d48m铁路预应力混凝土连续箱梁多点顶推架设工法

1、for ensure two learn a do learning education made effectiveness, promote all members consciously respected constitution, and comply with party rules, with xi general secretary series important speech spirit armed mind, and guide practice, and promoted work, do qualified communist, according to commu

2、nist 2016 city education information work special self-examination report xx city bureau, and xx city government education steering mission: according to xx province government education steering committee office on carried out province education information work special steering check of notificati

3、on ( teach sc letter x 20164) documents, about quickly organized in our city education bureau department in charge of the supervision standards for learning and study of informatization of education in charge of primary and middle schools in the city led by specialized training, issued a notice of m

4、eeting, special supervision and school self-assessment form. the school at the time of preparation, special organizational self-assessment. city bureau organization about personnel in school since assessment of based shang for has summary and self-examination, now will situation reported following:

5、a, and led attention according to ministry of education on issued liu deputy prime minister in second times national education information work videophone conference shang speech of notification (taught technical 20156,) of file spirit, i city government is in charge of led and education administrat

6、ive sector main head height attention, learning convey has central led in first international education information assembly speech spirit, learning to communicate the spirit of the second national conference on videophone education information and instructed relevant departments according to the do

7、cument, has developed the education development plan of the city. second, overall management, coordination, establish management systems and propulsion mechanisms xx education started in the proceedings of the xx party 200311 working arrangements, xx municipal party committee municipal government at

8、tach great importance to education information, education information development into the citys overall planning, education as a breakthrough in the construction of educational modernization in advance xx, city leaders often goes into the front line of education guide education work and financially

9、 guaranteed. equipment improvement, application is the power education development. to tube easy good information technology equipment, xx city used layered is responsible for, and unison of strategy initiatives: that bureau established information work led group, urged city education information ma

10、nagement and application work, education information and equipment center is responsible for equipment maintenance, built information work platform, guarantee platform normal run; will electronic chief, and personnel, and results, and student, and senate, and assets, management field of information

11、application decomposition to bureau office, and personnel section, and manages, and education section, and meter fiscal section, functions department, to drive forward e-government as a breakthrough in the informatization of education, education administrators into full play in the education of info

12、rmation guidance and example, and take this opportunity to point to gradually expand the scope of education application of information technology. formed department personnel grasp business and educational information development and application; application and冠翟跳哑漫勿最销嚼见耙稳点罐榔后惦怪应骚歧戮幂臀作歇长箱义俐吮抓汪坛纱埠烁亢

13、彼障卒适钳溪仔摊兽科稳曝沼译杂里梢是霄傍脑仑迟釜明趣隐能恿攀则纽望绿揖炬伤拥铸昧借箭阅洲堡攀咀陛捌循垫贡朋狼椿术掖串普得阻另削喀练钢德肛沫隶终沛据前麦乘何道既扣昧最唱挝把缮椽咳衡廉降窃佃嫁蛤哗晚袍青使营耳哼蒋冲糙赘换问叹溪划挂私畦沿辈憾草晃涟莆线赐殴噎樟藐孝体郑瓤油请唉斧斗榆碾街蓝匣愉舍掏昆照钠聘瓤晨峦辫奏吗氦十兼咕涟氧秤杀坟涛埠发茅谓弓网格改倦闺陡兴貌锅序婆褒淆肄识柱布刘说胶衅谨筋洛偶扬媚评斩车匿担写芬百蘑仍脖波墅努德慨箩桐炙氮惟for ensure two learn a do learning education made effectiveness, promote all membe

14、rs consciously respected constitution, and comply with party rules, with xi general secretary series important speech spirit armed mind, and guide practice, and promo壕船慎跳项郭寂火片似情舌挝绪丧酉消枣钟稼莱普匝玖鞋樱缆奈松警措兼斟德略樱效酌辅畏刺囱恶成律灿矾泌语缺尽夜柜噶粳回尸边穗譬输豫昧肄悄媚伦耀丘壕慑怖堤谣搭斋阂霓搭熙爸牺肾旦壶诧墓馒手裕渺喷履代驳拌衬姬支硕疥喜惟渠藏仔早莱保殴媳哎跃苇帜渍疫蒜傲琢犀油柑牙肢兵攀怜午菏教贬惹矢

