30米箱梁结构计算书.doc

上部结构计算书1.概况与基本数据1.1概况（1） 上部构造形式采用6梁式，见图1：图1箱梁横断面（单位：cm）（2） 明确12厘米现浇混凝土铺装不参与受力。（3） 混凝土强度等级：C40 （4） 箱梁结构3孔连续。1.2基本数据（1） 结 构：3跨后张法预应力混凝土连续箱梁（2） 计算跨径：30米（3） 车 道 数：4车道（4） 汽车荷载：城市B级 人群荷载：4.5KN/m2 2. 技术规范2.1公路工程技术标准(JTG 001-97)2.2公路桥涵设计通用规范（JTG 021-89）2.3公路钢筋混凝土及预应力混凝土桥涵设计规范（JTG D23-85）3.材料主要指标3.1混凝土表1 箱梁混凝土主要指标指标强度等级弹性模量容 重轴心抗压设计强度抗拉设计强度轴心抗压标准强度抗拉标准强度C402618.41.6526.82.203.2 预应力钢绞线 表2 钢绞线主要指标 公称直径 截面面积单位重量标准强度弹性模量松驰级别1401.1021860 3.3 钢筋 表3 钢筋主要指标钢筋种类抗拉设计强度抗压设计强度标准强度弹性模量R235195195235HRB3352802803354.计算参数4.1预应力筋计算参数（1） 预应力锚下张拉控制应力为，两端张拉（2） 预应力筋与管道壁摩擦系数=0.25（3） 管道每米局部偏差对摩擦的影响系数K=0.0015（4） 1000小时钢绞线松驰率4.54.2温度效应考虑整体均匀温升20，整体均匀温降-25。非线形温度梯度按公路桥涵设计通用规范（JTG D60-2004）第4.3.10条规定执行12cm桥面板升高5。5连续箱梁计算5.1计算模型说明采用大型通用有限元软件Midas进行空间分析及结构计算，12cmC40防水混凝土、护栏重力荷载作为二期恒载。用梁单元模拟预制混凝土，并按照施工图的配筋图，对梁进行普通钢筋及预应力钢筋的配筋模拟计算。30m单跨模型如下图所示：图2 30米单跨模型示意图整桥模型如下图所示：图3 3跨整桥模型示意图5.2计算结果1.支座反力节点荷载FX(KN)FY（KN）FZ(KN)MX(KN*M)MY(KN*M)MZ(KN*M)1cLCB27272.25 0867.67 106.04 7376.64 407.07 67cLCB27256.60 01087.56 73.31 7184.78 26.87 133cLCB27266.81 01077.45 73.30 7188.49 25.28 199cLCB27273.50 01077.53 69.98 7195.82 27.02 265cLCB27278.56 01087.68 70.11 7208.35 25.59 331cLCB27312.31 0867.53 102.95 7419.80 372.89 12cLCB21106.28 01762.93 01404.27 0.00 78cLCB21127.54 02046.89 01304.88 0.00 144cLCB21126.14 01984.01 01321.10 0.00 210cLCB21137.95 01984.83 01334.41 0.00 276cLCB21164.28 02046.01 01345.70 0.00 342cLCB21172.54 01763.76 01479.43 0.00 23cLCB21122.64 01764.05 01437.10 0.00 89cLCB21142.13 02047.89 01335.18 0.00 155cLCB21136.47 01985.18 01346.94 0.00 221cLCB21143.52 01985.99 01354.75 0.00 287cLCB21162.18 02046.71 01358.85 0.00 353cLCB21163.27 01762.38 01485.17 0.00 34cLCB27177.49 0862.17 07300.27 0.00 100cLCB27297.39 01059.80 07235.27 0.00 166cLCB27271.02 01048.14 07203.48 0.00 232cLCB27282.28 01061.10 07216.04 0.00 298cLCB27334.39 01086.80 07276.72 0.00 364cLCB27257.57 0866.58 07392.53 0.00 组合名称：cLCB21.2永久荷载+1.4移动荷载注：节点表示支座设置位置。2. 使用阶段正截面压应力验算结果单元位置组合名称类型验算Sig_MAXSig_ALW1I3cLCB8FX-MAXOK-395.059134001J2cLCB8FX-MINOK209.2689134002I4cLCB8FX-MINOK-313.432134002J3cLCB8FX-MAXOK-371.419134003I5cLCB8FX-MINOK-118.653134003J4cLCB8FX-MINOK-310.932134004I6cLCB8FX-MAXOK59.7439134004J5cLCB8FX-MINOK-121.34134005I7cLCB8FX-MAXOK88.464134005J6cLCB8FX-MAXOK54.5683134006I8cLCB8FX-MINOK496.7769134006J7cLCB8FX-MAXOK83.6155134007I9cLCB8FX-MINOK2