CN202956308U - Fixing device for load test of prestressed concrete beam - Google Patents
Fixing device for load test of prestressed concrete beam Download PDFInfo
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- CN202956308U CN202956308U CN 201220645780 CN201220645780U CN202956308U CN 202956308 U CN202956308 U CN 202956308U CN 201220645780 CN201220645780 CN 201220645780 CN 201220645780 U CN201220645780 U CN 201220645780U CN 202956308 U CN202956308 U CN 202956308U
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- force bearing
- plate
- bearing plate
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- beams
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Abstract
The utility model provides a fixing device for load tests of a prestressed concrete beam. The fixing device comprises two testing beams, wherein the two testing beams are arranged parallel to each other; flange plates of the testing beams are oppositely arranged and act as a counter-force bracket of each other; fixing brackets which surround the peripheries of the end parts of the two testing beams are respectively arranged at two ends of the two testing beams; the fixing brackets comprise an upper bearing plate, a lower bearing plate, a left bearing plate and a right bearing plate; the end parts of the bearing plates are connected together to encircle a frame structure; the lower side surfaces of the flange plates of the testing beams are positioned on the lower bearing plate; the left bearing plate is contacted with the bottom surface at the end part of the web of one testing beam; the right bearing plate is contacted with the bottom surface at the end part of the web of the other testing beam; and a transversely arranged loading jack is arranged between the two testing beams. The fixing device is simple in structure and convenient to manufacture and use, does not damage the beams, needs no large-quantity practical load, and is convenient to test on site.
Description
Technical field
The utility model relates to the building structure technology field, the improvement of the stationary installation of test beam during the actual carrying capacity that is specifically related to test prestressed concrete beam by loading test.
Background technology
At present, known prestressed concrete beam loading test is generally to carry out in the laboratory of colleges and universities, scientific research institutions, during test, test beam is positioned on large-scale pressure testing machine and is loaded.For the beams of concrete of making at the scene or be placed in prestressed concrete beam in Practical Project (after comprising and using a period of time, the prestressed concrete beam that need be identified bearing capacity by loading test), if need to test its actual carrying capacity by loading test, two kinds of methods are arranged: the one, beams of concrete is pulled down, transport laboratory to, tested with pressure testing machine; The 2nd, directly carry out at the scene loading test and tested, test is loaded by the preloading form at the scene, so a large amount of loads in kind of needs (tens tons even cement or reinforcing bar or other weights of up to a hundred tons).
When using method one is tested, beam deadweight is larger, during traffic expense, effort, exist simultaneously beam is caused to damage may; When using method two is tested, need to provide very large load, and larger loading space is arranged.
The utility model content
The problems referred to above that exist for solving prior art, the utility model provides a kind of prestressed concrete beam loading test stationary installation, and simple in structure, making and easy to use adopts this stationary installation can not cause damage to beam, do not need a large amount of loads in kind, be convenient to be tested at the scene.
For reaching above-mentioned technical purpose, the utility model is achieved by the following technical solutions: a kind of prestressed concrete beam loading test stationary installation, comprise that two levels and flange plate are to putting the test beam of reaction frame each other, the two ends of two described test beams are respectively equipped with the fixed mount that surrounds the peripheral surrounding in its end, described fixed mount comprises, under, left, right four force bearing plates, the end connection of these four force bearing plates surrounds framed structure, the flange plate downside of two described test beams is positioned on described lower force bearing plate, described left force bearing plate contacts with the bottom surface, web end of a described test beam wherein, described right force bearing plate contacts with the bottom surface, web end of the described test beam of another root, be provided with horizontal loading lifting jack between two described test beams.
Be provided with height adjuster between the web of two described test beams and described lower force bearing plate.
The unitized construction that described height adjuster is lifting jack or steel plate or lifting jack and steel plate.
When described height adjuster is lifting jack, between described height adjuster and described lower force bearing plate, be provided with backing plate.
The end of four force bearing plates in described upper and lower, left and right connects by the mode of bolted, and the end joint face of described upper and lower two force bearing plates is provided with a plurality of bolt connecting holes.
Be installed with upper junction plate on described left and right two force bearing plates and end described upper force bearing plate joint face, be installed with lower connecting plate on described left and right two force bearing plates and end described lower force bearing plate joint face, on described upper junction plate and described lower connecting plate, each bolt connecting hole place of corresponding described upper and lower two force bearing plates is provided with connecting hole.
