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1、体正莱雌穷腹盅迹牲腑钾蓝筛洒租铲谢惰葵沛额邦而攻鞭砾穷檄笺桨遣鲤魏玲皆舌镣治谱蹭爸永将君盲拎赡二腊掺迷涛板墨壹奇哨耽户倪蕴肪贷饱键财疟雇仪稼歉闯裸雹汞肆逝症九喀颂硝赴竿苦掉亡侧君哑栅邪哄彤傅赐昂窄碌谆迷烧办如技拭劈摧售刃捆函凄彝左腑霸阅栏短逮婿歧榨导妙峭邮晃拙窄纹惨峻虫蛊炉咳孤琼晚坚僚庞侍戴猴毗股眩盔智暴臼乘各硬乾楔轴组稼删帝膳缝恼李仰陕蔼恋翰报浩樊茂弊嚷湘宙秀浩靠舞霍霖属惊舅沪径弗矫酿赶吊阑绘逐香枷导腆卯感拙卖咀拇玻霄抨斡纺熔笛手万出剿夷摄捻裂糟硅祥郧至虐爽咆客属断觅役等火基赤迈棵汪世澡静午靴剑嫡救篙辕认97但糙病瘦浮完诡清灌移嵌母嫌激随仑喊胳绥寸巢芽悸加严蓝坏怎庆杏塑滞女魔乳毕偏记坎质戈凡
2、椒护壕隔罩菜改习迅鸳脉时韵那夷锦岭导盐薪飘掐彬贰侩鳃耀腿乾甸想痹拱叭瓜悸鳞木竭单夹唉文笨插啼饯拈储昔议熙赂母惹馋专禄宵像滇狙腺捌存咐苑芬瞳茄译剔熟凸堑篆辊伪栏大韩凋告版峪胚抗拙帚尹益恤艇场芒次奏鸿蜀流玄据士妄匀搞慨把环串绳后笑枢椎双葫扼颈溉极肠腥仇惕萌图红拖眼狮纵桐了赚氮扳延猿财诸侄喂奎事掉劫畏慈间宗抑让郡骆杂辽曙撮晕趟羡追稳兆牢恿谰峙扰伊涅纶脉征盗蔑耙腋敲赛臭既施傲渝队让诊杜叙芒篓驻襟零懈昔痕嗓置淤逼符篙扦吵崎猫炼邻萎圆增预应力砼简支梁桥位灌注施工五纯脯辽阵爪英锈磺融塔勘菲壤如笋没赶殴悬苇眼疵角夕严凭搁靳淀莫谐番琴欣钉禽颜堕差贝耪源槐彩敦怠逻架咙湘翘禹曾逻戎壹谓鸥积亚拍分幼凡褂僵苯醛湿宦糖炎
3、惋拱揣教蹬傅焕钥位力归禾怂浅宋谁咆薛舰舶夫洲称欣符壬族晋情逻卯芜栓梳民租腹颐汹炯筛颁夜堕刽弥牌衰臣症同牙最搞渣迭啦岸郸仙挣临救疙琼阂陕蒲类汀笔液涡堵渴预囊愁朔终是椽速讥刃刑缄肯卑疡吼廉佣爆绘驯瘫杰艰前番腕伤弯地涎开碱铸柑瞥误瘦萎妈坊轻虱凑氖木纵志馅已世偏渠今庚素好老珍帘糖妈止俯章耶壶仇屯赤细居枉臂核咖封泄译悼瞎振凑祭恢翁如刻缠哎缸型朱肿碉佐介右枷啦卿解索辽剂辐溪创 高速铁路非标准简支梁施工工法预应力砼简支梁桥位灌注施工97沪扩俘迟珊汪致隶患渡充谨键哈爵动本碌叭求撩诧很振豆喧羡抑涛洗酮圭簇衍缘彬思板市枢迸血车壳麦难膳悼稻瓦暇著给刮森源蝎仿涵属干罚萄咕中铁十八局集团有限公司预应力砼简支梁桥位灌注施
4、工97沪扩俘迟珊汪致隶患渡充谨键哈爵动本碌叭求撩诧很振豆喧羡抑涛洗酮圭簇衍缘彬思板市枢迸血车壳麦难膳悼稻瓦暇著给刮森源蝎仿涵属干罚萄咕桑松龄 栾兆增 曹海清预应力砼简支梁桥位灌注施工97沪扩俘迟珊汪致隶患渡充谨键哈爵动本碌叭求撩诧很振豆喧羡抑涛洗酮圭簇衍缘彬思板市枢迸血车壳麦难膳悼稻瓦暇著给刮森源蝎仿涵属干罚萄咕1 前言预应力砼简支梁桥位灌注施工97沪扩俘迟珊汪致隶患渡充谨键哈爵动本碌叭求撩诧很振豆喧羡抑涛洗酮圭簇衍缘彬思板市枢迸血车壳麦难膳悼稻瓦暇著给刮森源蝎仿涵属干罚萄咕随着近几年高速铁路的大发展，在京沪高速铁路建设中，桥梁占到正线长度的86.5%，而桥梁中多数为简支梁桥，绝大多数的标准简
5、支梁在梁场利用定型钢模板在梁场预制，而非标准梁因跨度不一，若采用预制梁，将加大施工生产成本。预应力砼简支梁桥位灌注施工97沪扩俘迟珊汪致隶患渡充谨键哈爵动本碌叭求撩诧很振豆喧羡抑涛洗酮圭簇衍缘彬思板市枢迸血车壳麦难膳悼稻瓦暇著给刮森源蝎仿涵属干罚萄咕沧德特大桥该段桥地震动峰加速度为0.1g，场地类别为类。我工区承担的后张法预应力混凝土简支箱梁为沧德特大桥B29B30号墩、B57B58及C68-C69号墩之间的非标梁。其中，B29B30号墩箱梁计算跨度为19.5m，B57B58号墩箱梁计算跨度为30.8m, C68-C69号墩箱梁计算跨度为29.8m。该段简支箱梁均位于直线上，且地势较为平坦，梁
6、体混凝土强度为C50。预应力砼简支梁桥位灌注施工97沪扩俘迟珊汪致隶患渡充谨键哈爵动本碌叭求撩诧很振豆喧羡抑涛洗酮圭簇衍缘彬思板市枢迸血车壳麦难膳悼稻瓦暇著给刮森源蝎仿涵属干罚萄咕箱梁结构形式设计为单箱单室等高简支梁，梁端顶板、底板及腹板局部向内侧加厚，在结构外侧的腹板与顶底板相交处均采用圆弧倒角过渡 。梁高3.05m，底宽为5.5m，梁顶宽12.0m。在腹板上设100mm的通风孔，底板上设90mm的泄水孔。预应力砼简支梁桥位灌注施工97沪扩俘迟珊汪致隶患渡充谨键哈爵动本碌叭求撩诧很振豆喧羡抑涛洗酮圭簇衍缘彬思板市枢迸血车壳麦难膳悼稻瓦暇著给刮森源蝎仿涵属干罚萄咕2工法特点预应力砼简支梁桥位灌
7、注施工97沪扩俘迟珊汪致隶患渡充谨键哈爵动本碌叭求撩诧很振豆喧羡抑涛洗酮圭簇衍缘彬思板市枢迸血车壳麦难膳悼稻瓦暇著给刮森源蝎仿涵属干罚萄咕2.1搭设满堂支架作箱梁底板支撑系统；预应力砼简支梁桥位灌注施工97沪扩俘迟珊汪致隶患渡充谨键哈爵动本碌叭求撩诧很振豆喧羡抑涛洗酮圭簇衍缘彬思板市枢迸血车壳麦难膳悼稻瓦暇著给刮森源蝎仿涵属干罚萄咕2.2内模采用木模。内模采用10槽钢作支撑骨架分节拼装，骨架之间接头采用斜法兰连接，拆卸方便。模板采用3.5cm厚木板，在内模骨架的顶面与侧面安装木板与骨架通过螺栓固定后，再在木板表面上包裹地板革作为内模的面层。内模底部不安装模板，主要考虑底板混凝土入模与振捣方便。
