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1、变截面连续梁桥常用施工方法1支架现浇法支架现浇法适用于旱地且跨径不太大的桥梁，施工中支架的安全、变形等是必须引起重视的问题。2悬臂施工法悬臂施工法是大跨径连续梁桥常用的施工方法，属于一种自架设方式，分为悬臂拼装与悬臂浇筑两种。悬臂拼装指在预制场预制梁节段、然后进行逐节对称拼装，拼装方法主要有扒杆吊装法、缆索吊装法、提升法等。悬臂浇注法则是利用挂蓝在桥墩两侧对称浇注箱梁节段、待已浇节段混凝土强度达到要求的张拉强度后进行预应力张拉，然后移动挂蓝进行下一节段施工，直至合拢。目前主要采用该法施工。不论悬拼还是悬浇，都是属于自架设方式施工，且已成结构的状态（包括受力，变形）具有不可调整性，所以，施工成败
2、的关键在于临时锚固的可靠性，施工过程中的应力监测、变形预测与标高调整以及体系转换的实施。经典图纸：变截面预应力连续刚构箱梁桥施工图范例桥梁全长：695.4m设计行车速度：80Km/h。荷载等级：公路-级，无人群荷载。桥宽：左右幅桥宽布置为0.5m 11m（行车道） 0.5m（防撞护栏）。高程：黄海高程系统。坐标：北京坐标系。地震烈度：设计基本地震动加速度峰值A=0.05g，抗震设防烈度为6度。桥面横坡：主桥单向横坡2%，引桥处在横坡变化段上。单箱单室截面箱梁顶宽：12米底宽6.5米顶板悬臂长度：2.75米顶板悬臂端部厚：20cm根部厚70cm。全桥分五联，其中第二联为主桥，采用(70 130
3、70)m跨的变截面预应力混凝土连续刚构箱梁；两岸引桥采用预应力混凝土T梁，第一、三联为先简支后刚构（采用部分连续墩），第四、五联为先简支后连续。主桥数量表、引桥数量表、地质纵断面图、桥型布置图箱梁标准横断面图、箱梁施工程序示意图箱梁截面标高、箱梁一般构造图箱梁纵向预应力钢束布置图箱梁纵向钢束竖弯平弯要素表箱梁纵向预应力钢束材料数量及引伸量计算表纵向钢束布置断面图20张箱梁纵向预应力钢束定位钢筋示意图箱梁锚下加强钢筋布置图箱梁横、竖向预应力钢束(筋)布置图箱梁横、竖向预应力钢束(筋)锚固大样图箱梁横、竖向预应力钢束(筋)数量表箱梁横、竖向预应力钢束(筋)定位钢筋示意图箱梁0号节段一般构造图、箱梁
4、0号节段钢筋布置图箱梁1-16、1-16号节段钢筋布置图箱梁17号节段钢筋布置图、箱梁17号节段一般构造图箱梁17号节段钢筋布置图箱梁边、中跨合拢段外刚性支撑构造图箱梁边跨18号节段一般构造图箱梁18号节段钢筋布置图箱梁18号节段端横隔板钢筋布置图-gg箱梁18节段钢束加强、定位钢筋布置图箱梁齿板一般构造图、上齿板钢筋布置图箱梁下齿板钢筋布置图箱梁顶面现浇层钢筋布置图、箱梁施工预拱度图引桥30T梁平面布置图引桥30mT梁设伸缩缝端预留槽加厚部钢筋布置图(320)墩台基础控制点坐标表、45号主墩一般构造图45号主墩墩身钢筋布置图45号主墩墩身劲性骨架布置示意图45号主墩承台钢筋布置图45号主墩承
5、台冷却管布置图45号主墩基桩钢筋布置图过渡墩、引桥墩一般构造图（不含15、16号墩）测设线引桥桥墩一般构造图（15，16号墩）过渡墩帽梁钢筋布置图过渡墩墩身钢筋布置图过渡墩墩身劲性骨架布置图引桥桥墩帽梁钢筋布置图（实心墩）引桥桥墩帽梁钢筋布置图（双柱墩）引桥双柱墩墩柱基桩钢筋布置图引桥双柱墩基桩钢筋布置图引桥双柱墩墩柱系梁钢筋布置图引桥双柱墩基桩系梁钢筋布置图引桥实心墩墩身钢筋布置图引桥实心墩、空心墩承台钢筋布置图引桥实心墩、空心墩承台冷却管布置图引桥实心墩、墩心墩基桩钢筋布置图桥台承台钢筋图、桥台基桩钢筋图大桥支座垫石平面布置图D320型伸缩缝安装示意图、支座垫石钢筋布置图桩基础混凝土质量检
6、测管构造图主桥盆式支座安装及构造示意图主桥箱梁检修楼梯布置图右幅桥0号桥台台帽、挡块钢筋布置图桥台台帽、背墙、挡块钢筋布置图桥台一般构造图、桥台耳墙钢筋布置图clues specific of petition reported where mention will check, strongly prevent employing oversight and sick promoted. To ensure the general air fresh. General culture is a place of political ecology barometer, directly re
7、lated to the construction of the contingent of cadres. To serious general discipline, break geographical sector boundaries to thing optional people, and people gang phase suitable, and with its Director, on those insisted principles, and practical officer, and not run dont and long-term in hard post
8、 work of cadres to focus using, on those energy not concentrated, and work not relief, obsessed with run kind, and take antenna of cadres strongly without, real put those wants to dry may dry active dry, and capable will dry at dry of excellent cadres selected out, and with up. To perfect the cadre
9、employment system. Reinforcement for the employment-oriented, set the cadre system of assessment of science, strictly implement the leading cadres promoted or demoted several provisions as soon as possible form on can, mediocrity, and effective mechanisms for the Elimination of inferior. Especially
10、central to request, to further strengthen down play, detailed down situations, a clear under standard, found unfit for active duty and timely adjustment of cadres. First half of the year, not only overweight Deputy-level leadership positions in several digestive tasks to complete, and for those who
11、cant, dont want to, not as cadres should also have to take measures, training of the training, this . Exciting spirit, dare to play, pioneer mission, struggling to get out of the forest development road of transformation. We to in future of work in the, we to according to Jia Shuji of requirements, deep understand on
