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1、Xxx桥荷载试验报告 xxx桥荷载试验检 测 报 告报告编号：练习-JB-2012-QL-02-001报告总页数：40页（含此页）报告日期：2012年04月10日工程名称：xxx桥荷载试验检测报告工程地点：xxx市检测日期：2012年04月05日xxxxx检测有限公司xxx桥荷载试验检测报告项目负责人：检 测 人员：报告编写人：审 核 人：批 准 人： 声明: 1.本检测报告涂改、换页无效。 2.如对本检测报告有异议，可在报告发出后20 天内向本检测单位书面提请复议。 3.检测单位名称与检测报告专用章名称不符者无效。Opinions and suggestions on the partys
2、mass line educational practiceAccording to the central and provincial, municipal unified deployment, according to municipal Party committee about carrying out the partys mass line educational practice activity in the citys implementation opinions, the spirit of the partys mass line educational pract
3、ice activities from 20* in January to 99 months, carried out at all levels of departments and directly affiliated institutions and grass-roots party organizations. According to my actual County, the county to carry out the education practice put forward the following implementation opinions.First, t
4、he overall requirementsCounty county education practice to the eighteen Party of eight, the spirit of the the third Plenary Session of the 18th CPC Central Committee as the guidance, conscientiously implement the spirit of general secretary Xi Jinping book series of important speech, earnestly imple
5、ment the Central Committee really, opinions and advice , party implementing the guiding ideology of opinions to determine the objectives and requirements, step method, in accordance with the look in the mirror, dress up, wash bath, cure treatment, the general requirements of for the people pragmatic
6、 honest people as the theme, in carrying forward the spirit of Zhuanglang Zhuang, improve their work style, service to the masses of the people, the foundation of consolidating grassroots, promote transformation across efforts, to further implement the central eight regulations and The opposition pa
7、rty and government austerity waste regulations , double section provincial regulations, municipal provisions of the twelve plan and the implementation measures for on improving the work style of close ties with the masses law, highlight style building, carry out the whole wind spirit, resolutely opp
8、ose formalism, bureaucracy, hedonism and wasteful extravagance to solve the problems, Party members and cadres of the style and the masses of people strong, the Ministry of Party members and cadres to further improve their thinking and understanding, to further change the style of the wind, the mass
9、es to close, honest and pragmatic people honest image to further establish the foundation to further reinforce the basic level. Style of the building 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 e
