40+60+40m大跨连续梁计算书

1、计算书工程名称：231省道建湖段黄沙港大桥项目名称：黄沙港大桥40+60+40工程编号：SV13设计阶段：施工图设计构件名称：大跨预应力混凝土连续箱梁设计:1工程概况2计算依据和容2.1 计算依据2.1.1 现行国家及行业有关法规、标准、规程、规。2.2 计算容2.2.1 使用阶段支座反力计算2.2.2 承载能力极限状态正截面强度验算2.2.3 正常使用状态正截面、斜截面抗裂验算2.2.4 结构刚度验算3技术标准3.1 技术标准3.1.1 道路等级：公路1级3.1.2 桥梁宽度：桥梁宽度为 12m , 0.5+10.75+0.75=12m。3.1.3 荷载标准：公路1级。3.1.4 桥梁设计安

2、全等级结构重要性系数九=1.1。3.1.5 环境类别环境类别为I类。3.2 设计规3.2.1 公路桥涵设计通用规(JTG D60-2004 )3.2.2 公路钢筋混凝土及预应力混凝土桥涵设计规(JTG D62-2004 )3.2.3 公路桥涵施工技术规(JTJ 041-2000 )3.2.4 城市桥梁设计荷载标准(CJJ 77-98 )3.2.5 城市桥梁设计准则(CJJ11-93 )326公路工颉术标准(JTG B01-2003 )3.2.7 公路工程质量检验评定标准(JTG F80/1-2004 )4设计参数4.1 主要材料及其设计参数4.1.1 混凝土预应力混凝土梁上部结构采用C50 ；

3、昆凝土 ;桥面铺装采用C40混凝土。标号容重P(kN/m3)fc<i(MPa)fta(MPa)E(MPa)泊松比YaC5026.022.41.833.45x1040.21.0x10-5C4026.018.41.653.25x1040.21.0x10-5混凝土的收缩徐变参数：加载龄期：28天4.1.2 预应力钢束预应力钢束采用直径为15.2mm的预应力钢绞线，主要力学性能:极限抗拉强度：Rby=1860MPa ;拉控制应力：0.75Rby=1395MPa ;弹性模量:E=1.95xlO5MPa ;钢筋松弛率：0.;一端锚具变形及钢束回缩值：46mm。预应力连续箱梁的预应力管道采用性能优良的

4、塑料波纹管。m=0.25 , k=0.0015 ;4.1.3 钢筋设计用钢筋为R235钢筋(公称直径小于12mm )和HRB335钢筋(公称直径大于等 于12mm )两种，R235钢筋必须符合国家标准(GB130131991 )的有关规定；HRB335 钢筋必须符合国家标准(GB14991998 )的有关规定。钢筋种类容重P(kN/m3)fsk(MPa)Q(MPa)E(MPa)泊松比YaR23578.52352.1 xlO50.3l.OxW5HRB33578.53352802.0 xlO50.3l.OxlO-54.2 设计荷载取4.2.1 恒载(1)一期恒载一期恒载包括箱梁材料重量，混凝土容重

5、取26kN/m(2)二期恒载二期恒载为人行道栏杆及桥面铺装、人行道。其中：防撞护栏及波形护栏31kN/m ,车行道桥面铺装为9 cm沥青混凝土+6cm现浇混凝土 (44kN/m3),合计 75KN/m04.2.2 活载车行道宽度为10.75m ,计算取3车道1级车道荷载；横向分布系数： 3x1.15x0.78=2.691 ;冲击系数按照桥梁通用规取值。4.2.3 温度荷载混凝土体系升温：25 ,混凝土体系降温：-25。日照温差遵照公路桥涵设计通用规(JTGD60-2004 )取值。4.2.4 沉降不均匀沉降按照1cm取值。4.3 施工阶段主桥为挂篮悬浇施工,根据主桥施工流程,计算时全桥施工过程

