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'2014届土木工程专业毕业设计重庆三峡学院毕业设计(论文)题目:万州某小学多层框架结构教学楼设计专业:土木工程专业年级:2010级3班学号:201012044345姓名:韦存明指导老师:郝敏职称:教授完成毕业设计(论文)时间:2014年5月
2014届土木工程专业毕业设计题目:万州区某小学多层框架结构教学楼设计1摘要1引言2建筑方案设计21.1工程概况21.1.1建筑设计指标21.1.2建筑设计思路21.2建筑构造设计21.2.1非上人屋面构造设计21.2.2楼面构造设计31.2.3外墙体构造设计3荷载计算32.1截面尺寸的选取32.1.1截面尺寸选取32.2荷载汇集42.2.1恒载42.2.2活荷载52.3计算简图及层数划分如图52.4各层重力荷载代表值计算6水平荷载作用下的框架内力分析73.1层间侧移刚度计算73.1.1梁线刚度83.1.2柱线刚度83.1.3柱的侧移刚度D83.1.4层间侧移刚度的计算93.2横向风荷载计算93.2.1风荷载计算93.2.2风荷载作用分布图103.3风荷载作用下框架柱剪力和柱弯矩(D值法)103.4风荷载作用下梁端弯矩计算113.5风荷载作用下的梁端剪力和柱轴力标准值113.6风荷载作用下的框架内力图12竖向荷载作用下的内力分析134.1恒载134.1.1屋面梁上线荷载标准值134.1.2屋面板及楼面板的折减系数134.1.3屋面梁上线荷载标准值134.1.4楼面梁上线荷载标准值134.2活载134.3框架计算简图134.4梁固端弯矩144.5内力分配系数计算15
2014届土木工程专业毕业设计4.6弯矩分配与传递154.6.1恒载作用下的力矩分配154.6.2活载作用下的力矩分配174.6.3重力荷载作用下的力矩分配184.6.4恒荷载作用下的弯矩图194.6.5活荷载作用下弯矩图214.6.6重力荷载作用下的弯矩图214.7梁端剪力234.8柱轴力和剪力25内力组合265.1竖向荷载作用下梁端弯矩的调幅265.2控制截面及其内力组合275.2.1控制截面285.2.2竖向荷载作用下梁控制截面处剪力285.2.3梁控制截面处弯矩295.3基本组合公式305.3.1框架梁内力组合305.3.2框架柱内力组合35楼梯计算376.1设计资料376.1.1结构形式和材料强度等级376.1.2梯段斜板TB1386.1.3平台板TB2396.1.4平台梁TB2406.1.5平台梁PL2416.1.6平台梁LP142基础设计447.1地基承载力特征值和基础材料447.1.1本工程地质情况447.1.2确定地基承载力特征值447.2基础顶面内力组合457.2.1标准组合457.2.2基本组合(1.35×标准组合)457.3取第一组轴力最大来确定柱1基础底面尺寸bXL457.3.1考虑偏心作用457.3.2持力层承载力验算:(用标准组合)467.4基础高度确定及底面配筋计算467.4.1基础高度验算467.4.2基础配筋计算487.5基础尺寸及配筋验算497.5.1取第二组数据497.5.2取第三组数据51结论55
2014届土木工程专业毕业设计致谢55参考文献56
2014届土木工程专业毕业设计题目:万州区某小学多层框架结构教学楼设计作者:韦存明作者单位:重庆三峡学院土木工程系土木工程专业2010级重庆万州404000摘要本工程是重庆万州区某小学教学楼,结构形式为多层钢筋混凝土框架结构,共五层,底层层高3.6米,其他层层高也为3.6米,建筑物总高度为19.2米。在遵循“适用、安全、经济、美观”的设计原则和国家有关现行建筑结构设计规范与标准的基础上,进行了教学楼的建筑与结构初步设计,在参阅该建筑物初步设计阶段的建筑CAD设计图纸与技术指标后,确定了结构布置方案与结构计算模型。先进行了层间荷载代表值的计算,然后按底部剪力法计算水平地震荷载作用下大小,进而求出在水平荷载作用下的结构内力(弯矩、剪力、轴力)。接着计算竖向荷载(恒载、活荷载以及雪荷载)作用下的结构内力,找出最不利的一组或几组内力组合。选取最安全的结果计算配筋并绘图。此外还进行了结构方案中的室内楼梯的设计(完成了平台板,梯段板,平台梁等构件的内力和配筋计算)、楼盖的设计(完成了板的配筋和主梁的配筋)。关键词:教学楼钢筋混凝土框架结构设计Abstract ThisprojectisWanzhouAreawithprimaryschoolteachingbuilding,multi-storeystructureintheformofreinforcedconcreteframestructure,atotaloffive,thebottomstorey3.6meters,otherlayerstoohighof3.6metersandatotalbuildingheightof19.2meters.Infollow"applicable,security,economic,aesthetic"designprinciplesandbasicdesignofbuildingstructuresonexistingnationalnormsandstandardsontheconductofthepreliminarydesignofthebuildingandconstructionofschoolbuildings,seethebuildinginthepreliminarydesignphaseofarchitecturalCADdesigndrawingsandtechnicalspecifications,theprogramdeterminesthestructuralarrangementandstructurecalculationmodel.Firstinterlayerloadswerecalculatedrepresentativevalue,andthenpressthebottomoftheshearmethodtocalculatethesizeofhorizontalseismicload,andthenfindthestructureunderhorizontalloadsinternalforces(bendingmoment,shear,axialforce).Thencalculatetheverticalload(deadload,liveloadandsnowload)structureforcesundertheactionofagrouptoidentifythemostunfavorablecombinationofinternalforcesorgroups.Theresultofthecalculationtoselectthemostsecureandreinforcementdrawings.Inaddition,thestructureoftheprogramweredesignedinteriorstairs(completeplatformboards,internalforcesandreinforcementbenchboards,beamsandothercomponentsofthecomputingplatform),floor第53页共59页
