CN213014706U - Structure static load test's area anchor rope sliding support structure - Google Patents
Structure static load test's area anchor rope sliding support structure Download PDFInfo
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- CN213014706U CN213014706U CN202020633132.9U CN202020633132U CN213014706U CN 213014706 U CN213014706 U CN 213014706U CN 202020633132 U CN202020633132 U CN 202020633132U CN 213014706 U CN213014706 U CN 213014706U
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Abstract
The utility model belongs to the technical field of the structure test equipment technique and specifically relates to a structure static test's area anchor rope sliding support structure, its characterized in that: the main body comprises an upper support and a base, wherein the upper support is borne on the base and forms sliding fit between the upper support and the base, and a contact surface between the upper support and the base is a sliding interface; an anchor cable is arranged on the upper support and can drive the upper support to slide on the base; and one side of the base is provided with a limiting device, and the limiting device is used for limiting the displacement stroke when the upper support and the base slide relatively. The utility model has the advantages that: through the cooperation use of sliding support and test structure, displacement control is convenient, the load is applyed the flexibility strong, be convenient for preparation, application scope is wide, the expense economy, and can with the stress structure phase-match of different cross sectional shape, different cross sectional dimensions, the suitability is good.
Description
Technical Field
The utility model belongs to the technical field of the structure test equipment technique and specifically relates to a structure static test's area anchor rope sliding support structure.
Background
In the field of civil construction, when a novel structure is applied, particularly a more important engineering project is involved, the design calculation can not be carried out only by the current standard, and the result obtained by adopting simulation means such as finite element software and the like can not be convinced sufficiently. Therefore, the verification test is often a key link for discussing whether a new design is feasible or not. In structural engineering, in order to enable a test structure to simulate the stress state of an actual structure more truly and reflect the mechanical property of a prototype structure better, a relatively direct verification means is to implement a large-scale test or a full-scale structure test. Changing the geometric dimensions to increase the scale is only one way to improve the authenticity of the results, and it is the primary objective to ensure that the stress state in the test structure is consistent with that in the prototype structure.
Due to the limitations of technical means and the difficulties in engineering practice, it is often difficult to ensure the complete correspondence between the stress of the test structure and the stress of the prototype structure in the structural test, and especially when the engineering volume is large and the requirement for the load-bearing capacity is high, it is very difficult to achieve the complete matching between the internal force states of the test structure and the prototype structure in consideration of the influence of the loading method and the loading value range. For a stressed structure, a design working condition that a node generates displacement sometimes exists, and matching is more difficult to achieve under the condition. In order to achieve the above object, a sliding support capable of controlling displacement and internal force is introduced from a support part of the test structure, so as to adjust the internal force and node displacement of the test structure and achieve high matching with the prototype structure.
Disclosure of Invention
The utility model aims at providing a structure static load test's area anchor rope sliding support structure according to above-mentioned prior art not enough, uses through the cooperation of sliding support and test structure to realize structure static load test.
The utility model discloses the purpose is realized accomplishing by following technical scheme:
the utility model provides a take anchor rope sliding support structure of structure static test which characterized in that: the main body comprises an upper support and a base, wherein the upper support is borne on the base and forms sliding fit between the upper support and the base, and a contact surface between the upper support and the base is a sliding interface; an anchor cable is arranged on the upper support and can drive the upper support to slide on the base; and one side of the base is provided with a limiting device, and the limiting device is used for limiting the displacement stroke when the upper support and the base slide relatively.
And embedded pressure-bearing steel plates are respectively embedded into the lower surface of the upper support and the upper surface of the base.
At least one polytetrafluoroethylene plate is arranged between the embedded pressure-bearing steel plates.
The lower surface of the upper support and the upper surface of the base are horizontal planes.
The limiting device comprises a limiting plate and a bottom support in pair, the bottom support is installed on the side face of the base and close to the sliding interface, and the limiting plate is fixed on the bottom support and corresponds to the position of the sliding interface.
