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上海榮計達儀器科技有限公司
上海榮計達儀器科技有限公司
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一、產品簡介：適用于推定240mm厚普通磚砌體的抗壓強度，是現場檢測磚砌體抗壓強度綜合評定的A設備
一、產品簡介：適用于推定240mm厚普通磚砌體的抗壓強度，是現場檢測磚砌體抗壓強度綜合評定的A設備。使用前務必仔細閱讀說明書。并由 實驗人員操作，以避免操作不當引起的傷害。如需了解更多資料請與我公司客服人員聯系。原位壓力機具有噸位大、行程高、不漏油、使用方便并有數字顯示表、示值 保留峰值特點，由上海榮計達儀器科技有限公司提供，設備質保期一年，一年內產品如有質量問題，供方負責免費維修。如果因操作不當或者人為損壞，我公司亦應提供維修、更換服務，由此產生的費用我公司會酌情收取。
The in-situ press is a testing instrument that is suitable for estimating the compressive strength of 240mm thick ordinary brickwork. It is an A device for comprehensive assessment of the compressive strength of brickwork on the spot. Be sure to read the instructions carefully before use. It is operated by experimental personnel to avoid injury caused by improper operation. For more information, please contact our customer service staff. The in-situ press has the characteristics of large tonnage, high stroke, no oil leakage, convenient use, digital display meter, indication value and peak retention. It is provided by Shanghai Rongjida Instrument Technology Co Ltd. If there is any quality problem during the year, the supplier is responsible for free maintenance. If due to improper operation or man-made damage, our company should also provide repair and replacement services, and the costs incurred by our company will be charged as appropriate.
二、技術指標:
★本設備由扁式千斤頂、四根強力拉桿、上壓板、下壓板、球頭墊、手泵壓力桿、★數顯表或防震壓力表、回位壓蘭等部件
★額定壓力：800KN
★極限壓力：1000KN
★A大行程：20mm
★極限行程：25mm
★示值相對誤差 %
★上壓板平面尺寸：370mmX240mm
★設備總重量：104kg、其中扁式千斤頂57kg
★下壓板尺寸：240mmX240mm
★貯油量：1.5升
★扁式千斤頂主缸直徑：168mm
Main technical indicators of SL-80 in-situ press:
★ This equipment consists of flat jack, four strong pull rods, upper pressure plate, lower pressure plate, ball head pad, hａnd pump pressure rod,
★ Rated pressure: 800KN
★ Ultimate pressure: 1000KN
★ A large stroke: 20mm
★ Extreme travel: 25mm
★ Relative error of displayed value:?%
★ Plane size of upper platen: 370mmX240mm
★ Total weight of the equipment: 104kg, including 57kg flat jack
★ The size of the lower plate: 240mmX240mm
★ Oil storage capacity: 1.5 liters
★ Flat jack master cylinder diameter: 168mm
三、測定方法：
1、先在墻體上開鑿兩條水平槽孔 ①上水平槽尺寸應為 240mm×250mm×70mm(深×寬×高) ②下水平槽尺寸為 240mm×250mm×140m(深×寬×高)，(下槽的高度視壓力機型號不同而調整) ③上下水平槽孔對齊，兩槽間相隔 7 皮磚，凈距約 430mm④槽間砌體的承壓面修平整
2、安放原位壓力機 ①在上槽下表面和扁式千斤頂的頂面，均勻鋪設厚 10mm 濕細砂墊層或石膏等其他材料，便于均勻 受力 ②將反力板置于上槽孔及扁式千斤頂置于下槽孔，并使兩個承壓板上下對齊后，擰緊螺母并調整其 平行度
3、試加荷載 檢查測試系統是否靈敏以及上下壓板和砌體受壓面接觸是否均勻密實，待正常后卸荷即開始測試。 4、正式測試 分級加荷，每級荷載約為預估破壞荷載的 10%，加至預估破壞荷載的 80%，連續加荷直至槽間砌體 破壞(當槽間砌體裂縫急劇擴展而壓力表指針明顯回退時，即為槽間砌體的破壞荷載)。
5、將破壞荷載換算成槽間砌體的抗壓強度和標準砌體抗壓強度，再與設計值對比，從而判明現有砌 體的真實強度。
6、數據分析。
SL-80 in-situ press determination method:
1. First cut two horizontal slot holes in the wall. ①The upper horizontal slot size should be 240mm × 250mm × 70mm (depth × width × height). ②The lower horizontal slot size should be 240mm × 250mm × 140m (depth × width × high). , (The height of the lower groove is adjusted according to the type of the press) ③ The upper and lower horizontal grooves are aligned, and the two grooves are separated by 7 leather bricks with a clear distance of about 430mm.
2. Place the in-situ press ① On the lower surface of the upper groove and the top surface of the flat jack, evenly lay a 10mm thick wet sａnd cushion or gypsum and other materials to facilitate uniform stress ② Place the reaction force plate in the upper groove hole And flat jack are placed in the lower slot, and the two pressure plates are aligned up and down, tighten the nut and adjust its parallelism
3. Trial load test Check whether the test system is sensitive and whether the upper and lower pressure plates and the contact surface of the masonry are uniform and dense. After the load is normal, the test is started. 4. Formal test of formal loading, each load is about 10% of the estimated damage load, added to 80% of the estimated damage load, and continuously loaded until the masonry between the grooves is damaged When the pointer of the pressure gauge retreats obviously, it is the damage load of the masonry between the grooves).
5. Convert the damage load into the compressive strength of the masonry between the grooves and the compressive strength of the standard masonry, and then compare it with the design value to determine the true strength of the existing masonry.
6. Data analysis.
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