騰達(dá)試驗(yàn)儀器廠：

　　一、鋼筋殘余變形測(cè)試儀產(chǎn)品簡(jiǎn)介：

　　■國(guó)家標(biāo)準(zhǔn)JGJ107-2010《鋼筋機(jī)械連接技術(shù)規(guī)程》規(guī)定，通過(guò)圓柱套筒機(jī)械連接的兩根鋼筋，在單向拉伸試驗(yàn)中，接頭的變形性能等級(jí)是一級(jí)時(shí)要求：殘余變形u0≤0.10mm（鋼筋直徑d≤Φ32mm）和u0≤0.14mm（鋼筋直徑d＞Φ32mm）。實(shí)際工作中測(cè)量到的殘余變形一般在0.030mm至0.080mm之間。殘余變形量很小。

　　■鋼筋殘余變形測(cè)試儀只有采用雙側(cè)引伸計(jì)測(cè)量得到的數(shù)據(jù)才是A準(zhǔn)確的；

　　■雙側(cè)引伸計(jì)和鋼筋之間只有采用彈性連接（例如：彈簧和皮筋套），這樣測(cè)量得到的數(shù)據(jù)才是A可靠的。多次實(shí)驗(yàn)證明：采用機(jī)械式剛性連接雖然連接方便，但是測(cè)量的數(shù)據(jù)誤差大，大于1%，重復(fù)性差，數(shù)據(jù)A靠，不能通過(guò)計(jì)量檢定。

　　First,the steel residual deformation tester product introduction:

　　■National Standard JGJ107-2010"Technical Regulations for Reinforcing Steel Connections"stipulates that two steel bars mechanically connected by a cylindrical sleeve,in the uniaxial tensile test,the deformation performance level of the joint is one level:residual deformation u0≤0.10 Mm(rebar diameter d≤Φ32mm)ａnd u0≤0.14mm(rebar diameter d>Φ32mm).The residual deformation measured in actual work is generally between 0.030 mm and 0.080 mm.The amount of residual deformation is small.

　　■Rebar residual deformation tester is only accurate when the data measured by the double-sided extensometer is used;

　　■Only the elastic connection between the double-sided extensometer and the steel bar(for example,spring and rubber sleeve)is such that the measured data is A reliable.Many experiments have proved that although the mechanical rigid connection is convenient,the measured data error is large,more than 1%,the repeatability is poor,the data A depends,ａnd the measurement cannot be passed.

　　二、鋼筋殘余變形測(cè)試儀主要指標(biāo)

　　■滿足標(biāo)準(zhǔn)：JGJ107-2010《鋼筋機(jī)械連接技術(shù)規(guī)程》（2010.10.01實(shí)施）

　　■標(biāo)定儀器：GWB-200B高精度引伸計(jì)標(biāo)定器（量程0～25mm，分辨率0.0002mm）鋼鐵研究總院制造

　　■測(cè)量鋼筋直徑（mm）：φ5～φ40

　　■測(cè)量分辨值（mm）：0.001

　　■精度等級(jí)：1級(jí)

　　■數(shù)顯表顯示含義：

　　均值：表示PV1和PV2兩路的平均值

　　PV1：表示A路引伸計(jì)變形測(cè)量值

　　PV2：表示第二路引伸計(jì)變形測(cè)量值

　　Second,the main indicators of the residual deformation tester

　　■Meet the standard:JGJ107-2010"Technical Regulations for Reinforcing Steel Connections"(implementation of 2010.10.01)

　　■Calibration instrument:GWB-200B high precision extensometer calibrator(range 0~25mm,resolution 0.0002mm)Steel Research Institute manufacturing

　　■Measure the diameter of the steel bar(mm):φ5 toφ40

　　■Measurement resolution(mm):0.001

　　■Accuracy level:Level 1

　　■Digital display shows the meaning:

　　Mean:Indicates the average of both PV1 and PV2

　　PV1:indicates the deformation measurement value of the A path extensometer

　　PV2:indicates the second extensometer deformation measurement value

　　三、鋼筋殘余變形測(cè)試儀主要特點(diǎn)

　　■鋼筋機(jī)械連接殘余變形測(cè)試儀由兩只高精度可變標(biāo)距引伸計(jì)，靈敏度保持一致，組成雙側(cè)引伸計(jì)，直接測(cè)量試樣的兩側(cè)平均變形量，測(cè)量結(jié)果準(zhǔn)確；

　　■兩只引伸計(jì)測(cè)量標(biāo)距可調(diào)，范圍50～260mm，量程5mm或10mm；

　　■四位三排兩輸入高精度數(shù)顯表，電路部分采用24位A/D高精度IC芯片設(shè)計(jì)，實(shí)時(shí)顯示兩只引伸計(jì)的真實(shí)變形量，數(shù)值穩(wěn)定可靠；

　　■數(shù)顯表設(shè)置簡(jiǎn)單，帶有密碼鎖設(shè)定功能，避免誤操作改動(dòng)設(shè)定值；

　　■雙側(cè)引伸計(jì)和鋼筋之間采用彈性連接（例如：彈簧和皮筋套），試樣夾持方便，使用壽命長(zhǎng)；

　　■本儀器由專業(yè)人員根據(jù)實(shí)際情況精心設(shè)計(jì)，結(jié)構(gòu)合理，非常適合于建筑質(zhì)檢部門檢測(cè)使用。

　　Third,the main characteristics of the steel residual deformation tester

　　■Reinforcement mechanical connection residual deformation tester consists of two high-precision variable gauge extensometers with the same sensitivity,forming a double-sided extensometer,directly measuring the average deformation of both sides of the sample,ａnd the measurement results are accurate;

　　■Two extensometers can measure the gauge length,ranging from 50 to 260mm,with a range of 5mm or 10mm;

　　■Four-position three-row two-input high-precision digital display,the circuit part is designed with 24-bit A/D high-precision IC chip,real-time display of the true deformation of two extensometers,the value is stable and reliable;

　　■The digital display is easy to set up with the password lock setting function to avoid misuse and change the set value;

　　■The elastic connection between the double-sided extensometer and the steel bar(for example:spring and rubber sleeve),the sample is convenient to clamp and the service life is long;

　　■This instrument is designed by professionals according to the actual situation,ａnd the structure is reasonable,which is very suitable for the inspection and use of the building quality inspection department.

　　四、鋼筋殘余變形測(cè)試儀主要配置

　　■可變標(biāo)距引伸計(jì)兩只；

　　■高精度數(shù)顯表一臺(tái)；

　　■常用工具附件一套；

　　■使用說(shuō)明書(shū)一份；

　　■儀器包裝箱一個(gè)（340×230×110mm）。

　　Fourth,the main configuration of the residual deformation tester

　　■Variable gauge length extensometer two;

　　■High-precision digital display

　　■A set of commonly used tools

　　■Instructions for use;one copy;

　　■Instrument packaging box One(340×230×110mm).