CN211553572U - Testing device for detecting bearing capacity of reinforced concrete precast beam - Google Patents
Testing device for detecting bearing capacity of reinforced concrete precast beam Download PDFInfo
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- CN211553572U CN211553572U CN201921610314.8U CN201921610314U CN211553572U CN 211553572 U CN211553572 U CN 211553572U CN 201921610314 U CN201921610314 U CN 201921610314U CN 211553572 U CN211553572 U CN 211553572U
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- concrete precast
- precast beam
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- bearing capacity
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Abstract
The utility model discloses a testing device for detecting the bearing capacity of a reinforced concrete precast beam, which comprises an inverted frame, a placing mechanism, a pressing mechanism and a deformation measuring mechanism; the reverse stand frame comprises a base, a cross beam and a stand column; the placing mechanism comprises a support arranged on the base, and the support is used for supporting the reinforced concrete precast beam; the lower pressing mechanism comprises a jack and a distribution beam, the distribution beam is arranged on the reinforced concrete precast beam, the jack is arranged between the distribution beam and the cross beam, two ends of the jack are respectively contacted with the distribution beam and the cross beam simultaneously, and the distribution beam is parallel to the cross beam; the deformation measuring mechanism comprises a reference beam and a dial indicator, the reference beam is arranged below the reinforced concrete precast beam in parallel, the dial indicator is vertically arranged between the reference beam and the reinforced concrete precast beam, and two ends of the dial indicator are respectively contacted with the reference beam and the reinforced concrete precast beam. The technical problems that a detection platform is difficult to build on site, potential safety hazards are avoided, detection result errors are reduced and the like are solved.
Description
Technical Field
The utility model relates to a reinforced concrete precast beam detects technical field, especially relates to a testing arrangement for detecting reinforced concrete precast beam's bearing capacity.
Background
With the continuous development of building technology in China, the market scale of the fabricated building is rapidly increased. There is a need to control the quality of fabricated structures, monitor and test the performance of various prefabricated components. The prefabricated reinforced concrete precast beam is a common component, and the performance of the prefabricated reinforced concrete precast beam is detected by a bearing capacity test. The deflection, the crack and the ultimate bearing capacity of the prefabricated reinforced concrete precast beam are tested according to the regulation of GB50204 'technical specification for acceptance of concrete structures'.
The current methods of testing prefabricated parts require a pile-up test at the construction site. The mode has long working time and large workload, and the precision of the instrument is easily influenced in the process of carrying the balance weight. When the test piece is damaged, the test piece is difficult to unload in time, and serious potential safety hazards are caused.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model aims to provide a reduce the time of on-the-spot heap year, avoided the testing arrangement who is used for detecting the bearing capacity of reinforced concrete precast beam of construction potential safety hazard.
The purpose of the utility model is realized by adopting the following technical scheme:
the testing device for detecting the bearing capacity of the reinforced concrete precast beam comprises a reverse vertical frame, a placing mechanism, a pressing mechanism and a deformation measuring mechanism; the inverted frame comprises a base, a cross beam and an upright column, the upright column is vertically connected with the base, the cross beam is vertically connected with the upright column, and the cross beam is arranged above the base and is parallel to the base; the placing mechanism comprises a support arranged on the base, and the support is used for supporting the reinforced concrete precast beam; the pressing mechanism comprises a jack and a distribution beam, the distribution beam is arranged on the reinforced concrete precast beam, the jack is arranged between the distribution beam and the cross beam, two ends of the jack are respectively contacted with the distribution beam and the cross beam simultaneously, and the distribution beam is parallel to the cross beam; the deformation measuring mechanism comprises a reference beam and a dial indicator, the reference beam is arranged below the reinforced concrete precast beam in parallel, the dial indicator is vertically arranged between the reference beam and the reinforced concrete precast beam, and two ends of the dial indicator are respectively contacted with the reference beam and the reinforced concrete precast beam.
Furthermore, the stand includes four stands that the structure is the same, and four stands symmetry respectively set up around the base, and each stand is connected with the base through first connecting rod, just the stand with the base forms U type groove structure.
Further, the cross beam is connected with the upright column through a second connecting rod.
Further, the first connecting rod and the second connecting rod are both screws.
Further, the base is formed by welding I-shaped steel and steel plates.
Further, the support includes first support and second support, the top of first support and second support all is equipped with first backing plate.
Further, the bottom of the distribution beam is arranged on the reinforced concrete precast beam through a second base plate.
Further, a roller is arranged between the bottom of the distribution beam and the second base plate.
Further, the dial indicator is connected with data acquisition equipment.
Further, the jack controls the loading and unloading of the jack through a servo system.
Compared with the prior art, the beneficial effects of the utility model reside in that:
the placing mechanism, the pressing mechanism and the deformation measuring mechanism are installed on the reaction frame in advance, so that the time for field stacking is reduced when testing is needed, and the thrust on the jack can be dispersed on the reinforced concrete precast beam by the distributing beam, so that the test effect is optimized, and the technical problems of difficulty in field building of the detection platform, potential safety hazards avoidance, detection result error reduction and the like are solved.
