CN109374422B - Large-tonnage integrated multifunctional space loading device - Google Patents
Large-tonnage integrated multifunctional space loading device Download PDFInfo
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- CN109374422B CN109374422B CN201811339669.8A CN201811339669A CN109374422B CN 109374422 B CN109374422 B CN 109374422B CN 201811339669 A CN201811339669 A CN 201811339669A CN 109374422 B CN109374422 B CN 109374422B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
- G01N3/12—Pressure testing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
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Abstract
The invention provides a large-tonnage integrated multifunctional space loading device, wherein a loading beam and a foundation beam are arranged in parallel at intervals along the vertical direction; the loading beam is of a cross structure and consists of a longitudinal box loading beam and a transverse box loading beam; the upper surface of the cross overlapped part of the longitudinal box loading beam and the transverse box loading beam is provided with a longitudinal horizontal load force transmission component; the actuators are used for providing transverse horizontal acting force and longitudinal horizontal acting force; pulling force is applied to the pull rod through the hydraulic jack, so that downward acting counter force is applied to the loading beam to provide vertical acting force; the articulated seat is arranged between the foundation beam and the pull rod, so that the pull rod has certain rotation capacity when the loading device applies horizontal load, and the bidirectional horizontal displacement of the test piece is adapted. The loading test device can provide large-tonnage vertical and bidirectional horizontal force, is suitable for components with any cross-section shape, and has strong universality.
Description
Technical Field
The invention relates to a large-tonnage integrated multifunctional space loading device, and belongs to the technical field of structural engineering test devices.
Background
In experimental investigation of structural engineering, it is important to reasonably select a loading device according to the purpose of the experiment. The loading device can simulate the stress, deformation and damage processes of the component under the action of the actual load, so that people can know the stress, deformation and damage rules of the component conveniently, and a basis is provided for the performance design of the component. The traditional anti-seismic test device generally only can apply vertical force and unidirectional horizontal acting force, and the vertical force cannot be applied excessively, otherwise, larger friction force can be generated, and the test precision is affected. In addition, these loading devices are generally only suitable for test pieces of a specific cross-sectional shape, and are not generic.
Disclosure of Invention
The invention aims to solve the main technical problems of providing a large-tonnage integrated multifunctional space loading test device which can provide large-tonnage vertical and bidirectional horizontal force effects, is suitable for components with arbitrary cross-section shapes, and has strong universality.
In order to solve the technical problems, the invention provides a large-tonnage integrated multifunctional space loading device, which comprises: the device comprises a loading beam, a foundation beam, an actuator, a hydraulic jack, a pull rod and a hinging seat; the loading beams and the foundation beams are arranged in parallel at intervals along the vertical direction;
the loading beam is of a cross structure and consists of a longitudinal box loading beam and a transverse box loading beam; the upper surface of the longitudinal box loading beam is provided with a longitudinal horizontal load force transmission component;
the actuators are three in number and are used for providing horizontal acting force, wherein the two actuators are symmetrically arranged on two sides of the transverse box-shaped loading beam, and the actuating head is connected with the longitudinal box-shaped loading beam through bolts and is used for providing transverse horizontal acting force; the actuating head of the other actuator is connected with the longitudinal horizontal load force transmission component through a bolt and is used for providing longitudinal horizontal acting force;
the hydraulic jacks are arranged above the transverse box-type loading beams, and the pull rods are in one-to-one correspondence with the hydraulic jacks and are used for connecting the loading beams and the foundation beams; pulling force is applied to the pull rod through the hydraulic jack, so that downward acting counter force is applied to the loading beam to provide vertical acting force; the articulated seat is arranged between the foundation beam and the pull rod, so that the pull rod has a certain rotation capacity when the loading device applies horizontal load, and the bidirectional horizontal displacement of the test piece is adapted.
In a preferred embodiment: the inside of vertical box loading beam and horizontal box loading beam all is equipped with the stiffening plate, four inner walls welded fastening of stiffening plate and vertical box loading beam and horizontal box loading beam.
In a preferred embodiment: the stiffening plates at the two ends of the longitudinal box loading beam and the transverse box loading beam along the length are respectively in a shape like a Chinese character 'Hui'; the distance between the back-shaped stiffening plate and the end faces of the longitudinal box loading beam and the transverse box loading beam along the length is not greater than the thickness of the back-shaped stiffening plate.
In a preferred embodiment: the foundation beam is also of a cross structure, wherein the longitudinal beam is of a box shape, and the transverse beam is of an I shape; and stiffening plates are arranged in the longitudinal beam and the transverse carrier beam.
In a preferred embodiment: the stiffening plates in the box girder are arranged at intervals consistent with the loading girder, and the stiffening plates at the two ends along the length direction are shaped like Chinese character 'Hui'; the distance between the stiffening plates and the end faces at the two ends of the transverse beam along the length direction is not more than the thickness of the stiffening plates, and the distance between the stiffening plates is not more than 10 times the thickness of the stiffening plates.
