CN210090185U - A test device for indoor cable safety anchoring - Google Patents

A test device for indoor cable safety anchoring Download PDF

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Publication number
CN210090185U
CN210090185U CN201920523072.2U CN201920523072U CN210090185U CN 210090185 U CN210090185 U CN 210090185U CN 201920523072 U CN201920523072 U CN 201920523072U CN 210090185 U CN210090185 U CN 210090185U
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China
Prior art keywords
steel
cable
shear
test
anchorage
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CN201920523072.2U
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Chinese (zh)
Inventor
余印根
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Fujian Yongzheng Construction Quality Inspection Co Ltd
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Fujian Yongzheng Construction Quality Inspection Co Ltd
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Abstract

The utility model relates to a test device for indoor cable safety anchoring, in particular to building material test field. The utility model comprises a fixing device and a detachable device, wherein the fixing device comprises a shear wall, steel beams are clamped at the left and right ends of the outside of the shear wall, pre-buried steel plates are arranged in the shear wall, and the steel beams are connected with the pre-buried steel plates; the detachable device comprises a fixed end anchorage, a tensioning end anchorage, a guy cable, a hollow steel plate, a core-penetrating pressure sensor and tensioning equipment; the steel beam is provided with a steel beam pore channel. The utility model overcomes among the prior art the cable receives the damage for inevitable, if can not in time detect out the damage degree of cable and produce the shortcoming that the bulk rigidity and bearing capacity descend easily. The utility model discloses weld girder steel and pre-buried steel sheet as an organic whole, utilize the girder steel of different guys corresponding co-altitude for bear the pulling force of cable, convenient and fast is and be favorable to the stress of accurate measurement cable.