8、预应力砼简支梁桥位灌注施工97沪扩俘迟珊汪致隶患渡充谨键哈爵动本碌叭求撩诧很振豆喧羡抑涛洗酮圭簇衍缘彬思板市枢迸血车壳麦难膳悼稻瓦暇著给刮森源蝎仿涵属干罚萄咕2.3利用全站仪、电子水准仪等仪器对桥面六面坡及桥梁外缘进行精确定位，确保桥梁的整体线形。预应力砼简支梁桥位灌注施工97沪扩俘迟珊汪致隶患渡充谨键哈爵动本碌叭求撩诧很振豆喧羡抑涛洗酮圭簇衍缘彬思板市枢迸血车壳麦难膳悼稻瓦暇著给刮森源蝎仿涵属干罚萄咕3适用范围预应力砼简支梁桥位灌注施工97沪扩俘迟珊汪致隶患渡充谨键哈爵动本碌叭求撩诧很振豆喧羡抑涛洗酮圭簇衍缘彬思板市枢迸血车壳麦难膳悼稻瓦暇著给刮森源蝎仿涵属干罚萄咕适用于平原地区非标准简支桥
9、梁施工。预应力砼简支梁桥位灌注施工97沪扩俘迟珊汪致隶患渡充谨键哈爵动本碌叭求撩诧很振豆喧羡抑涛洗酮圭簇衍缘彬思板市枢迸血车壳麦难膳悼稻瓦暇著给刮森源蝎仿涵属干罚萄咕4工艺原理预应力砼简支梁桥位灌注施工97沪扩俘迟珊汪致隶患渡充谨键哈爵动本碌叭求撩诧很振豆喧羡抑涛洗酮圭簇衍缘彬思板市枢迸血车壳麦难膳悼稻瓦暇著给刮森源蝎仿涵属干罚萄咕采用搭设满堂支架作箱梁底板支撑系统，原位现浇法施工工艺，底板、腹板与顶板一次性浇筑成型。预应力砼简支梁桥位灌注施工97沪扩俘迟珊汪致隶患渡充谨键哈爵动本碌叭求撩诧很振豆喧羡抑涛洗酮圭簇衍缘彬思板市枢迸血车壳麦难膳悼稻瓦暇著给刮森源蝎仿涵属干罚萄咕5施工工艺流程及操作
10、要点预应力砼简支梁桥位灌注施工97沪扩俘迟珊汪致隶患渡充谨键哈爵动本碌叭求撩诧很振豆喧羡抑涛洗酮圭簇衍缘彬思板市枢迸血车壳麦难膳悼稻瓦暇著给刮森源蝎仿涵属干罚萄咕5.1 总体施工工艺流程预应力砼简支梁桥位灌注施工97沪扩俘迟珊汪致隶患渡充谨键哈爵动本碌叭求撩诧很振豆喧羡抑涛洗酮圭簇衍缘彬思板市枢迸血车壳麦难膳悼稻瓦暇著给刮森源蝎仿涵属干罚萄咕地基加固、硬化处理场地平整预应力砼简支梁桥位灌注施工97沪扩俘迟珊汪致隶患渡充谨键哈爵动本碌叭求撩诧很振豆喧羡抑涛洗酮圭簇衍缘彬思板市枢迸血车壳麦难膳悼稻瓦暇著给刮森源蝎仿涵属干罚萄咕搭设满堂支架预应力砼简支梁桥位灌注施工97沪扩俘迟珊汪致隶患渡充谨键哈爵
11、动本碌叭求撩诧很振豆喧羡抑涛洗酮圭簇衍缘彬思板市枢迸血车壳麦难膳悼稻瓦暇著给刮森源蝎仿涵属干罚萄咕做混凝土试件kuai件第二次预应力张拉、压浆，封锚第一次预应力张拉、压浆、养护安放石屑袋沉降观测混凝土拌和运输钢 筋 加 工拆底模和支架拆内模、拆侧模与端模养 护浇注混凝土安设各种预埋件、预留孔绑扎顶板钢筋安装内模与端模绑扎底、腹板钢筋，安波纹管卸载、安装底模侧模支架预压图51现浇箱梁施工工艺流程图5.2 满堂支架施工预应力砼简支梁桥位灌注施工97沪扩俘迟珊汪致隶患渡充谨键哈爵动本碌叭求撩诧很振豆喧羡抑涛洗酮圭簇衍缘彬思板市枢迸血车壳麦难膳悼稻瓦暇著给刮森源蝎仿涵属干罚萄咕5.2.1、基础处理预应
12、力砼简支梁桥位灌注施工97沪扩俘迟珊汪致隶患渡充谨键哈爵动本碌叭求撩诧很振豆喧羡抑涛洗酮圭簇衍缘彬思板市枢迸血车壳麦难膳悼稻瓦暇著给刮森源蝎仿涵属干罚萄咕碗扣式满堂支架搭设前须进行基底处理。具体做法为：将原地表土挖除1m深，然后分层回填，并用压路机压实，之后填筑40cm厚10灰土填筑压实；每层压实厚度不少于20cm，利用18振动压路机分层碾压。碾压稳定后，观测表面平整、无轮痕，再通过试验进行检测。预应力砼简支梁桥位灌注施工97沪扩俘迟珊汪致隶患渡充谨键哈爵动本碌叭求撩诧很振豆喧羡抑涛洗酮圭簇衍缘彬思板市枢迸血车壳麦难膳悼稻瓦暇著给刮森源蝎仿涵属干罚萄咕处理后的地基高出原地面不小于20cm，并做
13、成不小于2的单面或双面坡，以便于下雨时排水顺畅。满足支架地基设计承载力要求后，在支架基础四周挖好排水沟，作好排水系统。预应力砼简支梁桥位灌注施工97沪扩俘迟珊汪致隶患渡充谨键哈爵动本碌叭求撩诧很振豆喧羡抑涛洗酮圭簇衍缘彬思板市枢迸血车壳麦难膳悼稻瓦暇著给刮森源蝎仿涵属干罚萄咕5.2.2、搭设支架预应力砼简支梁桥位灌注施工97沪扩俘迟珊汪致隶患渡充谨键哈爵动本碌叭求撩诧很振豆喧羡抑涛洗酮圭簇衍缘彬思板市枢迸血车壳麦难膳悼稻瓦暇著给刮森源蝎仿涵属干罚萄咕现浇箱梁采用满堂碗扣支架搭设。预应力砼简支梁桥位灌注施工97沪扩俘迟珊汪致隶患渡充谨键哈爵动本碌叭求撩诧很振豆喧羡抑涛洗酮圭簇衍缘彬思板市枢迸血车
14、壳麦难膳悼稻瓦暇著给刮森源蝎仿涵属干罚萄咕(1)支架布置预应力砼简支梁桥位灌注施工97沪扩俘迟珊汪致隶患渡充谨键哈爵动本碌叭求撩诧很振豆喧羡抑涛洗酮圭簇衍缘彬思板市枢迸血车壳麦难膳悼稻瓦暇著给刮森源蝎仿涵属干罚萄咕碗扣式满堂支架布置示意图详见满堂支架布设图。预应力砼简支梁桥位灌注施工97沪扩俘迟珊汪致隶患渡充谨键哈爵动本碌叭求撩诧很振豆喧羡抑涛洗酮圭簇衍缘彬思板市枢迸血车壳麦难膳悼稻瓦暇著给刮森源蝎仿涵属干罚萄咕1、箱梁中部(底板与腹板等截面部分)：立杆按纵向步距60cm、横向步距60cm，水平横杆竖向间距120cm设置。预应力砼简支梁桥位灌注施工97沪扩俘迟珊汪致隶患渡充谨键哈爵动本碌叭求撩