In a preferred embodiment: the loading beam and the foundation beam are respectively provided with a hole for the pull rod to pass through, and the circle center distance between the loading beam and the foundation beam is not less than twice the diameter of the hole.
In a preferred embodiment: the bolt hole on the loading beam is determined according to the position of the actuating head, and the distance between the center of the circle and the edge of the near side is not less than three times of the diameter of the bolt hole;
the center distance of the center of the bolt hole on the foundation beam is not less than twice the diameter of the bolt hole.
In a preferred embodiment: and dense small bolt holes are reserved at the bottom of the loading beam and the top of the foundation beam, and bolts of corresponding specifications are matched to fix the test piece between the loading beam and the foundation beam, wherein the distance between the small bolt holes is not less than three times of the diameter of the small bolt holes.
Compared with the prior art, the technical scheme of the invention has the following beneficial effects:
the invention provides a large-tonnage integrated multifunctional space loading device which integrates large tonnage, multiple functions and bidirectional loading. Large tonnage: the loading device is provided with 4 hydraulic jacks and 3 horizontal actuators, and can provide enough test load; multifunctional: the cross section shape of the test piece is not required, and the test can be carried out on the test piece with any cross section; horizontal bidirectional loading: the arrangement of the three actuators can provide horizontal loads in two directions, and the stress performance of the component under the action of bidirectional loading can be studied.
Drawings
FIG. 1 is a schematic perspective view of the use of a loading device;
FIG. 2 is a perspective view of a load beam;
FIG. 3 is a perspective view of a foundation beam;
FIG. 4 is a front view of a load beam;
FIG. 5 is a cross-sectional view of a load beam;
FIG. 6 is a front view of a foundation beam
FIG. 7 is a B-B cross-sectional view of a foundation beam
In the figure: 1-loading a beam; 2-a foundation beam; 3-a longitudinal box loading beam; 4-a transverse box loading beam; 5-a longitudinal horizontal load transfer member; 6-longitudinal box foundation beams; 7-a transverse I-shaped foundation beam; 8-an actuator; 9-a hydraulic jack; 10-a pull rod; 11-hinge seat
Detailed Description
The following describes the embodiments of the present invention further with reference to the accompanying drawings.
As shown in fig. 1 to 7, a large-tonnage integrated multifunctional space loading device comprises a loading beam 1, a foundation beam 2, an actuator 8, a hydraulic jack 9, a pull rod 10 and a hinge seat 11.
The loading beam 1 adopts a cross structure and consists of a longitudinal box loading beam 3 and a transverse box loading beam 4; the longitudinal box loading beam 3 and the transverse box loading beam 4 are arranged at the cross overlapped part, and a longitudinal horizontal load force transmission part 5 is arranged on the upper surface;
the actuators 8 are three in number and are used for providing horizontal acting force, wherein two actuators 8 are symmetrically arranged on two sides of the transverse box-shaped loading beam 4 of the loading beam 1, and the actuating heads are connected with the longitudinal box-shaped loading beam 3 through bolts and are used for providing transverse horizontal acting force; the actuating head of the other actuator 8 is bolted to the longitudinal horizontal load transfer member 5 for providing a longitudinal horizontal force.
The four hydraulic jacks 9 are arranged above the transverse box-shaped loading beam 4. The pull rods 10 are in one-to-one correspondence with the hydraulic jacks 9 and are used for connecting the loading beam 1 and the foundation beam 2, and tension is applied to the pull rods 10 through the hydraulic jacks 9, so that downward acting counter force is applied to the loading beam 1 to provide vertical acting force. The hinging seat 11 is arranged between the foundation beam 2 and the pull rod 10, so that the pull rod 10 has a certain rotation capacity when the horizontal load is applied to the loading device, and the bidirectional horizontal displacement of the test piece is adapted.
The inside of the longitudinal box loading beam 3 and the transverse box loading beam 4 are respectively provided with a stiffening plate, the stiffening plates are arranged at loading positions of the actuators 8 and the hydraulic jacks 9, support is provided for the flanges and the web plates, and local bending deformation of the flanges and the web plates is reduced. The stiffening plates inside the loading beam 1 need to be welded with the four walls of the loading beam 1, wherein the outermost sides of the longitudinal box loading beam 3 and the transverse box loading beam 4 are both the stiffening plates shaped like a Chinese character 'hui', the edges of the stiffening plates, which are away from the proximal end surfaces of the box loading beam 3 and the transverse box loading beam 4, are not more than 1t, and t is the thickness of the stiffening plates shaped like the hui, as shown in figures 2 and 5.