Description

A test device for indoor cable safety anchoring
Technical Field
The utility model relates to a building material tests the detection area, in particular to in a test device for indoor cable safety anchoring.
Background
With the rapid development of the economy of China, the road demand is continuously developed, and the bridge plays a vital role in the rapid development of the economy of China as the life line engineering of the road traffic of China. Particularly, since the last decades, the number of external prestressed reinforced concrete bridges, large-span cable-stayed bridges, suspension bridges and steel pipe concrete arch bridges has increased rapidly, and gradually become the most important structural form of bridges at home and abroad, playing an important role in transportation, and in order to adapt to the society of a new and a new age, a large amount of capital is invested in the country every year for bridge construction.
However, the stay cable is used as a main stress structure of the bridge due to the huge increase of the number, and the stay cable is inevitably damaged under the actions of external environment, traffic load, fatigue and the like, so that the overall rigidity and the bearing capacity of the bridge are reduced. Therefore, timely and accurate inhaul cable damage identification is important work for bridge structure safe operation, and has important strategic significance for guaranteeing the healthy and stable development of China's traffic.
The research on the structural damage in China started after the 70 s, and along with the continuous construction of the national large-scale civil engineering, the structural damage identification draws more and more attention of civil workers. At present, researches on damage identification problems of the stay cable are rarely carried out at home and abroad, a safe and reliable experimental device is provided for tensioning the stay cable to carry out performance tests of the stay cable, and finally, the method is combined with different damage identification conditions of the stay cable to establish a universal stay cable damage identification method.
SUMMERY OF THE UTILITY MODEL
(1) Technical problem to be solved
The utility model overcomes among the prior art the cable receives the damage for inevitable, if can not in time detect out the damage degree of cable and produce the shortcoming that the bulk rigidity and bearing capacity descend easily. The utility model provides a test device for indoor cable safety anchoring.
(2) Technical scheme
In order to solve the technical problem, the utility model provides such a test device for indoor cable safety anchorage, including fixing device and detachable device, fixing device includes the shear force wall, the outside left and right ends clamp of shear force wall is equipped with the girder steel, install pre-buried steel sheet in the shear force wall, the girder steel is connected with the pre-buried steel sheet;
the detachable device comprises a fixed end anchorage device, a tensioning end anchorage device, a guy cable, a hollow steel plate, a core-penetrating pressure sensor and a tensioning device;
the steel beam is provided with a steel beam pore passage, the tensioning end of the stay cable penetrates through the central position of the steel beam pore passage and is fixed on the left side through a fixed end anchorage device, the left end of the steel beam is arranged on the right side, the fixed end of the stay cable is arranged on the right side of the steel beam, the right side of the fixed end of the stay cable penetrates through a hollow steel plate, the hollow steel plate is externally connected with a core penetrating pressure sensor, the hollow steel plate and the core penetrating pressure sensor penetrate through the tensioning end anchorage device in a pressing mode on the right side of the steel beam, and the tensioning end anchorage device is connected with tensioning.
Preferably, the steel beam and the embedded steel plate in the shear wall form a whole in a welding mode.
Preferably, the tensioning device is a tensioning jack.
Preferably, the cross-core pressure sensor is a three-core intelligent pressure sensor.
Preferably, the length of the stay cable is larger than the common thickness of the shear wall and the two steel beams.
(3) Advantageous effects
The utility model overcomes among the prior art the cable receives the damage for inevitable, if can not in time detect out the damage degree of cable and produce the shortcoming that the bulk rigidity and bearing capacity descend easily. In order to solve the problems, the steel beam and the embedded steel plate inside the shear wall are welded to form a whole, so that the experiment is safer and more reliable; the cable stress is controlled through the pressure sensor of punching for experimental data is more accurate, the utility model discloses simple structure, nimble light and handy, application nature are strong, and maneuverability is strong, convenient to popularize and use.
Drawings
Fig. 1 is a schematic structural installation diagram of the test device for indoor stay cable safety anchoring of the present invention;
figure 2 is the utility model discloses the left side view of girder steel part.
The reference signs are: 1. a fixed end anchorage device; 2. a tension end anchorage; 3. a shear wall; 4. a steel beam; 5. a cable; 6. a hollow steel plate; 7. a feed-through pressure sensor; 8. tensioning equipment; 9. a steel beam channel.
Detailed Description
The invention is further described with reference to the accompanying drawings and examples.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "vertical", "horizontal", "up", "down", "front", "back", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description of the present invention, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
As shown in fig. 1-2, the testing device for indoor cable safety anchoring according to the present invention comprises a fixing device and a detachable device, wherein the fixing device comprises a shear wall 3, steel beams 4 are clamped at the left and right ends of the outer part of the shear wall 3, pre-buried steel plates are installed in the shear wall 3, and the steel beams 4 are connected with the pre-buried steel plates; the detachable device comprises a fixed end anchorage 1, a tensioning end anchorage 2, a guy cable 5, a hollow steel plate 6, a piercing pressure sensor 7 and a tensioning device 8; be equipped with girder steel pore 9 on the girder steel 4, the tensioning end of cable 5 passes the central point of girder steel pore 9 puts, fixes in the left side through stiff end ground tackle 1 the left end of girder steel 4, the stiff end of cable 5 is established on the right side the right of girder steel 4, hollow steel sheet 6 is passed through on the right side of the stiff end of cable 5, hollow steel sheet 6 external one is worn heart pressure sensor 7, hollow steel sheet 6 with it passes through to wear heart pressure sensor 7 stretch out the end ground tackle 2 pressfitting right side on the girder steel 4, stretch out end ground tackle 2 with stretch out equipment 8 links to each other.
In order to better achieve the effect of the experiment, the utility model also comprises that the steel beam 4 and the pre-buried steel plate in the shear wall 3 form a whole in a welding mode; the tensioning equipment 8 is a tensioning jack; the feed-through pressure sensor 7 is a three-core intelligent pressure sensor; the length of the stay cable 5 is larger than the common thickness of the shear wall 3 and the two steel beams 4.
The working principle is as follows: the shear wall 3 is provided with an embedded steel plate, the steel beams 4 are connected with the embedded steel plate in a welding mode, and the lengths of different guys 5 correspond to the steel beams 4 with different heights (namely the widths of the steel beams 4 on the left side and the right side) so as to be convenient for bearing the pressure of the guys 5; the fixed and tensioning ends of the stay cable 5 sequentially pass through the center of a steel beam pore channel 9, a hollow steel plate 6, a piercing pressure sensor 7 and a tensioning device 8 (wherein the tensioning device is a tensioning jack special for anchor cable measurement) are sequentially installed at the tensioning end of the stay cable 5, before a test is carried out, the piercing pressure sensor 7 (wherein the piercing pressure sensor 7 is a three-core intelligent pressure sensor with the model of MKY-JMZX-3103A, the sensitivity can be measured to 0.1KN, the method is suitable for cable force measurement and cable tensioning construction control under various conditions and is suitable for force value calibration of the jack) needs to be calibrated before being used, so that the accuracy of test data together is ensured, and the stress of the stay cable 5 is controlled through the piercing pressure sensor 7; after the vibration signal test to 5 health status of cable, will move back the anchor, the utility model discloses cable 5's stress passes through pressure sensor and controls for experimental data is more accurate.
The above-mentioned embodiments only express the preferred embodiments of the present invention, and the description thereof is more specific and detailed, but the present invention is not limited to these embodiments, and it should be noted that it is obvious to those skilled in the art. Without departing from the spirit of the present invention, any improvement is within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (5)

