CN209858329U - Loading device for bending shear test of concrete filled steel tube member - Google Patents
Loading device for bending shear test of concrete filled steel tube member Download PDFInfo
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- CN209858329U CN209858329U CN201920485708.9U CN201920485708U CN209858329U CN 209858329 U CN209858329 U CN 209858329U CN 201920485708 U CN201920485708 U CN 201920485708U CN 209858329 U CN209858329 U CN 209858329U
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Abstract
The utility model relates to a loading device for concrete filled steel tube component bending shear test, including testing platform, axial loading element and horizontal loading element, still include axial clamping device and horizontal clamping device, axial clamping device includes two holders, has at least a holder to promote by axial loading element and axial displacement to with another holder centre gripping at the axial both ends of concrete filled steel tube component. The utility model can axially and transversely fix the steel pipe concrete member, ensure the steel pipe concrete member to be stressed stably in the loading process, and prevent the displacement from affecting the detection result; the lateral supporting device can provide lateral support for the transverse clamping device in a loading state, free vertical movement of a test piece in a plane is guaranteed, lateral displacement of the test piece is limited, safety of the detection device is improved, the two clamping pieces of the axial clamping device can move axially, and the lateral supporting device is suitable for detection of concrete-filled steel tube members with different lengths.
Description
Technical Field
The utility model relates to a building material check out test set technical field, in particular to be used for the curved loading device who cuts the experiment of steel pipe concrete component.
Background
The steel pipe concrete is an excellent composite structure material, and the compression resistance of the material is greatly improved by utilizing the constraint effect of an external steel pipe on core concrete. In view of the strong compression resistance of the concrete filled steel tube, the concrete filled steel tube structure is widely applied in the traffic industry, for example, the concrete filled steel tube structure is used as a concrete filled steel tube temporary support, a concrete filled steel tube pier, a concrete filled steel tube arch bridge, a concrete filled steel tube truss bridge and the like, the concrete filled steel tube has different compression resistance after being welded, and the compression resistance has a direct relation with the stability of the concrete filled steel tube.
For example: the utility model discloses a chinese utility model patent with application number 201820535358.8 discloses a compressive strength detection device for steel tube concrete, including engine body shell, hydraulic jack and steel tube concrete, be equipped with the installation cavity in the engine body shell, one side of engine body shell is seted up the socket that communicates with the installation cavity, the steel tube concrete is inserted and is located in the socket, the vertical symmetry is equipped with the threaded rod in the installation cavity, two one end of threaded rod all is connected with the installation cavity inner wall rotation, one side of engine body shell is vertical symmetry seted up the installing port that communicates with the installation cavity, two the other end of threaded rod passes two installing ports respectively and extends to outside the engine body shell, one side of engine body shell near the installing port vertical symmetry fixed mounting has servo motor, its shortcoming lies in that this detection device adopts two slide bars to fix the steel tube concrete, and the slide bar easily takes place the bending, and the axial fixation of the concrete filled steel tube is lacked, so that the concrete filled steel tube is easy to displace during detection, and the detection result is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a loading device for concrete filled steel tube component bending shear test solves the fixed unstable problem of concrete filled steel tube component in the testing process.
The above object of the present invention can be achieved by the following technical solutions: the loading device for the bending shear test of the concrete filled steel tube member comprises a detection platform, an axial loading element, a transverse loading element, an axial clamping device and a transverse clamping device, wherein the axial clamping device comprises two clamping pieces, at least one clamping piece is pushed by the axial loading element to move axially, and the clamping piece and the other clamping piece are clamped at two axial ends of the concrete filled steel tube member; the transverse clamping device is connected to the transverse loading element and is pushed by the transverse loading element to move transversely, and the transverse clamping device is provided with a clamping opening used for clamping the concrete filled steel tube member in the transverse direction.
Preferably, the clamping members are movably mounted on the detection platform, and at least one end of each clamping member is provided with an axial position adjusting device.
Preferably, the axial position adjusting device comprises an adjusting screw rod, the adjusting screw rod is screwed on the detection platform, and the axial position of the clamping piece is adjusted by rotating the adjusting screw rod.
Preferably, the detection platform is provided with two reaction piers, a pull rod is connected between the two reaction piers, and the axial loading element and the axial position adjusting device are respectively installed on the two corresponding reaction piers.
Preferably, the axial clamping device further comprises a fixed seat, the fixed seat is fixedly connected to the detection platform, the fixed seat is provided with a sleeve hole, and the clamping piece is slidably mounted in the sleeve hole.
Preferably, the transverse clamping device comprises a first clamp and a second clamp, the first clamp is fixedly connected to the transverse loading element, the second clamp is detachably mounted on the first clamp, clamping grooves are formed in the first clamp and the second clamp, and the two clamping grooves are combined to form a clamping opening after the first clamp and the second clamp are combined.
Preferably, the nip is circular or rectangular.
Preferably, both ends of the second clamp are fixed to the first clamp by fasteners.