6、共分成23 个阶段，详见表1-2。表1-2主桥施工流程表施工阶 段编号施工状态描述1安装施工托架、主墩处永久支座、施工过程临时固结，浇 筑墩顶0号块，拉0号块预应力2安装挂篮、挂篮加载准备浇筑1号块3悬臂浇筑1号块，拉相应预应力4挂篮前移、加载，准备浇筑2号块5悬臂浇筑2号块，拉相应预应力17悬臂浇筑8号块及浇筑边跨合现浇段，拉相应预应力18在支架上架设边跨合笼吊篮，同时拆除挂篮19浇筑边跨合笼段，边跨合拢，拉相应预应力束20架设中跨合拢段吊篮，施加中跨合拢段临时压重，浇筑中 跨合笼段21拆除中墩临时支座，拉钢束，中跨合拢22现浇桥面调平层、铺设桥面铺装及安装护栏23收缩徐变3650天5计算概

7、述5-1计算方法总体静力计算根据桥梁施工流程划分结构计算阶段，根据荷载组合要求的容进行应力、主梁极限承载力计算，验算结构在运营阶段应力、主梁极限承载力及整体刚度是否符合规要求。总体计算采用桥梁博士 V3.1平面杆系。5.2荷载组合5.2.1 承载能力极限状态组合一、组合I ：基本组合。按规JTGD602004第416条规定。按此组合验算结构的承载能力极限状态的强度。5.2.2 正常使用极限状态力组合一、组合I :长期效应组合。按规JTGD602004第4.1.7条规定。二、组合口：短期效应组合。按规JTGD602004第4.1.7条规定。三、组合m :标准值组合。6 40+60+40m连续箱梁

8、纵向整体计算分析图6.1箱梁断面图（单位：mm ）6.1 计算模型计算模型如下图所示。全桥共132个单元。2犯941311|1!11!11口口!1111111川11|皿则|口口_口叫山1山!山!口11也|11|1皿则|山|11111山!山山!山!小图1-1主桥计算模型wmisw的晒a图1-2计算模型中钢束图采用悬臂浇筑施工，p=0.25 , k=0.0015o6.2 支座反力全桥支座反力汇总表（kN ）墩台序号结构重力汽车Ma xQ的MinQ支座沉降均匀温度梯度温度标准组合支反力maXminmaxminmaxminmaxmin23340173-39100-71.70.544-0.68183-9

9、1.654902710091890297-332240181040006191-2190.679-0.54491.5-183001890297-332240181094007191-2190.682-0.54591.8-1840013172-402334000100-71.70.545-0.681183-91.754702700T V -自6.3持久状况承载能力极限状态计算构件按持久状况承载能力极限状态设计，应采用基本组合(桥博承载力组合1,强度验算) 对构件的承载力进行计算。按照规JTG D62-2004的第5.1.1-5.2.5条规定进行正截面抗弯承载力验算。验算截面的设计弯矩均小于截面极

10、限承载弯矩，结构受力安全，正截面强度满足设计规(1)正截面抗弯承载力验算要求。(2)斜截面抗剪承载力验算最大剪力抗力图ifarrnTn /mCD i3PTTnTrr /rrT> i.ilWIIIIIII jmmTLUiiy卬 niTrrTm 皿一抗剪计算汇总结果XV箍筋V预应力总抗力设计剪力VR/Vd满足尺寸0最大剪力00000是是0最小剪力00000是是1最大剪力11581.41912.813494.248062.808是是1最小剪力13248.31912.815161.12039.17.435是是2最大剪力6103.91912.88016.73737.82.145是是2最小剪力114

11、04.4914.812319.21786.36.896是是3最大剪力6906.91194.88101.73747.72.162是是3最小剪力6722.5914.87637.31440.95.301是是4最大剪力6907.9926.67834.53742.92.是是4最小剪力7061.4795.57856.916490.061是是5最大剪力7061.4597.47658.81978.93.87是是5最小剪力-7061.4-597.4-7658.8-293.526.092是是6最大剪力6910.9263.87174.71581.44.537是是6最小剪力-6910.6-263.8-7174.5-5

