CN2697635Y - Device for testing concrete fracture energy and fracture toughness by wedging-drawing method - Google Patents

Device for testing concrete fracture energy and fracture toughness by wedging-drawing method Download PDF

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Publication number
CN2697635Y
CN2697635Y CN 200420017673 CN200420017673U CN2697635Y CN 2697635 Y CN2697635 Y CN 2697635Y CN 200420017673 CN200420017673 CN 200420017673 CN 200420017673 U CN200420017673 U CN 200420017673U CN 2697635 Y CN2697635 Y CN 2697635Y
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China
Prior art keywords
wedging
split
sensor
test
model
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Expired - Lifetime
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CN 200420017673
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Chinese (zh)
Inventor
张科
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China Gezhouba Group Co Ltd
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CHINA GEZHOUBA CONSTRUCTION GR
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Priority to CN 200420017673 priority Critical patent/CN2697635Y/en
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Abstract

The utility model relates to a device for testing concrete fracture energy and fracture toughness by a wedging and drawing method, which mainly comprises a force transferring wedge head, a wedging and drawing model force transferring board and a wedging and drawing spacing strip supporting seat. The wedging and drawing spacing strip supporting seat is firstly positioned on a lower pressing plate of a pressing machine, a tested piece is positioned on the wedging and drawing spacing strip supporting seat, and the wedging and drawing model force transferring board is positioned above the tested piece. A force transferring wedging head and a wedging and drawing I-shaped steel loading seat are connected, a sensor snap ring is arranged on the wedging and drawing I-shaped steel loading seat, and a sensor is arranged on the sensor snap ring; the upper end of the sensor is connected with a suspension bracket of a loading facility which is connected with the upper pressing plate of the pressing machine. In the device, the automatic wedging head and the upper pressing plate of the pressing machine are connected, and the loading is more sensitive. The utility model eliminates the influence of the deadweight of the wedging head to the test, and does not drop off when the tested piece is destroyed. The utility model enhances the operational safety of testing person, improves automatic degree, reduces experiment error, shortens the turnaround cycle of the test, and improves the accuracy and work efficiency of the test.