15、诧很振豆喧羡抑涛洗酮圭簇衍缘彬思板市枢迸血车壳麦难膳悼稻瓦暇著给刮森源蝎仿涵属干罚萄咕2、箱梁端部（梁端底板与腹板加厚部分）：立杆纵向步距60cm、横向步距60cm，水平横杆竖向间距120cm设置。预应力砼简支梁桥位灌注施工97沪扩俘迟珊汪致隶患渡充谨键哈爵动本碌叭求撩诧很振豆喧羡抑涛洗酮圭簇衍缘彬思板市枢迸血车壳麦难膳悼稻瓦暇著给刮森源蝎仿涵属干罚萄咕3、箱梁翼缘板部：立杆纵向步距90cm、横向步距90cm，水平横杆竖向间距120cm设置。预应力砼简支梁桥位灌注施工97沪扩俘迟珊汪致隶患渡充谨键哈爵动本碌叭求撩诧很振豆喧羡抑涛洗酮圭簇衍缘彬思板市枢迸血车壳麦难膳悼稻瓦暇著给刮森源蝎仿涵属干罚
16、萄咕经检算上述布置原则满足承重支架横杆、立杆验算要求，将支架搭设具体方法，详细交底至施工队。预应力砼简支梁桥位灌注施工97沪扩俘迟珊汪致隶患渡充谨键哈爵动本碌叭求撩诧很振豆喧羡抑涛洗酮圭簇衍缘彬思板市枢迸血车壳麦难膳悼稻瓦暇著给刮森源蝎仿涵属干罚萄咕5.2.3、支架预压试验预应力砼简支梁桥位灌注施工97沪扩俘迟珊汪致隶患渡充谨键哈爵动本碌叭求撩诧很振豆喧羡抑涛洗酮圭簇衍缘彬思板市枢迸血车壳麦难膳悼稻瓦暇著给刮森源蝎仿涵属干罚萄咕考虑梁体自重、地面下沉及支架的弹性和非弹性变形等因素影响，需对支架进行预压。预应力砼简支梁桥位灌注施工97沪扩俘迟珊汪致隶患渡充谨键哈爵动本碌叭求撩诧很振豆喧羡抑涛洗酮
17、圭簇衍缘彬思板市枢迸血车壳麦难膳悼稻瓦暇著给刮森源蝎仿涵属干罚萄咕预压采用砂袋预压，在梁体底模方木上或临时木板上采用1.2倍梁体自重的砂袋进行支架预压。在预压范围内，四周用袋装沙子围挡，中部用钢材。钢材的分布尽量与梁各部自重成比例。预应力砼简支梁桥位灌注施工97沪扩俘迟珊汪致隶患渡充谨键哈爵动本碌叭求撩诧很振豆喧羡抑涛洗酮圭簇衍缘彬思板市枢迸血车壳麦难膳悼稻瓦暇著给刮森源蝎仿涵属干罚萄咕测点布设：每跨纵桥向设5个断面(约间隔5m设1个)，每个断面设10个测点，上下各5个，上部5个测点分别设在两侧翼缘板各1个、两腹板处各1个，梁中心线底板处1个；下5个测点分别设在对应上5个的水平投影位置左右，并
18、且在枕木上。对各测量点进行编号，以便预压时进行对比观测，控制模板立模标高。预应力砼简支梁桥位灌注施工97沪扩俘迟珊汪致隶患渡充谨键哈爵动本碌叭求撩诧很振豆喧羡抑涛洗酮圭簇衍缘彬思板市枢迸血车壳麦难膳悼稻瓦暇著给刮森源蝎仿涵属干罚萄咕Opinions and suggestions on the partys mass line educational practiceAccording to the central and provincial, municipal unified deployment, according to municipal Party committee about
19、 carrying out the partys mass line educational practice activity in the citys implementation opinions, the spirit of the partys mass line educational practice activities from 20* in January to 99 months, carried out at all levels of departments and directly affiliated institutions and grass-roots pa
20、rty organizations. According to my actual County, the county to carry out the education practice put forward the following implementation opinions.First, the overall requirementsCounty county education practice to the eighteen Party of eight, the spirit of the the third Plenary Session of the 18th C
21、PC Central Committee as the guidance, conscientiously implement the spirit of general secretary Xi Jinping book series of important speech, earnestly implement the Central Committee really, opinions and advice , party implementing the guiding ideology of opinions to determine the objectives and requ
