CN114279873B - Flexible splice joint fatigue test device - Google Patents
Flexible splice joint fatigue test device Download PDFInfo
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- CN114279873B CN114279873B CN202111615968.1A CN202111615968A CN114279873B CN 114279873 B CN114279873 B CN 114279873B CN 202111615968 A CN202111615968 A CN 202111615968A CN 114279873 B CN114279873 B CN 114279873B
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Abstract
The application discloses a flexible splice joint fatigue test device, which comprises a flexible splice joint test piece consisting of a bottom layer panel, a paving side plate, an upper layer deformation joint, a sensor telescopic pipe and an L-shaped steel support plate; and a platform base plate, a horizontal displacement main controller, a vertical load controller and a temperature and salt corrosion cycle cover plate; the sensor telescopic tube acquires horizontal deformation displacement data, vertical deformation displacement data and vibration deformation displacement data; the horizontal displacement main controller is used for performing a horizontal deformation fatigue test; the vertical load controller is used for performing a vertical deformation fatigue test and a load vibration fatigue test; the temperature and salt corrosion cycle cover panel is used for performing a temperature change fatigue test, a humidity change fatigue test and a salt corrosion fatigue test; the application tests the durability of the flexible splice joint under different environments, simulates extreme temperature and humidity environments, can simultaneously carry out horizontal stretching and compression deformation tests, and improves the fatigue test efficiency and reliability of the flexible splice joint.
Description
Technical Field
The application relates to the technical field of fatigue tests, in particular to a flexible splice joint fatigue test device.
Background
With social progress and rapid traffic development, the bridge-tunnel expansion joint has become one of the key technologies for steel bridge construction. The flexible splice seam is used as one of the expansion joints, and because the used material is flexible, the flexible splice seam can be deformed in cooperation with a road surface structure to the greatest extent, has good bonding performance with the road surface material, and keeps the road surface smooth and the travelling comfort degree, the flexible splice seam is often applied to the construction of the road surface.
At present, expressways in China are continuously developed and enlarged, the traffic flow is increasingly increased, and particularly the traffic ratio of trucks is continuously increased. The flexible splice joint structure of the bridge and the tunnel is stressed in a complex manner, and is always a weak link of the pavement structure. Under the condition that coupling factors such as environmental temperature change, bridge tunnel structural joint deformation and the like influence, the fatigue damage problem of the flexible splice joint under the effects of high stress amplitude and high cycle is gradually outstanding, and the stability and the comfort of road surface driving are influenced.
In order to verify the fatigue resistance and durability of the flexible splice joint, the prior art generally uses a horizontal tension test, but the method cannot test the durability of the flexible splice joint under the multi-factors of environmental temperature, heavy traffic, vibration deformation and the like.
Disclosure of Invention
The application discloses a flexible splice joint fatigue test device, which aims to solve the problem that in the prior art, when a flexible splice joint is subjected to fatigue test, the test cannot be performed from multiple angles such as temperature, humidity, pressure, salt corrosion and the like, so that the test efficiency is low.
The application discloses a flexible splice joint fatigue test device, which comprises a flexible splice joint test piece consisting of a bottom layer panel, a paving side plate, an upper layer deformation joint, a sensor telescopic pipe and an L-shaped steel support plate; and a platform base plate, a horizontal displacement main controller, a vertical load controller and a temperature and salt corrosion cycle cover plate;
the L-shaped steel support plates are axially symmetrically arranged in two, and a gap is arranged between the two L-shaped steel support plates; the bottom layer panel and the paving side plates are arranged in two and are respectively arranged on the L-shaped steel support plate and are tightly attached to the edges of the L-shaped steel support plate; the paving side plate is positioned at the upper part of the bottom layer panel; the area of the paving side plate is smaller than that of the bottom panel;
the upper deformation joint is positioned at the upper part of the bottom panel and between the two paving side plates; the sensor telescopic pipe is positioned in the upper deformation joint and is attached to the bottom panel; the sensor telescopic tube is used for acquiring horizontal deformation displacement data, vertical deformation displacement data and vibration deformation displacement data of the bottom panel and the upper deformation joint;
the platform base plate is arranged at the bottom of the flexible splice joint test piece and used for fixing the flexible splice joint test piece;
the horizontal displacement main controller is arranged on one side of the flexible splice joint test piece and is used for carrying out horizontal deformation fatigue test on the flexible splice joint test piece;
the vertical load controller is arranged at the top of the flexible splice joint test piece and is used for carrying out vertical deformation fatigue test and load vibration fatigue test on the flexible splice joint test piece;
the temperature and salt corrosion circulating cover panel is arranged between the vertical load controller and the flexible splice joint test piece; the temperature and salt corrosion cycle cover panel is used for performing temperature change fatigue test, humidity change fatigue test and salt corrosion fatigue test on the flexible splice joint test piece.
