《20m简支装配式后张法预应力混凝土空心板配束计算(手算).doc》由会员分享，可在线阅读，更多相关《20m简支装配式后张法预应力混凝土空心板配束计算(手算).doc（49页珍藏版）》请在三一文库上搜索。
1、the building of grassroots organizations of the party has in place comprehensive and excellent decision, unbalanced development of grass-roots party organizations in schools, fully equipped with strong party branch secretaries, standardized branch of the construction, the party controls the party, s
2、trictly administering the party system deficiencies. Although outdated, lack of specificity, seriousness and restraint system regulations for patch perfect, but failed to form a system, and construction of inner-party regulations needed to further enhance scientific and systematization and standardi
3、zation level. 6, in the implementation of a gang two sittings, to be honest and work the same layout, but sometimes there is too much emphasis on important issues, and one-sided pursuit of tasks implementation issues. (V) space cleanup, housing car description and salary transfers and other aspects
4、of the relationship between school adjustment cleaning office spaces 6326 sqm 143, vacated office room, to repel illegal standard with 5 cars. At present, school leaders and official cars were within the Office space standards. Not illegal part-time wage and transfer related to members of the leadin
5、g group and individual family housing also has personal issues to report truthfully. All school leaders had no full-time Secretary. Second, the analysis of the cause of the problem (a) ideal beliefs are weakened, as transactional work, learning time arrangements are insufficient, received insufficie
6、nt education of ideal and belief. Meanwhile, from the effects of invasion and the thought of social reality, fluctuations, combined with the lack of theoretical learning and mastery, weakened somewhat to communist ideals and beliefs. Ideal and faith is the root of party members and cadres, pulse of
7、country, soul, has no roots, no pulse, no soul, it will be a big problem. Second, weakening of spiritual pursuit, as not enough energy. Society in General light work light ideal demands, interests and belief choices the influence, eroded our spiritual pursuits, relaxing our self, team loyalty, aware
8、ness, situation awareness, professionalism has weakened, as inadequate. (B) the party spirit has . , Practice area, peoples achievement in perspective, time correction performance oriented, unable to stick to seeking truth from facts, scientific attitudes, pragmatic style, and interests of the peopl
9、e as the starting point and the end point for all the work, establish stand the test of practice, history, and the peoples performance. Third, to benefit, the ability to resist temptation. Not always adhere to the party and the peoples interests above everything else. Personal interests conflict wit
10、h the interests of the party and the people, when fear of sacrifice. On the relationship of give and take, not completely content to the poor and selfless dedication; on dealing with rights and obligations cannot be self-disciplined and law-abiding. In General, there are many reasons, both issues no
11、t strict with themselves, there is vulnerability, external constraint is not strong because of institutional mechanisms. But read between the lines, or personal ideals and beliefs on the root causes landslides, professionalism, responsibility is not strong, four winds problem rectification is not co
12、mplete, no real issues of world Outlook, Outlook on life and Outlook on the master switch problem. All not false questions, if you do not attach great importance to solve, great harm. Part provincial University leaders disciplinary illegal case lessons told we, on personal, self预应力混凝土公路桥梁通用设计图成套技术 2
13、0m简支预应力混凝土空心板预应力混凝土公路桥梁通用图设计成套技术通用图设计计算书20m简支装配式后张法预应力混凝土空心板配束计算（手算）(高速公路和一级公路) 设计计算人： 日期： 复核核对人： 日期：单位审核人： 日期：项目负责人： 日期：编制单位：湖南省交通规划勘察设计院编制时间：二六年三月relax, easy thought landslide, and behavior fall, once brake not car, years of efforts struggle, and self constraints a night clear zero; on party, we o
14、f cadres problem, corrupt style political wind, damage party masses, deterioration political ecological, over time will weakened party of public letter force, against party of ruling based; on I school, not strict not real of style is we officer venture of predators, Directly impact our school of ed
15、ucation development and harmonious construction of the whole school, and ultimately hurt the workers vital interests and fundamental interests. To these questions, we will be highly vigilant, do some soul-searching and a warning. Third, future directions and key reform measures (a) theory, belief an
16、d faith. First, implementing the requirements of strictly administering the party, effort to take effective measures to firmly seize the firm ideal and faith as a fundamental pillar, implementing good anchoring our fundamentals, setting the soul Ki vitality works. In a serious political life as the
17、magic weapon of the party, adhere to strict political baptism of the life of the party, promote the party given the political maturity, remains a political youth. Adhere to the system of inner-party life, carrying out activities in accordance with the regulations, focus on improving the quality of l
18、ife within the party, fundamentally solve the partys fighting Fort and the exemplary vanguard role of party members question. Second, individual party members and cadres theoretical study shortage, poor results and so on. Strictly from the requirements, promoting construction of study-oriented party
19、 organizations, party cadres conscientiously carry forward the spirit of the nail, 8 hour, finding time to learn scientific theories, and really, really understand, really, really work hard on seeking practical results. To improve the system of cadres training and theoretical learning center group,
20、give full play to its main role of theoretical study. Organize lectures counseling, effective exchange, guide cadres in theory as a guide in their practical work. Third, strict examination. On party theory study and democracy itself to examination and appraisal every year, do not read, do not read .