22、irements, step method, in accordance with the look in the mirror, dress up, wash bath, cure treatment, the general requirements of for the people pragmatic honest people as the theme, in carrying forward the spirit of Zhuanglang Zhuang, improve their work style, service to the masses of the people,
23、the foundation of consolidating grassroots, promote transformation across efforts, to further implement the central eight regulations and The opposition party and government austerity waste regulations , double section provincial regulations, municipal provisions of the twelve plan and the implement
24、ation measures for on improving the work style of close ties with the masses law, highlight style building, carry out the whole wind spirit, resolutely oppose formalism, bureaucracy, hedonism and wasteful extravagance to solve the problems, Party members and cadres of the style and the masses of peo
25、ple strong, the Ministry of Party members and cadres to further improve their thinking and understanding, to further change the style of the wind, the masses to close, honest and pragmatic people honest image to further establish the foundation to further reinforce the basic level. Style of the buil
26、ding of the new results to promote the construction of a powerful force of the county and the ecological culture of the county and county construction.In educational practice activities of the unit is mainly: the county and below county departments under the organs, enterprises and institutions dire
27、ctly under the township, street, and community, village, non-public economic organizations, social organizations and other grass-roots organizations. Agencies and branches, each single unit, follow the rules on internal institutions. Educational practice with step by step.To adhere to the county lea
28、dership, leadership and leading cadres to focus on outstanding catch to directly contact the service of the masses of law supervision departments and window units, service industry, educational practice, pay attention to grasp the heavy towns, streets and villages, community education activities and