Optionally, the length of the sensor telescopic tube is 200-500 mm, the diameter of the sensor telescopic tube is 20-35 mm, and the sensor telescopic tube comprises a displacement meter, a protection tube, a filling body and a shear plate;
the displacement is resistance type, vibrating wire type or light type, the measuring range is 50-200 mm, and the precision is 0.01-0.05 mm; the protection tube is a square tube or a round tube made of steel or iron, and the thickness of the protection tube is 2-10 mm.
Optionally, the shear plates are L-shaped, are arranged in two, are axisymmetrically positioned on the two bottom layer panels, and are connected with the bottom layer panels through bolts; the vertical plane of the shear plate is 300-500 mm, the shear plate is a honeycomb type multi-hole, the diameter of the hole is 5-20 mm, and the shear plate is used for supporting the displacement meter, the protection tube and the filling body.
Optionally, the thickness of the L-shaped steel support plate is 8-32 mm, the vertical height is 100-150 mm, the horizontal length is 150-200 mm, and an M-shaped pull rod is arranged on the inner side of the L-shaped steel support plate; a hard steel flat plate is arranged between the two bottom layer panels, and the length of the hard steel flat plate is 60-150 mm, and the thickness of the hard steel flat plate is 1-5 mm.
Optionally, the materials of the bottom panel, the paving side plate and the upper layer are deformed according to the test requirement.
Optionally, the platform base plate comprises a stiffening support plate fixed by bolts, a lifting rod and a steel roller; the thickness of the stiffening support guard plate is 10-30 mm, the stiffening support guard plate is fixed on one side of the L-shaped steel support plate, and the stiffening support guard plate is welded or hinged with the L-shaped steel support plate;
the diameter of the lifting rod is 6-22 mm, the length of the lifting rod is 30-150 mm, the steel rolling shaft is round steel with a bearing, and the diameter of the steel rolling shaft is 12-30 mm;
the lifting rod and the steel roller move horizontally and vertically along with the L-shaped steel support plate.
Optionally, the horizontal displacement main controller comprises a universal socket fastener and a socket base, and the socket base is detachable; the socket joint base and the L-shaped steel support plate comprise socket joints, the diameter of each socket joint is 10-40 mm, and the diameter of each socket joint base is 100-150 mm and the thickness of each socket joint base is 10-30 mm;
the horizontal displacement main controller is used for controlling the horizontal displacement of the flexible splice joint test piece, and the range of the horizontal displacement is-50 mm.
Optionally, the vertical load controller comprises a steel backing plate and a rubber backing plate, wherein the thickness of the steel backing plate is 10-20 mm, the length and width dimensions are 200mm multiplied by 200mm, and the thickness of the rubber backing plate is 10-35 mm, and the length and width dimensions are 200mm multiplied by 200mm;
the vertical load controller is used for controlling the vertical displacement of the flexible joint seam test piece, the vertical load range is 0-2.5 MPa, and the vertical load controller is used for controlling the vibration of the flexible joint seam test piece.
