.76Nmin,M-67.41-37.432181.1-106.88-93.862236.6|Mmax|,N97.3997.392322.26-106.88-93.862543.761.2×(恒载+0.5×活载)+1.3×地震作用Nmax,M209.47194.611890.4202.26195.62589.79Nmin,M-177.2-129.641465.0-217.72-216.01804.5|Mmax|,N209.47194.612300.1207.26195.62589.76最不利内力组合Nmax,M209.47194.612300.1207.26195.62589.76Nmin,M-177.2-129.641465-217.72-216.01804.5|Mmax|,N209.47194.612300.1-217.72-216.02589.76济南大学毕业设计用纸 5.7截面设计5.7.1内力组合设计值由以上内力组合计算,可得到各层梁柱的最大组合内力设计值,如下表7—1,表7—2所示。表7-1:框架各层梁内力组合设计值123456层(KN·m)-11.25153.03-57.66-18.87-18.21(KN·m)-89.51130.03-91.17-94.13-20.02(KN)133.764.31-142.3783.4527.875层(KN·m)23.72150.82-38.4555.37-13.64(KN·m)-172.7492.99-119.30-133.18-15.76(KN)195.8321.17-149.76116.5269.844层(KN·m)72.18163.47-13.06104.75-13.88(KN·m)-223.5980.28-142.46-197.19-15.623(KN)159.4833.35-92.79158.51111.833层(KN·m)82.95174.215.076117.33-4.58(KN·m)-234.3669.53-160.6-209.77-18.312(KN)168.6442.49-94.62167.8121.142层(KN·m)147.00185.0418.336168.79-13.88(KN·m)168.6442.49-94.62167.8-15.98(KN)176.2350.15-128.47213.04168.961层(KN·m)221.2213.7938.34214.39-15.86(KN·m)-351.0340.37-187.08-311.59-18.73(KN)187.6261.19-150.98241.4194.80济南大学毕业设计用纸 表7—2:框架各层各柱内力组合设计值楼层边柱中柱6层73.02101.15383.6824.331.89403.5815.3020.084299.31-53.6-76.938345.5573.02101.15383.68-53.6-76.938403.585层101.29112.86705.972.1472.28809.34-12.218-25.55596.66-109.34-109.34669.4101.29112.86705.9-109.34-109.34809.344层126.9135.671104.96-103.94-103.941272.326-37.89-46.59889.5-135.92-135.92982.11126.9135.671104.96-135.92-135.921272.3263层141.5141.51443.73132.66132.661562.1-60.5-60.51178.04-159.7-159.71271.36141.5141.51443.73-159.7-159.71562.12层167.88167.881738.53149.78150.882110.87-67.16-67.161462.32-189.51-188.411545.2167.88167.881738.53-189.51-188.412110.871层209.47194.612300.11207.26195.62589.76-177.2-129.641465-217.72-216.051804.5209.47194.612300.11-217.72-216.052589.76济南大学毕业设计用纸 考虑到强柱弱梁(梁端的破坏先于柱端的破坏)、强剪弱弯(弯曲的破坏先于剪切破坏)、强节点弱构件(构件的破坏先于节点的破坏)的抗震设计要求,应对以上最大内力组合设计值进行调整。框架柱上下端的截面弯矩设计值按下式计算:且不应小于由公式算得的值根据结构的底层,柱下端截面组合的弯矩设计值,应承以增大系数1.15。(注:其中,为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,为节点左右梁端截面逆时针或顺时针方向组合的弯矩设计值之和,节点左右梁端均为负弯矩时绝对值较小的弯矩取0。)