2014届土木工程专业毕业设计design(completereinforcementplatesandgirderswithtendons).Keywords:teachingbuildingreinforcedconcreteframestructuredesign.引言毕业设计是大学学校教学计划的最后一个重要环节,是学生综合素质与工程实践能力培养效果的全面检验。毕业设计的目的是培养学生综合应用所学基础课、技术基础课、专业课知识和相应技能,解决土木工程设计问题的综合能力和创新能力,提高学生的综合素质和分析、处理问题的能力。我的毕业设计题目为《万州某小学教学楼结构设计》。在进行建筑方案设计前,我温习了《房屋建筑学》、《结构力学》、《钢筋混凝土结构设计原理》、等专业课程,并且阅读《混凝土规范》、《荷载规范》、《中小学教学楼设计规范》等相关规范。在这次设计中,我尽量全面综合运用所学的基本理论、专业知识和基本技能以及实习时所见所闻的积累,进行建筑,、结构设计并绘制施工图纸。特别是在设计期间,得到了老师的热情指导和审批及指正,在毕业设计后期,主要进行设计手稿的电脑输入,使我圆满的完成了毕业设计任务,在此表示衷心的感谢。毕业设计的四个月里,在指导老师的热情帮助下,经过资料查阅、设计计算、计算说明撰写以及外文的翻译,加深了对新规范、规程、手册等相关内容的理解。巩固了专业知识、提高了综合分析、解决问题的能力。熟练掌握了AutoCAD、天正等绘图软件,从而从不同方面达到了毕业设计的目的与要求。框架结构设计的计算工作量很大,并且在计算过程中以手算为主,由于自己的知识结构还不够全面,在设计计算过程中难免有不妥和疏忽之处。希望各位老师给予更正指导。建筑方案设计1.1工程概况1.1.1建筑设计指标本方案建筑地点位于重庆市万州区,占地面积为900平方米,建筑面积为4233.6平方米,20间普通教室,3间实验室,2间计算机房,2间语音教室,;卫生间每层男、女生各1个,其他用房见详图。1.1.2建筑设计思路综合工程各条件,本教学楼采用框架结构体系。框架结构的最大特点是承重构件与围护构件有明确分工,建筑的内外墙处理十分灵活,应用范围很广。根据框架布置方向的不同,框架体系可分为横向布置、纵向布置及纵横双向布置三种。本建筑方案力求创新,在形象上追求现代气息,同时注重在建筑方案经济合理性,考虑到是小学教学楼,小学生比较爱打闹,需要较大的活动空间,再一方面,小学生正处于生长发育阶段,需要经常晒晒太阳,因此设成外廊式。外廊是单边置房,该结构是现在多数小学教学楼常用形式。第53页共59页
2014届土木工程专业毕业设计在教学楼内布置了三步楼梯,在交通上,疏散人流更加方便快捷。1.2建筑构造设计1.2.1非上人屋面构造设计(1)25mm厚1﹕3水泥砂浆(2)40mm厚SBS改性沥青防水卷材(3)20mm厚1:3水泥砂浆找平层(4)1:6水泥焦渣找坡层最薄处30mm厚(5)100mm厚阻燃型聚苯乙烯板保温层(6)120mm厚现浇钢筋混凝土屋面板(7)20mm厚板下混合砂浆抹灰1.2.2楼面构造设计(1)20mm厚水磨石地面(2)20mm厚1:3水泥砂浆结合层(3)120mm厚现浇钢筋混凝土板(4)20mm厚板下混合砂浆抹灰1.2.3外墙体构造设计(1)刮大白(2)20mm厚混合砂浆(3)墙体基层(4)外贴50mm厚阻燃型挤塑聚苯乙烯板(5)20mm厚1:3水泥砂浆(6)刷涂料荷载计算2.1截面尺寸的选取2.1.1截面尺寸选取框架柱:根据轴压比公式初步估定柱截面尺寸:(三级框架)混凝土强度为C30bc=hc=459mm取bc=hc=500×500mm框架梁:由挠度、裂度控制h=(1/12~1/8)Lb=(1/3~1/2)h纵向框架梁截面尺寸:bb×hb=200mm×600mm第53页共59页
2014届土木工程专业毕业设计横向框架梁截面尺寸:bb×hb=250mm×500mm;走廊梁截面尺寸:bb×hb=200mm×600mm楼板:取板厚:h=120mm2.2荷载汇集2.2.1恒载屋面:25mm厚1﹕3水泥砂浆0.025×20=0.5kN/m240mm厚SBS改性沥青防水卷材0.04×2.0=0.08kN/m220mm厚1:3水泥砂浆找平层0.02×20=0.4kN/m21:6水泥焦渣找坡层最薄处30mm厚0.09×14=1.26kN/m2100mm厚阻燃型聚苯乙烯板保温层[6]0.1×1.5=0.15kN/m2120mm厚现浇钢筋混凝土屋面板0.12×25=3kN/m220mm厚混合砂浆抹灰0.02×17=0.34kN/m2∑=5.73kN/m2楼面:20mm厚水磨石地面0.65kN/m220mm厚1:3水泥砂浆结合层0.02×20=0.4kN/m2120mm厚现浇钢筋混凝土板3kN/m220mm厚板下混合砂浆抹灰0.34kN/m2∑=4.39kN/m2梁重:纵梁:梁自重:0.20×0.6×25=3.00kN/m粉刷:0.02×(0.6-0.12)×2×17=0.33kN/m∑=3.33kN/m横梁:自重:0.25×0.5×25=3.13kN/m粉刷:0.02×(0.5-0.12)×2×17=0.23kN/m∑=3.36kN/m次梁:自重:0.25×0.6×25=3.75kN/m走廊横梁:自重:0.20×0.6×25=3.0kN/m粉刷:0.02×(0.6-0.12)×2×17=0.33kN/m∑=3.33kN/m墙重:1×E~G轴∶0.24×3×19+0.04×17×3=15.72kN/m1×D~E轴:[(0.24×1.9×3—0.24×1.8×1.8)×19+0.04×17×1.9×3+0.45×1.8×1.8]÷1.9=8.71kN/m3×E~G轴:0.2×3×19+0.04×17×3=13.44kN/m1~2×G轴:[(0.24×3.7×3-0.24×3.3×1.8)×19+0.04×17×(3.7×3—3.3×1.8)+3.3×1.8×0.45]÷3.7=8.03kN/m1~2×E轴:[0.24×3.7×3-0.24×(1.8×1.8+1×2.1)]×19+0.04×(3.7×3-1.8×1.8-1×2.1)×17+0.2×1×2.1+045×1.8×1.8]÷3.7=8.59kN/m第53页共59页
2014届土木工程专业毕业设计走廊栏杆:0.24×1.2×19+0.04×17×1.3=6.36kN/m屋面女儿墙:0.12×1×0.6×25+0.1×1×1.7×25=6.05kN/m柱:(考虑到柱子抹灰,取柱子自重27kN/m3)0.5×0.5×27=6.75kN/m门、窗:门:0.2kN/m2窗:0.45kN/m22.2.2活荷载风压:0.55kN/m2雪压:0.5kN/m2厕所:2.0kN/m2办公室(教室):2.0kN/m2走廊、楼梯:2.5kN/m2不上人屋面:0.5kN/m22.3计算简图及层数划分如图图1计算简图第53页共59页
2014届土木工程专业毕业设计图2框架简图2.4各层重力荷载代表值计算第五层的重力荷载代表值:五层女儿墙:(75.6×2+16.8×2+7.2×4)×0.24×1.2×19=1164.44kN屋面:[(75.6+1.6)×(9.6+0.8)+(7.2+0.8)×(4.2+1.6)×2+(8.4+1.6)×(7.2+0.8)]×5.73=5590.65kN纵梁:9.6×3.33×17+7.2×3.36×7+9.6×3.36×2=777.31kN横梁:75.6×3.36+16.8×3.36+75.6×3.33×2=813.96kN次梁:4.2×3.33×5=69.93kN柱子:3.6×6.75×58=1409.4kN外墙:15.72×14.4×4+8.71×2.4×2+8.03×92.4=1689.25kN内纵墙:13.44×7.2×12=1161.22kN栏杆墙:6.36×75.6=480.82kN∑=13156.98KN2~4层的重力荷载代表值:二~四层楼面:(75.6×9.6+7.2×4.2×2+8.4×7.2)×4.39=3717.10KN纵梁:9.6×3.33×17+7.2×3.36×7+9.6×3.36×2=777.31kN横梁:75.6×3.36+16.8×3.36+75.6×3.33×2=813.96kN次梁:4.2×3.33×5=69.93kN柱子:3.6×6.75×58=1409.4kN外墙:15.72×14.4×4+8.71×2.4×2+8.03×92.4=1689.25kN内纵墙:13.44×7.2×12=1161.22kN栏杆墙:6.36×75.6=480.82kN∑=10118.98kN一层第53页共59页