And the limiting devices are uniformly arranged on the base at intervals.
An anchor cable hole is reserved in the upper support, and the anchor cable penetrates through the anchor cable hole, is connected with the oil pressure lifting jack and is matched with the oil pressure work station for loading.
The anchor cable is composed of a plurality of steel strands.
The utility model has the advantages that: through the cooperation use of sliding support and test structure, displacement control is convenient, the load is applyed the flexibility strong, be convenient for preparation, application scope is wide, the expense economy, and can with the stress structure phase-match of different cross sectional shape, different cross sectional dimensions, the suitability is good. In addition, the sliding support structure can play a large role in a structural test of a large scale, and the independent application or synchronous application of load and displacement with large magnitude is realized.
Drawings
Fig. 1 is a front view of the present invention;
fig. 2 is a top view of the present invention;
fig. 3 is a side view of the present invention;
fig. 4 is a schematic view of the sliding interface structure of the sliding support according to the present invention.
Detailed Description
The features of the present invention and other related features are described in further detail below by way of example in conjunction with the accompanying drawings to facilitate understanding by those skilled in the art:
as shown in fig. 1-4, the labels 1-8 in the figures are respectively expressed as: the anchor cable fixing device comprises an upper support 1, a base 2, an anchor cable 3, a pressure-bearing steel plate 4, a polytetrafluoroethylene plate 5, a limiting plate 6, a bottom support 7 and an anchor cable hole 8.
Example (b): as shown in fig. 1 to 3, the sliding support structure with anchor cables for the structural static load test in the present embodiment includes an upper support 1, a base 2, a pair of anchor cables 3, two pre-embedded pressure-bearing steel plates 4, a teflon plate 5, six limiting plates 6, and six bottom supports 7.
The upper support 1 and the base 2 are reinforced concrete structures with higher strength formed by cast-in-place, the grade of the adopted stressed main reinforcement is not lower than HRB400 grade, and the grade of the concrete is not lower than C50 grade, so that the strength and the rigidity of the support structure are ensured. The construction sequence can be that the base 2 is poured firstly, then the base 2 is used as a bottom die, and the upper support 1 is poured. As shown in fig. 1-3, the base 2 is matched with the upper support 1, the upper support 1 can be supported above the base 2 and contact with the base 2 to form a sliding fit, and the contact surface between the two is used as a sliding interface.
As shown in fig. 4, the lower surface of the upper support 1 and the upper surface of the base 2 are horizontal, at the beginning of pouring the sliding support structure, a pressure-bearing steel plate 4 for transferring the internal force of the structure is pre-embedded at the positions of the lower surface of the upper support 1 and the upper surface of the base 2 respectively, the smoothness of the sliding interface and the reduction of the frictional resistance are ensured, the steel plate can be made of Q235b steel, the thickness of the steel plate can be 20 mm, meanwhile, a polytetrafluoroethylene plate 5 which can be 10 mm thick is arranged between the two pressure-bearing steel plates 4, the frictional resistance between the upper surface and the lower surface of the sliding interface is reduced, the adverse effect of the frictional resistance on the horizontal thrust value of the support is reduced, and the difference between the actual test internal force and the design. In addition, the displacement control can be more convenient and flexible.
As shown in fig. 1, a pair of reserved anchor cable holes 8 with a diameter of 150 mm are formed in an upper support 1, the upper support is made of a PVC casing, the PVC casing is fixed at a designed position in a binding mode and the like before the upper support 1 is poured, and a hole is formed after the upper support is poured in situ. The two anchor cable holes 8 are at the same height, are perpendicular to the limiting plate 6 in the horizontal plane, and are positioned symmetrically with respect to the center point in the width direction of the support.
In the specific implementation: a single anchor cable in the anchor cables 3 consists of a plurality of steel stranded wires, the length of the single stranded wire is 29 m, the total length is 1450 m, and the specification can be 15-7 phi 5; two anchor cables respectively penetrate through the pair of reserved anchor cable holes 8 and are connected to the jacks to work in cooperation with the loading system, and each jack is provided with 25 steel stranded wires. The anchor cable 3 can drive the upper support 1 to generate relative sliding displacement on the base 2.