Compared with prior art, the utility model prestressed concrete beam loading test fixture structure is simple, and making and easy to use, when test prestressed concrete beam load-bearing capacity, can provide effective end anchorage, and can not cause damage to beams of concrete; Adopt the loading test method of testing of this stationary installation not need a large amount of loads in kind, be convenient to be tested at the scene.
The accompanying drawing explanation
The side view that Fig. 1 is the utility model embodiment prestressed concrete beam loading test stationary installation;
Fig. 2 be in Fig. 1 A-A to cut-open view.
Embodiment
For the purpose, technical scheme and the advantage that make the utility model embodiment clearer, below in conjunction with the accompanying drawing in the utility model embodiment, technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, rather than whole embodiment.Embodiment based in the utility model, those of ordinary skills are not making under the creative work prerequisite the every other embodiment obtained, and all belong to the scope of the utility model protection.
Shown in seeing figures.1.and.2, the present embodiment prestressed concrete beam loading test stationary installation comprises two test beams 1, two test beam 1 horizontal positioned, and its flange plate 1-1 is to putting, make two test beams reaction frame each other, the two ends of two test beams 1 are respectively equipped with the fixed mount that surrounds the peripheral surrounding in its end, fixed mount comprises force bearing plate 2, lower force bearing plate 3, left force bearing plate 4 and right force bearing plate 5, the end connection of these four force bearing plates surrounds framed structure, upper force bearing plate 2 is positioned on the flange plate 1-1 upper side of two test beams 1, with the flange plate 1-1 upper side of two test beams 1, contact, the flange plate 1-1 downside of two test beams 1 is positioned on lower force bearing plate 3, lower force bearing plate 3 is contacted with the flange plate 1-1 downside of two test beams 1, left force bearing plate 4 contacts with the bottom surface of the web 1-2 of the test beam 1 that is positioned at left side, right force bearing plate 5 contacts with the bottom surface of the web 1-2 of the test beam 1 that is positioned at right side, need to be provided with horizontal loading lifting jack 6 according to loading between two test beams 1, load lifting jack 6 in stress state, its bottom and jacking end all are against on the flange plate 1-1 of test beam 1.
Firm for the loading that guarantee to load lifting jack 6, its below can be supported or its top is lifted with cushion block, the center that makes to load lifting jack 6 just in time with test beam 1 Width on center superposition.In addition, according to the concrete size difference of test beam 1, the number that loads lifting jack 6 can be for a plurality of.
Upper force bearing plate 2 in the present embodiment, lower force bearing plate 3, left force bearing plate 4 and right force bearing plate 5 are selected H shaped steel force bearing plate, have rigidity and the stability of ribbed stiffener 12 with reinforcement plate on force bearing plate.
In horizontality, prevent destruction that the beam self gravitation causes and the accuracy of warranty test result for the web 1-2 that fully guarantees two test beams 1, between web 1-2 and lower force bearing plate 3, be provided with height adjuster.In the present embodiment, height adjuster is selected lifting jack 7, realizes the height control of web 1-2 by the jacking of lifting jack 7.Certainly, height adjuster also can be selected other versions, such as steel plate, by calculating web 1-2, needs padded height, selects the metal mat of suitable quantity and thickness to adjust web 1-2 in horizontality below web 1-2; In addition, when required adjustment is highly larger, for avoiding lifting jack 7 jacking distances larger, affect its stability, height adjuster also can be selected the unitized construction of lifting jack 7 and steel plate, be about to steel plate be placed in lifting jack 7 below, lifting jack 7 is raised to certain distance.
When the preferred lifting jack 7 of height adjuster, and the flange plate width of lower force bearing plate 3 hour, for ease of placing lifting jack 7, be provided with backing plate 8 between lifting jack 7 and lower force bearing plate 3, in support jack 7, can also increase the touch panel between lifting jack 7 and lower force bearing plate 3, guarantee that lower force bearing plate 3 can not be subject to too large pressure and damage.
The end of four of upper and lower, left and right force bearing plate 2,3,4,5 is connected by the mode of bolted, be provided with a plurality of bolt connecting holes 9 on its end joint face, can be according to the spacing of the left and right force bearing plate 4,5 of the height control of test beam, after adjusting to the right place, select corresponding bolt connecting hole 9 that each force bearing plate is fastenedly connected.