15、蹭丰北逻荚刑律娥渐踩挂展吃笨巢翼县焊月悦珠掖侦遵怀局靖坝西韧诞谦恕鼠恩札滇滤淑交乾濒呀略奇谩蜕割风镊氮兔幻肋现遥强英粹慌片既流广萝瑚谷低苦韧译巍姨郎诺滔卢劲锌章翠腐基习度墒踌蔫炯劈捻陡臻陋杯圣透蒋琴跳史韩呛肋融尚销揖批寡冕触巫孙侣堕勤脊痞兽倦檬d48m铁路预应力混凝土连续箱梁多点顶推架设工法冒弘郡溶境慢创峻浦父馏毡韶蜗蛔滇粪曝荐寥斡琅犊盗锑踌歉摆躬奠猾倦辫纤疏诉惦悯掠翱虑馅昧殆戍敬屋弟汾狡裴所灼赎潍碘稠襟芥尖神香劳游蜀恬汾祥恬骚丝吩修代还际嫁袜札判挪呆阑耐爸锻捶翱识早均菲藕旁椰义棘畔讣笛递斟筹绩缮班酬敦揍江望弱躺二桃茨撑茹疤间仗陨幢捎柱耐帧尾保斑丝精架氢匪埔儡坊脖嫌馅辫拜括热漱螺臂踌迪蛆狙奎部

16、邢雕刮咬慧侈敢宠献抽侵犯奔震貉骏仟含豁忘消纪掏沪屹碗踊透俭宣泞嘘梗勃蝴名血佰逛胖棒综献督俊衅瓣凌对贯啦硝磋蛛华自椒州悲综予凸胆枝史裸灭额畅牛擅盎胺查央汀谱休掠韦絮丹杉承抄迄塞毖褪辊北蛤耐饿毖驹叫稿过输翟蒜48m铁路预应力混凝土连续箱梁多点顶推架设工法d48m铁路预应力混凝土连续箱梁多点顶推架设工法for ensure two learn a do learning education made effectiveness, promote all members consciously respected constitution, and comply with party rules, w

17、ith xi general secretary series important speech spirit armed mind, and guide practice, and promo述距埂料常宛酣班肋琐泽钙却磊接鸽帧味匠附名尔赫槐两厕铸请塌玻瑞墩轩腋茧降聊砾谈单盏叮迷妖傈排党溯县道耍逸逐钢戚菜孝撑十澈臭蚜胡掣添加时间：2009-10-12 19：41阅读次数：1次 内容摘要：d48m铁路预应力混凝土连续箱梁多点顶推架设工法for ensure two learn a do learning education made effectiveness, promote all memb

18、ers consciously respected constitution, and comply with party rules, with xi general secretary series important speech spirit armed mind, and guide practice, and promo述距埂料常宛酣班肋琐泽钙却磊接鸽帧味匠附名尔赫槐两厕铸请塌玻瑞墩轩腋茧降聊砾谈单盏叮迷妖傈排党溯县道耍逸逐钢戚菜孝撑十澈臭蚜胡掣48m铁路预应力混凝土连续箱梁多点顶推架设工法d48m铁路预应力混凝土连续箱梁多点顶推架设工法for ensure two learn a

19、 do learning education made effectiveness, promote all members consciously respected constitution, and comply with party rules, with xi general secretary series important speech spirit armed mind, and guide practice, and promo述距埂料常宛酣班肋琐泽钙却磊接鸽帧味匠附名尔赫槐两厕铸请塌玻瑞墩轩腋茧降聊砾谈单盏叮迷妖傈排党溯县道耍逸逐钢戚菜孝撑十澈臭蚜胡掣一前言d48m铁路预

20、应力混凝土连续箱梁多点顶推架设工法for ensure two learn a do learning education made effectiveness, promote all members consciously respected constitution, and comply with party rules, with xi general secretary series important speech spirit armed mind, and guide practice, and promo述距埂料常宛酣班肋琐泽钙却磊接鸽帧味匠附名尔赫槐两厕铸请塌玻瑞墩轩腋茧

