高速公路互通匝道桥典型病害分析及加固设计方案探讨.doc
《高速公路互通匝道桥典型病害分析及加固设计方案探讨.doc》由会员分享,可在线阅读,更多相关《高速公路互通匝道桥典型病害分析及加固设计方案探讨.doc(13页珍藏版)》请在咨信网上搜索。
1、精选资料毕 业 设 计(论 文)外 文 参 考 资 料 及 译 文译文题目: Freeway Interchange Ramp Bridge Typical Disease Analysis and Design of Reinforcement学生姓名: 计佳伟 学 号: 0606110105 专 业: 土 木 工 程 所在学院: 建 筑 工 程 学 院 指导教师: 于 洪 宾 职 称: 讲 师 日期: 2010年 2 月 5日可修改编辑Freeway Interchange Ramp Bridge Typical Disease Analysis and Design of Reinfor
2、cementAbstract: In this paper, the Freeway Interchange Ramp Bridge to the typical disease detection, analysis of the causes of disease, and to propose a detailed reinforcement design for the type of bridge type of disease analysis and reinforcement design of a certain reference.1 OverviewInterchange
3、 Ramp Bridge is located in C cauda equina cauda equina exchange area, length of 652.50m, the bridge cross-combination of 5 25m +1 20m +2 30m +2 25m +5 25m +5 25m +5 25m +1 21m ; upper structure such as cross-section of prestressed concrete continuous rigid frame box girder; flat curve of minimum rad
4、ius of 127.75m. Substructure for the wall piers, drilled pile foundation, integral abutment, expand base; ball bearing; bridge is located 80 joints.In a routine maintenance inspection found that emergence of multi-span box girder webs vertical cracks in floor box girder vertical and horizontal direc
5、tion and diagonal cracks appeared. Diagonal cracks appeared beam web. Pier upper vertical and annular cracks appear, some of Pier lateral deviation occurs. For this reason, disease detection units conducted a special inspection, analysis of the causes of the disease, and the corresponding reinforcem
6、ent design.2 Ramp Bridge Detection of Disease2.1 The test content and test methodsThe use of bridge inspection vehicle to provide a platform for the bridge on the ramp box Liang Liang body boards, web and flange panels to conduct a comprehensive examination, and Pier appearance and deviation, as wel
7、l as working conditions, bearing a detailed inspection.(1) Pier and beam physical appearance test: close-mainly visual-based and found that the issue of detailed observations. Cracks found in the location of Hong Bi identified and photographed and use Gauge, crack width and depth of instrument instr
8、ument for crack length, width, depth of observation and recording.(2) supports working conditions inspections: visual damage, abnormal deformation, etc., with or without obvious signs of deformation, pad stone damage and so on. Found to have bearing deformation, displacement, etc., were used vernier
9、 caliper, pad feet etc. measurements.(3) Pier variable-bit observation: the bridge are curved bridge, the piers for the wall piers, while a high degree of both large pier. In order to ensure measurement accuracy, the deviation Pier Pier to take in each horizontal and vertical set up in front of Tota
10、l Station, Pier were measured horizontal and vertical deviation.2.2 Test resultsThrough the above test to be beam body, Pier, and supports diseases, summary records are as follows:(1) Beams and Pier cracks. Diagonal web cracks in beam focused on cross-fifth, 10th cross, 11th Cross; girder webs verti
11、cal and bottom vertical, horizontal and diagonal cracks concentrated in the third cross, the fourth cross, the first 14 Cross, 17th Cross, 19th cross, 25 cross.8 Pier Top 4 5m away from the pier within the transverse cracks and vertical cracks appeared.(2) 14 bearing lateral slip occurs, the largest
12、 displacement of 4.0cm. Most bolt nut rust. One of the niche that supports the upper and lower bolt.(3) Pier maximum horizontal deviation of Pier 13-14, angle of inclination of 6.1 ; vertical deviation up to No. 6 pier, but the angle of inclination of 2.9 .3 Analysis of Disease(1) The end of the bea
13、m web of diagonal cracks appeared mainly in the fifth cross, 10th cross, 11th inter-installed by the end of the beam position of expansion joints. As the ramp bridge flat curve radius smaller composite box girder at the moment and torque under the action of expansion joints near the end of the beam