12、8912.182是是7最大剪力7018.107018.11175.65.97是是7最小剪力-70180-7018-982.47.144是是8最大剪力7048.9891.67940.4828.69.582是是8最小剪力6922.106922.1910.77.601是是9最大剪力7193.4891.68084.9477.616.929是是9最小剪力7017.407017.4606.311.574是是10最大剪力7010523753315050.212是是10最小剪力7060.907060.9279.825.235是是11最大剪力-7233.3-44.1-7277.4-231.531.441是是11

13、最小剪力-7061.40-7061.4-49.5142.682是是12最大剪力-7265.20-7265.2-580.712.51是是12最小剪力-7061.40-7061.4-353.619.968是是13最大剪力-7128.7-143.8-7272.5-850.28.554是是13最小剪力-7090.90-7090.9-711.29.971是是14最大剪力7171.207171.21093.76.557是是14最小剪力-7171.30-7171.3-10766.665是是15最大剪力7182.414728654.4754.811.465是是15最小剪力-7182.4-1472-8654.4

14、-1462.55.917是是16最大剪力7176.214728648.2397.921.734是是16最小剪力-7176.2-1472-8648.2-1852.14.669是是17最大剪力7080.31805.28885.67.51185.228是是17最小剪力-7080.3-1805.2-8885.5-23033.858是是18最大剪力-7206.6-2499-9705.5-287.833.727是是18最小剪力-7206.5-2499-9705.5-2652.93.658是是19最大剪力-7230.5-2247.9-9478.4-628.715.076是是19最小剪力-7238.1-210

15、0.6-9338.7-3107.33.005是是20最大剪力-7182.8-1932.4-9115.2-655.213.913是是20最小剪力-7177-1933.1-9110.1-2825.63.224是是21最大剪力-7333.9-1880.6-9214.5-267.734.419是是21最小剪力-7440.6-2571.2-10011.8-3084.53.246是是22最大剪力-7427.9-2774.1-10202-595.617.13是是22最小剪力-7596.3-3391.3-10987.6-3923.72.8是是23最大剪力-7293.5-1851.4-9144.8-940.59

16、.723是是23最小剪力-8449.2-1094.2-9543.4-4643.72.是是24最大剪力-7249.9-1900.2-9150.1-1292.87.078是是24最小剪力-8615-1888.8-10503.8-5355.41.961是是25最大剪力-7792-2377.1-10169.1-3160.33.218是是25最小剪力-8973.6-2552.5-11526.1-6074.51.897是是26最大剪力-7609.2-1787.5-9396.7-3371.62.787是是26最小剪力-9194.6-2259.1-11453.7-6822.41.679是是27最大剪力-773

17、7.4-1535.8-9273.2-3377.52.746是是27最小剪力-9237.5-1900.2-11137.6-7317.11.522是是28最大剪力-8152.5-2532.3-10684.8-4315.22.476是是28最小剪力-9432.8-1599.8-11032.6-7750.51.423是是29最大剪力-9752.5-1755.4-11507.9-4829.72.383是是29最小剪力-9752.5-2368.5-12121-8206.31.477是是30最大剪力-10073.7-2251.6-12325.2-5185.92.377是是30最小剪力-10073.7-157

18、2.8-11646.4-8659.61.345是是31最大剪力-11270.1-2219.2-13489.2-5553.22.429是是31最小剪力-11382.2-2173.1-13555.2-9121.61.486是是32最大剪力-13050-2511.1-15561.1-5916.32.63是是32最小剪力-13445.6-2346.7-15792.3-9600.21.645是是33最大剪力-13538.3-3092.9-16631.2-6318.62.632是是33最小剪力-14474.9-1599.7-16074.6-10083.21.594是是34最大剪力-13801.4-2912