Optionally, the temperature and salt corrosion circulation cover panel comprises a circulation pipe, a temperature control box, a salt corrosion box, a heat preservation cover and a pump, wherein the circulation pipe is a loop, the diameter is 20-30 mm, the thickness is 2-5 mm, and the arrangement interval is 50-100 mm;
the temperature regulation range of the temperature control box is-10-90 ℃; the salt corrosion box is connected with the atomizing spray heads, the transverse and longitudinal spacing is 10-20 cm, and the atomizing spray heads are controlled manually or automatically in a connecting line.
Optionally, the temperature and salt corrosion cycle cover panel has a temperature variation range of 0-70 ℃ for a temperature variation fatigue test, and a humidity variation range of 0-100% for a humidity variation fatigue test.
The application discloses a flexible splice joint fatigue test device, which comprises a flexible splice joint test piece consisting of a bottom layer panel, a paving side plate, an upper layer deformation joint, a sensor telescopic pipe and an L-shaped steel support plate; and a platform base plate, a horizontal displacement main controller, a vertical load controller and a temperature and salt corrosion cycle cover plate; the sensor telescopic tube is used for acquiring horizontal deformation displacement data, vertical deformation displacement data and vibration deformation displacement data of the bottom panel and the upper deformation joint; the horizontal displacement main controller is arranged on one side of the flexible splice joint test piece and is used for performing a horizontal deformation fatigue test; the vertical load controller is arranged at the top of the flexible splice joint test piece and is used for performing a vertical deformation fatigue test and a load vibration fatigue test; the temperature and salt corrosion circulating cover panel is arranged between the vertical load controller and the flexible splice joint test piece; the temperature and salt corrosion cycle cover panel is used for performing a temperature change fatigue test, a humidity change fatigue test and a salt corrosion fatigue test.
According to the application, the flexible splice joint test piece is simulated and constructed, and can be replaced by different materials, so that different test requirements are met, and the efficiency of a flexible splice joint fatigue test is improved; the fatigue test of the flexible splice joint comprises a horizontal tension test, a vertical load test, a temperature test, a humidity test and a salt corrosion test, the durability of the flexible splice joint in different environments can be tested in multiple dimensions and multiple aspects, the environments such as high temperature in summer, low temperature in winter, wet weather of rainwater, extreme dry environment and the like can be simulated, the horizontal tension and compression deformation displacement test can be simultaneously carried out, the long-term use state of the bridge-tunnel flexible splice joint structure is verified, and the reliability of the fatigue test of the flexible splice joint is improved.
Drawings
In order to more clearly illustrate the technical solution of the present application, the drawings that are needed in the embodiments will be briefly described below, and it will be obvious to those skilled in the art that other drawings can be obtained from these drawings without inventive effort.
FIG. 1 is a schematic structural diagram of a flexible splice joint fatigue test device according to an embodiment of the present application;
in the figure: the device comprises a 1-bottom layer panel, a 2-paving side plate, a 3-upper layer deformation joint, a 4-sensor telescopic pipe, a 41-displacement meter, a 42-protection pipe, a 43-filling body, a 44-shear plate, a 5-L steel support plate, a 51-M type pull rod, a 52-hard steel flat plate, a 6-platform base plate, a 61-stiffening support plate, a 62-lifting rod, a 63-steel roller, a 7-horizontal displacement main controller, a 71-universal socket fastener, a 72-socket base, an 8-vertical load controller, 81-steel base plates, 82-rubber base plates and a 9-temperature and salt corrosion cycle cover plate.
Detailed Description
The application discloses a flexible splice joint fatigue test device, which aims to solve the problem that in the prior art, when a flexible splice joint is subjected to fatigue test, the test cannot be performed from multiple angles such as temperature, humidity, pressure, salt corrosion and the like, so that the test efficiency is low.
The application discloses a flexible splice joint fatigue test device, which is shown in a structural schematic diagram in FIG. 1, and comprises a flexible splice joint test piece consisting of a bottom layer panel 1, a paving side plate 2, an upper layer deformation joint 3, a sensor telescopic tube 4 and an L-shaped steel support plate 5; and a platform base plate 6, a horizontal displacement main controller 7, a vertical load controller 8 and a temperature and salt corrosion cycle cover plate 9.