Drawings
Fig. 1 is the utility model provides a pair of a testing arrangement for detecting bearing capacity of reinforced concrete precast beam's schematic diagram.
In the figure: 1. a base; 2. a column; 3. a cross beam; 4. a first connecting rod; 5. a second connecting rod; 6. a jack; 7. a distribution beam; 8. a roller; 9. a second backing plate; 10. prefabricating a reinforced concrete beam; 11. a first backing plate; 12. a first support; 13. a second support; 14. a reference beam; 15. and (4) a dial indicator.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that the embodiments or technical features described below can be arbitrarily combined to form a new embodiment without conflict.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "horizontal", "vertical", "top", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "one," "another," and the like are used to distinguish similar elements, and these terms and other similar terms are not intended to limit the scope of the present invention.
In the description of the present invention, it should be noted that unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; either directly or indirectly through intervening media, or through both elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art. Corresponding reference numerals are used throughout the figures to indicate corresponding or corresponding elements (e.g., elements identified as "1 XX" and "2 XX" are structurally identical and functionally similar).
As shown in fig. 1, in order to provide a testing apparatus for detecting a bearing capacity of a reinforced concrete precast beam 10 of the present invention, the testing apparatus includes an inverted frame, a placing mechanism, a pressing mechanism and a deformation measuring mechanism; the inverted frame comprises a base 1, a cross beam 3 and an upright post 2, wherein the upright post 2 is vertically connected with the base 1, the cross beam 3 is vertically connected with the upright post 2, and the cross beam 3 is arranged above the base 1 and is parallel to the base 1; the placing mechanism comprises a support arranged on the base 1, and the support is used for supporting the reinforced concrete precast beam 10; the pressing mechanism comprises a jack 6 and a distribution beam 7, the distribution beam 7 is arranged on the reinforced concrete precast beam 10, the jack 6 is arranged between the distribution beam 7 and the cross beam 3, two ends of the jack 6 are respectively contacted with the distribution beam 7 and the cross beam 3 simultaneously, and the distribution beam 7 is parallel to the cross beam 3; the deformation measuring mechanism comprises a reference beam 14 and a dial indicator 15, the reference beam 14 is arranged below the reinforced concrete precast beam 10 in parallel, the dial indicator 15 is vertically arranged between the reference beam 14 and the reinforced concrete precast beam 10, and two ends of the dial indicator 15 are respectively in contact with the reference beam 14 and the reinforced concrete precast beam 10.
On the basis of the structure, the placing mechanism, the pressing mechanism and the deformation measuring mechanism are installed on the reaction frame in advance, so that the time for field stacking is shortened when testing is needed, and the thrust on the jack 6 can be dispersed on the reinforced concrete precast beam 10 by the distributing beam 7, so that the test effect is optimized, the technical problems that the detection platform is built on the field, potential safety hazards are avoided, the detection result error is reduced and the like are solved.
As a preferred embodiment, the upright columns 2 include four upright columns 2 having the same structure, the four upright columns 2 are respectively and symmetrically arranged around the base 1, each upright column 2 is connected with the base 1 through a first connecting rod 4, and the upright columns 2 and the base 1 form a U-shaped groove structure. The U-shaped groove structure is convenient for enabling the reverse stand frame to move horizontally in the detection process.
In a preferred embodiment, the cross beam 3 is connected to the upright 2 by means of a second connecting rod 5. Crossbeam 3 sets up in base 1 top, is on a parallel with base 1, wears between controlling stand 2, fixes crossbeam 3 and stand 2 with second connecting rod 5. The reinforced concrete precast beam 10 is placed on the support, the cross beam 3 is arranged above the reinforced concrete precast beam 10, when acting force is applied between the reinforced concrete precast beam 10 and the cross beam 3, the acting force on the cross beam 3 is transmitted to the upright post 2 through the second connecting rod 5, and then is transmitted to the base 1, so that the acting force and the acting force on the base 1 are mutually offset, and the whole device forms a self-balancing stress system.
Specifically, the first connecting rod 4 and the second connecting rod 5 are both screws.
In a preferred embodiment, the base 1 is formed by welding an i-steel and a steel plate. This gives the base 1 sufficient rigidity to ensure that the deformation during loading is sufficiently small to avoid introducing measurement errors and to distribute the pressure transmitted by the support to the ground.
In a preferred embodiment, the support comprises a first support 12 and a second support 13, and a first pad 11 is arranged on the top of each of the first support 12 and the second support 13. The first mount 12 and the second mount 13 of the present embodiment have sufficient rigidity to meet the test requirements. The first shim plate 11 used in this example should have sufficient flatness to avoid stress concentrations.
As a preferred embodiment, the bottom of the distribution beam 7 is disposed on the reinforced concrete precast beam 10 by the second pad 9. In particular, a roller 8 is arranged between the bottom of the distribution beam 7 and the second pad 9.
In a preferred embodiment, the dial indicator 15 is connected to a data acquisition device. Of course, the dial indicator 15 can also be connected with a computer to record the deformation amount in real time conveniently.