19、.1-16713.5-6721.62.487是是34最小剪力-14996.5-3113.8-18110.4-10594.21.709是是35最大剪力-14349.2-1858-16207.2-7127.52.274是是35最小剪力-15142.1-3171-18313.1-11104.91.649是是36最大剪力-14504.3-3162.9-17667.2-7537.52.344是是36最小剪力-14994.8-2342.7-17337.5-11628.61.491是是37最大剪力-14661.7-2749-17410.7-7948.82.19是是37最小剪力-15886.5-2649.9-

20、18536.4-121661.524是是38最大剪力-14536.5-1779.1-16315.6-8366.41.95是是38最小剪力-15268.3-3079.6-18347.9-127421.44是是39最大剪力-14569.4-3203.3-17772.8-87862.是是39最小剪力-14685-3368.2-18053.2-13275.31.36是是40最大剪力-17542.7-2846.3-20389-9228.52.209是是40最小剪力-17763.5-3303.8-21067.3-13841.11.522是是41最大剪力-41848.4-2049.2-43897.6-979

21、04.484是是41最小剪力-41770.1-2933.8-44704-14556.93.是是42最大剪力-44195.3-2381.9-46577.2-10486.24.442是是42最小剪力-44195.3-2381.9-46577.2-155013.005是是43最大剪力41770.12933.84470413907.93.214是是43最小剪力41770.12933.8447049233.44.842是是44最大剪力17763.53303.821067.313166.91.6是是44最小剪力17763.53303.821067.386732.429是是45最大剪力146853368.2

22、18053.212593.61.434是是45最小剪力146853368.218053.28228.12.是是46最大剪力15268.33079.618347.9120511.523是是46最小剪力15268.33079.618347.97810.52.349是是47最大剪力14955.33084.118039.5115131.567是是47最小剪力15886.52649.918536.47389.62.508是是48最大剪力148642499.617363.610982.91.581是是48最小剪力16352.42774.419126.86977.22.741是是49最大剪力14916.63

23、051.41796810461.11.718是是49最小剪力16527.93761.820289.76570.33.088是是50最大剪力14640.23741.918382.199471.848是是50最小剪力15669.1304818717.16173.13.032是是51最大剪力14375.73218.517594.29432.51.865是是51最小剪力14627.72176.916804.65779.92.907是是52最大剪力13408.2255015958.18904.41.792是是52最小剪力13449.82752.916202.75402.72.999是是53最大剪力113

24、83.72654.214037.98453.81.661是是53最小剪力11383.73209.514593.25038.52.896是是54最大剪力10073.71830.111903.87988.11.49是是54最小剪力10073.72090.812164.54693.22.592是是55最大剪力9733.32602.712336.17518.11.641是是55最小剪力9733.3252712260.34356.62.814是是56最大剪力9376.3230611682.37064.71.654是是56最小剪力9376.32364.911741.24011.22.927是是57最大剪力

25、9187.81896.811084.56634.71.671是是57最小剪力91822045311227.33673.63.是是58最大剪力91031805109086145.51.775是是58最小剪力91032376.1114793288.33.491是是59最大剪力8834.52522.711357.25407.72.1是是59最小剪力8834.52669.511503.92703.84.255是是60最大剪力7448.21944.19392.342792.是是60最小剪力8491.62006.610498.221334.922是是61最大剪力7469.72843.510313.2316

26、8.53.255是是61最小剪力7478601.38079.31327.86.是是62最大剪力7433.92773.810207.72714.63.76是是62最小剪力7564.34662.6122271202.510.168是是63最大剪力7236.83011.510248.31910.75.364是是63最小剪力7567.5396611533.5991.711.63是是64最大剪力7142.32895.910038.22369.54.236是是64最小剪力7142.32895.910038.2259.438.703是是65最大剪力7365.13187.9105532370.54.452是是

27、65最小剪力7365.13187.910553273.638.575是是66最大剪力7328.43046.310374.81976.55.249是是66最小剪力-7328.4-3046.3-10374.8-75.3137.856是是67最大剪力72181805.29023.31617.15.58是是67最小剪力-7217.8-1805.2-9023-368.724.473是是68最大剪力7301.414728773.41169.17.505是是68最小剪力-7301.4-1472-8773.4-729.412.是是69最大剪力7309.414728781.5803.210.932是是69最小剪