10、ducational practice activities of the unit is mainly: the county and below county departments under the organs, enterprises and institutions directly under the township, street, and community, village, non-public economic organizations, social organizations and other grass-roots organizations. Agenc
11、ies and branches, each single unit, follow the rules on internal institutions. Educational practice with step by step.To adhere to the county leadership, leadership and leading cadres to focus on outstanding catch to directly contact the service of the masses of law supervision departments and windo
12、w units, service industry, educational practice, pay attention to grasp the heavy towns, streets and villages, community education activities and 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
13、 masses and the partys education.Always speak seriously as a basic attitude, adhere to positive education, to carry out criticism and self criticism 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
14、 the problem, pay more attention to open the door, the participation of the masses, pay more attention to the classification guidance. Orderly, pay more attention to the cooperation and cohesion driven, more strict requirements on injection, really supervision practice, ensure education practice is
15、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 to seize against four wind this focus on centralized solve outstanding problems asked County, township leadership and leading cadres of the four winds, the
16、disadvantages of the style, scale behavior to a large scale investigation, overhaul, cleaning greatly. At the same time, respond to the concerns of the masses, safeguard the interests of the masses, pay attention to solve practical problems, solve the people around the unwholesome tendencies especia
17、lly on eat, take the card, Yong lazy luxury, extravagance and waste fees, privileges and other issues, timely and effective, without any discount 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 solvin
18、g the four winds outstanding issuesThe central and provincial requirements, the county leadership and leading cadres of key performance concept is 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 polic
19、y, there are countermeasures county. The units directly under the heavy focus on solving Yung lazy drag, buck passing skin, work is not implemented, the service is not active. The dynamic problem of law enforcement and supervision departments and window units, service industry mainly solve the door