梁端剪力设计值按下式计算/㏑+且不应小于由公式算得的值。其中,㏑—梁的净跨——梁在重力代表值作用下,按简支梁分析的梁端截面剪力设计值。,——分别在梁左右端逆时针或顺时针方向组合的弯矩设计值。当两端弯矩均为负弯矩时,绝对值较小一端的弯矩取0。框架柱剪力设计值=1.1(+)/且不应小于由公式算得的值其中,——柱的净高,——分别为柱的上下端顺时针或逆时针方向截面组合的弯矩设计值由上述规定调整后各层梁,柱的内力设计值如表6—3,表6—4,表6—5所示。济南大学毕业设计用纸 表7—3:调整后的框架各层梁内力组合值截面123456层(KN·m)-11.25153.03-57.66-18.87-18.21(KN·m)-89.51130.03-91.17-94.13-20.02(KN)133.764.31-142.3783.4527.875层(KN·m)23.72150.82-38.4555.37-13.64(KN·m)-172.7492.99-119.30-133.18-15.76(KN)195.8321.17-149.76116.5269.844层(KN·m)72.18163.47-13.06104.75-13.88(KN·m)-223.5980.28-142.46-197.19-15.623(KN)159.4833.35-92.79158.51111.833层(KN·m)82.95174.215.076117.33-4.58(KN·m)-234.3669.53-160.6-209.77-18.312(KN)168.6442.49-94.62167.8121.142层(KN·m)147.00185.0418.336168.79-13.88(KN·m)168.6442.49-94.62167.8-15.98(KN)176.2350.15-128.47213.04168.961层(KN·m)221.2213.7938.34214.39-15.86(KN·m)-351.0340.37-187.08-311.59-18.73(KN)187.6261.19-150.98241.4194.80济南大学毕业设计用纸 表7—4:调整后的框架各层柱内力组合设计值楼层边柱中柱6层73.02101.15383.6824.331.89403.5815.3020.084299.31-53.6-76.938345.5573.02101.15383.68-53.6-76.938403.585层101.29112.86705.972.1472.28809.34-12.218-25.55596.66-109.34-109.34669.4101.29112.86705.9-109.34-109.34809.344层126.9135.671104.96-103.94-103.941272.326-37.89-46.59889.5-135.92-135.92982.11126.9135.671104.96-135.92-135.921272.3263层141.5141.51443.73132.66132.661562.1-60.5-60.51178.04-159.7-159.71271.36141.5141.51443.73-159.7-159.71562.12层167.88167.881738.53149.78150.882110.87-67.16-67.161462.32-189.51-188.411545.2167.88167.881738.53-189.51-188.412110.871层240.89194.612300.11238.35195.62589.76-203.78-129.641465-250.38-216.051804.5240.89194.612300.11-250.38-216.052589.76济南大学毕业设计用纸 表7-5调整后的框架各层剪力组合设计值楼层左柱剪力(kN)中柱剪力(kN)6层53.22-39.895层65.43-66.824层80.23-83.0613层86.47-97.62层102.59115.481层97.37104.285.7.2梁截面设计梁正截面受弯承载力计算本设计为现浇框架结构,楼梯与现浇注在一起形成T形截面梁。当承受负弯矩时,翼缘(板)受拉,由于混凝土在极限承载力状态下是带裂缝工作,其抗拉承载力极小,尽管翼缘面积较大,但仍按梁宽为b的矩形截面计算;当承受正弯矩时,翼缘受压,须按T形截面计算,翼缘计算宽度按《混凝土设计规范》规定,本设计中应取为。受弯构件正截面承载力抗震调整系数为0.75。单筋矩形截面受弯承载力计算:计算截面抵抗矩系数:=计算相对受压区高度:如果大于相对界线受压区高度,则不能按单筋截面设计,应设计成双筋梁。单筋矩形截面配筋计算:=T形截面受弯承载力计算过程:确定T形截面的类型:若弯矩≤,则为T形截面第一种类型,中和轴在翼缘内,此类T形截面可看作是梁宽为济南大学毕业设计用纸 的矩形截面进行设计,过程单筋矩形截面受弯承载力计算;若>,则为T形截面第二种类型,中和轴在腹板内。