28、力-7309.4-1472-8781.5-1082.78.111是是70最大剪力7135.207135.2502.214.207是是70最小剪力-7447.8-.3-7586.2-142.253.344是是71最大剪力7345.907345.9127.457.669是是71最小剪力7395.31667561.246816.157是是72最大剪力-7368.40-7368.4-22133.344是是72最小剪力7368.407368.4220.933.35是是73最大剪力-7395.3-166-7561.2-468.116.154是是73最小剪力-7344.60-7344.6-.553.是是74

29、最大剪力7447.81667613.8141.953.66是是74最小剪力-7130.60-7130.6-501.214.226是是75最大剪力7307.414728779.510828.114是是75最小剪力-7345-1933-9278-1925.84.818是是76最大剪力7304.514728776.6730.112.是是76最小剪力-7339.7-1880.6-9220.3-1928.94.78是是77最大剪力7221.31805.29026.5370.924.336是是77最小剪力-7347.2-1834.1-91813-1926.74.765是是78最大剪力7329.524999

30、828.459.3165.633是是78最小剪力-7211.5-1776.8-8988.3-2495.33.602是是79最大剪力-7365.1-2224.4-9589.5-273.635.是是79最小剪力-7449.9-2896.5-10346.4-1959.55.28是是80最大剪力-7142.3-1932.4-9074.7-259.534.967是是80最小剪力-7403.5-1776.9-9180.4-2895.13.171是是81最大剪力7236.82616.59853.4114.186.366是是81最小剪力-8003.8-2348.8-10352.7-32323.203是是82最

31、大剪力-7212.1-2646.6-9858.7-238.441.349是是82最小剪力-7981.1-2685.5-10666.7-3525.73.025是是83最大剪力-7359.8-1830.4-9190.2-568.916.154是是83最小剪力-8403.1-1067.8-9470.9-3988.42.375是是84最大剪力-7797.8-2200.3-9998.1-2139.94.672是是84最小剪力-8236.4-1830.4-10066.8-4688.72.147是是85最大剪力-7829.1-2494-10323.1-2710.83.808是是85最小剪力-8834.5-2

32、623.1-11457.6-5397.72.123是是86最大剪力-7623-1589.8-9212.7-3058.63.012是是86最小剪力-9103-2592-11695-6135.11.906是是87最大剪力-7747.6-1900.2-9647.7-3111.23.101是是87最小剪力-9187.8-1937.3-11125-66241.68是是88最大剪力-9376.3-2632-12008.3-4018.22.988是是88最小剪力-9356-1776.7-11132.7-7053.71.578是是89最大剪力-9733.3-2410-12143.3-4363.22.783是是

33、89最小剪力-9733.3-1603.9-11337.3-7506.81.51是是90最大剪力-10073.7-1325.5-11399.2-4702.72.424是是90最小剪力-10073.7-2554.6-12628.2-7958.71.587是是91最大剪力-11383.7-2479.1-13862.8-5051.42.744是是91最小剪力-11383.7-2038.3-13422.1-84211.594是是92最大剪力-13256.6-2498.2-15754.7-5416.82.909是是92最小剪力-13449.8-1945.1-15394.9-8900.61.73是是93最大

34、剪力-13959.8-2451.1-16410.9-5793.82.832是是93最小剪力-14645-1518.3-16163.3-9385.31.722是是94最大剪力-14202.2-3542.8-17745.1-6186.92.868是是94最小剪力-15669.1-2280-17949.1-9899.91.813是是95最大剪力-14565-2594.6-17159.5-65842.606是是95最小剪力-16527.9-2993.8-19521.7-10435.21.871是是96最大剪力-14643.1-2357.8-17001-6990.72.432是是96最小剪力-16352