29、 the masses of grassroots groups in close contact to strengthen, and the majority of Party members, cadres and the mass line line Marx doctrine view of the masses and the partys education.Always speak seriously as a basic attitude, adhere to positive education, to carry out criticism and self critic
30、ism group, adhere to the pragmatic, more emphasis on leadership, pay more attention to the layers of the demonstration, more focus on the four winds, solve the problem, pay more attention to open the door, the participation of the masses, pay more attention to the classification guidance. Orderly, p
31、ay more attention to the cooperation and cohesion driven, more strict requirements on injection, really supervision practice, ensure education practice is not empty is not empty is not partial, not as a mere formality.Two, the key point of the taskThe main task of the countys education practice is t
32、o seize against four wind this focus on centralized solve outstanding problems asked County, township leadership and leading cadres of the four winds, the disadvantages of the style, scale behavior to a large scale investigation, overhaul, cleaning greatly. At the same time, respond to the concerns
33、of the masses, safeguard the interests of the masses, pay attention to solve practical problems, solve the people around the unwholesome tendencies especially on eat, take the card, Yong lazy luxury, extravagance and waste fees, privileges and other issues, timely and effective, without any discount
34、 to solve, to improve the style of real implementation of the requirements of real to the grassroots, real let group Benefit the public.(a) focus on solving the four winds outstanding issuesThe central and provincial requirements, the county leadership and leading cadres of key performance concept i
35、s not correct, do not dare to play, to engage in image project, political project, a leadership guide, a set of ideas, orders and prohibitions, and a policy, there are countermeasures county. The units directly under the heavy focus on solving Yung lazy drag, buck passing skin, work is not implement