The L-shaped steel support plates 5 are axially symmetrically arranged in two, and a gap is arranged between the two L-shaped steel support plates; the bottom panel 1 and the paving side plates 2 are arranged in two and are respectively arranged on the L-shaped steel support plates 5 and are tightly attached to the edges of the L-shaped steel support plates 5; the paving side plate 2 is positioned at the upper part of the bottom layer panel 1; the paving side plates 2 are smaller than the bottom layer panel 1 in area.
The upper deformation joint 3 is positioned at the upper part of the bottom panel 1 and between two paving side plates; the sensor telescopic pipe 4 is positioned in the upper deformation joint 3 and is attached to the bottom panel 1; the sensor telescopic pipe 4 is used for acquiring horizontal deformation displacement data, vertical deformation displacement data and vibration deformation displacement data of the bottom panel 1 and the upper deformation joint 3.
The platform base plate 6 is installed at the bottom of the flexible splice joint test piece and is used for fixing the flexible splice joint test piece.
The horizontal displacement main controller 7 is arranged on one side of the flexible splice joint test piece and is used for carrying out horizontal deformation fatigue test on the flexible splice joint test piece.
The vertical load controller 8 is installed at the top of the flexible splice joint test piece and is used for carrying out vertical deformation fatigue test and load vibration fatigue test on the flexible splice joint test piece.
The temperature and salt corrosion circulating cover plate 9 is arranged between the vertical load controller 8 and the flexible splice joint test piece; the temperature and salt corrosion cycle cover panel 9 is used for performing temperature change fatigue test, humidity change fatigue test and salt corrosion fatigue test on the flexible splice joint test piece.
Further, the length of the sensor telescopic tube 4 is 200-500 mm, and the diameter is 20-35 mm, and the sensor telescopic tube 4 comprises a displacement meter 41, a protection tube 42, a filling body 43 and a shear plate 44.
The displacement meter 41 is resistive, vibrating wire type or light type, the measuring range is 50-200 mm, and the precision is 0.01-0.05 mm; the protection tube 42 is a square tube or a round tube made of steel or iron, and has a thickness of 2-10 mm.
Further, the shear plates 44 are L-shaped, are arranged in two, are axisymmetrically positioned on the two bottom layer panels, and are connected with the bottom layer panel 1 through bolts; the vertical plane height of the shear plate 44 is 300-500 mm, the shear plate 44 is a honeycomb type multi-hole, the diameter of the hole is 5-20 mm, and the shear plate 44 is used for supporting the displacement meter 41, the protection tube 42 and the filling body 43.
Further, the thickness of the L-shaped steel support plate 5 is 8-32 mm, the vertical height is 100-150 mm, the horizontal length is 150-200 mm, and an M-shaped pull rod 51 is arranged on the inner side of the L-shaped steel support plate 5; a hard steel flat plate 52 is arranged between the two bottom layer panels, and the length of the hard steel flat plate 52 is 60-150 mm and the thickness of the hard steel flat plate is 1-5 mm.
Further, the materials of the bottom layer panel 1, the paving side plate 2 and the upper layer deformation joint 3 are changed according to test requirements.
Further, the platform base plate 6 comprises a stiffening support plate 61, lifting rods 62 and steel rollers 63 which are fixed by bolts; the thickness of the stiffening support plate 61 is 10-30 mm, the stiffening support plate 61 is fixed on one side of the L-shaped steel support plate 5, and the stiffening support plate 61 is welded or hinged with the L-shaped steel support plate 5.
The diameter of the lifting rod 62 is 6-22 mm, the length is 30-150 mm, the steel roller 63 is round steel with a bearing, and the diameter is 12-30 mm.
The lifting rod 62 and the steel roller 63 move horizontally and vertically along with the L-shaped steel support plate 5.
Further, the horizontal displacement main controller 7 comprises a universal socket and spigot assembly 71 and a socket base 72, and the socket base 72 is detachable; the socket base 72 and the L-shaped steel support plate 5 comprise socket buckles, the diameter of each socket buckle is 10-40 mm, and the diameter of the socket base 72 is 100-150 mm and the thickness of each socket base is 10-30 mm.