20、hard, ugly face, something difficult, and arbitrary charges, fines, levies, and breach of privilege, chinakayao, not the problem of law. The township, 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 in
21、vestment risk, gain profit.(three) vigorously promote the brand. To establish brand awareness, awareness of the use of brand, brand value, brand acquisition performance, enhance the competitive strength. Concentrated manpower, careful planning, packaging and publicity of a number of unique, market i
22、nfluence and coverage of the brand, the implementation of key breakthroughs, to enhance the competitive strength, walking business road the competition of alienation and characteristics, the pursuit of stability and development of the market.(four) to promote the integration of resources. To further
23、 broaden their horizons, effective integration of resources within the group, the city resources, other industries and regional resources, mutual trust, mutual benefit, seeking win-win principle, in the framework of national policies and regulations, strict inspection and argumentation, legal consul
24、tation, examination and approval procedures, strict regulation of economic activities, attract injection the social investment to the industry group, to achieve leveraging the development, ensure that the value of state-owned assets.(five) to strengthen the construction management personnel. Strengt
25、hen the management of education and training of cadres and workers of the existing business, firmly establish the concept of the market, enhance the sense of crisis to adapt to market competition, the sense of urgency, improve the ability to respond to market competition, improve management and oper
26、ation of the market. At the same time, according to the need of industrial development, vigorously the introduction of high-quality management management personnel, and strive to build a high-quality professional management team, hard work, and promote the entire workforce knowledge structure, age s
27、tructure, structure optimization and upgrading ability, enhance core competitiveness, adapt to the need of market competition.(six) seriously study the policy for policy. Serious research about social support the development of cultural undertakings in the country and the XX policy, especially the p
28、olicy of industrial development, financial investment policy, financial policy and tax policy, and actively seek policy, projects and funds, enterprise and industry group mission to promote leapfrog development.xxx桥荷载试验报告 目 录1.桥梁概况52.荷载试验的目的73.荷载试验的依据84.检测组织84.1.人员组织84.2.仪器设备94.3.现状环境105.外观检测105.1.外