21、 Leader: must hold defence interests particularly sobering. Avoid misunderstanding to the corrupt minefield, from the cancer in the destruction of human life, clear the soul of cancer, advance guard against position risks, control strict standards and real requirements, tempering party spirit, stick
22、 to clean the bottom line, strengthen the cadre of honest. Leadership in accordance with the Constitution and the guidelines and the requirements of the regulations, leading implementation of the Central eight, and ten provincial rules, strictly implement the provisions of self-discipline, not trapp
23、ed by self-interest, not to be overruled by the temptations is truly upright and uncorrupted, a dignified life, the right to clean, Frank swing and keep the clean nature of the Communist Party. (C) right to use self-restraint, and create a good political environment. One is a complete system. To con
24、tinue to pay special attention to institutional establishment and revision of work, pay special attention to implementation of the system of, really with the people in charge of the system. Grasp party political life system construction, formed party democratic and supervision restricted mechanism,
25、enhanced party political life of political sex, and principle, and fighting sex, serious party45湖南省交通规划勘察设计院 目 录1 计算依据与基础资料11.1 标准及规范11.1.1 标准11.1.2 规范11.1.3 参考资料11.2 主要材料11.3 设计要点22 横断面布置22.1 横断面布置图22.2 预制板截面尺寸33 汽车荷载横向分布系数、冲击系数的计算33.1 汽车荷载横向分布系数计算33.1.1 跨中横向分布系数33.1.2 支点横向分布系数53.1.3 车道折减系数53.2 汽车荷
26、载冲击系数计算53.2.1汽车荷载纵向整体冲击系数53.2.2 汽车荷载的局部加载冲击系数54 作用效应组合64.1 作用的标准值64.1.1 永久作用标准值64.1.2 汽车荷载效应标准值74.2 作用效应组合104.2.1 基本组合（用于结构承载能力极限状态设计）104.2.2 作用短期效应组合(用于正常使用极限状态设计)114.2.3 作用长期效应组合（用于正常使用极限状态设计）114.3 截面几何特性计算145 持久状态承载能力极限状态计算165.1 正截面抗弯承载能力165.2 斜截面抗剪承载力验算175.2.1 验算受弯构件抗剪截面尺寸是否需进行抗剪强度计算176 持久状况正常使用
27、极限状态计算196.1 预应力钢束应力损失计算206.1.1 张拉控制应力206.1.2 各项预应力损失206.2 温度梯度截面上的应力计算266.3 抗裂验算276.3.1 正截面抗裂验算276.3.2 斜截面抗裂计算306.4 挠度验算326.4.1 汽车荷载引起的跨中挠度326.4.2 预制板是否设置预拱值的计算337 持久状态和短暂状况构件应力计算357.1 使用阶段正截面法向应力计算357.1.1 受压区混凝土的最大压应力357.1.2 受拉区预应力钢筋的最大拉应力367.2 使用阶段混凝土主压应力、主拉应力计算377.3 施工阶段应力验算398 桥面板配筋计算418.1 荷载标准值
28、计算418.1.1 计算跨径418.1.2 跨中弯矩计算428.1.3 支点剪力438.2 极限状态承载力计算438.2.1 荷载效应组合计算438.2.2 正截面抗弯承载力448.2.3 斜截面抗剪承载力448.3 抗裂计算449 铰接板的混凝土铰缝剪力验算45预应力混凝土公路桥梁通用设计图成套技术通用图计算（20m简支预应力混凝土空心板）1 计算依据与基础资料1.1 标准及规范1.1.1 标准 跨径：桥梁标准跨径20m；计算 跨径(正交、简支)19.26m；预制板长19.96m 设计荷载：公路级 桥面宽度：（路基宽23m，高速公路），半 幅桥全宽11.25m 0.5m(护栏墙)+10.25