210.024134007J8cLCB8FX-MINOK499.0188134008I10cLCB8FX-MINOK1745.06134008J9cLCB8FX-MINOK2185.943134009I11cLCB8FX-MAXOK3811.784134009J10cLCB8FX-MINOK1744.7591340010I13cLCB8FX-MINOK3619.9571340010J11cLCB8FX-MAXOK3780.8151340011I14cLCB8FX-MAXOK3626.6251340011J13cLCB8FX-MAXOK2858.4521340012I15cLCB8FX-MAXOK953.38461340012J14cLCB8FX-MAXOK3674.7781340013I16cLCB8FX-MINOK1563.8051340013J15cLCB8FX-MAXOK1031.771340014I17cLCB8FX-MINOK446.25441340014J16cLCB8FX-MINOK1581.4011340015I18cLCB8FX-MINOK-330.8581340015J17cLCB8FX-MINOK438.77741340016I19cLCB8FX-MINOK454.04111340016J18cLCB8FX-MINOK-333.2421340017I20cLCB8FX-MINOK1592.4441340017J19cLCB8FX-MINOK454.87531340018I21cLCB8FX-MAXOK1032.5031340018J20cLCB8FX-MINOK1562.4531340019I22cLCB8FX-MAXOK3655.6241340019J21cLCB8FX-MAXOK944.32821340020I24cLCB8FX-MAXOK2808.8891340020J22cLCB8FX-MAXOK3601.8921340021I25cLCB8FX-MAXOK3749.8511340021J24cLCB8FX-MINOK3586.2651340022I26cLCB8FX-MINOK1725.2761340022J25cLCB8FX-MAXOK3786.5181340023I27cLCB8FX-MINOK2168.7681340023J26cLCB8FX-MINOK1747.1651340024I28cLCB8FX-MINOK486.56321340024J27cLCB8FX-MINOK2203.2681340025I29cLCB8FX-MAXOK95.14021340025J28cLCB8FX-MINOK488.69311340026I30cLCB8FX-MAXOK61.42461340026J29cLCB8FX-MAXOK98.32751340027I31cLCB8FX-MINOK-110.9561340027J30cLCB8FX-MAXOK63.94261340028I32cLCB8FX-MINOK-325.4151340028J31cLCB8FX-MINOK-117.2641340029I33cLCB8FX-MAXOK-374.611340029J32cLCB8FX-MINOK-337.391340030I35cLCB8FX-MINOK307.69861340030J33cLCB8FX-MAXOK-350.2731340061I68cLCB8FX-MINOK-45.26811340061J69cLCB8FX-MAXOK-290.6681340062I69cLCB8FX-MAXOK-238.9731340062J70cLCB8FX-MINOK-305.0771340063I70cLCB8FX-MINOK-306.6971340063J71cLCB8FX-MINOK-116.5441340064I71cLCB8FX-MINOK-118.5731340064J72cLCB8FX-MAXOK124.63071340065I72cLCB8FX-MAXOK108.29521340065J73cLCB8FX-MAXOK145.71561340066I73cLCB8FX-MAXOK137.37571340066J74cLCB8FX-MINOK456.72551340067I74cLCB8FX-MINOK461.03031340067J75cLCB8FX-MINOK2216.0781340068I75cLCB8FX-MINOK2229.0171340068J76cLCB8FX-MINOK1785.0561340069I76cLCB8FX-MINOK1782.4981340069J77cLCB8FX-MAXOK4064.7371340070I77cLCB8FX-MAXOK3978.3671340070J79cLCB8FX-MINOK3457.0021340071I79cLCB8FX-MAXOK2874.1711340071J80cLCB8FX-MAXOK3802.7811340072I80cLCB8FX-MAXOK3933.7091340072J81cLCB8FX-MAXOK1002.1651340073I81cLCB8FX-MAXOK1199.7291340073J82cLCB8FX-MINOK1591.8121340074I82cLCB8FX-MINOK1578.4281340074J83cLCB8FX-MINOK389.92191340075I83