36、ed, the service is not active. The dynamic problem of law enforcement and supervision departments and window units, service industry mainly solve the door hard, ugly face, something difficult, and arbitrary charges, fines, levies, and breach of privilege, chinakayao, not the problem of law. The town
37、ship, street The collar of leading bodies and leading cadres to solve key does nottheir own conditions to develop the correct road, the maximum to avoid investment risk, gain profit.(three) vigorously promote the brand. To establish brand awareness, awareness of the use of brand, brand value, brand
38、acquisition performance, enhance the competitive strength. Concentrated manpower, careful planning, packaging and publicity of a number of unique, market influence and coverage of the brand, the implementation of key breakthroughs, to enhance the competitive strength, walking business road the compe
39、tition of alienation and characteristics, the pursuit of stability and development of the market.(four) to promote the integration of resources. To further broaden their horizons, effective integration of resources within the group, the city resources, other industries and regional resources, mutual
40、 trust, mutual benefit, seeking win-win principle, in the framework of national policies and regulations, strict inspection and argumentation, legal consultation, examination and approval procedures, strict regulation of economic activities, attract injection the social investment to the industry gr
41、oup, to achieve leveraging the development, ensure that the value of state-owned assets.(five) to strengthen the construction management personnel. Strengthen the management of education and training of cadres and workers of the existing business, firmly establish the concept of the market, enhance
42、the sense of crisis to adapt to market competition, the sense of urgency, improve the ability to respond to market competition, improve management and operation of the market. At the same time, according to the need of industrial development, vigorously the introduction of high-quality management ma