如为第一类T形截面,应按截面尺寸的单筋矩形截面梁计算。如为第二类T形截面,则=,如≤,得=如>,说明梁的截面尺寸不够,应加大截面尺寸,或改用双筋T形截面来计算。截面设计结构必须满足条件:a:x≤b:≥因梁的混凝土等级C30和Ⅱ级钢HRB335查表可得,=0.550,不应小于0.2和=0.45=0.214%中较大者,取0.214%。济南大学毕业设计用纸 表7—6:梁正截面设计计算(截面类型:1—矩形单筋截面;2—T形第一类截面;3—T形第二类截面)楼层控制截面弯矩弯矩设计值截面类型计算配筋配筋实际配筋6层1020002Φ16402-89.510.04120.0412507.732Φ185092153.0220.01650.0166922.23Φ209413020002Φ16402-91.1710.06890.0716567.83Φ166034020002Φ16402-94.1310.07120.0739587.13Φ166035-20.0210.01520.0153121.22Φ164025层123.7220.00260.0026142.653Φ20941-172.7410.1310.1411115.94Φ2012562150.8220.01630.0164911.13Φ209413020003Φ20941-119.30410.09020.0947752.1853Φ20941455.3720.00590.0947752.1853Φ20941-133.1810.100.106844.83Φ209415-15.7610.01190.011994.43Φ20941济南大学毕业设计用纸 4层172.1820.00780.0078435.24Φ181017-223.5910.1690.1861481.14Φ2215202163.4720.01760.0178990.64Φ1810173020004Φ181017-142.4610.1070.114907.54Φ2215204104.7520.0110.0113632.74Φ181017-197.1910.1490.16212894Φ2215205-15.62310.01180.0118994.44Φ1810173层182.9520.00890.0089496.74Φ181017-234.3610.1770.1961561.14Φ2215202174.2120.01880.0191056.354Φ18101735.07620.00050.000530.54Φ181017-160.610.1210.1291031.64Φ2215204117.3320.01260.0127709.24Φ181017-209.7710.1580.1731379.84Φ2215205-18.31210.01380.0139110.754Φ1810172层1147.0020.01580.01608903Φ221140-298.1710.2250.2592057.54Φ22+2Φ2021482185.0420.020.021122.73Φ221140318.33620.00190.0019110.232Φ16420-174.16810.1310.14111263Φ221140济南大学毕业设计用纸 4168.7920.0180.01841023.13Φ221140-270.8810.2050.2311840.24Φ2017655-15.9810.0120.01296.562Φ164201层1221.220.02390.02421344.84Φ221520-351.0310.2650.31523024Φ22+2Φ2222812213.7920.02310.023312994Φ221520338.3420.00410.0041230.752Φ16420-187.0810.1410.1531216.84Φ2012564214.3920.02310.02341302.94Φ221520-311.5910.2350.2732167.34Φ22+2Φ2222815-18.7310.0140.014113.32Φ16420梁截面受弯承载力计算在本结构中,梁主要受均布荷载作用,在斜截面受弯承载力设计时不弯起纵筋而只配箍筋。构件斜截面抗震调整系数为0.85。斜截面受剪承载力计算过程验算截面尺寸,由截面腹板高度和截面的宽度b之比/b判断梁类型,本设计中的梁/b=545/300=1.8<4,/b=245/200=1.225<4,为厚腹梁,故选用公式V≤0.25,验算截面尺寸。验算是否需要计算箍筋,若素混凝土抗剪承载力0.7〉梁的剪力设计值,则只需按构造配筋;否则需要计算配置箍筋。由=0.7+1.25计算出箍筋用量。因梁的混凝土等级C30和Ⅰ级钢HPB23535查表可得,=0.550,不应小于0.2和济南大学毕业设计用纸 =0.163%中较大者,取0.2%。梁斜截面受剪承载力计算过程如下表7—7所列。