In a preferred embodiment, the jacks 6 are loaded and unloaded by servo control. Thus, the labor intensity can be reduced.
In addition, the embodiment provides a specific mounting step of the testing device, which comprises the following steps: a base 1 is placed in a flat place, and four upright posts 2 are arranged on the base 1 to form a U-shaped groove; installing a first support 12 and a second support 13 on the base 1 according to the size of the reinforced concrete precast beam 10, and then placing the reinforced concrete precast beam 10 on the first support 12 and the second support 13; and then placing the distribution beam 7 on the reinforced concrete precast beam 10 according to the loading requirement, hoisting the cross beam 3 to connect the cross beam 3 with the upright post 2, wherein the cross beam 3 is parallel to the base 1, a jack 6 is placed between the distribution beam 7 and the cross beam 3, and the position of the jack 6 is adjusted to simultaneously contact with the distribution beam 7 and the cross beam 3.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.
Claims (10)
1. The test device for detecting the bearing capacity of the reinforced concrete precast beam is characterized by comprising a reverse stand, a placing mechanism, a pressing mechanism and a deformation measuring mechanism; the inverted frame comprises a base, a cross beam and an upright column, the upright column is vertically connected with the base, the cross beam is vertically connected with the upright column, and the cross beam is arranged above the base and is parallel to the base; the placing mechanism comprises a support arranged on the base, and the support is used for supporting the reinforced concrete precast beam; the pressing mechanism comprises a jack and a distribution beam, the distribution beam is arranged on the reinforced concrete precast beam, the jack is arranged between the distribution beam and the cross beam, two ends of the jack are respectively contacted with the distribution beam and the cross beam simultaneously, and the distribution beam is parallel to the cross beam; the deformation measuring mechanism comprises a reference beam and a dial indicator, the reference beam is arranged below the reinforced concrete precast beam in parallel, the dial indicator is vertically arranged between the reference beam and the reinforced concrete precast beam, and two ends of the dial indicator are respectively contacted with the reference beam and the reinforced concrete precast beam.
2. The test device for testing the bearing capacity of the reinforced concrete precast beam according to claim 1, wherein the columns comprise four columns with the same structure, the four columns are respectively and symmetrically arranged around the base, each column is connected with the base through a first connecting rod, and the columns and the base form a U-shaped groove structure.
3. The test device for testing bearing capacity of a reinforced concrete precast beam according to claim 2, wherein the cross beam is connected with the column by a second connection rod.
4. The test device for testing bearing capacity of a reinforced concrete precast beam according to claim 3, wherein the first and second connection rods are screw rods.
5. The test device for testing the bearing capacity of the reinforced concrete precast beam as set forth in claim 1, wherein the base is welded by i-beams and steel plates.
6. The test device for testing the bearing capacity of the reinforced concrete precast beam according to claim 1, wherein the support comprises a first support and a second support, and a first tie plate is provided on top of each of the first support and the second support.
7. The test apparatus for testing bearing capacity of a reinforced concrete precast beam according to claim 1, wherein the bottom of the distribution beam is disposed on the reinforced concrete precast beam by a second shim plate.
8. The test apparatus for testing a load bearing capacity of a reinforced concrete precast beam according to claim 7, wherein a roller is provided between the bottom of the distribution beam and the second pad plate.
9. The test device for testing the bearing capacity of the reinforced concrete precast beam according to claim 1, wherein the dial indicator is connected with a data acquisition apparatus.
10. The test device for testing the bearing capacity of the reinforced concrete precast beam as set forth in claim 1, wherein the jack is controlled to be loaded and unloaded by a servo system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921610314.8U CN211553572U (en) | 2019-09-25 | 2019-09-25 | Testing device for detecting bearing capacity of reinforced concrete precast beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921610314.8U CN211553572U (en) | 2019-09-25 | 2019-09-25 | Testing device for detecting bearing capacity of reinforced concrete precast beam |
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| CN211553572U true CN211553572U (en) | 2020-09-22 |
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| CN201921610314.8U Active CN211553572U (en) | 2019-09-25 | 2019-09-25 | Testing device for detecting bearing capacity of reinforced concrete precast beam |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113432806A (en) * | 2021-06-23 | 2021-09-24 | 广州地铁设计研究院股份有限公司 | Pressure waterproof test system for assembly type connector |
| CN117491143A (en) * | 2023-09-18 | 2024-02-02 | 浙江意诚检测有限公司 | Device for detecting structural performance of concrete prefabricated part |
-
2019
- 2019-09-25 CN CN201921610314.8U patent/CN211553572U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113432806A (en) * | 2021-06-23 | 2021-09-24 | 广州地铁设计研究院股份有限公司 | Pressure waterproof test system for assembly type connector |
| CN113432806B (en) * | 2021-06-23 | 2024-05-07 | 广州地铁设计研究院股份有限公司 | Pressure waterproof test system for assembled joint |
| CN117491143A (en) * | 2023-09-18 | 2024-02-02 | 浙江意诚检测有限公司 | Device for detecting structural performance of concrete prefabricated part |
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