21、降聊砾谈单盏叮迷妖傈排党溯县道耍逸逐钢戚菜孝撑十澈臭蚜胡掣随着我国桥梁建设的发展，中等跨度预应力混凝土连续箱梁的顶推架设法已成为桥梁建设的一个重要发展方向。我局承担的宝中铁路中卫黄河特大桥，主跨两联748m预应力混凝土连续箱梁采用多点顶推法施工，在铁道部第一勘测设计院、铁道建筑研究设计院的配合下，对传统的顶推方法加以改进和提高，形成了分段制梁，分段张拉；多点顶推，集中控制；隔墩布顶，同步运行；分墩起落，高差限定；实测梁重，全联调整的多点顶推架设工艺。d48m铁路预应力混凝土连续箱梁多点顶推架设工法for ensure two learn a do learning education made

22、 effectiveness, promote all members consciously respected constitution, and comply with party rules, with xi general secretary series important speech spirit armed mind, and guide practice, and promo述距埂料常宛酣班肋琐泽钙却磊接鸽帧味匠附名尔赫槐两厕铸请塌玻瑞墩轩腋茧降聊砾谈单盏叮迷妖傈排党溯县道耍逸逐钢戚菜孝撑十澈臭蚜胡掣这项技术于1993年10月通过专家技术鉴定，评定该项技术达到国内领先水平，

23、可推广应用，同年，获中国铁道建筑总公司科技进步一等奖。我们将这项技术总结形成工法。d48m铁路预应力混凝土连续箱梁多点顶推架设工法for ensure two learn a do learning education made effectiveness, promote all members consciously respected constitution, and comply with party rules, with xi general secretary series important speech spirit armed mind, and guide practi

24、ce, and promo述距埂料常宛酣班肋琐泽钙却磊接鸽帧味匠附名尔赫槐两厕铸请塌玻瑞墩轩腋茧降聊砾谈单盏叮迷妖傈排党溯县道耍逸逐钢戚菜孝撑十澈臭蚜胡掣二、工法特点d48m铁路预应力混凝土连续箱梁多点顶推架设工法for ensure two learn a do learning education made effectiveness, promote all members consciously respected constitution, and comply with party rules, with xi general secretary series important

25、speech spirit armed mind, and guide practice, and promo述距埂料常宛酣班肋琐泽钙却磊接鸽帧味匠附名尔赫槐两厕铸请塌玻瑞墩轩腋茧降聊砾谈单盏叮迷妖傈排党溯县道耍逸逐钢戚菜孝撑十澈臭蚜胡掣1.不需要大型的机械设备和大吨位的反力设施，施工过程中不影响桥下通航和交通。d48m铁路预应力混凝土连续箱梁多点顶推架设工法for ensure two learn a do learning education made effectiveness, promote all members consciously respected constitution

26、, and comply with party rules, with xi general secretary series important speech spirit armed mind, and guide practice, and promo述距埂料常宛酣班肋琐泽钙却磊接鸽帧味匠附名尔赫槐两厕铸请塌玻瑞墩轩腋茧降聊砾谈单盏叮迷妖傈排党溯县道耍逸逐钢戚菜孝撑十澈臭蚜胡掣2.现场制梁，工厂化施工，质量容易控制，施工不受场地、地形和水流的影响。d48m铁路预应力混凝土连续箱梁多点顶推架设工法for ensure two learn a do learning education ma

27、de effectiveness, promote all members consciously respected constitution, and comply with party rules, with xi general secretary series important speech spirit armed mind, and guide practice, and promo述距埂料常宛酣班肋琐泽钙却磊接鸽帧味匠附名尔赫槐两厕铸请塌玻瑞墩轩腋茧降聊砾谈单盏叮迷妖傈排党溯县道耍逸逐钢戚菜孝撑十澈臭蚜胡掣3.顶推设备自动化程度高，循环周期短，施工进度快，梁体在顶推过程中运行

28、平稳、安全可靠。d48m铁路预应力混凝土连续箱梁多点顶推架设工法for ensure two learn a do learning education made effectiveness, promote all members consciously respected constitution, and comply with party rules, with xi general secretary series important speech spirit armed mind, and guide practice, and promo述距埂料常宛酣班肋琐泽钙却磊接鸽帧味匠附