2014届土木工程专业毕业设计楼面:(75.6×9.6+7.2×4.2×2+8.4×7.2)×4.39+10×8×5.73+6.36×22.8+1.6×7.2×0.12×25=4355.07KN纵梁:9.6×3.33×17+7.2×3.36×7+9.6×3.36×2=777.31kN横梁:75.6×3.36+16.8×3.36+75.6×3.33×2=813.96kN次梁:4.2×3.33×5=69.93kN柱子:3.6×6.75×58=1409.4kN外墙:15.72×14.4×4+8.71×2.4×2+8.03×92.4=1689.25kN内纵墙:13.44×7.2×12=1161.22kN栏杆墙:6.36×75.6=480.82kN∑=10756.96kN则恒载+0.5活载:=6651.25+0.5×0.5×42×15=6808.75kN1411.44+5939.68+0.5×[2.0×(6.0×6.3×13+5.4×6.3)+2.5×2.4×6.3+2.5×2.4×42]=7615.77kN1411.44+5939.68+0.5×[2.0×(6.0×6.3×13+5.4×6.3)+2.5×2.4×6.3+2.5×2.4×42]=7615.77kN1411.44+5939.68+0.5×[2.0×(6.0×6.3×13+5.4×6.3)+2.5×2.4×6.3+2.5×2.4×42]=7615.77kN1411.44+5581.75+664.65=7657.84kN水平荷载作用下的框架内力分析3.1层间侧移刚度计算3.1.1梁线刚度在计算梁线刚度时,考虑楼板对梁刚度的有利影响,即板作为翼缘工作。在工程上,为简化计算,通常梁均先按矩形截面计算某惯性矩I0,然后乘以增大系数:中框架梁I=2.0I0边框架梁I=1.5I0梁采用C30混凝土,EC=3.0×107kN/m2(m4)(3-1)KB单位:kNm横向框架:表1框架梁线刚度计算截面截面边框架中框架第53页共59页
2014届土木工程专业毕业设计部位m2跨度m惯性矩I=1.5I0KB=EI/LI=2.0I0KB=EI/L边跨0.25×0.57.22.6×103.9×101.1×105.2×102.2×10中跨0.25×0.52.42.6×103.9×101.1×105.2×102.2×103.1.2柱线刚度柱采用C30混凝土Ec=3.0×107kN/M2,首层高度3.6m,2-5层3.6m。柱截面:500mm×500mm则I1-4=I0==5.2×10-3m4(3-2)表2柱的线刚度计算层次层高b×hEc/KN/M2Ic(m4)Kc=2-53.6m500×5003.0×105.2×104.3×1014.55m500×5003.0×105.2×104.3×103.1.3柱的侧移刚度D一般层:=D=(3-3)首层:=D=(3-4)表3边框架柱子的侧移刚度部位层高M柱子刚度边跨梁线刚度中跨梁线刚度边框架边柱C1(4根)边框架中柱C2(4根)K1α1DC1K2α2DC2第53页共59页
2014届土木工程专业毕业设计2-53.64300022000250000.7670.277110291.3490.4031603713.64300022000250000.9710.49597551.7060.59511726表4中框架柱子的侧移刚度部位层高M柱子刚度边跨梁线刚中跨梁a线刚中框架边柱C1(14根)中框架中柱C2(14根)K1α1DC3K2α2DC42-53.64300011000220001.0000.333132581.7670.4691867313.64300011000220001.2650.541106622.2350.646127313.1.4层间侧移刚度的计算表5层间侧移刚度部位各层柱子侧移刚度层间刚度∑DC1∑DC2∑DC3∑DC4∑Di2-5441166414815909622407649143613902046906127944152772366642∑D1/∑D2=0.77﹥0.7满足要求3.2横向风荷载计算3.2.1风荷载计算自然情况:地区基本风压W0=0.55kN/m2,地面粗糙程度B类。风荷载标准值:(3-19)表15风荷载作用下的剪力层βZμSμZiW0WkiFWkiVi51.01.30.830.550.5939.609.6140.740.52911.4321.0430.740.52911.4332.4720.740.52911.4343.9010.740.52911.4355.33注:(1)在实际工程中,对于高度不大于30M,高宽比小于1.5的高层建筑,取风振系数βZ=1.0。(2)(3-20)3.2.2风荷载作用分布图第53页共59页
2014届土木工程专业毕业设计图5风荷载作用分布图3.3风荷载作用下框架柱剪力和柱弯矩(D值法)表16边柱(中框)层H(m)∑Di(kN/m)D(kN/m)D/∑DiVi(kN)Vik(kN)YM下(kNm)M上(kNm)53.663862132580.2089.612.001.262.524.6843.663862132580.20821.044.381.627.108.6733.663862132580.20832.476.751.6210.9313.3723.663862132580.20843.909.131.8016.4316.4313.646786106620.22955.3312.672.9637.5020.15表17中柱(中框)层H(m)∑Di(kN/m)D(kN/m)D/∑DiVi(kN)Vik(kN)YM下(kNm)M上(kNm)53.663862186730.2929.612.811.403.936.1843.663862186730.29221.046.141.629.9512.1633.663862186730.29232.479.481.7616.6817.4423.663862186730.29243.9012.821.8030.0830.0813.646786127310.27255.3315.102.8743.3425.37第53页共59页
2014届土木工程专业毕业设计3.4风荷载作用下梁端弯矩计算表18风荷载作用下梁端弯矩层A轴B轴MC上MC下µB1MABMC上MC下µB1µB2MBAMBC50.004.6814.680.006.180.570.433.522.6642.528.67111.193.9312.160.570.436.935.2337.1013.37120.479.9517.440.570.439.947.50210.9316.43127.3616.6830.080.570.4317.1512.93116.4320.15136.5830.0825.370.570.4314.4610.913.5风荷载作用下的梁端剪力和柱轴力标准值表19风荷载作用下的梁端剪力和柱轴力层AB跨梁端剪力BC跨梁端剪力柱轴力LL边柱(KN)中柱(KN)57.24.683.522.002.42.662.662.222.000.2247.211.196.932.862.45.235.234.364.881.7037.220.479.944.832.47.507.506.259.713.1227.227.3617.157.072.412.9312.9310.7816.786.8317.236.5814.468.102.410.9110.919.0924.887.82第53页共59页
2014届土木工程专业毕业设计3.6风荷载作用下的框架内力图图6风荷载作用下的框架内力图竖向荷载作用下的内力分析4.1恒载第53页共59页
2014届土木工程专业毕业设计4.1.1屋面梁上线荷载标准值梁重:横梁:边跨4.08kN/m,中跨2.69kN/m屋面板荷载:(按双向板计算)4.1.2屋面板及楼面板的折减系数边跨为梯形荷载:中跨为梯形荷载:5/8=0.6254.1.3屋面梁上线荷载标准值边跨:g1=5.73×3.0×0.90+4.08=19.55kN/m中跨:g2=5.73×2.4×0.625+2.69=11.29kN/m4.1.4楼面梁上线荷载标准值边跨:g1=4.39×3.0×0.90+4.08=15.93kN/m中跨:g2=4.39×2.4×0.625+2.69=9.28kN/m4.2活载屋面:边跨q1=0.5×3.0×0.90=1.35kN/m中跨q2=0.5×2.4×0.625=0.75kN/m楼面:边跨q1=2.0×3.0×0.90=10.96kN/m中跨q2=2.5×3.0×0.625=4.69kN/m4.3框架计算简图图8框架计算简图4.4梁固端弯矩梁端弯矩以绕杆端顺时针为正,反之为负M固=(4-1)表20竖向荷载作用下框架的固端弯矩第53页共59页