Furthermore, a horizontal stiffening plate is welded to the inside of the horizontal load transfer member 5, and is also welded to the surrounding walls thereof, as shown in fig. 2. The foundation beam 2 also adopts a cross structure, wherein the longitudinal beam is box-shaped, and the transverse beam is I-shaped. The space arrangement requirement of the stiffening plates of the box-shaped beam part in the foundation beam 2 is consistent with that of the loading beam 1, and the outermost stiffening plates are also in a shape of Chinese character 'Hui', as shown in figures 3 and 7; the i-beam portion of the foundation beam 2 has its outermost stiffener plates no more than 1t from the proximal edge and no more than 10t from each stiffener plate, as shown in fig. 3 and 7. The center distance of the holes for the pull rod 10 to pass through on the loading beam 1 and the foundation beam 2 is not lower than twice the diameter of the holes; the bolt hole on the loading beam 1 is determined according to the position of the actuating head, and the distance between the center of the circle and the edge of the near side is not lower than 3 times of the diameter of the bolt hole; the center distance of the center of the bolt hole on the foundation beam 2 is not less than 2 times of the diameter of the bolt hole;
in addition, dense small bolt holes are reserved at the bottom of the loading beam 1 and the top of the foundation beam 2, and the test piece is fixed between the loading beam 1 and the foundation beam 2 by matching bolts with corresponding specifications, wherein the distance between the small bolt holes is not lower than 3 times of the diameter of the small bolt holes, as shown in fig. 5 and 7.
The installation and use method of the large-tonnage integrated multifunctional space loading device comprises the following steps:
firstly, processing and welding a loading beam 1 and a foundation beam 2 according to a design drawing in a factory, then anchoring the foundation beam 2 to the ground by matching with a screw rod, connecting a test piece bottom end plate matching bolt with the foundation beam 2, connecting the loading beam 1 with a test piece top end plate matching bolt, fixing a spherical hinge on the foundation beam 2, locking a pull rod 1 in the spherical hinge, fixing a hydraulic jack 9 by matching with a pull rod 10, and connecting three actuators 8 by matching with bolts with the loading beam 1, wherein the tail part of the loading beam is connected with a counterforce wall by matching with the bolts. The construction stage of the device is completed.
Before test loading, strain gauges and displacement meters are arranged at corresponding positions of the test piece. After the test is ready, vertical load and horizontal load are applied at a certain speed through the vertical hydraulic jack 9 and the horizontal actuator 8, and measurement data such as force, displacement, strain and the like are synchronously acquired.
The above is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and those skilled in the art can easily think of the variations or technical scope of the present invention disclosed. Alternatives are intended to be within the scope of the invention. The scope of the invention should, therefore, be determined with reference to the appended claims.
Claims (6)
1. A large tonnage integrated multifunctional space loading device, characterized by comprising: the device comprises a loading beam, a foundation beam, an actuator, a hydraulic jack, a pull rod and a hinging seat; the loading beams and the foundation beams are arranged in parallel at intervals along the vertical direction;
the loading beam is of a cross structure and consists of a longitudinal box loading beam and a transverse box loading beam; the upper surface of the longitudinal box loading beam is provided with a longitudinal horizontal load force transmission component;
the actuators are three in number and are used for providing horizontal acting force, wherein the two actuators are symmetrically arranged on two sides of the transverse box-shaped loading beam, and the actuating head is connected with the longitudinal box-shaped loading beam through bolts and is used for providing transverse horizontal acting force; the actuating head of the other actuator is connected with the longitudinal horizontal load force transmission component through a bolt and is used for providing longitudinal horizontal acting force;
the hydraulic jacks are arranged above the transverse box-type loading beams, and the pull rods are in one-to-one correspondence with the hydraulic jacks and are used for connecting the loading beams and the foundation beams; pulling force is applied to the pull rod through the hydraulic jack, so that downward acting counter force is applied to the loading beam to provide vertical acting force; the hinge seat is arranged between the foundation beam and the pull rod, so that the pull rod has a certain rotation capacity when the loading device applies horizontal load, and the bidirectional horizontal displacement of the test piece is adapted;
stiffening plates are arranged in the longitudinal box loading beam and the transverse box loading beam, and are welded and fixed with the four inner walls of the longitudinal box loading beam and the transverse box loading beam;
the stiffening plates at the two ends of the longitudinal box loading beam and the transverse box loading beam along the length are respectively in a shape like a Chinese character 'Hui'; the distance between the back-shaped stiffening plate and the end faces of the longitudinal box loading beam and the transverse box loading beam along the length is not greater than the thickness of the back-shaped stiffening plate.
2. A large tonnage integrated multifunction space loading equipment according to claim 1, characterized in that: the foundation beam is also of a cross structure, wherein the longitudinal beam is of a box shape, and the transverse beam is of an I shape; and stiffening plates are arranged in the longitudinal beam and the transverse carrier beam.