表7—7:梁斜截面设计计算楼层控制截面剪力设计值0.250.7计算配箍实际配筋6左跨133.76595.24166.670Ф8@200右跨83.45595.24166.670Ф8@2005左跨195.83595.24166.670.200Ф8@200右跨116.52595.24166.670Ф8@2004左跨159.48595.24166.670Ф8@200右跨168.64595.24166.670Ф8@2003左跨168.64595.24166.670.0135Ф8@200右跨167.8595.24166.670.00775Ф8@2002左跨176.23595.24166.670.065Ф8@200右跨213.04595.24166.670.318Ф8@2001左跨187.62595.24166.670.1438Ф8@200右跨241.4595.24166.670.5171Ф8@2005.7.3柱截面设计柱正截面受压承载力计算。柱混凝土等级采用C50,柱内对称配筋,钢筋型号采用HRB400.本设计中偏心受压柱正截面承载力设计时采用对称配筋,偏心受压柱正截面承载力抗震调整系数为0.8,柱正截面受压承载力计算过程:计算出偏心距增大系数=1+,附加偏心距:取偏心方向截面尺寸的l/30和20mm中的较大值,本设计中各柱截面相同,经比较取为20mm。济南大学毕业设计用纸 对于现浇框架底层柱=1.0H,其余各层柱取=1.25H(根据《混凝土结构设计规范》查得)。或,其中〉1时,取=1,偏心受压构件长细比对截面曲率的影响系数:当10/h〈15时,取=1,当10/h=15~30时,根据=1.15-0.01/h而求得。进行界面偏心类型确定计算柱截面相对受压区高度:=当〈时,按大偏心受压构件计算;当〉时,则认为受压钢筋达不到受拉屈服强度,而属于“受压破坏”情况,此时应按小偏心受压构件计算。确定纵向受力钢筋大偏心受压受压构件计算:===若计算得的x=〈2,应取x=2,并按下式计算纵向受力钢筋:==小偏心受压构件计算:=e===根据以上的计算方法,柱正截面受压承载力计算如下表6—10。济南大学毕业设计用纸 表6—10:柱正截面设计计算过程楼层6层控制截面左柱中柱M101.1520.084101.1531.8976.93876.938N383.68299.31383.68403.58345.55403.58263.667.1263.679.0222.6190.64202020202020283.687.1283.699.0242.6210.641.00.861.00.951.01.01.01.01.01.01.01.01.121.331.121.321.141.16317.6115.8317.6130.68276.6244.3e472.6270.8472.6285.68431.6399.3x41.531.9541.542.637.2742.6偏心类型大偏心大偏心大偏心大偏心大偏心大偏心0.1170.090.1170.120.1050.12488284488284328.8284488284488284328.8284配筋形式对称配筋对称配筋配筋2Φ182Φ18实际配筋509×2509×2楼层5层左柱中柱济南大学毕业设计用纸 控制截面M112.8625.88112.8672.28109.34109.34N705.9596.66705.9809.34669.4809.34159.843.37159.889.3163.3135.09202020202020179.863.27179.8109.3183.3155.091.00.681.01.01.01.01.01.01.01.01.01.01.181.361.181.31.181.22212.286.18212.16143.09216.17189.21e367.2241.18367.2297.1371.2344.21x74.5563.974.5587.687187.68偏心类型大偏心大偏心大偏心大偏心大偏心大偏心0.210.180.210.2470.200.247315.4284315.4538320.4284215.4284315.4538320.4284配筋形式对称配筋对称配筋配筋2Φ182Φ182Φ202Φ20实际配筋509×2628×2楼层4层左柱中柱济南大学毕业设计用纸 控制截面M135.6746.59135.67103.94135.92135.92N1104.96889.51104.961272.33982.111272.33122.7852.3122.7881.69138.4106.83202020202020142.7872.3142.78101.69158.4126.831.00.751.00.971.01.01.01.01.01.01.01.01.241.351.241.321.211.26177.097.605177.0134.23191.6159.8e332252.61332289.23346.6314.8x119.2895.85119.3134.9102.95134.9偏心类型大偏心小偏心大偏心大偏心大偏心大偏心0.3360.270.3360.380.290.38370284370284614.3377.3370284370284614.3377.3配筋形式对称配筋对称配筋配筋2Φ182Φ182Φ202Φ20实际配筋509×2628×2楼层3层左柱中柱济南大学毕业设计用纸 