Description

The device that daraf(reciprocal of farad) is measured fracture energy of concrete and fracture toughness test is split in wedging
Technical field
The utility model relates to a kind of testing tool, particularly a kind of test unit of splitting daraf(reciprocal of farad) mensuration fracture energy of concrete and fracture toughness with wedging.
Background technology
It is one of form of measuring fracture energy of concrete and fracture toughness that daraf(reciprocal of farad) is split in wedging, and in the sensing equipment in the past, the wedge head mostly is split and is welded.Like this, during welding, not only hot-working will produce certain influence to the performance of material, and the sensitivity during the test loading is also relatively poor, and its deadweight quality is also influential to test findings, and can drop when test specimen destroys, and security performance is not high.
Summary of the invention
The purpose of this utility model provides a kind of safe, and loading is highly sensitive, and wedge head deadweight quality is split daraf(reciprocal of farad) to test nothing influence wedging and measured fracture energy of concrete and fracture toughness test device.
The purpose of this utility model is achieved in that a kind of wedging splits the device that daraf(reciprocal of farad) is measured fracture energy of concrete and fracture toughness test, comprise that force transmission wedge head 4, wedging split draw model force transmitting board 5 and wedging and split and draw filler strip bearing 8, wedging is split on the lower platen that draws filler strip bearing 8 to place pressing machine earlier, wedging is split to draw and is put test specimen 11 on the filler strip bearing 8, and test specimen 11 tops are put wedging and split draw model force transmitting board 5; Force transmission wedge head 4 is connected with wedging and splitting tensile steel loading seat 7, wedging is split pull sensor snap ring 1 and is installed on the wedging and splitting tensile steel loading seat 7, wedging is split sensor 10 is housed on the pull sensor snap ring 1, sensor 10 upper ends are connected with loading facilities hanger 9, and loading facilities hanger 9 is connected with the top board of pressing machine.Force transmission wedge head 4 is split with wedging and is drawn power transmission bearing 3 to be connected, and wedging is split and drawn power transmission bearing 3 to be installed in wedging to split in the draw model force transmitting board bearing spider 6, and wedging is split draw model force transmitting board bearing spider 6 and split draw model force transmitting board 5 with wedging and be connected.Force transmission wedge head 4 is the symmetrical force transmitting boards of 15 degree.
Wedging provided by the utility model is split daraf(reciprocal of farad) and is measured fracture energy of concrete and fracture toughness test device, automatic wedge head is connected with the pressing machine top board, loading has more sensitivity, both eliminated of the influence of wedge head deadweight quality to test, when test specimen destroys, can not drop again, strengthen the safety of testing crew operation, improve automaticity, reduce test error and shortened the test turnaround time, improved the accuracy and the work efficiency of test.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is a side view of the present utility model.
Embodiment
The utility model adopts following structure: the device that daraf(reciprocal of farad) is measured fracture energy of concrete and fracture toughness test is split in a kind of wedging, comprise that force transmission wedge head 4, wedging split draw model force transmitting board 5 and wedging and split and draw filler strip bearing 8, it is characterized in that: wedging is split on the lower platen that draws filler strip bearing 8 to place pressing machine earlier, wedging is split to draw and is put test specimen 11 on the filler strip bearing 8, and test specimen 11 tops are put wedging and split draw model force transmitting board 5; Force transmission wedge head 4 is connected with wedging and splitting tensile steel loading seat 7, wedging is split pull sensor card bad 1 and is installed on the wedging and splitting tensile steel loading seat 7, wedging is split sensor 10 is housed on the pull sensor snap ring 1, sensor 10 upper ends are connected with loading facilities hanger 9, and loading facilities hanger 9 is connected with the top board of pressing machine.Force transmission wedge head 4 is split with wedging and is drawn power transmission bearing 3 to be connected, and wedging is split and drawn power transmission bearing 3 to be installed in wedging to split in the draw model force transmitting board bearing spider 6, and wedging is split draw model force transmitting board bearing spider 6 and split draw model force transmitting board 5 with wedging and be connected.Force transmission wedge head 4 is the symmetrical force transmitting boards of 15 degree.Force transmission wedge head 4 by the cold working assembly unit, tightly forms with screw.
During the work of this device, test specimen 11 is placed in wedging to be split and draws on the filler strip bearing 8, wedging is split draw model force transmitting board 5 and is placed on the test specimen 11, and starting motor adds load for test specimen gradually, and force transmission wedge head 4 is split with wedging and drawn power transmission bearing 3 synchronously pressure to be reached test specimen, test specimen then produces distortion, the data of distortion are imported computing machine into by 100kN sensor 10, by the direct conclusion to obtaining testing after the processing data information of computing machine, have overcome the error of artificial reading, visual results, accurately and reliably.

Claims (3)

1, the device that daraf(reciprocal of farad) is measured fracture energy of concrete and fracture toughness test is split in a kind of wedging, comprise that force transmission wedge head (4), wedging split draw model force transmitting board (5) and wedging and split and draw filler strip bearing (8), it is characterized in that: wedging is split and is drawn filler strip bearing (8) to place earlier on the lower platen of pressing machine, wedging is split to draw and is put test specimen (11) on the filler strip bearing (8), and test specimen (11) top is put wedging and split draw model force transmitting board (5); Force transmission wedge head (4) is connected with wedging and splitting tensile steel loading seat (7), wedging is split pull sensor snap ring (1) and is installed on the wedging and splitting tensile steel loading seat (7), wedging is split sensor (10) is housed on the pull sensor snap ring (1), sensor (10) upper end is connected with loading facilities hanger (9), and loading facilities hanger (9) is connected with the top board of pressing machine.
2, the device that daraf(reciprocal of farad) is measured fracture energy of concrete and fracture toughness test is split in wedging according to claim 1, it is characterized in that: force transmission wedge head (4) is split with wedging and is drawn power transmission bearing (3) to be connected, wedging is split and is drawn power transmission bearing (3) to be installed in wedging to split in the draw model force transmitting board bearing spider (6), and wedging is split draw model force transmitting board bearing spider (6) and split draw model force transmitting board (5) with wedging and be connected.
3, split the device that daraf(reciprocal of farad) is measured fracture energy of concrete and fracture toughness test according to right 1 or 2 described wedgings, it is characterized in that: force transmission wedge head (4) is the symmetrical force transmitting boards of 15 degree.
CN 200420017673 2004-04-07 2004-04-07 Device for testing concrete fracture energy and fracture toughness by wedging-drawing method Expired - Lifetime CN2697635Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200420017673 CN2697635Y (en) 2004-04-07 2004-04-07 Device for testing concrete fracture energy and fracture toughness by wedging-drawing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200420017673 CN2697635Y (en) 2004-04-07 2004-04-07 Device for testing concrete fracture energy and fracture toughness by wedging-drawing method