As shown in figures 1-3, the bottom support 7 is arranged on the side surface of the base 2 near the sliding interface, the limiting plate 6 can be fixed on the bottom support 7 by welding, the material of the bottom support and the limiting plate can be ribbed steel plate with grade Q235b, and the bottom support and the limiting plate are connected together to form a limiting device to limit the displacement of the support together for ensuring the safety of the test. The distance of the limit plate 6 from the side surface of the upper support 1, which is the limit value of the sliding displacement stroke, i.e., the limit value of the relative sliding displacement between the upper support 1 and the base 2, may be 30 mm.
When the support in the embodiment is used, the upper support 1 is firstly connected with a test structure, and then the upper support 1 is driven to displace on the base 2 by the anchor cable 3 connected with the loading system and apply a horizontal thrust value to the test structure, so as to carry out a static load test on the test structure.
Although the conception and the embodiments of the present invention have been described in detail with reference to the drawings, those skilled in the art will recognize that various changes and modifications can be made therein without departing from the scope of the appended claims, and therefore, the description thereof is not repeated herein.
Claims (8)
1. The utility model provides a take anchor rope sliding support structure of structure static test which characterized in that: the main body comprises an upper support and a base, wherein the upper support is borne on the base and forms sliding fit between the upper support and the base, and a contact surface between the upper support and the base is a sliding interface; an anchor cable is arranged on the upper support and can drive the upper support to slide on the base; and one side of the base is provided with a limiting device, and the limiting device is used for limiting the displacement stroke when the upper support and the base slide relatively.
2. The structure of claim 1, wherein the structure comprises an anchor cable sliding support structure for static load test, and the anchor cable sliding support structure comprises: and embedded pressure-bearing steel plates are respectively embedded into the lower surface of the upper support and the upper surface of the base.
3. The structure of the sliding support with the anchor cable for the static load test of the structure as claimed in claim 2, wherein: at least one polytetrafluoroethylene plate is arranged between the embedded pressure-bearing steel plates.
4. The structure of the sliding support with the anchor cable for the static load test of the structure as claimed in claim 2, wherein: the lower surface of the upper support and the upper surface of the base are horizontal planes.
5. The structure of claim 1, wherein the structure comprises an anchor cable sliding support structure for static load test, and the anchor cable sliding support structure comprises: the limiting device comprises a limiting plate and a bottom support in pair, the bottom support is installed on the side face of the base and close to the sliding interface, and the limiting plate is fixed on the bottom support and corresponds to the position of the sliding interface.
6. The structure of claim 5, wherein the structure comprises an anchor cable sliding support structure for static load test, and the structure comprises: and the limiting devices are uniformly arranged on the base at intervals.
7. The structure of claim 1, wherein the structure comprises an anchor cable sliding support structure for static load test, and the anchor cable sliding support structure comprises: an anchor cable hole is reserved in the upper support, and the anchor cable penetrates through the anchor cable hole, is connected with the oil pressure lifting jack and is matched with the oil pressure work station for loading.
8. The structure of claim 1 or 7, wherein: the anchor cable is composed of a plurality of steel strands.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020633132.9U CN213014706U (en) | 2020-04-24 | 2020-04-24 | Structure static load test's area anchor rope sliding support structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020633132.9U CN213014706U (en) | 2020-04-24 | 2020-04-24 | Structure static load test's area anchor rope sliding support structure |
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| Publication Number | Publication Date |
|---|---|
| CN213014706U true CN213014706U (en) | 2021-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020633132.9U Active CN213014706U (en) | 2020-04-24 | 2020-04-24 | Structure static load test's area anchor rope sliding support structure |
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|---|---|
| CN (1) | CN213014706U (en) |
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- 2020-04-24 CN CN202020633132.9U patent/CN213014706U/en active Active
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