29、m(行车道)+ 0.5m(护栏墙)11.25m 结构重要性系数： 1.1 环境条件类，计算收缩徐变时，考虑存梁期为90天1.1.2 规范 公路工程技术标准JTG B01-2003 公路桥梁设计通用规范JTG D60-2004（简称通规） 公路钢筋混凝土及预应力混凝土桥涵设计规范JTG D62-2004（简称预规）1.1.3 参考资料公路桥涵设计手册桥梁上册（人民交通出版社2004.3）1.2 主要材料1）混凝土：预制板及铰缝为C50、现浇铺装层为C40、护栏为C302）预应力钢绞线：采用钢绞线，3）普通钢筋：采用HRB335，1.3 设计要点1）本计算按后张法部分预应力混凝土A类构件设计，偏安
30、全的，桥面板及铺装层混凝土不参与截面组合作用；2）预应力张拉控制应力值。3）环境平均相对湿度RH=80;4）计算混凝土收缩、徐变引起的预应力损失时传力锚固龄期为7d;5）存梁时间为90d。2 横断面布置2.1 横断面布置图（单位：mm）2.2 预制板截面尺寸 边、中板毛截面几何特性 表21板号边板中板几何特性面积抗弯惯性矩截面重心到顶板距离面积抗弯惯性矩截面重心到顶板距离0. 72100.07980.4180. 55510.06220.4843 汽车荷载横向分布系数、冲击系数的计算3.1 汽车荷载横向分布系数计算3.1.1 跨中横向分布系数本桥虽有100mm现浇桥面整体化混凝土，但基本结构仍是
31、横向铰接受力，因此，汽车荷载横向分布系数按截面8块板铰接计算。由于边中板的抗弯、抗扭刚度稍有差别，为简化计算，参考已有资料，取中板的几何特性，板宽b=1.24m,计算跨径=19.26m,毛截面的面积，抗弯惯矩，抗扭惯矩。 计算刚度参数参见“公路桥涵设计手册梁桥上册” 人民交通出版社2004.3由附表（二）铰接板（梁）桥荷载横向分布系数影响线表,依板块数8,及所计算板号按=0.0135值查取各块板轴线处的影响线坐标 影响线坐标表 表31=0.0135影响线坐标123456788-10.2090.1790.1450.1200.1020.0890.0800.0768-20.1790.1750.154
32、0.1270.1070.0940.0840.0808-30.1450.1540.1570.1410.1190.1040.0940.0898-40.1200.1270.1410.1490.1370.1190.1070.102求出边板、中板汽车荷载横向分布系数：在影响线上布置车轮,相应位置处的竖标总和即为荷载分布系数3.1.2 支点横向分布系数按杠杆法布载分别计算边、中板的横向分布系数。支点截面汽车荷载横向分布系数，因一列车辆的轮距为1.8m，1号、2号两块板上只能布一排汽车轮载，所以支点横向分布系数。3.1.3 车道折减系数双车道车道折减系数为1。3.2 汽车荷载冲击系数计算3.2.1汽车荷载纵
33、向整体冲击系数简支板结构基频 通规条文说明4 C50混凝土 板跨中处单位长度质量：，其中跨中延米结构自重（N/m），g重力加速度 按照通规第4.3.2条，冲击系数可按下式计算： 当时， 3.2.2 汽车荷载的局部加载冲击系数 采用。4 作用效应组合4.1 作用的标准值4.1.1 永久作用标准值 一期恒载：预制板重力密度取 边板 中板 二期恒载：1）100mm C40混凝土和100mm沥青混凝土铺装重力密度取2）铰缝混凝土，重力密度取3）护栏（单侧），重力密度取，近似按横向分布系数分配重量，边板取0.209，中板取0.179。边板：中板： 端部横隔板及加厚段重量：端部有1.0m的横隔板及加厚段，
34、用于校核的截面受该部分重量增加的影响很小，故仅在支座选型时考虑其压重。单块板一端的压重为6.7kN。恒载效应标准值计算 表41截面板号弯矩剪力计算式(kNm)(kNm)计算式(kNm)(kNm)跨中边板869.22 653.33 中板669.24 555.96 边板651.92 490.00 90.26 67.84 中板501.93 416.97 69.49 57.73 支点边板180.52 135.69 中板138.99 115.46 距支点h（h为梁高）边板162.47122.12162.59122.21中板125.09103.92125.18104.004.1.2 汽车荷载效应标准值公路
35、-级车道荷载计算图式 根据通规第4.3条，公路级车道荷载均布标准值为，集中荷载标准值：当计算跨径小于5m时，；当计算跨径等于或大于50m，。本例计算跨径为19.26m 计算剪力时，计算跨中、截面荷载效应标准值 两列车布载控制设计，横向折减系数，A为内力影响线面积，为内力影响线竖标值。跨中、支点及距支点h截面汽车荷载内力影响线跨中、支点截面公路级荷载产生的内力 表4-2 截面板号荷载横向分布系数弯矩影响线不计冲击力=(kNm)计冲击力=1.274(kNm)剪力影响线不计冲击力=(kN)计冲击力=1.274(kN)(m2)(m)(m2)(m)跨中边板0.31546.374.82513.21653.