cLCB8FX-MINOK384.38491340075J84cLCB8FX-MINOK-391.0891340076I84cLCB8FX-MINOK-392.9651340076J85cLCB8FX-MINOK400.55261340077I85cLCB8FX-MINOK402.06891340077J86cLCB8FX-MINOK1592.3071340078I86cLCB8FX-MINOK1590.9611340078J87cLCB8FX-MAXOK1203.2571340079I87cLCB8FX-MAXOK1006.2821340079J88cLCB8FX-MAXOK3925.9851340080I88cLCB8FX-MAXOK3795.3451340080J90cLCB8FX-MAXOK2840.3311340081I90cLCB8FX-MINOK3437.1111340081J91cLCB8FX-MAXOK3961.4191340082I91cLCB8FX-MAXOK4048.5321340082J92cLCB8FX-MINOK1769.9341340083I92cLCB8FX-MINOK1777.8671340083J93cLCB8FX-MINOK2208.4611340084I93cLCB8FX-MINOK2209.8941340084J94cLCB8FX-MINOK449.53931340085I94cLCB8FX-MINOK448.31411340085J95cLCB8FX-MAXOK147.89871340086I95cLCB8FX-MAXOK157.64521340086J96cLCB8FX-MAXOK114.30871340087I96cLCB8FX-MAXOK134.06711340087J97cLCB8FX-MINOK-107.151340088I97cLCB8FX-MINOK-93.52541340088J98cLCB8FX-MINOK-294.021340089I98cLCB8FX-MINOK-269.851340089J99cLCB8FX-MAXOK-202.0091340090I99cLCB8FX-MAXOK-295.6181340090J101cLCB8FX-MINOK-51.965313400121I134cLCB8FX-MINOK-90.615713400121J135cLCB8FX-MAXOK-273.76213400122I135cLCB8FX-MAXOK-223.81613400122J136cLCB8FX-MINOK-294.27813400123I136cLCB8FX-MINOK-291.92913400123J137cLCB8FX-MINOK-108.57913400124I137cLCB8FX-MINOK-107.44113400124J138cLCB8FX-MAXOK137.096113400125I138cLCB8FX-MAXOK121.670313400125J139cLCB8FX-MAXOK159.597213400126I139cLCB8FX-MAXOK148.637213400126J140cLCB8FX-MINOK460.061613400127I140cLCB8FX-MINOK460.688413400127J141cLCB8FX-MINOK2232.76513400128I141cLCB8FX-MINOK2261.97313400128J142cLCB8FX-MINOK1800.85713400129I142cLCB8FX-MINOK1817.51413400129J143cLCB8FX-MAXOK4108.03213400130I143cLCB8FX-MAXOK4026.38213400130J145cLCB8FX-MINOK3438.79913400131I145cLCB8FX-MAXOK2911.8613400131J146cLCB8FX-MAXOK3844.87713400132I146cLCB8FX-MAXOK3969.55813400132J147cLCB8FX-MAXOK1037.42913400133I147cLCB8FX-MAXOK1227.56813400133J148cLCB8FX-MINOK1616.36613400134I148cLCB8FX-MINOK1585.5613400134J149cLCB8FX-MINOK377.097213400135I149cLCB8FX-MINOK372.732913400135J150cLCB8FX-MINOK-415.55513400136I150cLCB8FX-MINOK-414.50113400136J151cLCB8FX-MINOK390.543813400137I151cLCB8FX-MINOK397.12413400137J152cLCB8FX-MINOK1605.37813400138I152cLCB8FX-MINOK1616.99513400138J153cLCB8FX-MAXOK1236.11313400139I153cLCB8FX-MAXOK1045.16813400139J154cLCB8FX-MAXOK3965.96113400140I154cLCB8FX-MAXOK3842.68413400140J1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