The horizontal displacement main controller 7 is used for controlling the horizontal displacement of the flexible splice joint test piece, and the range of the horizontal displacement is-50 mm.
Further, the vertical load controller 8 comprises a steel backing plate 81 and a rubber backing plate 82, wherein the thickness of the steel backing plate 81 is 10-20 mm, the length and width dimensions are 200mm×200mm, and the thickness of the rubber backing plate 82 is 10-35 mm, and the length and width dimensions are 200mm×200mm.
The vertical load controller 8 is used for controlling the vertical displacement of the flexible joint test piece, the vertical load range is 0-2.5 MPa, and the vibration of the flexible joint test piece is controlled.
Further, the temperature and salt corrosion circulation cover panel 9 comprises a circulation pipe, a temperature control box, a salt corrosion box, a heat preservation cover and a pump, wherein the circulation pipe is a loop, the diameter is 20-30 mm, the thickness is 2-5 mm, and the arrangement interval is 50-100 mm.
The temperature regulation range of the temperature control box is-10-90 ℃; the salt corrosion box is connected with the atomizing spray heads, the transverse and longitudinal spacing is 10-20 cm, and the atomizing spray heads are controlled manually or automatically in a connecting line.
Further, the temperature and salt corrosion cycle cover panel 9 has a temperature variation range of 0-70 ℃ for a temperature variation fatigue test, and a humidity variation range of 0-100% for a humidity variation fatigue test.
The application discloses a flexible splice joint fatigue test device which comprises a flexible splice joint test piece, wherein the flexible splice joint test piece consists of a bottom layer panel 1, a paving side plate 2, an upper layer deformation joint 3, a sensor telescopic pipe 4 and an L-shaped steel support plate 5; and a platform base plate 6, a horizontal displacement main controller 7, a vertical load controller 8 and a temperature and salt corrosion cycle cover plate 9; the sensor telescopic pipe 4 is used for acquiring horizontal deformation displacement data, vertical deformation displacement data and vibration deformation displacement data of the bottom panel 1 and the upper deformation joint 3; the platform base plate 6 is arranged at the bottom of the flexible splice joint test piece and used for fixing the flexible splice joint test piece; the horizontal displacement main controller 7 is arranged on one side of the flexible splice joint test piece and is used for carrying out horizontal deformation fatigue test on the flexible splice joint test piece; the vertical load controller 8 is arranged at the top of the flexible splice joint test piece and is used for carrying out vertical deformation fatigue test and load vibration fatigue test on the flexible splice joint test piece; the temperature and salt corrosion circulating cover plate 9 is arranged between the vertical load controller 8 and the flexible splice joint test piece; the temperature and salt corrosion cycle cover panel 9 is used for performing temperature change fatigue test, humidity change fatigue test and salt corrosion fatigue test on the flexible splice joint test piece.
According to the application, the flexible splice joint test piece is simulated and constructed, and can be replaced by different materials, so that different test requirements are met, and the efficiency of a flexible splice joint fatigue test is improved; the fatigue test of the flexible splice joint comprises a horizontal tension test, a vertical load test, a temperature test, a humidity test and a salt corrosion test, the durability of the flexible splice joint in different environments can be tested in multiple dimensions and multiple aspects, the environments such as high temperature in summer, low temperature in winter, wet weather of rainwater, extreme dry environment and the like can be simulated, the horizontal tension and compression deformation displacement test can be simultaneously carried out, the long-term use state of the bridge-tunnel flexible splice joint structure is verified, and the reliability of the fatigue test of the flexible splice joint is improved.
The application has been described in detail in connection with the specific embodiments and exemplary examples thereof, but such description is not to be construed as limiting the application. It will be understood by those skilled in the art that various equivalent substitutions, modifications or improvements may be made to the technical solution of the present application and its embodiments without departing from the spirit and scope of the present application, and these fall within the scope of the present application. The scope of the application is defined by the appended claims.