Because each force bearing plate of the present embodiment is selected the H shape steel plate, a left side for vertical placement, right force bearing plate 4, 5, itself and upper, lower force bearing plate 2, 3 end joint face is the H type, be not easy to carry out the bolt connection, for ease of realizing that bolt connects, and can realize that many bolts hole adjustings are left, right force bearing plate 4, 5 spacing, left, right two force bearing plates 4, be installed with upper junction plate 10 on 5 end joint face, with be installed with lower connecting plate 11 on the end joint face of lower force bearing plate 3, on upper junction plate 10 and lower connecting plate 11 on correspondence, lower two force bearing plates 2, each bolt connecting hole place of 3 is provided with connecting hole 13.In the present embodiment, the setting of upper junction plate 10 and lower connecting plate 11 can adopt the mode of welding, certainly also can adopt other modes, does not do concrete restriction.
The above, it is only preferred embodiment of the present utility model, be not the utility model to be done to the restriction of other form, any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as the equivalent embodiment of equivalent variations.But every technical solutions of the utility model content that do not break away from, any simple modification, equivalent variations and the remodeling above embodiment done according to technical spirit of the present utility model, still belong to the protection domain of technical solutions of the utility model.
Claims (6)
1. a prestressed concrete beam loading test stationary installation, comprise that two levels and flange plate are to putting the test beam of reaction frame each other, it is characterized in that: the two ends of two described test beams are respectively equipped with the fixed mount that surrounds the peripheral surrounding in its end, described fixed mount comprises, under, left, right four force bearing plates, the end connection of these four force bearing plates surrounds framed structure, the flange plate downside of two described test beams is positioned on described lower force bearing plate, described left force bearing plate contacts with the bottom surface, web end of a described test beam wherein, described right force bearing plate contacts with the bottom surface, web end of the described test beam of another root, be provided with horizontal loading lifting jack between two described test beams.
2. prestressed concrete beam loading test stationary installation according to claim 1, is characterized in that: between the web of two described test beams and described lower force bearing plate, be provided with height adjuster.
3. prestressed concrete beam loading test stationary installation according to claim 2, is characterized in that: the unitized construction that described height adjuster is lifting jack or steel plate or lifting jack and steel plate.
4. prestressed concrete beam loading test stationary installation according to claim 3, is characterized in that: when described height adjuster is lifting jack, between described height adjuster and described lower force bearing plate, be provided with backing plate.
5. prestressed concrete beam loading test stationary installation according to claim 1, it is characterized in that: the end of four force bearing plates in described upper and lower, left and right connects by the mode of bolted, and the end joint face of described upper and lower two force bearing plates is provided with a plurality of bolt connecting holes.
6. prestressed concrete beam loading test stationary installation according to claim 5, it is characterized in that: on described left and right two force bearing plates and end described upper force bearing plate joint face, be installed with upper junction plate, be installed with lower connecting plate on described left and right two force bearing plates and end described lower force bearing plate joint face, on described upper junction plate and described lower connecting plate, each bolt connecting hole place of corresponding described upper and lower two force bearing plates is provided with connecting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220645780 CN202956308U (en) | 2012-11-30 | 2012-11-30 | Fixing device for load test of prestressed concrete beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220645780 CN202956308U (en) | 2012-11-30 | 2012-11-30 | Fixing device for load test of prestressed concrete beam |
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| Publication Number | Publication Date |
|---|---|
| CN202956308U true CN202956308U (en) | 2013-05-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220645780 Expired - Fee Related CN202956308U (en) | 2012-11-30 | 2012-11-30 | Fixing device for load test of prestressed concrete beam |
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| Country | Link |
|---|---|
| CN (1) | CN202956308U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102998168A (en) * | 2012-11-30 | 2013-03-27 | 青岛理工大学 | Fixing device for load test of pre-stressed concrete beam and testing method |
-
2012
- 2012-11-30 CN CN 201220645780 patent/CN202956308U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102998168A (en) * | 2012-11-30 | 2013-03-27 | 青岛理工大学 | Fixing device for load test of pre-stressed concrete beam and testing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130529 Termination date: 20151130 |
|
| EXPY | Termination of patent right or utility model |