Preferably, one end of the second clamp is hinged on the first clamp, and the other end of the second clamp is fixed on the first clamp through a fastener.
Preferably, lateral supporting devices are arranged on two sides of the transverse clamping device and comprise a supporting seat and a roller, the roller is rotatably mounted on the supporting seat, and the wheel surface of the roller is used for abutting against the side edge of the transverse clamping device.
The lateral supporting device can ensure the free vertical movement of the test piece in a plane, limit the lateral displacement of the test piece and improve the safety of the detection device.
The utility model discloses following beneficial effect has:
1. the utility model respectively carries out axial fixation and transverse fixation to the concrete-filled steel tube component through the axial clamping device and the transverse clamping device, thereby ensuring the stress stability of the concrete-filled steel tube component in the loading process and preventing the displacement from influencing the detection result;
2. the lateral supporting device can provide lateral support for the transverse clamping device in a loading state, so that the test piece can freely and vertically move in a plane, the lateral displacement of the test piece is limited, and the safety of the detection device is improved;
3. two clamping pieces of the axial clamping device can move axially, and the axial clamping device is suitable for detecting concrete filled steel tube members with different lengths.
Drawings
Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention;
FIG. 2 is a cross-sectional view taken at A-A of FIG. 1;
fig. 3 is a schematic structural view of a lateral holding device according to embodiment 2 of the present invention;
fig. 4 is a schematic structural view of a lateral holding device according to embodiment 3 of the present invention;
in the figure: 1-detection platform, 2-reaction pier, 3-pull rod, 4-axial loading element, 5-fixing seat, 6-clamping piece, 7-adjusting screw rod, 8-transverse clamping device, 801-first clamp, 802-second clamp, 803-clamping opening, 9-transverse loading element, 10-supporting seat and 11-roller.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all the embodiments are protected by patent laws within the scope of the claims of the present invention.
Example 1: as shown in fig. 1 and 2, the loading device for the bending shear test of the concrete filled steel tube member comprises a detection platform 1, an axial loading element 4, a transverse loading element 9, an axial clamping device and a transverse clamping device 8. Detection platform 1 divide into two, and two detection platform 1 accessible remove and adjust distance between them, set up a counter-force mound 2 on every detection platform 1, are connected with pull rod 3 between two counter-force mounds 2, and the bolt fastening is passed through on counter-force mound 2 to the tip of pull rod 3. The axial loading element 4 is fixedly arranged on one of the reaction piers 2, the other reaction pier 2 is provided with an axial position adjusting device, the axial position adjusting device comprises an adjusting screw rod 7, the adjusting screw rod 7 is in threaded connection with the reaction piers 2, and the adjusting screw rod 7 is moved by rotating the adjusting screw rod 7.
Axial clamping device includes fixing base 5 and two holders 6, and fixing base 5 fixed mounting is on testing platform 1, and fixing base 5 is provided with the trepanning. The clamping piece 6 is a circular steel column, and the clamping piece 6 penetrates through the sleeve hole of the fixing seat 5 and moves axially relative to the fixing seat 5.
The two clamping pieces 6 are positioned at two sides of the transverse clamping device 8, wherein the clamping piece 6 at one side is pushed by the axial loading element 4 to move axially, and the clamping piece 6 at the other side is propped by the adjusting screw rod 7 and clamped at the two axial ends of the concrete filled steel tube member together. The two clamping pieces 6 and the adjusting screw rod 7 are positioned on the same axis, and when the adjusting screw rod 7 is continuously rotated, the end part of the adjusting screw rod 7 is abutted against the clamping piece 6 on the corresponding side, so that the clamping piece 6 moves axially, and the axial position of the clamping piece 6 is adjusted.
In another embodiment, both clamps 6 can be pushed separately by both axial loading elements 4.
The transverse loading element 9 is fixed above the testing platform 1, and the transverse clamping device 8 is connected to the transverse loading element 9 and is pushed by the transverse loading element 9 to move up and down (transversely relative to the steel pipe concrete member).
The axial loading element 4 adopts a hydraulic jack, and the transverse loading element 9 adopts an MTS servo actuator.
As shown in fig. 2, the lateral clamping device 8 includes a first clamp 801 and a second clamp 802, the first clamp 801 is fixedly mounted on the lateral loading member 9, and both ends of the second clamp 802 are fixed to the first clamp 801 by bolts. Clamping grooves are formed in the first clamp 801 and the second clamp 802, the two clamping grooves are combined to form a clamping opening 803 after the first clamp 801 and the second clamp 802 are combined, the clamping opening 803 is circular, and the clamping opening 803 is used for clamping a steel pipe concrete member in the transverse direction.
As shown in fig. 2, lateral supporting devices are arranged on two sides of the transverse clamping device 8, and each lateral supporting device comprises a supporting seat 10 and a roller 11, and the supporting seat 10 is fixed on the ground through an earth anchor or fixed on the detection platform 1 through a bolt. The roller 11 is rotatably mounted on the supporting base 10, and the wheel surface of the roller 11 is used for abutting against the side edge of the transverse clamping device 8. Wherein the roller 11 adopts a thrust bearing.
