单梁静载试验方案.pdf
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1、兴赣高速预制梁(板)静载试验方案江西省交通工程质量检测中心二零一五年七月兴赣高速梁(板)静载试验初步方案一、试验目的和内容静载试验是对桥梁结构工作状态进行直接测试的一种鉴定手段。梁结构在试验荷载作用下,通过测试结构的静应变、静挠度,藉以判断桥梁结构的工作状态和受力性能。本次试验的目的主要是对预制梁板在使用荷载下的受力性能进行测试,了解单梁的实际受力性能,从而积累科学技术资料,为设计提供试验资料。二、试验技术标准和依据1、大跨径混凝土桥梁的试验方法(经 1982年 10 月在柏林举行的专题第五次专家会议通过),交通部公路科学研究所、交通部公路局技术处、交通部公路规划设计院,1982年 10 月,
2、北京(以下简称试验方法);2、公路工程质量检验评定标准JTG F80/1-2004;3、公路桥涵设计通用规范 JTG D60-2004;4、公路钢筋混凝土及预应力混凝土桥涵设计规范 JTG D62-2004;5、公路桥涵设计规范汇编2001 年版人民交通出版社(以下简称规范);6、公路桥梁承载能力检测评定规程 JTG/T21-2011;7、桥梁工程检测手册人民交通出版社。8、设计施工图纸。三、测试项目和测点布置1、测试跨中应变:测试跨中应变能较好地反映设计和施工质量情况,预应力梁以砼应变为主,在梁跨中梁底截面布置2 个应变测点,跨中腹板沿梁高布置 3 个应变测点(小箱梁两侧均需布置),共布置
3、5 个应变测点(小箱梁 8 个测点)。文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7
4、G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG
5、3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8
6、T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3
7、R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:
8、CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 H
9、C8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M12、测试跨中挠度:满足正常使用对结构的刚度要求,体现在跨中挠度应小于设计计算值或规范规定的允许值,梁跨中布置二个挠度测点。3、测试支座变形(沉陷):测定支座沉陷量是消除其对跨中挠度的影响,两端支座处分别布置二个测点检测支座变形
10、(沉陷)。4、测定残余值:试验荷载卸载后,测定梁挠度值、应变值与卸载后相对应的残余值比值,利于梁结构试验结果评定。5、裂缝观测:试验前和试验过程中,对梁结构是否已出现裂缝进行观测,以了解梁施工质量和利于试验数据分析。预制梁测点布置见图一。L/2支座支座I主梁立面测点布置图小箱梁横截面测点布置图支点截面-截面应变测点百分表测点支点截面-截面应变测点百分表测点T梁横截面测点布置图图一测点布置示意图四、理论计算预制梁(板)静载试验荷载:考虑桥面铺装层的共同受力,计算出在设计活荷载和二期恒载共同作用下梁底跨中截面的应力和挠度,以梁底应力和挠度控制(即加载效率为100%),反算出裸梁跨中加载量为静载试验
11、荷载。文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1
12、D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G
13、7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G
14、9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3
15、O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T
16、2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R
17、7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1根据设计图纸及有关规范,计算出各种预制梁(板)在设计荷载作用下跨中应力和挠度以及试验加载量。五、静载试验测试方法试验加载分六级(50%、60%、70%、80%、90%、100%)、卸载分二级(50%、0%)进行,试验前先进行了80%加载量的预压;每级加载,观
18、测应变值读数稳定后,记录应变、挠度值,同步对试验梁进行裂缝观测。根据试验现场条件,加载方式可采用以下方式之一:在试验梁跨中顶面放置钢轨,再在钢轨上放置千斤顶及荷载传感器,反顶加载横主梁(由工字钢、钢轨或贝雷架等组成),并用钢丝绳栓住配载梁端吊钩(无吊钩可兜梁底),两片梁重量不够时可补堆其它重物,形成扁担式加载装置。本方法可在预制场进行,亦可在已架好一孔以上的桥梁上进行,加载装置见图二。需准备的辅助材料:6m长刚性钢梁 1 根(亦可由三根 45 或 50 型钢轨组成),m长的枕木根或预制50cm 50cm 50cm立方体支座垫块4 个,橡胶支座块。钢丝绳千斤顶试验梁文档编码:CG3O1D3B6G
19、7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E1
20、0 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1
21、文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B
22、6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3
23、E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3M1文档编码:CG3O1D3B6G7 HC8T2G7W3E10 ZL3R7G9R3
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