29、观检测过程105.2.外观检测结果115.2.1.桥面系115.2.2.上部承重结构135.2.3.下部结构135.2.4.混凝土抗压强度检测146.静力荷载试验方案156.1.试验荷载的确定156.2.荷载试验项目166.3.加载方式与加载分级166.4.加载位置与加载工况的确定166.5.测试项目及量测方法186.6.测试断面与测点布置186.7.试验加载程序196.8.静力荷载试验规则197.动力荷载试验方案207.1.测试项目207.2.测试断面的确定218.静载试验过程描述229.静载试验数据分析249.1.挠度数据分析249.1.1.跨中（A-A）截面最大正弯矩上游偏心加载试验24
30、9.1.2.跨中（A-A）截面最大正弯矩下游偏心加载试验259.2.应变数据分析269.2.1.跨中（A-A）截面最大正弯矩上游偏心加载试验269.2.2.跨中（A-A）截面最大正弯矩下游偏心加载试验279.3.裂缝观测2910.静载试验结果评定2910.1.计算分析模型2910.2.静力荷载试验效率2910.3.结构工作状况评定3010.3.1.结构截面刚度评定3010.3.2.结构总体刚度评定3010.3.3.结构裂缝评定3111.动载试验结果评定3111.1.计算分析模型3111.2.动载试验测试过程3111.3.环境振动测试分析及评定3211.3.1.实测数据3211.3.2.理论计算
31、3411.3.3.分析及评定3511.4.无障碍行车试验分析及评定3611.4.1.20米预应力空心板冲击系数3611.4.2.分析及评定3912.结论3913.建议40xxx桥荷载试验报告 xxx桥荷载试验报告1. 桥梁概况xxx市xxx桥桥位于xxx市鹤上镇镇区公路上，上部结构采用20m预应力钢筋砼简支空心板，上部横断面由6片板组成。下部结构采用基桩接盖梁式桥台，桥梁全长25.04m。场地表层为淤泥质土，下覆中砂层、粘土层、全风化花岗岩、强风化花岗岩，桥梁基础选择强风化花岗岩作为持力层。本桥净宽7.0m+20.5m安全带，全桥总宽8.0m。墩台与路线方向斜交15，梁桥台处设有D-40型伸缩
32、缝。设计荷载为公路-II级，五十年一遇设计洪水位3.1m，地震基本烈度为VII度。桥面铺装采用C40防水混凝土。桥面铺装总厚度为1015.25cm。桥梁纵断面详见图1-1所示。图1-1 xxx桥纵断面布置图(单位：cm)上部结构上部结构，20米跨预制空心板：板高0.95m，中板宽1.240m，边板宽1.240m，挑臂0.250m，横桥向由6片空心板组成；横断面形式示意于图1-2中。下部结构下部结构采用基桩接盖梁式桥台。xxx桥正面及侧面照片如图1-3、图1-4所示。图1-2 xxx桥横断面形式（单位：mm） 图 1-3 正面照片 图 1-4 侧面照片技术标准：（1）桥梁设计荷载：公路级。（2）
33、净跨径布置：1跨20米简支预应力空心板。（3）桥面宽度：0.5m（安全带）+7.0m（行车道）+0.5m（安全带），总宽8.0m。（4）桥梁纵坡：1.122%；桥梁横坡：机动车道1.5%。（5）地震作用：抗震设计烈度为7度。（6）桥下净空：1.0m1.5m。材料：（1）混凝土20米预应力空心板采用C40砼；桥面铺装采用C40防水砼；盖梁采用C30混凝土；桩基础采用C25混凝土。（2）钢材预应力钢束：采用高强度低松驰7丝捻制的预应力钢绞线，公称直径为15.20mm，公称面积140mm2，标准强度fpk=1860MPa，弹性模量E=1.95105MPa，1000h后应力松驰率不大于2.5%，其技术
34、性能必须符合中华人民共和国国家标准(GB/T 52242003)预应力筋用钢绞线的规定。普通钢筋：钢筋直径10mm者采用R235光圆钢筋，直径10mm者采用HRB335带肋钢筋，其技术性能应分别符合中华人民共和国国家标准钢筋混凝土热轧光圆钢筋（GB 13013-1991）、钢筋混凝土热轧带肋钢筋GB 1499-1998的规定。（3）其它材料预应力锚具：必须采用成品锚具及其配套设备，并应符合中华人民共和国国家标准(GB/T 14370-2000)预应力筋用锚具、夹具和连接器、中华人民共和国交通行业标准(JT 329.2-97)公路桥梁预应力钢绞线用锚具、连接器试验方法及检验规格等技术要求。预应力
35、体系：应符合国际预应力砼协会(FIP)后张预应力体系的验收建议的要求。金属波纹管应满足预应力混凝土用金属螺旋管JG/T3013-94的要求。桥梁支座：采用GJZ板式橡胶支座，其技术性能应符合中华人民共和国交通行业标准JT/T4-2004公路桥梁板式橡胶支座的规定。桥梁伸缩缝：D-40型，其技术性能应符合中华人民共和国交通行业标准JT/T 3272004公路桥梁伸缩装置的规定。2. 荷载试验的目的通过对xxx市xxx桥进行荷载试验，以达到以下目的：（1）通过测定桥跨结构在荷载所用下的控制断面应变和挠度，并与理论计算值比较，检验结构控制断面应变与挠度值是否满足设计与规范要求。（2）通过对该桥进行静
36、力荷载试验，为本桥今后运营养护及长期健康状况评价提供结构原始参数。（3）通过测定桥跨结构的自振特性，以评定结构的实际动力性能，并检验桥跨结构的行车冲击系数等指标是否符合规范要求。（4）通过对试验观测数据和试验现象的综合分析，对实际结构做出总体评价，为交工验收提供技术依据。3. 荷载试验的依据本次荷载试验及评定主要依据以下技术文件：（1）公路桥涵养护规范(JTG H11-2004)；（2）公路桥涵设计通用规范(JTG D60-2004)；（3）公路钢筋混凝土及预应力混凝土桥涵设计规范(JTG D62-2004)；（4）公路桥梁承载能力检测评定规程(JTG/T J21-2011)；（5）回弹法检测
37、混凝土强度技术规程(JGJ/T23-2011)；（6）福建省xxx市鹤上镇xxx桥设计文件，福建省林业勘察设计院，2010年11月。4. 检测组织4.1. 人员组织为保证现场试验工作顺利、优质的完成，xxxxx检测有限公司专门组织有经验的工程师和技术人员成立检测小组，具体人员组成见表 4-1。表 4-1 试验人员组成序号姓名职称、职务本项目担任工作123456784.2. 仪器设备本次检测所用仪器设备及性能指标见表 4-2所列。表 4-2 荷载试验仪器设备及性能指标序号仪器或设备名称型号规格编号数量精度1裂缝测宽仪PTS-E40G041台0.02mm2混凝土回弹仪ZC3-AX071台13砼碳化