During detection, the concrete-filled steel tube member is fixed through the first clamp 801 and the second clamp 802, then the adjusting screw rod 7 is rotated, one of the clamping pieces 6 is moved and props against one end of the concrete-filled steel tube member, the other clamping piece 6 is moved and props against the other end of the concrete-filled steel tube member through the pushing of the hydraulic jack, so that the concrete-filled steel tube member is fixed, and finally the hydraulic jack and the MTS servo actuator are used for pressing the concrete-filled steel tube member respectively according to the detection step.
Example 2: as shown in fig. 3, the difference from embodiment 1 is that the shape of the nip 803 is rectangular.
Example 3: as shown in fig. 4, the difference from embodiments 1 and 2 is that one end of a second clamp 802 is hinged to a first clamp 801, and the other end is fixed to the first clamp 801 by a fastener.
Claims (10)
1. A loading device for steel pipe concrete component bending shear test, including testing platform (1), axial loading component (4) and horizontal loading component (9), its characterized in that: the device also comprises an axial clamping device and a transverse clamping device (8), wherein the axial clamping device comprises two clamping pieces (6), at least one clamping piece (6) is pushed by the axial loading element (4) to move axially, and the clamping piece (6) and the other clamping piece (6) are clamped at two axial ends of the concrete-filled steel tube member; the transverse clamping device (8) is connected to the transverse loading element (9) and is pushed by the transverse loading element (9) to move transversely, and the transverse clamping device (8) is provided with a clamping opening (803) used for clamping the steel tube concrete member in the transverse direction.
2. The loading device for the bending shear test of the concrete filled steel tube component according to claim 1, characterized in that: the clamping pieces (6) are movably arranged on the detection platform (1), and an axial position adjusting device is arranged at the end part of at least one clamping piece (6).
3. The loading device for the bending shear test of the concrete filled steel tube component according to claim 2, characterized in that: the axial position adjusting device comprises an adjusting screw rod (7), the adjusting screw rod (7) is in threaded connection with the detection platform (1), and the axial position of the clamping piece (6) is adjusted by rotating the adjusting screw rod (7).
4. The loading device for the bending shear test of the concrete filled steel tube component according to claim 3, wherein: detection platform (1) is provided with two reaction mounds (2), is connected with pull rod (3) between two reaction mounds (2), axial loading component (4) and axial position adjusting device are installed respectively on two reaction mounds (2) that correspond.
5. The loading device for the bending shear test of the concrete filled steel tube component according to claim 1, characterized in that: axial clamping device still includes fixing base (5), fixing base (5) rigid coupling is on detecting platform (1), fixing base (5) are provided with the trepanning, holder (6) slidable mounting is downthehole at the trepanning.
6. The loading device for the bending shear test of the concrete filled steel tube component according to claim 1, characterized in that: the transverse clamping device (8) comprises a first clamp (801) and a second clamp (802), the first clamp (801) is fixedly connected to the transverse loading element (9), the second clamp (802) is detachably mounted on the first clamp (801), clamping grooves are formed in the first clamp (801) and the second clamp (802), and the two clamping grooves are combined to form a clamping opening (803) after the first clamp (801) and the second clamp (802) are combined.
7. The loading device for the bending shear test of the concrete filled steel tube component according to claim 6, wherein: the clamping opening (803) is circular or rectangular.
8. The loading device for the bending shear test of the concrete filled steel tube component according to claim 7, wherein: the two ends of the second clamp (802) are fixed on the first clamp (801) through fasteners.
9. The loading device for the bending shear test of the concrete filled steel tube component according to claim 7, wherein: one end of the second clamp (802) is hinged on the first clamp (801), and the other end of the second clamp is fixed on the first clamp (801) through a fastener.
10. The loading device for the bending shear test of the concrete filled steel tube component according to claim 1, characterized in that: lateral supporting devices are arranged on two sides of the transverse clamping device (8) and comprise a supporting seat (10) and a roller (11), the roller (11) is rotatably installed on the supporting seat (10), and the wheel surface of the roller (11) is used for abutting against the side edge of the transverse clamping device (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920485708.9U CN209858329U (en) | 2019-04-11 | 2019-04-11 | Loading device for bending shear test of concrete filled steel tube member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920485708.9U CN209858329U (en) | 2019-04-11 | 2019-04-11 | Loading device for bending shear test of concrete filled steel tube member |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209858329U true CN209858329U (en) | 2019-12-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920485708.9U Active CN209858329U (en) | 2019-04-11 | 2019-04-11 | Loading device for bending shear test of concrete filled steel tube member |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209858329U (en) |
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2019
- 2019-04-11 CN CN201920485708.9U patent/CN209858329U/en active Active
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