36、314.820.560.7477.32中板0.305496.91632.5758.8174.87边板0.31534.783.61384.54489.525.420.7585.12108.36中板0.305372.33473.9882.41104.91距支点h边板0.3155.130130.59166.245.410156.38199.070.3893.1103.2800.48150.428000.950.46300.9-中板0.3055.130129.66165.065.410155.36197.770.38353.1103.2800.4810.428000.950.46200.9-支点边板0
37、.315-5.420178.14226.770.4075-4.2100.5-01中板0.305-5.420177.35225.770.4025-4.2100.5-01支点剪力横向分布系数在本端支点处为0.5，L/4处与跨中横向分布系数一致，支点与L/4之间线性变化，为计算方便，采用与影响线面积相应的横向分布系数平均值。4.2 作用效应组合4.2.1 基本组合（用于结构承载能力极限状态设计） 通规4.1.61式1）其中各分项系数的取值如下结构重要性系数，=1.1；结构自重分项系数， 1.2汽车荷载（含冲击力）的分项系数，取1.42）基本组合计算永久作用的设计值与可变作用设计值组合表 表4-3-1
38、（边板）板号作用分类组合计算表达式跨中距支点h支点弯矩(kNm)剪力(kN)弯矩(kNm)剪力(kN)弯矩(kNm)剪力(kN)剪力(kN)边板永久作用一期恒载869.220651.92 90.26 162.47 162.59 180.52 二期恒载653.330490.00 67.84 122.12 122.21 135.69 1522.5501141.92 158.10 284.59 284.80 316.21 1827.0601370.30 189.72 341.51 341.76 379.45 可变作用（计冲击力）653.3177.32489.52 108.36 166.24 199.
39、07 226.77 914.63108.25685.33 151.70 232.74 278.70 317.48 使用阶段2175.8677.321631.44 266.46 450.83 483.87 542.98 3015.86119.082261.19 375.56 631.68 682.51 766.62 永久作用的设计值与可变作用设计值组合表 表4-3-2（中板）板号作用分类组合计算表达式跨中距支点h支点弯矩(kNm)剪力(kN)弯矩(kNm)剪力(kN)弯矩(kNm)剪力(kN)剪力(kN)中板永久作用一期恒载669.24 0501.93 69.49 125.09 125.18 1
40、38.99 二期恒载555.96 0416.97 57.73 103.92 104.00 115.46 1225.20 0918.90 127.22 229.01 229.18 254.45 1470.24 01102.68 152.66 274.81 275.02 305.34 可变作用（计冲击力）632.57 74.87 473.98 104.91 165.06 197.77 225.77 885.60 104.82 663.57 146.87 231.08 276.88 316.08 使用阶段1857.77 74.87 1392.88 232.13 394.07 426.95 480.2
41、2 2591.42 115.30 1942.88 329.48 556.48 607.09 683.56 4.2.2 作用短期效应组合(用于正常使用极限状态设计)永久荷载作用为标准值效应与可变作用频遇值效应组合,其效应组合表达式为 通规4.1.7-1式式中 -可变作用效应的频遇值系数: 汽车荷载（汽车荷载不计冲击力）=0.7,温度梯度作用=0.8。4.2.3 作用长期效应组合（用于正常使用极限状态设计）永久作用标准值效应与可变作用准永久值效应相组合，其效应组合表达式为： 通规4.1.7-2式式中第j个可变作用效应的准永久值系数，汽车荷载（不计冲击力）=0.4，温度梯度作用=0.8；作用长期效应
42、组合设计值,结构抗裂验算时,其中可变作用仅考虑汽车等直接作用于构件的荷载效应。作用短期和长期效应组合计算 表44作用分类组合计算表达式跨中距支点h支点弯矩(kNm)剪力(kN)弯矩(kNm)剪力(kN)弯矩(kNm)剪力(kN)剪力(kN)边板永久作用1522.55 01141.92 158.10 284.59 284.80 316.21 可变作用（不计冲击力）513.21 60.74 384.54 85.12 130.59 156.38 178.14 359.25 42.52 269.18 59.58 91.41 109.47 124.70 205.28 24.30 153.82 34.05 52.24 62.55 71.26 1881.80 42.52 1411.10 217.68 376.00 394.27 440.91 1727.83 24.30 1295.74 192.15 336.83 347.35 387.47 中板永久作用1225.20 0918.90 127.22 229.01 229.18 254.45 可变作用（不计冲击力）496.91 58.81 372.33 82.41 129.66 155.36 177.35 347.84 41.