控制截面M141.560.5141.5132.66159.7159.7N1443.71178.041443.71562.11271.361562.19851.369884.9125.6102.220202020202011871.36118104.9145.6142.21.00.741.00.991.01.01.01.01.01.01.01.01.281.351.281.311.231.23151.0496.34151.04137.42179.1174.91e306.04251.34306.04292.42334.1329.91x156.2124.25156.2166.85134.9166.85偏心类型大偏心小偏心大偏心大偏心大偏心大偏心0.440.350.440.470.380.47378282378341594866.2378282378341594866.2配筋形式对称配筋对称配筋配筋2Φ182Φ20实际配筋509×2628×2楼层2层左柱中柱济南大学毕业设计用纸 控制截面M167.8867.16167.88149.78189.51189.51N1738.51462.31738.52110.871545.22110.8796.545.996.570.9122.689.78202020202020116.565.9116.990.9142.6109.781.00.71.00.891.01.01.01.01.01.01.01.01.291.361.291.331.231.31150.389.63150.8120.89175.39143.8e305.3244.63305.3275.89330.39298.85x188.15156.2188.15227.2166.8227.2偏心类型小偏心大偏心小偏心小偏心大偏心小偏心0.530.440.530.640.470.648913758911442282144289137589114422821442配筋形式对称配筋对称配筋配筋2Φ18+1Φ202Φ18+1Φ204Φ224Φ22实际配筋903.3×21520×2楼层1层左柱中柱济南大学毕业设计用纸 控制截面M240.89203.78240.89238.35250.38250.38N2300.114652300.12589.761804.52589.06104.7139104.792.03138.7596.7202020202020124.7159124.7112.03158.75116.71.01.01.01.01.01.01.01.01.01.01.01.01.271.211.271.31.211.29158.3192.4158.3145.64192.1150.5e313.3347.4313.4300.64347.1305.5x248.5156.2248.5276.9195.25276.9偏心类型小偏心大偏心小偏心小偏心小偏心小偏心0.700.440.700.780.550.78170997917092011.914512011.9170997917092011.914512011.9配筋形式对称配筋对称配筋配筋4Φ20+2Φ184Φ20+2Φ184Φ22+2Φ204Φ22+2Φ20实际配筋1765×22148×2由于采取对称配筋,故能满足小偏心受压柱:而避免发生反向破坏柱斜截面受剪承载力计算偏心受压构件斜截面受剪承载力的计算公式为:济南大学毕业设计用纸 若满足公式v的要求,则可不进行斜截面受剪承载力的计算,仅需根据构造要求配筋。其中:N为与剪力设计值相应的轴向压力设计值,当N>0.3时,取N=0.3(A为构件的截面面积)。对于现浇混凝土框架,(其中为柱的净高)。当<1时取=1,>3时取=3。偏心受压构件斜截面承载力的计算如表6—11所示。表6-11:偏心受压构件斜截面受剪承载力的计算楼层控制截面柱剪力设计值计算配筋实际配筋6边柱53.22123.05构造配筋Φ8@200中柱38.89123.05构造配筋Φ8@2005边柱65.43123.05构造配筋Φ8@200中柱68.82123.05构造配筋Φ8@2004边柱80.23123.05构造配筋Φ8@200中柱83.061123.05构造配筋Φ8@2003边柱86.47123.05构造配筋Φ8@200中柱97.6123.05构造配筋Φ8@2002边柱102.59123.05构造配筋Φ8@200中柱115.48123.05构造配筋Φ8@2001边柱97.37123.05构造配筋Φ8@200中柱104.38123.05构造配筋Φ8@2006.楼梯设计本设计中采用现浇梁式楼梯。