Claims (10)
1. The flexible splice joint fatigue test device is characterized by comprising a flexible splice joint test piece consisting of a bottom layer panel (1), a paving side plate (2), an upper layer deformation joint (3), a sensor telescopic tube (4) and an L-shaped steel support plate (5); the platform base plate (6), the horizontal displacement main controller (7), the vertical load controller (8) and the temperature and salt corrosion cycle cover plate (9);
the L-shaped steel support plates (5) are axially symmetrically arranged in two, and a gap is arranged between the two L-shaped steel support plates; the bottom panel (1) and the paving side plates (2) are arranged in two and are respectively arranged on the L-shaped steel support plates (5) and are tightly attached to the edges of the L-shaped steel support plates (5); the paving side plate (2) is positioned at the upper part of the bottom layer panel (1); the area of the paving side plate (2) is smaller than that of the bottom layer panel (1);
the upper deformation joint (3) is positioned at the upper part of the bottom panel (1) and between the two paving side plates; the sensor telescopic pipe (4) is positioned in the upper deformation joint (3) and is attached to the bottom panel (1); the sensor telescopic tube (4) is used for acquiring horizontal deformation displacement data, vertical deformation displacement data and vibration deformation displacement data of the bottom layer panel (1) and the upper layer deformation joint (3);
the platform base plate (6) is arranged at the bottom of the flexible splice joint test piece and used for fixing the flexible splice joint test piece;
the horizontal displacement main controller (7) is arranged on one side of the flexible splice joint test piece and is used for carrying out horizontal deformation fatigue test on the flexible splice joint test piece;
the vertical load controller (8) is arranged at the top of the flexible splice joint test piece and is used for carrying out vertical deformation fatigue test and load vibration fatigue test on the flexible splice joint test piece;
the temperature and salt corrosion circulating cover panel (9) is arranged between the vertical load controller (8) and the flexible splice joint test piece; the temperature and salt corrosion circulating cover panel (9) is used for performing temperature change fatigue test, humidity change fatigue test and salt corrosion fatigue test on the flexible splice joint test piece.
2. The flexible splice joint fatigue test device according to claim 1, wherein the length of the sensor telescopic tube (4) is 200-500 mm, the diameter is 20-35 mm, and the sensor telescopic tube (4) comprises a displacement meter (41), a protection tube (42), a filling body (43) and a shear plate (44);
the displacement meter (41) is resistive, vibrating wire or light, the measuring range is 50-200 mm, and the precision is 0.01-0.05 mm; the protection pipe (42) is a square pipe or a round pipe made of steel or iron, and the thickness is 2-10 mm.
3. The flexible splice joint fatigue test device according to claim 2, wherein the shear plates (44) are L-shaped, are arranged in two, are axisymmetrically positioned on the two bottom layer panels, and are connected with the bottom layer panels (1) through bolts; the vertical plane height of the shear plate (44) is 300-500 mm, the shear plate (44) is a honeycomb multi-hole, the diameter of the hole is 5-20 mm, and the shear plate (44) is used for supporting the displacement meter (41), the protection tube (42) and the filling body (43).
4. The flexible splice joint fatigue test device according to claim 1, wherein the thickness of the L-shaped steel support plate (5) is 8-32 mm, the vertical height is 100-150 mm, the horizontal length is 150-200 mm, and an M-shaped pull rod (51) is arranged on the inner side of the L-shaped steel support plate (5); a hard steel flat plate (52) is arranged between the two bottom layer panels, and the length of the hard steel flat plate (52) is 60-150 mm and the thickness of the hard steel flat plate is 1-5 mm.
5. The flexible splice joint fatigue test device according to claim 1, wherein the materials of the bottom panel (1), the paving side plate (2) and the upper deformation joint (3) are changed according to test requirements.