1. The utility model provides a test device for indoor cable safety anchoring which characterized in that: the fixing device comprises a shear wall (3), steel beams (4) are clamped at the left end and the right end of the outer part of the shear wall (3), embedded steel plates are installed in the shear wall (3), and the steel beams (4) are connected with the embedded steel plates;
the detachable device comprises a fixed end anchorage device (1), a tensioning end anchorage device (2), an inhaul cable (5), a hollow steel plate (6), a core-penetrating pressure sensor (7) and tensioning equipment (8);
be equipped with girder steel pore (9) on girder steel (4), the stretch-draw end of cable (5) passes the central point of girder steel pore (9) puts, fixes in the left side through stiff end ground tackle (1) the left end of girder steel (4), the stiff end of cable (5) is established on the right side the right of girder steel (4), hollow steel sheet (6) are passed through on the right side of the stiff end of cable (5), hollow steel sheet (6) external punching pressure sensor (7), hollow steel sheet (6) with punching pressure sensor (7) pass through stretch-draw end ground tackle (2) pressfitting is in the right side on girder steel (4), stretch-draw end ground tackle (2) with stretch-draw equipment (8) link to each other.
2. The test device for indoor stay cable safety anchorage according to claim 1, characterized in that: the steel beam (4) and the embedded steel plate in the shear wall (3) form a whole in a welding mode.
3. The test device for indoor stay cable safety anchorage according to claim 1, characterized in that: the tensioning equipment (8) is a tensioning jack.
4. The test device for indoor stay cable safety anchorage according to claim 1, characterized in that: the feed-through pressure sensor (7) is a three-core intelligent pressure sensor.
5. The test device for indoor stay cable safety anchorage according to claim 1, characterized in that: the length of the stay cable (5) is larger than the common thickness of the shear wall (3) and the two steel beams (4).
CN201920523072.2U 2019-04-17 2019-04-17 A test device for indoor cable safety anchoring Active CN210090185U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920523072.2U CN210090185U (en) 2019-04-17 2019-04-17 A test device for indoor cable safety anchoring

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920523072.2U CN210090185U (en) 2019-04-17 2019-04-17 A test device for indoor cable safety anchoring

Publications (1)

Publication Number Publication Date
CN210090185U true CN210090185U (en) 2020-02-18

Family

ID=69474789

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201920523072.2U Active CN210090185U (en) 2019-04-17 2019-04-17 A test device for indoor cable safety anchoring

Country Status (1)

Country Link
CN (1) CN210090185U (en)

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