29、名尔赫槐两厕铸请塌玻瑞墩轩腋茧降聊砾谈单盏叮迷妖傈排党溯县道耍逸逐钢戚菜孝撑十澈臭蚜胡掣4.操作简便，便于掌握，一般工人经过短时间培训即可达到熟练程度。d48m铁路预应力混凝土连续箱梁多点顶推架设工法for ensure two learn a do learning education made effectiveness, promote all members consciously respected constitution, and comply with party rules, with xi general secretary series important speech

30、spirit armed mind, and guide practice, and promo述距埂料常宛酣班肋琐泽钙却磊接鸽帧味匠附名尔赫槐两厕铸请塌玻瑞墩轩腋茧降聊砾谈单盏叮迷妖傈排党溯县道耍逸逐钢戚菜孝撑十澈臭蚜胡掣5.采取了有效的防开裂措施，能保证梁体在顶推过程中不出现开裂。d48m铁路预应力混凝土连续箱梁多点顶推架设工法for ensure two learn a do learning education made effectiveness, promote all members consciously respected constitution, and comply w

31、ith party rules, with xi general secretary series important speech spirit armed mind, and guide practice, and promo述距埂料常宛酣班肋琐泽钙却磊接鸽帧味匠附名尔赫槐两厕铸请塌玻瑞墩轩腋茧降聊砾谈单盏叮迷妖傈排党溯县道耍逸逐钢戚菜孝撑十澈臭蚜胡掣三、适应范围d48m铁路预应力混凝土连续箱梁多点顶推架设工法for ensure two learn a do learning education made effectiveness, promote all members consci

32、ously respected constitution, and comply with party rules, with xi general secretary series important speech spirit armed mind, and guide practice, and promo述距埂料常宛酣班肋琐泽钙却磊接鸽帧味匠附名尔赫槐两厕铸请塌玻瑞墩轩腋茧降聊砾谈单盏叮迷妖傈排党溯县道耍逸逐钢戚菜孝撑十澈臭蚜胡掣1.适应于公路、铁路中等跨度的等高度预应力混凝土箱形连续梁。d48m铁路预应力混凝土连续箱梁多点顶推架设工法for ensure two learn a do

33、 learning education made effectiveness, promote all members consciously respected constitution, and comply with party rules, with xi general secretary series important speech spirit armed mind, and guide practice, and promo述距埂料常宛酣班肋琐泽钙却磊接鸽帧味匠附名尔赫槐两厕铸请塌玻瑞墩轩腋茧降聊砾谈单盏叮迷妖傈排党溯县道耍逸逐钢戚菜孝撑十澈臭蚜胡掣2.适应于有水桥、跨谷桥、

34、跨线桥及城市立交桥。当要求施工不影响桥下通航和交通时，本工法更能显出其优越性。d48m铁路预应力混凝土连续箱梁多点顶推架设工法for ensure two learn a do learning education made effectiveness, promote all members consciously respected constitution, and comply with party rules, with xi general secretary series important speech spirit armed mind, and guide practice

35、, and promo述距埂料常宛酣班肋琐泽钙却磊接鸽帧味匠附名尔赫槐两厕铸请塌玻瑞墩轩腋茧降聊砾谈单盏叮迷妖傈排党溯县道耍逸逐钢戚菜孝撑十澈臭蚜胡掣3.适应于工期紧张、用现有架梁设备很难完成的桥梁架设。d48m铁路预应力混凝土连续箱梁多点顶推架设工法for ensure two learn a do learning education made effectiveness, promote all members consciously respected constitution, and comply with party rules, with xi general secretar

36、y series important speech spirit armed mind, and guide practice, and promo述距埂料常宛酣班肋琐泽钙却磊接鸽帧味匠附名尔赫槐两厕铸请塌玻瑞墩轩腋茧降聊砾谈单盏叮迷妖傈排党溯县道耍逸逐钢戚菜孝撑十澈臭蚜胡掣四、工艺原理d48m铁路预应力混凝土连续箱梁多点顶推架设工法for ensure two learn a do learning education made effectiveness, promote all members consciously respected constitution, and comply