3. A large tonnage integrated multifunction space loading equipment according to claim 2, characterized in that: the stiffening plates in the longitudinal beam are arranged at intervals consistent with the loading beam, and the stiffening plates at the two ends along the length direction are shaped like Chinese character 'Hui'; the distance between the stiffening plates and the end faces at the two ends of the transverse beam along the length direction is not more than the thickness of the stiffening plates, and the distance between the stiffening plates is not more than 10 times the thickness of the stiffening plates.
4. A large tonnage integrated multifunction space loading equipment according to claim 1, characterized in that: the loading beam and the foundation beam are respectively provided with a hole for the pull rod to pass through, and the circle center distance between the loading beam and the foundation beam is not less than twice the diameter of the hole.
5. The large tonnage integrated multifunctional space loading equipment according to claim 4, wherein: the bolt hole on the loading beam is determined according to the position of the actuating head, and the distance between the center of the circle and the edge of the near side is not less than three times of the diameter of the bolt hole;
the center distance of the center of the bolt hole on the foundation beam is not less than twice the diameter of the bolt hole.
6. The large tonnage integrated multifunctional space loading equipment according to claim 5, characterized in that: and dense small bolt holes are reserved at the bottom of the loading beam and the top of the foundation beam, and bolts of corresponding specifications are matched to fix the test piece between the loading beam and the foundation beam, wherein the distance between the small bolt holes is not less than three times of the diameter of the small bolt holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811339669.8A CN109374422B (en) | 2018-11-12 | 2018-11-12 | Large-tonnage integrated multifunctional space loading device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811339669.8A CN109374422B (en) | 2018-11-12 | 2018-11-12 | Large-tonnage integrated multifunctional space loading device |
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| Publication Number | Publication Date |
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| CN109374422A CN109374422A (en) | 2019-02-22 |
| CN109374422B true CN109374422B (en) | 2023-09-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811339669.8A Active CN109374422B (en) | 2018-11-12 | 2018-11-12 | Large-tonnage integrated multifunctional space loading device |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB644381A (en) * | 1947-05-16 | 1950-10-11 | Charles William Glover | Beam testing machines |
| CN101000292A (en) * | 2006-12-15 | 2007-07-18 | 清华大学 | Large 3D multifunction soil tester |
| CN201983988U (en) * | 2011-02-16 | 2011-09-21 | 山东大学 | Large-scale combined static and dynamic multifunctional geotechnical engineering model test device |
| CN102735534A (en) * | 2012-07-07 | 2012-10-17 | 长春机械科学研究院有限公司 | Three-dimensional alternating load fatigue test device for rubber and plastic joint assembly |
| CN104792561A (en) * | 2015-04-23 | 2015-07-22 | 中南大学 | Low-frequency cyclic loading test device |
| CN107525726A (en) * | 2017-10-01 | 2017-12-29 | 华北理工大学 | Frame structure beam-column-slab connection Oblique loading device |
| CN207816592U (en) * | 2018-03-05 | 2018-09-04 | 天津城建大学 | A kind of vertical loading system of roller type low friction with following function |
| CN209215114U (en) * | 2018-11-12 | 2019-08-06 | 华侨大学 | Large-tonnage integrated multifunction space loading device |
-
2018
- 2018-11-12 CN CN201811339669.8A patent/CN109374422B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB644381A (en) * | 1947-05-16 | 1950-10-11 | Charles William Glover | Beam testing machines |
| CN101000292A (en) * | 2006-12-15 | 2007-07-18 | 清华大学 | Large 3D multifunction soil tester |
| CN201983988U (en) * | 2011-02-16 | 2011-09-21 | 山东大学 | Large-scale combined static and dynamic multifunctional geotechnical engineering model test device |
| CN102735534A (en) * | 2012-07-07 | 2012-10-17 | 长春机械科学研究院有限公司 | Three-dimensional alternating load fatigue test device for rubber and plastic joint assembly |
| CN104792561A (en) * | 2015-04-23 | 2015-07-22 | 中南大学 | Low-frequency cyclic loading test device |
| CN107525726A (en) * | 2017-10-01 | 2017-12-29 | 华北理工大学 | Frame structure beam-column-slab connection Oblique loading device |
| CN207816592U (en) * | 2018-03-05 | 2018-09-04 | 天津城建大学 | A kind of vertical loading system of roller type low friction with following function |
| CN209215114U (en) * | 2018-11-12 | 2019-08-06 | 华侨大学 | Large-tonnage integrated multifunction space loading device |
Non-Patent Citations (2)
| Title |
|---|
| 双向压弯作用下矩形空心桥墩抗震性能试验研究;赵彦 等;工程抗震与加固改造;第35卷(第05期);第11-19页 * |
| 钢筋混凝土核心筒抗震性能试验研究;史庆轩 等;建筑结构学报;第32卷(第10期);第119-129页 * |
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