2014届土木工程专业毕业设计荷载部位边跨中跨跨度均布荷载固端弯矩跨度均布荷载固端弯矩左右左右恒载顶层7.219.55-64.4464.662.411.29-5.425.42其他层7.215.93-52.6952.692.49.28-4.454.45活载顶层7.21.35-4.474.472.40.75-0.360.36其他层7.25.40-17.8617.862.43.75-1.801.804.5内力分配系数计算表21转动刚度S及相对转动刚度计算构件名称转动刚度S(KNm)相对转动刚度框架梁边跨1.00中跨0.38框架柱顶层1.00一般层1.00底层分配系数计算:(4-2)表22各杆件分配系数表第53页共59页
2014届土木工程专业毕业设计节点层()()边节点51.00+1.00=2.00-----0.50-----0.5041.00+1.00+1.00=3.00-----0.340.330.3331.00+1.00+1.00=3.00-----0.340.330.3321.00+1.00+1.00=3.00-----0.340.330.3311.00+0.79+1.00=2.79-----0.360.360.28中间节点51.00+1.00+0.38=2.380.420.16-----0.4241.00+1.00+1.00+0.38=3.380.290.110.300.3031.00+1.00+1.00+0.38=3.380.290.110.300.3021.00+1.00+1.00+0.38=3.380.290.110.300.3011.00+0.79+1.00+0.38=3.170.320.120.320.244.6弯矩分配与传递4.6.1恒载作用下的力矩分配方法:首先将各点的分配系数填在相应方框内,将梁的固端弯矩填写框架横梁相应位置上,然后将节点放松,把各节点不平衡弯矩同时进行分配。假定远端固定进行传递(不向滑动端传递),右(左)梁分配弯矩向左(右)梁传递,上(下)分配弯矩向下(上)柱传递(传递系数均为0.5)。第一次分配弯矩传递后,再进行第二次弯矩分配。第53页共59页
2014届土木工程专业毕业设计图9恒荷载作用下的力矩分配图4.6.2活载作用下的力矩分配第53页共59页
2014届土木工程专业毕业设计图9活荷载作用下的力矩分配4.6.3重力荷载作用下的力矩分配第53页共59页
2014届土木工程专业毕业设计图10重力荷载作用下的力矩分配4.6.4恒荷载作用下的弯矩图第53页共59页
2014届土木工程专业毕业设计图11恒荷载作用下的弯矩图第53页共59页
2014届土木工程专业毕业设计4.6.5活荷载作用下弯矩图图12活荷载作用下的弯矩图4.6.6重力荷载作用下的弯矩图第53页共59页
2014届土木工程专业毕业设计图13重力荷载作用下的弯矩图表23恒载作用下的弯矩楼BC跨CD跨第53页共59页
2014届土木工程专业毕业设计层左端中间右端-左端=右端中间MMMMM5-42.9050.5749.9312.45-4.324-47.4330.0250.9010.48-3.973-45.1131.8949.4611.13-4.452-45.1631.9149.3911.08-4.401-41.3435.3246.3911.53-4.85表24活载作用下的弯矩楼层BC跨CD跨左端中间右端-左端=右端中间MMMMM5-4.142.793.680.370.314-14.7111.4116.052.75-0.053-15.3310.8316.602.580.122-15.4310.0816.552.560.141-14.1412.0415.372.97-0.27表25重力荷载作用下的弯矩楼层BC跨CD跨左端中间右端-左端=右端中间MMMMM5-44.9851.8252.0612.72-4.324-54.7735.4559.2011.86-.3833-52.5437.3057.7212.41--4.832-52.8637.0757.8712.36-4.331-48.4141.2154.0413.69-5.66注:弯矩符号逆时针为正4.7梁端剪力第53页共59页
2014届土木工程专业毕业设计均布荷载下:(4-3)(4-4)V’=V—q×(4-5)表26恒载作用下梁端剪力(BC跨)BC跨梁端剪力层qkN/mLmqL/2(kN)(kN)(kN)(kN)(kN)(kN)519.557.261.581.2260.3662.8055.4757.91415.937.250.190.5549.6450.7445.6646.75315.937.250.190.6949.5050.8845.5246.90215.937.250.190.6749.5250.8645.5446.88115.937.250.190.8019.3950.9945.4147.01表27恒载作用下梁端剪力(CD跨)CD跨梁端剪力层qkN/MLqL/2(kN)(kN)(kN)(kN)(kN)(kN)511.292.413.55013.5513.5510.7310.7549.282.411.14011.1411.149.089.0839.282.411.14011.1411.149.089.0829.282.411.14011.1411.149.089.0819.282.411.14011.1411.149.089.08表28活载作用下梁端剪力(BC跨)BC跨梁端剪力层qkN/mLmqL/2(kN)(kN)(kN)(kN)(kN)(kN)51.357.24.250.074.184.323.843.9845.47.217.010.2116.8017.2215.4515.8735.47.217.010.2016.8117.2115.4615.8625.47.217.010.1816.8317.1915.4815.8415.47.217.010.2016.8117.2115.4615.86第53页共59页
2014届土木工程专业毕业设计表29活载作用下梁端剪力(CD跨)CD跨梁端剪力层q(kN/m)L(m)qL/2(kN)(kN)(kN)(kN)(kN)(kN)50.752.40.900.90.90.710.7143.752.44.504.54.53.563.5633.752.44.504.54.53.563.5623.752.44.504.54.53.563.5613.752.44.504.54.53.563.564.8柱轴力和剪力表30荷载作用下的柱轴力剪力(边柱)(1)边柱(单位:KN)层截面楼屋盖恒荷楼屋盖活荷墙重梁自重柱自重恒荷引起轴力活荷引起轴力恒荷引起剪力活荷引起剪力5顶130.889.4570.7976.1624.3207.049.4519.5462.94底231.344顶82.9737.870.7976.1624.3461.3747.2511.784.43底485.673顶82.9737.870.7976.1624.3644.885.0512.394.23底669.12顶82.9737.870.7976.1624.3899.13122.8513.864.74底923.431顶82.9737.870.7976.1624.31153.43160.654.971.62底1184.17表31荷载作用下的柱轴力剪力(中柱)(2)中柱(单位:KN)层截面楼屋盖恒荷楼屋盖活荷墙重梁自重柱自重恒荷引起轴力活荷引起轴力恒荷引起剪力活荷引起剪力5顶149.5513.0572.4785.9624.3235.5113.0516.882.56第53页共59页