Publications (1)

Publication Number Publication Date
CN2697635Y true CN2697635Y (en) 2005-05-04

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CN 200420017673 Expired - Lifetime CN2697635Y (en) 2004-04-07 2004-04-07 Device for testing concrete fracture energy and fracture toughness by wedging-drawing method

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100370240C (en) * 2005-05-16 2008-02-20 河海大学 Method for testing soil mass fragmentation parameters and tester thereof
CN100523808C (en) * 2006-10-26 2009-08-05 上海交通大学 Splitting and pulling leakage test holding device for concrete cylindrical test part
CN103900901A (en) * 2014-03-10 2014-07-02 水利部交通运输部国家能源局南京水利科学研究院 Concrete testing device using wedged splitting tensile method
CN108918253A (en) * 2018-08-01 2018-11-30 无锡洲翔成套焊接设备有限公司 The method for measuring drop hammer test material actual fracture energy
CN109682685A (en) * 2019-01-07 2019-04-26 上海建工集团股份有限公司 Measure the device and method of quasi-brittle material tensile strength
CN113405913A (en) * 2021-06-09 2021-09-17 重庆交通大学 Device for soil fracture toughness and tensile strength and using method thereof

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100370240C (en) * 2005-05-16 2008-02-20 河海大学 Method for testing soil mass fragmentation parameters and tester thereof
CN100523808C (en) * 2006-10-26 2009-08-05 上海交通大学 Splitting and pulling leakage test holding device for concrete cylindrical test part
CN103900901A (en) * 2014-03-10 2014-07-02 水利部交通运输部国家能源局南京水利科学研究院 Concrete testing device using wedged splitting tensile method
CN108918253A (en) * 2018-08-01 2018-11-30 无锡洲翔成套焊接设备有限公司 The method for measuring drop hammer test material actual fracture energy
CN108918253B (en) * 2018-08-01 2021-02-02 无锡洲翔成套焊接设备有限公司 Method for measuring true fracture energy of drop weight tear test material
CN109682685A (en) * 2019-01-07 2019-04-26 上海建工集团股份有限公司 Measure the device and method of quasi-brittle material tensile strength
CN113405913A (en) * 2021-06-09 2021-09-17 重庆交通大学 Device for soil fracture toughness and tensile strength and using method thereof
CN113405913B (en) * 2021-06-09 2024-01-26 重庆交通大学 Device for soil body fracture toughness and tensile strength and application method thereof

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
ASS Succession or assignment of patent right

Owner name: CHINA GEZHOUBA GROUP CO.

Free format text: FORMER OWNER: CHINA GEZHOUBA WATER CONSERVANCY AND HYDROELECTRIC ENGINEERING GROUP CO., LTD.

Effective date: 20080314

C41 Transfer of patent application or patent right or utility model
TR01 Transfer of patent right

Effective date of registration: 20080314

Address after: Hubei province Yichang City Qing Road No. 1, zip code: 443002

Patentee after: China Gezhouba Group Co., Ltd.

Address before: Hubei province Yichang City Qing Road No. 25, zip code: 443000

Patentee before: China Gezhouba Water & Power Engineering Group Co., Ltd.

C17 Cessation of patent right
CX01 Expiry of patent term

Expiration termination date: 20140407

Granted publication date: 20050504