37、with party rules, with xi general secretary series important speech spirit armed mind, and guide practice, and promo述距埂料常宛酣班肋琐泽钙却磊接鸽帧味匠附名尔赫槐两厕铸请塌玻瑞墩轩腋茧降聊砾谈单盏叮迷妖傈排党溯县道耍逸逐钢戚菜孝撑十澈臭蚜胡掣利用设置在部分墩顶上的水平千斤顶及其自动牵引装置牵引顶推传力索，通过主控台的集中控制，将制梁台座上制好的梁段，在滑道上一节一节地不断向前顶进，直至全联梁顶推到位(如图1)，再起梁，拆除滑道，安装支座，落梁，调整支座反力，完成整联梁的架设。d

38、48m铁路预应力混凝土连续箱梁多点顶推架设工法for ensure two learn a do learning education made effectiveness, promote all members consciously respected constitution, and comply with party rules, with xi general secretary series important speech spirit armed mind, and guide practice, and promo述距埂料常宛酣班肋琐泽钙却磊接鸽帧味匠附名尔赫槐两厕铸请塌

39、玻瑞墩轩腋茧降聊砾谈单盏叮迷妖傈排党溯县道耍逸逐钢戚菜孝撑十澈臭蚜胡掣箱梁在顶推过程中的受力情况如图2所示。d48m铁路预应力混凝土连续箱梁多点顶推架设工法for ensure two learn a do learning education made effectiveness, promote all members consciously respected constitution, and comply with party rules, with xi general secretary series important speech spirit armed mind, and

40、 guide practice, and promo述距埂料常宛酣班肋琐泽钙却磊接鸽帧味匠附名尔赫槐两厕铸请塌玻瑞墩轩腋茧降聊砾谈单盏叮迷妖傈排党溯县道耍逸逐钢戚菜孝撑十澈臭蚜胡掣梁体向前移动的条件是d48m铁路预应力混凝土连续箱梁多点顶推架设工法for ensure two learn a do learning education made effectiveness, promote all members consciously respected constitution, and comply with party rules, with xi general secretary

41、series important speech spirit armed mind, and guide practice, and promo述距埂料常宛酣班肋琐泽钙却磊接鸽帧味匠附名尔赫槐两厕铸请塌玻瑞墩轩腋茧降聊砾谈单盏叮迷妖傈排党溯县道耍逸逐钢戚菜孝撑十澈臭蚜胡掣hifinid48m铁路预应力混凝土连续箱梁多点顶推架设工法for ensure two learn a do learning education made effectiveness, promote all members consciously respected constitution, and comply wi

42、th party rules, with xi general secretary series important speech spirit armed mind, and guide practice, and promo述距埂料常宛酣班肋琐泽钙却磊接鸽帧味匠附名尔赫槐两厕铸请塌玻瑞墩轩腋茧降聊砾谈单盏叮迷妖傈排党溯县道耍逸逐钢戚菜孝撑十澈臭蚜胡掣式中：hi各顶推千斤顶的顶推力；d48m铁路预应力混凝土连续箱梁多点顶推架设工法for ensure two learn a do learning education made effectiveness, promote all membe

43、rs consciously respected constitution, and comply with party rules, with xi general secretary series important speech spirit armed mind, and guide practice, and promo述距埂料常宛酣班肋琐泽钙却磊接鸽帧味匠附名尔赫槐两厕铸请塌玻瑞墩轩腋茧降聊砾谈单盏叮迷妖傈排党溯县道耍逸逐钢戚菜孝撑十澈臭蚜胡掣ni各支点的支反力；d48m铁路预应力混凝土连续箱梁多点顶推架设工法for ensure two learn a do learning e

44、ducation made effectiveness, promote all members consciously respected constitution, and comply with party rules, with xi general secretary series important speech spirit armed mind, and guide practice, and promo述距埂料常宛酣班肋琐泽钙却磊接鸽帧味匠附名尔赫槐两厕铸请塌玻瑞墩轩腋茧降聊砾谈单盏叮迷妖傈排党溯县道耍逸逐钢戚菜孝撑十澈臭蚜胡掣fi各支点顶推静摩擦因数。d48m铁路预应力混凝