2014届土木工程专业毕业设计底259.814顶114.5852.272.4785.9624.3532.8265.2510.163.99底557.123顶114.5852.272.4785.9624.3830.13117.4510.613.85底854.432顶114.5852.272.4785.9624.31127.44169.6511.624.22底1151.741顶114.5852.272.4785.9624.31424.75221.854.931.78底1455.46内力组合5.1竖向荷载作用下梁端弯矩的调幅由于钢筋混凝土结构具有塑性内力重分布性质,因此在重力荷载作用下对梁端弯矩进行调幅,去调幅系数为0.8。表32梁端弯矩的调幅表层数梁左端MGKMGK,,MQKMQK,,M1MGEBC跨542.9034.324.143.3144.9858.61447.4337.9414.7111.7754.7743.82345.1136.0915.3312.2652.5442.03245.1636.1315.4312.3452.8642.29141.3433.0714.1411.3148.4138.73CD跨512.459.960.370.3012.7210.18410.488.382.752.2011.869.49311.138.902.582.0612.419.93211.088.862.562.0512.369.89111.539.222.972.3813.6910.95表33梁跨中弯矩的调幅表层数梁跨中MGKMGK,,MQKMQK,,M2MGEBC跨550.5759.852.793.5751.8261.52430.0239.8511.4114.4935.4546.85331.8941.3510.8314.0237.3048.36231.9141.3710.8014.0137.0748.14135.3244.0912.0414.9941.4051.65第53页共59页
2014届土木工程专业毕业设计CD跨5-4.32-1.830.310.38-4.32-1.794-3.79-1.69-0.050.50-3.83-1.463-4.45-2.220.120.64-4.83-2.352-4.40-2.180.140.65-4.33-1.661-4.85-2.54-0.270.38-5.66-2.92表34梁端弯矩的调幅表层数梁右端MGKMGK,,MQKMQK,,M3MGEBC跨549.9339.943.682.9452.0640.04450.9040.7216.0512.8459.2047.36349.4639.5716.6013.2857.7246.18249.3939.5716.6513.3257.8746.30146.3937.1115.3712.3054.0443.23CD跨512.459.960.370.3012.7210.18410.488.382.752.2011.869.49311.138.902.582.0612.419.93211.088.862.562.0513.3610.69111.539.222.972.3813.6910.95注:①;(5-1)②=(5-2)(5-3)③;(5-4);(5-5)④5.2控制截面及其内力组合第53页共59页
2014届土木工程专业毕业设计5.2.1控制截面梁:梁端及跨中柱:上下柱端截面5.2.2竖向荷载作用下梁控制截面处剪力表35控制截面处剪力表(梁左端)层b梁左端BC跨50.555.473.8457.2358.6121.6240.545.6615.4553.3943.8230.4930.545.5215.4653.2542.0328.9120.545.5415.4853.2842.2928.9910.545.4115.4653.1438.7325.49CD跨50.510.730.7111.0910.187.2340.59.083.5610.919.496.7630.59.083.5610.919.937.2220.59.083.5610.919.897.1610.59.083.5610.9110.957.70表36控制截面处剪力表(梁右端)层b梁右端BC跨50.557.913.9859.9040.0425.0740.546.7515.8754.6947.3633.6930.546.9015.8654.8346.1832.4720.546.8815.8454.8046.3032.6010.547.0115.8654.9443.2329.50D跨50.510.750.7111.1110.187.4040.59.083.5610.869.496.7830.59.083.5610.869.937.2220.59.083.5610.8610.697.9810.59.083.5610.8610.958.24第53页共59页
2014届土木工程专业毕业设计注:;(5-6)(5-7)5.2.3梁控制截面处弯矩表37梁控制截面处弯矩表(梁左端)层b梁左端BC跨50.534.3255.4720.453.313.842.3540.537.9445.6626.5311.7715.457.9130.536.0945.5224.7112.2615.468.4020.536.1345.5424.7512.3415.488.4710.533.0745.4121.7211.3115.467.45CD跨50.59.9610.737.280.301.710.1240.58.389.086.112.23.561.3130.58.909.086.630.063.561.1720.58.869.086.592.053.561.1610.59.229.086.952.383.561.49表38梁控制截面处弯矩表(梁右端)层b梁右端BC跨50.539.9457.9125.462.943.981.9540.540.7246.7529.0312.8415.878.8730.539.5746.9027.8513.2815.869.3220.539.5146.8827.7913.3215.849.3210.537.1147.0125.3612.3015.868.34CD跨50.59.9610.757.270.300.710.1240.58.389.086.112.203.561.31第53页共59页
2014届土木工程专业毕业设计30.58.909.086.632.063.561.1720.58.869.086.592.053.561.1610.59.229.086.952.383.561.49注:(5-8)(5-9)5.3基本组合公式5.3.1框架梁内力组合(1)梁端负弯矩组合公式:①(5-11)②(5-12)③(5-13)(2)梁端正弯矩组合公式:④(5-14)(3)梁跨中正弯矩组合公式:⑤(5-15)⑥(5-16)⑦(5-17)(4)梁端剪力组合公式:⑧(5-18)⑨(5-19)⑩(5-20)表40梁的内力组合表(边跨5层)位置楼层内力及组合梁左端梁跨中梁右端MK(kN)VK(kN)MK(kN)VK(kN)MK(kN)VK(kN)边跨梁5永久荷载-20.4555.4759.85-1.2225.46-57.91可变荷载-2.353.843.75-0.071.95-3.98重力荷载代表值-21.6257.3961.64-1.2626.44-59.90第53页共59页