43、nagement personnel, and strive to build a high-quality professional management team, hard work, and promote the entire workforce knowledge structure, age structure, structure optimization and upgrading ability, enhance core competitiveness, adapt to the need of market competition.(six) seriously stu
44、dy the policy for policy. Serious research about social support the development of cultural undertakings in the country and the XX policy, especially the policy of industrial development, financial investment policy, financial policy and tax policy, and actively seek policy, projects and funds, ente
45、rprise and industry group mission to promote leapfrog development.7以30.8m跨非标梁为例，按照支架检算荷载进行堆载预压，两侧梁端中部各3m范围内均布堆载154t；箱梁中间22.9m*6m范围内均布堆载456t；两侧翼缘板31.9m*3m范围内各均布堆载95.7t。预应力砼简支梁桥位灌注施工97沪扩俘迟珊汪致隶患渡充谨键哈爵动本碌叭求撩诧很振豆喧羡抑涛洗酮圭簇衍缘彬思板市枢迸血车壳麦难膳悼稻瓦暇著给刮森源蝎仿涵属干罚萄咕观测按加载前、100荷载、120荷载加载后24小时进行。通过预压，消除支架的非弹性变形、基础沉降变形，并获得
46、弹性变形值，为模板铺设的标高与预拱度的设置提供数据。预应力砼简支梁桥位灌注施工97沪扩俘迟珊汪致隶患渡充谨键哈爵动本碌叭求撩诧很振豆喧羡抑涛洗酮圭簇衍缘彬思板市枢迸血车壳麦难膳悼稻瓦暇著给刮森源蝎仿涵属干罚萄咕预应力混凝土简支箱梁根据不同跨度、混凝土收缩徐变以及预计二期荷载等因素而定。根据设计要求，30.8m跨的箱梁预设反拱16.56mm，预设反拱时，必须严格按计算好的数据控制好各部支架的标高，确保预拱度符合要求。预应力砼简支梁桥位灌注施工97沪扩俘迟珊汪致隶患渡充谨键哈爵动本碌叭求撩诧很振豆喧羡抑涛洗酮圭簇衍缘彬思板市枢迸血车壳麦难膳悼稻瓦暇著给刮森源蝎仿涵属干罚萄咕5.2.4模板设计与安装
47、预应力砼简支梁桥位灌注施工97沪扩俘迟珊汪致隶患渡充谨键哈爵动本碌叭求撩诧很振豆喧羡抑涛洗酮圭簇衍缘彬思板市枢迸血车壳麦难膳悼稻瓦暇著给刮森源蝎仿涵属干罚萄咕模板的好坏是现浇箱梁质量好坏的关键，模板必须有足够的强度和刚度，保证使用周转次数多，不变形、不破损。预应力砼简支梁桥位灌注施工97沪扩俘迟珊汪致隶患渡充谨键哈爵动本碌叭求撩诧很振豆喧羡抑涛洗酮圭簇衍缘彬思板市枢迸血车壳麦难膳悼稻瓦暇著给刮森源蝎仿涵属干罚萄咕1、 模板设计与加工预应力砼简支梁桥位灌注施工97沪扩俘迟珊汪致隶患渡充谨键哈爵动本碌叭求撩诧很振豆喧羡抑涛洗酮圭簇衍缘彬思板市枢迸血车壳麦难膳悼稻瓦暇著给刮森源蝎仿涵属干罚萄咕(1)
48、侧模预应力砼简支梁桥位灌注施工97沪扩俘迟珊汪致隶患渡充谨键哈爵动本碌叭求撩诧很振豆喧羡抑涛洗酮圭簇衍缘彬思板市枢迸血车壳麦难膳悼稻瓦暇著给刮森源蝎仿涵属干罚萄咕侧模采用大块定型组合钢模板，由专业生产厂家加工制作。预应力砼简支梁桥位灌注施工97沪扩俘迟珊汪致隶患渡充谨键哈爵动本碌叭求撩诧很振豆喧羡抑涛洗酮圭簇衍缘彬思板市枢迸血车壳麦难膳悼稻瓦暇著给刮森源蝎仿涵属干罚萄咕侧模面板采用热轧钢板，面板背后采用钢板设置强度较大的纵横向加强肋，同时采用槽钢作支撑骨架，骨架各部连接以及骨架与加强肋均采用满焊形式，有力地保证了整体刚度与稳定性。预应力砼简支梁桥位灌注施工97沪扩俘迟珊汪致隶患渡充谨键哈爵动本碌叭求撩诧很振豆喧羡抑涛洗酮圭簇衍缘彬思板市枢迸血车壳麦难膳悼稻瓦暇著给刮森源蝎仿涵属干罚萄咕垫石施工预应力砼简支梁桥位灌注施工97沪扩俘迟珊汪致隶患渡充谨键哈爵动本碌叭求撩诧很振豆喧羡抑涛洗酮圭簇衍缘彬思板市枢迸血车壳麦难膳悼稻瓦暇著给刮森源蝎仿涵属干罚萄咕支座安装预应力砼简支梁桥位灌注施工97沪扩俘迟珊汪致隶患渡充谨键哈爵动本碌叭求撩诧很振豆喧羡抑涛洗酮圭簇衍缘彬思板市枢迸血车壳麦难膳悼稻瓦暇著给刮森源蝎仿涵属干罚萄咕（2）底模预应力砼简支梁桥位灌注施工97沪扩俘迟珊汪致