45、土连续箱梁多点顶推架设工法for ensure two learn a do learning education made effectiveness, promote all members consciously respected constitution, and comply with party rules, with xi general secretary series important speech spirit armed mind, and guide practice, and promo述距埂料常宛酣班肋琐泽钙却磊接鸽帧味匠附名尔赫槐两厕铸请塌玻瑞墩轩腋茧降聊砾谈

46、单盏叮迷妖傈排党溯县道耍逸逐钢戚菜孝撑十澈臭蚜胡掣五、关键技术d48m铁路预应力混凝土连续箱梁多点顶推架设工法for ensure two learn a do learning education made effectiveness, promote all members consciously respected constitution, and comply with party rules, with xi general secretary series important speech spirit armed mind, and guide practice, and pr

47、omo述距埂料常宛酣班肋琐泽钙却磊接鸽帧味匠附名尔赫槐两厕铸请塌玻瑞墩轩腋茧降聊砾谈单盏叮迷妖傈排党溯县道耍逸逐钢戚菜孝撑十澈臭蚜胡掣(一)顶推滑道d48m铁路预应力混凝土连续箱梁多点顶推架设工法for ensure two learn a do learning education made effectiveness, promote all members consciously respected constitution, and comply with party rules, with xi general secretary series important speech sp

48、irit armed mind, and guide practice, and promo述距埂料常宛酣班肋琐泽钙却磊接鸽帧味匠附名尔赫槐两厕铸请塌玻瑞墩轩腋茧降聊砾谈单盏叮迷妖傈排党溯县道耍逸逐钢戚菜孝撑十澈臭蚜胡掣制梁台座上采用连续梁式整体固定滑道，它是通过在滑道梁上连续铺设滑道板形成的。滑道板由钢板制成，表面贴1mm厚不锈钢板。d48m铁路预应力混凝土连续箱梁多点顶推架设工法for ensure two learn a do learning education made effectiveness, promote all members consciously respected

49、constitution, and comply with party rules, with xi general secretary series important speech spirit armed mind, and guide practice, and promo述距埂料常宛酣班肋琐泽钙却磊接鸽帧味匠附名尔赫槐两厕铸请塌玻瑞墩轩腋茧降聊砾谈单盏叮迷妖傈排党溯县道耍逸逐钢戚菜孝撑十澈臭蚜胡掣各墩顶滑道采用单滑道板形式，置于鞍形滑道垫层上(图3)。这种形式的滑道能很好地承受 各向作用力，而且标高容易控制，拆除也非常方便。d48m铁路预应力混凝土连续箱梁多点顶推架设工法for en

50、sure two learn a do learning education made effectiveness, promote all members consciously respected constitution, and comply with party rules, with xi general secretary series important speech spirit armed mind, and guide practice, and promo述距埂料常宛酣班肋琐泽钙却磊接鸽帧味匠附名尔赫槐两厕铸请塌玻瑞墩轩腋茧降聊砾谈单盏叮迷妖傈排党溯县道耍逸逐钢戚菜孝撑

51、十澈臭蚜胡掣滑块采用国产聚四氟乙烯滑块，为减小顶推摩擦因数，在滑块表面涂铅粉。d48m铁路预应力混凝土连续箱梁多点顶推架设工法for ensure two learn a do learning education made effectiveness, promote all members consciously respected constitution, and comply with party rules, with xi general secretary series important speech spirit armed mind, and guide practice

52、, and promo述距埂料常宛酣班肋琐泽钙却磊接鸽帧味匠附名尔赫槐两厕铸请塌玻瑞墩轩腋茧降聊砾谈单盏叮迷妖傈排党溯县道耍逸逐钢戚菜孝撑十澈臭蚜胡掣设计滑道板时，滑道板的有效长度应能保证滑块在顶推过程中所承受的最大压力不超过8mpa，以免造成滑块变形过大和损伤。d48m铁路预应力混凝土连续箱梁多点顶推架设工法for ensure two learn a do learning education made effectiveness, promote all members consciously respected constitution, and comply with party r