2014届土木工程专业毕业设计地震作用左来35.45-10.614.67-10.6126.11-10.61右来-35.4510.61-4.6710.61-26.1110.61-MMAX(梁端)①-27.8671.9432.28-70.06②-29.9178.6536.28-82.08③-54.0362.0049.25-64.25+MMAX(梁端)④18.35-53.395.6334.58+MMAX(跨中)⑤76.82-1.56⑥84.30-1.72⑦60.11-11.47VMAX(梁端)⑧-27.8371.9432.28-70.06⑨-29.9178.6536.28-82.08⑩-61.2370.2655.82-68.74表41梁的内力组合表(边跨4层)位置楼层内力及组合梁左端梁跨中梁右端MK(kN)VK(kN)MK(kN)VK(kN)MK(kN)VK(kN)边跨梁4永久荷载-26.5345.6639.85-0.5529.03-46.75可变荷载-7.9115.4514.49-0.218.87-15.87重力荷载代表值-30.4953.3947.10-0.5633.47-54.69地震作用左来72.08-21.658.97-21.6554.15-21.65右来-72.0821.65-8.9721.65-54.1521.65-MMAX(梁端)①-42.9176.4247.25-78.32②-43.5776.7847.88-78.67③-97.5369.1982.91-70.32+MMAX(梁端)④47.41-61.1527.6919.91+MMAX(跨中)⑤68.11-0.95⑥67.00-0.95⑦51.13-21.70VMAX(梁端)⑧-42.9176.4247.25-78.32⑨-43.5776.7847.88-78.67⑩-110.7578.3893.9879.71-表42梁的内力组合表(边跨3层)位置楼层内力及组合梁左端梁跨中梁右端MK(kN)VK(kN)MK(kN)VK(kN)MK(kN)VK(kN)边跨梁3永久荷载-24.7145.5241.35-0.6927.85-46.90可变荷载-8.415.4614.02-0.209.32-15.86重力荷载代表值-28.9153.2548.36-0.7932.51-54.83地震作用左来114.14-33.7316.33-33.7381.48-33.73右来-114.1433.73-16.3333.73-81.4833.73-MMAX(梁端)①-41.4176.2746.47-78.48②-41.5976.6046.73-78.86③-137.3180.81108.70-82.23第53页共59页
2014届土木工程专业毕业设计+MMAX(梁端)④89.60-72.8255.068.24+MMAX(跨中)⑤69.25-1.11⑥69.56-1.13⑦59.45-33.60VMAX(梁端)⑧-41.4176.2746.47-78.48⑨41.5976.6046.73-78.86⑩-155.6191.59123.20-93.20表43梁的内力组合表(边跨2层)位置楼层内力及组合梁左端梁跨中梁右端MK(kN)VK(kN)MK(kN)VK(kN)MK(kN)VK(kN)边跨梁2永久荷载-24.7545.5441.37-0.6727.79-46.88可变荷载-8.4715.4814.01-0.819.36-15.84重力荷载代表值-28.9953.2848.38-0.7632.47-54.80地震作用左来122.21-39.916.46-39.91109.29-39.91右来-122.2139.91-6.4639.91-109.2939.91-MMAX(梁端)①-41.5676.3246.45-78.43②-41.7176.6546.69-78.81③-145.2486.86135.78-88.23+MMAX(梁端)④97.41-78.8782.212.19+MMAX(跨中)⑤69.26-1.06⑥69.58-1.08⑦49.84-39.59VMAX(梁端)⑧-41.5676.3246.45-78.43⑨-41.7176.6546.69-78.81⑩-164.6197.78148.37-100.00表44梁的内力组合表(边跨1层)位置楼层内力及组合梁左端梁跨中梁右端MK(kN)VK(kN)MK(kN)VK(kN)MK(kN)VK(kN)边跨梁1永久荷载-21.7245.4144.09-0.825.36-47.01可变荷载-7.4515.4614.99-0.28.43-15.86重力荷载代表值-25.4553.1451.59-0.929.58-54.94地震作用左来144.44-44.5615.32-44.56114.05-44.56右来-144.4444.56-15.3244.56-114.0544.56-MMAX(梁端)①-36.4976.1442.11-78.62②-36.6276.4542..41-79.01③-163.7391.27137.78-92.89+MMAX(梁端)④121.74-83.3089.05-2.24+MMAX(跨中)⑤73.89-1.24⑥74.21-1.28第53页共59页
2014届土木工程专业毕业设计⑦61.36-44.26VMAX(梁端)⑧-36.4976.1442.11-78.62⑨-36.6276.4542.41-79.01⑩-185.57103.44156.20-105.28注:角标K表示内力标准值;表45梁的内力组合表(中跨5层)位置楼层内力及组合梁左(右)端梁跨中MK(kN)VK(kN)MK(kN)VK(kN)中跨梁5永久荷载-7.2810.73-1.830.00可变荷载-0.120.710.380.00重力荷载代表值-7.3411.09-1.640.00地震作用左来17.17-18.080.00-18.08右来-17.1718.080.0018.08-MMAX(梁端)①-8.9013.87②-9.9515.18③-23.45127.61+MMAX(梁端)④11.24-25.95+MMAX(跨中)⑤-1.660.00⑥-2.100.00⑦-1.48-17.26VMAX(梁端)⑧-8.9013.87⑨-9.9515.18⑩-26.4631.29表46梁的内力组合表(中跨4层)位置楼层内力及组合梁左(右)端梁跨中MK(kN)VK(kN)MK(kN)VK(Kn)中跨梁4永久荷载-6.119.08-1.690.00可变荷载-1.313.560.500.00重力荷载代表值-6.7610.86-1.440.00地震作用左来38.25-40.270.00-40.27右来-38.2515.880.0040.27-MMAX(梁端)①-9.1715.75②-9.5349.04③-43.38-63.21+MMAX(梁端)④32.22-47.41+MMAX(跨中)⑤-1.330.00⑥-1.790.00⑦-1.3039.26VMAX(梁端)⑧-9.1715.88⑨-9.5315.75第53页共59页
2014届土木工程专业毕业设计⑩-49.1655.58表47梁的内力组合表(中跨3层)位置楼层内力及组合梁左(右)端梁跨中MK(kN)VK(kN)MK(kN)VK(kN)中跨梁3永久荷载-6.639.08-2.220.00可变荷载-1.173.560.640.00重力荷载代表值-7.2210.86-1.900.00地震作用左来53.69-56.520.00-56.52右来-53.6956.520.0056.52-MMAX(梁端)①-9.5915.88②-10.1015.75③-58.8564.88+MMAX(梁端)④46.93-63.25+MMAX(跨中)⑤-1.770.00⑥-2.380.00⑦-1.71-55.12VMAX(梁端)⑧-9.5915.88⑨-10.1015.75⑩-66.6973.53表48梁的内力组合表(中跨2层)位置楼层内力及组合梁左(右)端梁跨中MK(kN)VK(kN)MK(kN)VK(kN)中跨梁2永久荷载-6.599.08-2.180.00可变荷载-1.163.560.650.00重力荷载代表值-7.1610.86-1.850.00地震作用左来71.24-74.980.00-74.98右来-71.2474.980.0074.98-MMAX(梁端)①-9.5315.88②-10.0315.75③-75.9082.88+MMAX(梁端)④64.09-81.26+MMAX(跨中)⑤-1.710.00⑥-2.310.00⑦-1.67-73.01VMAX(梁端)⑧-9.5315.88⑨-10.0315.75第53页共59页