14、web may be partially affected by the phenomenon of shear is too large, and thus give rise diagonal cracks.(2) The vertical and bottom girder webs vertical, horizontal and diagonal cracks concentrated in the third cross, 4th cross, 14th cross, 17th Cross, 19th cross, 25 cross. The emergence of these
15、cracks, with the ramp bridge flat curve radius smaller, box girder, moment and torque combined effect clearly related, and because of the passage of overloaded vehicles, increasing the appearance of cracks.(3) Pier cracks arise mainly from the top of the 4 5m in the Department, this is because the b
16、ridge will be part of a continuous rigid frame structure, the piers in the overall coordination of deformation force after the pier from the pier top and bottom about 1 / 3 by the power the most, so that the site easy to cracking phenomenon occurs.4 Structural reinforcementFor a typical disease of t
17、he bridge appeared, after repeated checking, taking into account experience of other similar bridges reinforced, the following reinforcement.4.1 Superstructure Reinforcement(1) C ramp Pier No. 5 to No. 4 top-side box girder pier on both sides of web 10 to the top of Pier No. 9, on both sides of pier
18、-side box girder webs, on the 10th to the pier top 11 on both sides of pier-side box girder web, need to adopt CFRP reinforcement.(2) The reinforcement of the range of 3m by end of the beam section of the entire web, vertical and vertical 30cm wide and carbon fiber cloth are used, spacing 20cm.4.2 R
19、eplacement Bearing(1) the need for bearing replacement pier No.: C Ramp Bridge Pier 15, Pier 14, by side. Replaced the original bearing a single, bi-directional sliding pot rubber bearings, vertical to the flat curve of the inside of the bridge to replace GPZ (II) 2.5DX, the outer curve replaced GPZ
20、 (II) 2.5SX.(2) A temporary pier top reinforced top beam fulcrum.4.3 substructure reinforcementThe analysis considered pairs of C ramp 10, 15, 20, pier substructure reinforcement. Substructure strengthening in three areas:(1) pier reinforcement.As a vase style of the original pier pier, pier in the
21、lower part of the body size of 200cm 120cm, and with 25cm 15cm chamfered rectangular cross-section segment of the upper half portion of 410cm tall vase style widened section of pier top plane size is 400cm 140cm, and with 10cm 6cm chamfer. Pier reinforcement symmetrical reinforcement, the vertical c
22、enter line of the old and new piers coincidence. Reinforced in the lower part of the pier size of 360cm 180cm, and with 25cm 15cm chamfered rectangular cross-section segment of the upper half portion of 410cm tall vase style widened section of pier top plane size is 560cm 180cm, and with 25cm 15cm c
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- 高速公路 互通 匝道 典型 病害 分析 加固 设计方案 探讨
1、咨信平台为文档C2C交易模式,即用户上传的文档直接被用户下载,收益归上传人(含作者)所有;本站仅是提供信息存储空间和展示预览,仅对用户上传内容的表现方式做保护处理,对上载内容不做任何修改或编辑。所展示的作品文档包括内容和图片全部来源于网络用户和作者上传投稿,我们不确定上传用户享有完全著作权,根据《信息网络传播权保护条例》,如果侵犯了您的版权、权益或隐私,请联系我们,核实后会尽快下架及时删除,并可随时和客服了解处理情况,尊重保护知识产权我们共同努力。
2、文档的总页数、文档格式和文档大小以系统显示为准(内容中显示的页数不一定正确),网站客服只以系统显示的页数、文件格式、文档大小作为仲裁依据,平台无法对文档的真实性、完整性、权威性、准确性、专业性及其观点立场做任何保证或承诺,下载前须认真查看,确认无误后再购买,务必慎重购买;若有违法违纪将进行移交司法处理,若涉侵权平台将进行基本处罚并下架。
3、本站所有内容均由用户上传,付费前请自行鉴别,如您付费,意味着您已接受本站规则且自行承担风险,本站不进行额外附加服务,虚拟产品一经售出概不退款(未进行购买下载可退充值款),文档一经付费(服务费)、不意味着购买了该文档的版权,仅供个人/单位学习、研究之用,不得用于商业用途,未经授权,严禁复制、发行、汇编、翻译或者网络传播等,侵权必究。
4、如你看到网页展示的文档有www.zixin.com.cn水印,是因预览和防盗链等技术需要对页面进行转换压缩成图而已,我们并不对上传的文档进行任何编辑或修改,文档下载后都不会有水印标识(原文档上传前个别存留的除外),下载后原文更清晰;试题试卷类文档,如果标题没有明确说明有答案则都视为没有答案,请知晓;PPT和DOC文档可被视为“模板”,允许上传人保留章节、目录结构的情况下删减部份的内容;PDF文档不管是原文档转换或图片扫描而得,本站不作要求视为允许,下载前自行私信或留言给上传者【可****】。
5、本文档所展示的图片、画像、字体、音乐的版权可能需版权方额外授权,请谨慎使用;网站提供的党政主题相关内容(国旗、国徽、党徽--等)目的在于配合国家政策宣传,仅限个人学习分享使用,禁止用于任何广告和商用目的。
6、文档遇到问题,请及时私信或留言给本站上传会员【可****】,需本站解决可联系【 微信客服】、【 QQ客服】,若有其他问题请点击或扫码反馈【 服务填表】;文档侵犯商业秘密、侵犯著作权、侵犯人身权等,请点击“【 版权申诉】”(推荐),意见反馈和侵权处理邮箱:1219186828@qq.com;也可以拔打客服电话:4008-655-100;投诉/维权电话:4009-655-100。