35、.4-2774.4-19126.8-10963.91.745是是97最大剪力-14857-2869.1-17726.1-7403.12.394是是97最小剪力-15886.5-2649.9-18536.4-11465.31.617是是98最大剪力-14456.6-2077.8-16534.4-7817.62.115是是98最小剪力-15268.3-3079.6-18347.9-12040.81.524是是99最大剪力-14502.5-3137.6-17640.1-8233.72.142是是99最小剪力-14685-3368.2-18053.2-12582.51.435是是100最大剪力-177

36、63.5-3303.8-21067.3-8680.62.427是是100最小剪力-17763.5-3303.8-21067.3-131561.601是是101最大剪力-41770.1-2933.8-44704-92414.838是是101最小剪力-41770.1-2933.8-44704-13828.53.233是是102最大剪力-44195.3-2381.9-46577.2-9937.14.687是是102最小剪力-44195.3-2381.9-46577.2-14793.63.148是是103最大剪力41770.12933.84470414636.93.054是是103最小剪力41848.

37、42049.243897.698134.473是是104最大剪力17763.53307.821071.313879.81.518是是104最小剪力17542.72846.3203899250.82.204是是105最大剪力1468533631804813293.31.358是是105最小剪力14569.43203.317772.88808.42.018是是106最大剪力15268.33079.618347.912765.21.437是是106最小剪力14536.51771.916308.48378.91.946是是107最大剪力15886.52653.118539.612190.41.521是

38、是107最小剪力14661.72750.917412.67961.22.187是是108最大剪力150282349.217377.211675.21.488是是108最小剪力14504.33162.917667.27551.72.34是是109最大剪力15200.13208.718408.911143.51.652是是109最小剪力14349.3185816207.27142.62.269是是110最大剪力14996.53781.418777.910614.11.769是是110最小剪力13849.6291016759.76736.62.488是是111最大剪力14474.92169.7166

39、44.61010331.647是是111最小剪力13538.33752.617290.96333.52.73是是112最大剪力13445.62516.715962.39620.41.659是是112最小剪力130502674.815724.85937.32.648是是113最大剪力11382.22872.81425591421.559是是113最小剪力11270.12217.413487.55559.82.426是是114最大剪力10073.71994.3120688680.21.39是是114最小剪力10073.72258.912332.65194.62.374是是115最大剪力9752.6

40、2366.412118.98227.11.473是是115最小剪力9752.61746.711499.24840.22.376是是116最大剪力9432.92219.111651.97771.41.499是是116最小剪力8158.42571.910730.34358.92.462是是117最大剪力9237.51984.311221.87338.11.529是是117最小剪力7739.72145.99885.63512.92.814是是118最大剪力9194.52259.111453.76843.51.674是是118最小剪力7611.61478.39089.835112.589是是119最大

41、剪力8973.62552.511526.16095.71.891是是119最小剪力779249282843159.12.622是是120最大剪力8617.11920.610537.75376.71.96是是120最小剪力7759.14928251.12579.83.是是121最大剪力8449.21090.49539.646652.是是121最小剪力7293.53454.310747.7952.911.278是是122最大剪力75803313.810893.83978.72.738是是122最小剪力7427.94123.311551.2609.918.94是是123最大剪力7454.43090.

42、410544.83155.93.341是是123最小剪力7333.92395.49729.3282.234.479是是124最大剪力71771934.79111.72843.43.204是是124最小剪力7182.81930.29113669.613.61是是125最大剪力7239.72100.89340.53146.72.968是是125最小剪力7230.52248.19478.6643.114.739是是最大剪力7206.52499.597062658.23.651是是最小剪力7206.62499.59706299.432.422是是127最大剪力7080.21805.58885.72308.33.849是是127最小剪力-7080.3-1805.5-8885.8-8.81014.735是是128最大剪力7176.21472.38648.51857.34.657是是128最小剪力-7176.2-1472.3-8648.5-409.921.是是129最大剪力7182.41472.38654.71467.75.897是是129最小剪力-7182.4-1472.3-8654.7-749.411.549是是130最