2014届土木工程专业毕业设计⑩-86.0294.48表49梁的内力组合表(中跨1层)位置楼层内力及组合梁左(右)端梁跨中MK(kN)VK(kN)MK(kN)VK(kN)中跨梁1永久荷载-6.959.08-2.540.00可变荷载-1.493.560.380.00重力荷载代表值-7.7010.86-2.730.00地震作用左来74.77-78.700.00-78.70右来-74.7778.700.0078.70-MMAX(梁端)①-10.4315.88②-10.8415.75③-79.8386.51+MMAX(梁端)④67.13-84.88+MMAX(跨中)⑤-2.510.00⑥-3.060.00⑦-2.46-76.73VMAX(梁端)⑧-10.4315.58⑨-10.8415.75⑩-90.4798.045.3.2框架柱内力组合考虑地震作用时:①1.3×地+1.2×(恒+0.5×活)不考虑地震作用时:②γ0(1.35×恒+0.7×1.4×活)③γ0(1.2×恒+1.4×活)表50柱的内力组合表楼层截面位置内力种类内力值组合结果恒载活载代表值地震作用|Mmax|NminNmax左来右来①②③5边柱上端M42.94.1444.98-38.1038.10103.5161.9757.65N207.049.15211.77-10.6110.61267.92288.77261.68V-19.54-2.94-21.0116.28-16.28-46.38-29.26-27.56下端M27.456.4430.66-20.5120.5163.4543.3742.06N231.349.45236.07-10.6110.61279.08321.57290.84V-19.54-2.94-21.0116.28-16.28-46.38-29.26-27.56中柱上端M-37.47-3.32-39.13-50.4550.45112.54-53.84-49.60N235.5113.05242.04-7.477.47300.16330.73300.88V16.682.5617.9622.93-22.9351.3625.3023.6M-23.28-5.88-26.22-32.1032.10-73.20-37.19-36.17第53页共59页
2014届土木工程专业毕业设计下端N259.8113.05266.34-7.477.47329.32363.53328.84V16.882.5617.9622.93-22.9351.3625.3023.844边柱上端M19.988.2724.1-56.9856.98103.0035.0835.55N461.3747.25484.99-32.2632.26623.93669.15619.79V-11.78-4.43-13.9928.78-28.78-54.20-20.24-20.34下端M22.447.6626.27-46.6246.6292.1337.8037.65N485.6747.25509.30-32.2632.26653.10701.96648.95N-11.78-4.43-13.9928.78-28.78-54.20-20.24-20.34中柱上端M-17.41-7.42-21.11-80.2780.27-129.68-30.78-31.28N542.8265.25565.45-26.0926.09712.46783.25730.73V10.163.9912.1640.54-40.5467.2917.6317.78下端M-19.17-69.96-22.65-65.6765.67-112.5532.70-32.75N557.1265.25589.75-26.0926.09741.62816.06759.89V10.163.9912.1640.54-40.5467.2917.6317.783边柱上端M22.447.6626.27-75.9575.95130.2637.8037.65N64.4885.05687.33-65.9965.99910.58953.83892.83V-12.39-4.23-14.5138.36-38.36-67.28-20.87-20.79下端M22.187.5725.96-62.1462.14119.9337.3637.21N669.185.05709.35-65.9965.99937.01986.63921.99V-12.39-4.23-14.5138.36-38.36-67.28-20.87-20.79中柱上端M-19.17-6.96-22.65-92.0692.06-146.86-32.70-32.75N830.13117.45888.86-48.8848.881130.181235.781160.59V10.613.8512.5454.03-54.0385.2918.1018.12下端M-19.04-6.91-22.46-95.0995.09-150.57-32.48-32.52N850.43117.45909.06-48.8848.881154.541263.181184.95V10.613.8512.5454.03-54.0385.2918.1018.12(续表)楼层截面位置内力种类内力值组合结果恒载活载代表值地震作用|Mmax|NminNmax左来右来①②③2边柱上端M22.857.8426.88-70.0570.05123.1938.5338.40N899.13122.85960.56-105.90105.901290.341334.221250.95V-13.86-4.74-16.2340.03-40.03-71.52-23.36-23.27下端M27.069.2431.67-72.0572.05131.6745.5945.41N923.43122.85984.86-105.90105.901319.501367.021280.11V-13.86-4.74-16.2340.03-40.03-71.52-23.36-23.27中柱上端M-19.487.07-22.98-114.16114.06-175.98-33.23-33.27第53页共59页
2014届土木工程专业毕业设计N1127.44169.651212.27-83.9583.951563.861688.301590.44V16.624.2218.7363.42-63.42104.9226.5725.85下端M-22.36-8.12-26.41-114.16114.16-180.1-38.14-38.20N1151.74169.651239.57-83.9583.951596.621721.111619.60V16.624.2218.7363.42-63.42104.9226.5725.851边柱上端M14.284.8516.72-83.6083.60128.7424.0323.93N1153.46169.751238.34-150.48150.481681.631723.531621.80V-4.76-1.62-5.5752.58-52.58-75.04-8.01-7.98下端M7.142.458.36-155.64155.64212.3612.0412.00N1184.17169.751269.05-150.48150.481718.481764.981658.65V-4.76-1.62-5.5752.58-52.58-75.04-8.01-7.98中柱上端M-11.84-4.28-13.97-105.47105.47-153.88-20.18-20.20N1424.75221.851535.68-118.07118.071997.512140.832020.29V4.931.785.8262.78-62.7888.608.408.41下端M-5.92-2.14-6.99-174.53174.53-235.28-10.09-10.1N1455.46221.851566.39-118.07118.072033.162182.282057.14V4.931.785.8262.78-62.7888.608.408.41楼梯计算6.1设计资料6.1.1结构形式和材料强度等级本工程层高为3.6m。采用混凝土现浇板式楼梯,地砖地面,涂料底板粉刷,楼梯活荷载为3.5kN∕㎡。采用现浇板式楼梯,C30混凝土,结构布置图如图(1)所示,梁内钢筋为Ⅱ级,板内钢筋为Ⅱ级和冷扎钢筋。第53页共59页