本行政办公楼共六层,首层层高为3.9m,其他层层高均为3.6m,每层布置有3部楼梯,且每部楼梯的设计均相同,因此仅拿出主楼梯来设计并验算配筋。楼梯平面图如图8-1所示。济南大学毕业设计用纸 图6-1楼梯平面图1、基本资料:(1).几何参数:楼梯净跨:ln=3300mm楼梯高度:H=1800mm梯板厚:t=100mm踢步数:n=12(阶)上平台楼梯梁宽度:b1=250mm济南大学毕业设计用纸 下平台楼梯梁宽度:b2=250mm(2).荷载标准值:可变荷载:q=2.50kN/m2面层荷载:qm=1.70kN/m2栏杆荷载:qf=0.20kN/m(3).材料信息:混凝土强度等级:C40fc=19.10N/mm2ft=1.71N/mm2钢筋强度等级:HPB235fy=210.00N/mm22、计算过程:(1).楼梯几何参数:踏步高度:h=0.15m踏步宽度:b=0.30m计算跨度:l0=ln+(b1+b2)/2=3.50m梯段板与水平方向夹角余弦值:cosα=0.878(2).计算最大弯矩:(按两端简支计算)梯段板荷载设计值Pn(D)-恒荷控制=(1.35*((1+h/b)*qm+(t/cosα+h/2)*25+c*20/cosα)+1.40*0.7*q)*B+1.35*qf=(1.35*((1+0.15/0.30)*1.70+(0.10/0.88+0.15/2)*25.00+0.02*20.00/0.88)+1.40*0.70*2.50)*1.00+1.35*0.20=13.15kN/m梯段板荷载设计值Pn(L)-活荷控制=(1.20*((1+h/b)*qm+(t/cosα+h/2)*25+c*20/cosα)+1.40*q)*B+1.20*qf=(1.20*((1+0.15/0.30)*1.70+(0.10/0.88+0.15/2)*25.00+0.02*20.00/0.88)+1.40*2.50*1.00)*1.20+1.20*0.20=13.01kN/m故取一米宽板带荷载设计值Pn=13.15kN/m,左端支座反力:Rl=23.02kN右端支座反力:Rr=23.02kN最大弯矩截面距左支座的距离:Lmax=1.75m,即位于跨中。最大弯矩:Mmax=Pn*l02/8=13.15×3.502/8=20.14kN*m(3).正截面受弯承载力计算:考虑支座嵌固折减后的最大弯矩:Mmax=0.8*Mmax=0.80*20.14=16.11kN*m3、每米宽板带的配筋结果:(1).1号钢筋计算结果(跨中)济南大学毕业设计用纸 计算面积As:1019mm2采用方案:12@100实配面积:1131mm2(2).2号钢筋计算结果(左支座)计算面积As:1019/4=255mm2采用方案:6@100实配面积:283mm2(3).3号钢筋计算结果(右支座)计算面积As:255mm2采用方案:6@100实配面积:283mm2(4).4号钢筋采用:6@250实配面积:113.10mm24、上下平台楼梯梁设计:上下平台楼梯梁的受力情况差不多,截面采用200×400,取相同的配筋。其所受均布力为:q=13.15*1.8+(1.2*3.41*+1.4*2.5)*0.9+0.2*0.40*25=23.67+6.83+2.00=32.50KN*m将其简化为简支,计算长度为l=3.6m,跨中弯矩为:q*l2/8=52.65KN*m考虑支座嵌固折减后的最大弯矩:Mmax=0.8*Mmax=0.80*52.65=42.12kN*m最小配筋率为100%*45ft/fy=100%*45*1.71/300=0.26%。配216,实配As=402mm2配筋率为0.55%。上部配214的二级钢筋。楼梯休息平台下梯柱截面取为200×300,轴力设计值为32.50×1.8=58.5KN*m。选配614。楼梯休息平台取100mm厚,配双层双向8@150钢筋。致谢本次毕业设计历时三个月,经过紧张的工作,已经顺利完成了设计的所有内容。通过这次毕业设计以及两周的毕业实习,系统的复习了四年来所学的几十门专业课程,济南大学毕业设计用纸 《混凝土结构》、《结构力学》、《建筑结构抗震》等,了解了许多施工工艺、施工方法和施工工序,达到了学以致用,融会贯通,在设计时还使自己对建筑结构的设计过程有了更加深刻的认识,形成了一定的设计理念,培养了自己的动手能力;通过毕业设计,不仅完善了自己的知识结构,培养了严谨、求实、认真的学习态度,巩固了所学的专业知识,提高了独立设计的能力,在理论与实践的结合上向前迈了一大步。为毕业以后走上工作岗位奠定了坚实的基础。由于我水平有限,经验不足,在设计中难免有不妥和疏漏之处,敬请各位老师批评指正。在此向辛勤工作的老师以及给与我帮助、支持的指导老师表示衷心的感谢!附:参考文献[1]中华人民共和国国家标准建筑制图标准(GB-T50104-2001)[S]济南大学毕业设计用纸 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