6. A flexible splice joint fatigue test device according to claim 1, wherein the platform base plate (6) comprises a bolted stiffening support plate (61), lifting rods (62) and steel rollers (63); the thickness of the stiffening support plate (61) is 10-30 mm, the stiffening support plate (61) is fixed on one side of the L-shaped steel support plate (5), and the stiffening support plate (61) is welded or hinged with the L-shaped steel support plate (5);
the diameter of the lifting rod (62) is 6-22 mm, the length of the lifting rod is 30-150 mm, the steel roller (63) is round steel with a bearing, and the diameter of the steel roller is 12-30 mm;
the lifting rod (62) and the steel roller (63) move horizontally and vertically along with the L-shaped steel support plate (5).
7. The flexible splice joint fatigue test device of claim 1, wherein the horizontal displacement master controller (7) includes a universal socket and spigot joint fastener (71) and a socket base (72), the socket base (72) being detachable; the socket joint base (72) and the L-shaped steel support plate (5) comprise socket joints, the diameter of each socket joint is 10-40 mm, and the diameter of the socket joint base (72) is 100-150 mm and the thickness of each socket joint base is 10-30 mm;
the horizontal displacement main controller (7) is used for controlling the horizontal displacement of the flexible splice joint test piece, and the range of the horizontal displacement is-50 mm.
8. The flexible splice joint fatigue test device according to claim 1, wherein the vertical load controller (8) comprises a steel backing plate (81) and a rubber backing plate (82), the steel backing plate (81) has a thickness of 10-20 mm, length and width dimensions of 200mm x 200mm, and the rubber backing plate (82) has a thickness of 10-35 mm, length and width dimensions of 200mm x 200mm;
the vertical load controller (8) is used for controlling the vertical displacement of the flexible joint test piece, the vertical load range is 0-2.5 MPa, and the vibration of the flexible joint test piece is controlled.
9. The flexible splice joint fatigue test device according to claim 1, wherein the temperature and salt corrosion circulation cover panel (9) comprises a circulation pipe, a temperature control box, a salt corrosion box, a heat insulation cover and a pump, wherein the circulation pipe is a loop, the diameter is 20-30 mm, the thickness is 2-5 mm, and the arrangement interval is 50-100 mm;
the temperature regulation range of the temperature control box is-10-90 ℃; the salt corrosion box is connected with the atomizing spray heads, the transverse and longitudinal spacing is 10-20 cm, and the atomizing spray heads are controlled manually or automatically in a connecting line.
10. The flexible splice joint fatigue test device according to claim 1, wherein the temperature and salt corrosion cycle cover panel (9) has a temperature variation range of 0-70 ℃ for a temperature variation fatigue test and a humidity variation range of 0-100% for a humidity variation fatigue test.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111615968.1A CN114279873B (en) | 2021-12-27 | 2021-12-27 | Flexible splice joint fatigue test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111615968.1A CN114279873B (en) | 2021-12-27 | 2021-12-27 | Flexible splice joint fatigue test device |
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| CN114279873A CN114279873A (en) | 2022-04-05 |
| CN114279873B true CN114279873B (en) | 2023-09-22 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201149565Y (en) * | 2007-11-21 | 2008-11-12 | 长安大学 | Analogue test apparatus for reflection crack propagation of sheet pavement |
| JP2011064508A (en) * | 2009-09-15 | 2011-03-31 | Fukuoka Univ | Fatigue tester |
| CN205404297U (en) * | 2016-03-30 | 2016-07-27 | 温州际高检测仪器有限公司 | Tired powerful testing machine of seam |
-
2021
- 2021-12-27 CN CN202111615968.1A patent/CN114279873B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201149565Y (en) * | 2007-11-21 | 2008-11-12 | 长安大学 | Analogue test apparatus for reflection crack propagation of sheet pavement |
| JP2011064508A (en) * | 2009-09-15 | 2011-03-31 | Fukuoka Univ | Fatigue tester |
| CN205404297U (en) * | 2016-03-30 | 2016-07-27 | 温州际高检测仪器有限公司 | Tired powerful testing machine of seam |
Non-Patent Citations (1)
| Title |
|---|
| 模块型桥梁伸缩缝疲劳试验研究;王立成, 王清湘, 司炳君, 赖尚贤;土木工程学报(12);全文 * |
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| CN114279873A (en) | 2022-04-05 |
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