2014届土木工程专业毕业设计6.1.2梯段斜板TB1该板倾斜度为:a=arctg=26.57ºcosa=0.894(1)计算跨度和板厚计算跨度取=+1.8Sina=3.3+0.30=3.60m,板厚一般不小于=120mm,现取h=120mm。(2)荷载计算荷载计算取1m宽板带作为计算单元恒荷载:三角形踏步重:×0.30×0.15××25=1.875kN∕m斜板自重:0.12×1××25=3.356kN∕m第53页共59页
2014届土木工程专业毕业设计地砖地面:0.05×(0.30+0.15)××20=1.5kN∕m板底粉刷:0.02×1.00××17=0.38kN∕m标准值:=8.01kN∕m设计值:=8.01×1.2=9.62kN∕m活荷载:标准值:=3.5kN∕m设计值:=3.5×1.4=4.9kN∕m(3)弯矩计算M=(+)=×(9.62+4.9)×=14.41kN•m(4)配筋计算=120-21=99mmC30混凝土=14.3N∕Ⅱ级钢筋=300N∕==0.103查表得=0.9455==513.15选用B12@130(=870),分布钢筋A8@250。6.1.3平台板TB2(1)计算跨度和板厚计算跨度取=+a=4.2m,h≥=120mm,现取h=120mm(2)荷载计算荷载计算取1m宽板带作为计算单元恒荷载:120厚现浇板自重:0.12×1×25=3.0kN∕m地砖地面:0.05×1×20=1kN∕m板底粉刷:0.02×1.00×17=0.34kN∕m标准值:=4.34kN∕m第53页共59页
2014届土木工程专业毕业设计设计值:=4.34×1.2=5.21kN∕m活荷载:标准值:=3.5kN∕m设计值:=3.5×1.4=4.9kN∕m(3)弯矩计算M=(+)=×(5.21+4.9)×=4.19kN•m(4)配筋计算=120-21=109mmC30混凝土=14.3N∕CRB550冷扎钢筋=360N∕==0.047查表得=0.9759==150.97选用AR8@150(=335),分布钢筋AR8@200。6.1.4平台梁TB2(1)计算跨度和截面尺寸跨度=4.6m,截面尺寸b×h=250mm×500mm(2)荷载计算恒荷载:梯段斜板传来:8.01×=11.62kN∕m平台板传来:3.84×(+0.25)=4.51kN∕m梁自重:0.25×(0.5-0.1)×25=2kN∕m板底粉刷:0.02×(0.5-0.1)×2×17=0.272kN∕m标准值:=18.4kN∕m设计值:=18.4×1.2=22.08kN∕m活荷载:梯段斜板传来:3.5×=5.075kN∕m第53页共59页
2014届土木工程专业毕业设计平台板传来:3.5×(+0.25)=4.112kN∕m标准值:=9.19kN∕m设计值:=9.19×1.4=12.86kN∕m(3)内力作用M=(+)=×(22.08+12.86)×=92.42kN•mV=(+)=×(22.08+12.86)×=76.87kN(4)配筋计算1)纵向钢筋==0.120查表得=0.9359==707.88选用4B20(=1256),架立筋选用3B16,腰筋2A10。2)横向钢筋==0.046<0.25(截面尺寸满足)==0.46<0.7(仅需按构造要求配箍)选用箍筋A8@1506.1.5平台梁PL2(1)计算跨度和截面尺寸跨度=4.6m,截面尺寸b×h=200mm×500mm(2)荷载计算恒荷载:平台板传来:3.84×(+0.2)=4.32kN∕m空心砖墙传来:0.2×3.1×20=12.4kN∕m(砌筑)0.02×3.1×2×17=2.108kN∕m(抹灰)梁自重:0.2×(0.5-0.1)×25=2kN∕m第53页共59页
2014届土木工程专业毕业设计板底粉刷:0.02×(0.5-0.1)××17=0.272kN∕m标准值:=21.1kN∕m设计值:=21.1×1.2=25.32kN∕m活荷载:平台板传来:3.5×(+0.2)=3.94kN∕m标准值:=3.94kN∕m设计值:=3.94×1.4=5.52kN∕m(3)内力作用M=(+)=×(25.32+5.52)×=74.63kN•mV=(+)=×(25.32+5.52)×=61.68kN(4)配筋计算1)纵向钢筋==0.121查表得=0.9353==572选用3B18(=1256),架立筋选用3B16,腰筋2A10。1)横向钢筋==0.046<0.25(截面尺寸满足)==0.46<0.7(仅需按构造要求配箍)选用箍筋A8@1506.1.6平台梁LP1(1)计算跨度和截面尺寸跨度=2.1m,截面尺寸b×h=200mm×400mm第53页共59页
2014届土木工程专业毕业设计(2)荷载计算恒荷载:平台板传来:3.84×(+0.2)=9.22kN∕m空心砖墙传来:0.2×3.1×20=12.4kN∕m(砌筑)0.02×3.1×2×17=2.108kN∕m(抹灰)梁自重:0.2×(0.4-0.1)×25=1.5kN∕m板底粉刷:0.02×(0.4-0.1)××17=0.204kN∕m标准值:=25.44kN∕m设计值:=25.44×1.2=30.53kN∕m活荷载:平台板传来:3.5×(+0.2)=8.4kN∕m标准值:=8.4kN∕m设计值:=8.4×1.4=11.76kN∕m(3)内力作用M=(+)=×(30.53+11.76)×=23.55kN•mV=(+)=×(30.53+11.76)×=38.06kN(4)配筋计算1)纵向钢筋==0.062查表得=0.9680==222选用2B20(=628),架立筋选用2B18。2)横向钢筋==0.036<0.25(截面尺寸满足)==0.36<0.7(仅需按构造要求配箍)第53页共59页
2014届土木工程专业毕业设计选用箍筋A8@200楼梯结构图如下:,基础设计7.1地基承载力特征值和基础材料7.1.1本工程地质情况粘性土,γ=18KN/m3,=200KN/m2。综合考虑建筑物的用途、基础的型式、荷载大小、工程地质及水文地质条件等,持力层考虑为一般土层,=200KN/m2,基础的埋置深度取d=37.35/15=2.5m。基础采用C30混凝土,=14.3N/mm2,ft=1.43N/mm2钢筋采用HPB335,=300N/mm2,钢筋的混凝土保护层厚度为35mm;垫层采用C15混凝土,厚100mm。7.1.2确定地基承载力特征值假设基础宽度小于3米或埋深大于0.5米,按《建筑地基基础设计规范》(GB50007—第53页共59页
2014届土木工程专业毕业设计2002)式5.2.4修正=+ηbγ(b-3)+ηdγm(d-0.5)=200+1.0×18×(2.5-0.5)=236KN/7.2基础顶面内力组合7.2.1标准组合由PK计算结果查得柱1柱底标准组合,分别取三组内力组合:弯矩KN·m轴力KN剪力KN(1)轴力最大-118.642686.98-39.62(2)弯矩最大-185.252643.05-58.94(3)弯矩、剪力都较大-185.012671.09-58.717.2.2基本组合(1.35×标准组合)弯矩KN·m轴力KN剪力KN(1)轴力最大-160.163627.42-53.49(2)弯矩最大-250.093568.12-79.57(3)弯矩、剪力都较大-249.763605.97-79.267.3取第一组轴力最大来确定柱1基础底面尺寸bXL7.3.1考虑偏心作用取=1.2×=1.2×2686.98/(227-18×2)=16.9。又由n=L/b=1.5≤2得,b=≈3.5m,则L=1.5×b=5.3m.所以柱1基础的底面尺寸为b×L=3.5×5.3第53页共59页
2014届土木工程专业毕业设计图6-17.3.2持力层承载力验算:(用标准组合)=Ad=18×3.5×5.3×2.5=834.75KN=2686.98KN=-118.64KN·me===0.035