38、深度测定仪（0-8）mmX091台0.25mm4静态应变测试系统DH-3821G01-41台110-65百分表030mmG3010个0.01mm6动态数据采集系统DH5908GG01-21台/7应变片BX120-100/40片110-64.3. 现状环境试验期间环境状况为：检测起止时间：2012年2月17日至2012年2月18日湿度：40%47%；天气：阴；温度：最高14，最低10；风力：12级。现场试验环境条件均满足桥梁荷载试验的基本要求。5. 外观检测本次外观质量检测实施以下5方面的检测内容：（1）结构各部件表面缺损状况的检查；（2）桥梁开裂状况的详细调查；（3）桥梁关键部位混凝土强度检测
39、；（4）混凝土碳化深度检测；5.1. 外观检测过程2012年4月05日对xxx市xxx桥进行了详细的质量检测，包括对桥面铺装、排水系统、栏杆、伸缩装置、主梁、桥墩、桥台及基础等外观破损情况进行了检测，以及对主要承重构件进行了裂缝、混凝土强度及碳化深度的检测，图5-1给出了部分现场检测的照片。 图5-1（a）混凝土强度测量 图5-1（b）碳化深度测量5.2. 外观检测结果本报告中各构件编号规则如下：空心号从上游至下游依次进行编号。具体见图5-2。图5-2 空心板编号示意图（单位：mm）5.2.1. 桥面系5.2.1.1 桥面铺装经现场勘查，桥面铺装层未产生网裂、交错裂缝、碎块及纵向裂缝，未出现波
40、浪车辙现象，未出现坑槽。但桥面上下游两侧卫生状况较差，垃圾堆积。见图5-3。 桥面铺装层未发现病害 桥面上下游两侧垃圾堆积图5-3 桥面铺装技术状况5.2.1.2伸缩缝经现场勘查，桥梁在两桥台处设置D-40型伸缩缝，伸缩缝被砂土等杂物堵塞。见图5-4。 0#台、1#台处伸缩缝被砂土等杂物堵塞图5-4 伸缩缝病害现场状况5.2.1.3桥头与路堤连接部经现场勘查，桥头与路堤连接部平顺，行车基本顺畅。桥头与路堤连接部未发现纵横向裂缝。现场病害状况见图5-5。 图5-5桥头与路堤连接部技术状况5.2.1.4 排水系统经现场勘查，桥面排水孔堵塞，排水不顺畅，桥面两侧有积水痕迹。见图5-6。 （a）桥面排
41、水孔堵塞、两侧积水，排水管未露出结构表面20cm以上 图5-6 排水系统状况5.2.1.5 护栏 经现场勘查，护栏技术状况良好，未发现残缺丢失不全等病害。见图5-7。 图5-7 护栏现场状况5.2.1.6 人行道京林桥未设置人行道。5.2.2. 上部承重结构5.2.2.1裂缝观测空心板板底未发现裂缝。5.2.2.2上部结构混凝土表观质量空心板板底未出现露筋锈蚀、空心板之间接缝未发现异常、渗水现象。但空心板接缝间残留大量薄膜，见图5-8。 图5-8 板底未出现裂缝、露筋现象，接缝间残留大量薄膜5.2.3. 下部结构5.2.3.1 桥墩和桥台各桥台未发现明显病害。见图5-9。 图5-9 桥台技术状
42、况5.2.3.2 支座现场支座技术状况无法观测。5.2.4. 混凝土抗压强度检测根据规范回弹法检测混凝土抗压强度技术规程（JTJ/T23-2001），采用回弹法检测空心板的现龄期混凝土强度，检测结果详见表5-1。数据表明，20米预应力砼空心板现龄期砼强度推定值最低值为46.3MPa。混凝土强度满足设计要求。表5-1 构件砼强度非破损检测结果汇总表构件名称强度平均值(MPa)强度标准差 (MPa)强度推定值 (MPa)设计强度等级1号板52.04.4248.6C402号板55.03.5952.1C403号板47.61.8446.3C404号板54.16.3449.5C405号板52.24.014
43、9.1C406号板51.03.0848.6C40说明：构件上各测区砼强度换算值的平均值；：构件上各测区砼强度换算值的标准差；：砼强度推定值，指相应于强度换算值总体分布中保证率不低于95%的强度值。根据桥梁外观检查情况，建议做以下处理：（1）定期清理伸缩缝中的沉积物；（2）重修排水孔及排水管；（3）清除空心板接缝间的薄膜（4）依据公路桥涵养护规范(JTG H11-2004)，加强桥梁日常养护。6. 静力荷载试验方案桥梁静力荷载试验，主要是通过测量桥梁结构在静力试验荷载作用下的变形和应变，用以确定桥梁结构的实际工作状态与设计期望值是否相符。它是检验桥梁结构受力特征的最直接和最有效的手段和方法。6.
44、1. 试验荷载的确定就某一加载试验项目而言，其所需加载车辆的数量及其在桥梁上的纵横向排列，根据试验荷载产生的该加载试验项目对应的加载控制截面内力或变位的最不利效应值，按下式所确定的原则等效换算而得： 式中： 静力试验荷载效率； 试验荷载作用下控制截面内力计算值； 控制荷载作用下控制截面最不利内力计算值（不计冲击）； 按规范取用的冲击系数。本次静力荷载试验在计算过程中的理论计算荷载等级按照桥梁设计荷载等级计算，静力荷载试验实际采用2辆单辆重约为400kN的三轴载重货车充当。试验车的主要技术参数见表 6-1所示。表 6-1 加载车主要技术参数序号车牌号ABC前轴重后双轴总重总重闽A321294.2
45、01.351.8510.8930.6141.50闽A199834.201.351.8510.3532.7743.12注：图中尺寸均以m计，车重以t计。6.2. 荷载试验项目根据理论计算的内力包络图，分别对0#台1#台20米跨预应力空心板跨中最大正弯矩进行测试，共分2个加载工况。工况1：对0#台1#台20米跨预应力空心板跨中截面（A-A截面）最大正弯矩上游偏心加载，测试跨中截面各测点应变、挠度。工况2：对0#台1#台20米跨预应力空心板跨中截面（A-A截面）最大正弯矩下游偏心加载，测试跨中截面各测点应变、挠度。6.3. 加载方式与加载分级为了获取结构试验荷载与变位的相关曲线，防止结构加载意外损伤，就某一加载试验项目，其静力试验荷载应分级加载，分级卸零。静力试验荷载的加载分级主要依据加载车在某一加载试验项目对应的控制截面内力和变位影响面内纵横向位置的不同以及加载车数量的多少分级。本次试验加载方式，每个工况分4级递加到最大荷载，然后一次卸零。分级办法：