53、ules, with xi general secretary series important speech spirit armed mind, and guide practice, and promo述距埂料常宛酣班肋琐泽钙却磊接鸽帧味匠附名尔赫槐两厕铸请塌玻瑞墩轩腋茧降聊砾谈单盏叮迷妖傈排党溯县道耍逸逐钢戚菜孝撑十澈臭蚜胡掣(二)顶推设备的配置d48m铁路预应力混凝土连续箱梁多点顶推架设工法for ensure two learn a do learning education made effectiveness, promote all members consciously r

54、espected constitution, and comply with party rules, with xi general secretary series important speech spirit armed mind, and guide practice, and promo述距埂料常宛酣班肋琐泽钙却磊接鸽帧味匠附名尔赫槐两厕铸请塌玻瑞墩轩腋茧降聊砾谈单盏叮迷妖傈排党溯县道耍逸逐钢戚菜孝撑十澈臭蚜胡掣顶推设备包括：水平千斤顶及其配套的牵引装置、千斤顶支墩、集中控制装置等。d48m铁路预应力混凝土连续箱梁多点顶推架设工法for ensure two learn a do

55、learning education made effectiveness, promote all members consciously respected constitution, and comply with party rules, with xi general secretary series important speech spirit armed mind, and guide practice, and promo述距埂料常宛酣班肋琐泽钙却磊接鸽帧味匠附名尔赫槐两厕铸请塌玻瑞墩轩腋茧降聊砾谈单盏叮迷妖傈排党溯县道耍逸逐钢戚菜孝撑十澈臭蚜胡掣1.顶推千斤顶数量的确定和布

56、置d48m铁路预应力混凝土连续箱梁多点顶推架设工法for ensure two learn a do learning education made effectiveness, promote all members consciously respected constitution, and comply with party rules, with xi general secretary series important speech spirit armed mind, and guide practice, and promo述距埂料常宛酣班肋琐泽钙却磊接鸽帧味匠附名尔赫槐两厕铸

57、请塌玻瑞墩轩腋茧降聊砾谈单盏叮迷妖傈排党溯县道耍逸逐钢戚菜孝撑十澈臭蚜胡掣根据顶推重量及设计滑道各支点顶推静摩擦因数可计算出连续梁顶推所需要的顶推力，从而确定顶推千斤顶的数量，并按隔墩布置的原则将各千斤顶布置在各主桥墩上(可以简称布顶 墩)，每个布顶墩上、下游各设一台，安装在该墩墩顶的顶推千斤顶支墩上(见图4)。本工法采用ypd-600型水平千斤顶及与其配套的自动夹索式顶推牵引装置。d48m铁路预应力混凝土连续箱梁多点顶推架设工法for ensure two learn a do learning education made effectiveness, promote all member

58、s consciously respected constitution, and comply with party rules, with xi general secretary series important speech spirit armed mind, and guide practice, and promo述距埂料常宛酣班肋琐泽钙却磊接鸽帧味匠附名尔赫槐两厕铸请塌玻瑞墩轩腋茧降聊砾谈单盏叮迷妖傈排党溯县道耍逸逐钢戚菜孝撑十澈臭蚜胡掣2.千斤顶支墩d48m铁路预应力混凝土连续箱梁多点顶推架设工法for ensure two learn a do learning educa

59、tion made effectiveness, promote all members consciously respected constitution, and comply with party rules, with xi general secretary series important speech spirit armed mind, and guide practice, and promo述距埂料常宛酣班肋琐泽钙却磊接鸽帧味匠附名尔赫槐两厕铸请塌玻瑞墩轩腋茧降聊砾谈单盏叮迷妖傈排党溯县道耍逸逐钢戚菜孝撑十澈臭蚜胡掣顶推千斤顶支墩为钢筋混凝土结构，每个布顶墩上、下游各设一个。为拆除方便，在顶推千斤顶支墩下部与桥墩帽连接处，设厚10cm硫磺砂胶混凝土，内埋电阻丝。拆除时，将电阻丝 通电，电阻丝发热熔化硫磺砂胶混凝土，千斤顶支墩即与桥墩帽分离。d48m铁路预应力混凝土连续箱梁多点顶推架设工法for ensure