CN202041399U - Dead load testing device for stress of precast beam - Google Patents
Dead load testing device for stress of precast beam Download PDFInfo
- Publication number
- CN202041399U CN202041399U CN2011201255851U CN201120125585U CN202041399U CN 202041399 U CN202041399 U CN 202041399U CN 2011201255851 U CN2011201255851 U CN 2011201255851U CN 201120125585 U CN201120125585 U CN 201120125585U CN 202041399 U CN202041399 U CN 202041399U
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- force
- precast beam
- counter
- stress
- load testing
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Abstract
Disclosed is a dead load testing device for stress of a precast beam. One end of each of a plurality of counterforce anchor rods is connected with a base, the other end of each counterforce anchor rod is connected with a counterforce steel beam, a force transmission device is arranged below each counterforce steel beam, and support devices are arranged above the base. The dead load testing device with the structure realizes dead load testing for stress of the precast beam with less equipment, stress is loaded by jacks, and accordingly counter weight and hoisting facilities are not needed. The dead load testing device is simple and convenient in operation, high in safety and convenient and speedy in changing stress load points.
Description
Technical field
The utility model relates to a kind of test unit, particularly a kind of T type precast beam stress static load test device.
Background technology
Precast beam lotus stress carries the general mode that loads counterweight on the platform that adopts of test to carry out, promptly place rail, lifting jack, load transducer, reverse loading beam etc., on platform, place balancing weight when weight is not enough or counterweight is hung to gain in weight with wire rope in the platform both sides at the test beam end face.Hang the prestowage beam with crane at the trial or accumulation load method loads, this test unit is owing to need to increase counterweight, so need counterweight beam or balancing weight, the loading of counterweight then needs to finish with the lifting facility.Auxiliary material and facility that the method need be prepared are many, and security is not high; When the stress load(ing) point changes, need mobile counterweight, complex operation; Inefficiency.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of precast beam stress static load test device, can realize the static load test of precast beam stress with less equipment, do not need counterweight and lifting facility, easy and simple to handle, safe, it is convenient and swift to change the stress load(ing) point.
For solving the problems of the technologies described above, the technical scheme that the utility model adopted is: a kind of precast beam stress static load test device, and many counter-force anchor pole one ends are connected with basic body, and the other end is connected with the counter-force girder steel, counter-force girder steel below is provided with load transfer device, and basic body top is provided with fulcrum arrangement.
Be provided with beam between load transfer device and the fulcrum arrangement.
Described counter-force anchor pole is provided with sleeve.
Described load transfer device is made up of force-transmitting pole, force transducer and lifting jack.
Also be provided with billet on the described force-transmitting pole.
Described fulcrum arrangement is made up of rubber support and concrete bearing.
A kind of precast beam stress static load test device that the utility model provides by adopting said structure, is realized the static load test of precast beam stress with less equipment, adopts lifting jack to carry out stress and loads, thereby do not need counterweight and lifting facility.The utility model is easy and simple to handle, and is safe, and it is convenient and swift to change the stress load(ing) point.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples:
Fig. 1 is a front elevation of the present utility model.
Fig. 2 is a side view of the present utility model.
Fig. 3 is the vertical view of basic body and concrete bearing in the utility model.
Fig. 4 is the A-A cut-open view of Fig. 3.
Embodiment
In Fig. 1, Fig. 2, a kind of precast beam stress static load test device, many counter-force anchor pole 1 one ends are connected with basic body 11, the other end is connected with counter-force girder steel 2, counter-force girder steel 2 belows are provided with load transfer device, body 11 tops, basis are provided with fulcrum arrangement, and in Fig. 2, wherein many counter-force anchor poles 1 are formed one " door " shape structure with basic body 11.
Be provided with beam 10 between load transfer device and the fulcrum arrangement.
Described counter-force anchor pole 1 is provided with sleeve 9, because counter-force anchor pole 1 has part to be cast in the basic body 11,, sleeve 9 is set is used for connection between the counter-force anchor pole 1 for ease of dismounting.
Described load transfer device is made up of force-transmitting pole 4, force transducer 5 and lifting jack 6.
Also be provided with billet 3 on the described force-transmitting pole 4.
Described fulcrum arrangement is made up of rubber support 7 and concrete bearing 8.
Be example explanation using method specifically with T type precast beam:
1, fixing counter-force anchor pole 1: be evenly distributed on the six roots of sensation counter-force anchor pole by design load, determine the size of anchor pole, anchor pole is embedded in the concrete as basic body 11 according to cast-in-place concrete on the precast beam size ground in position, as counter-force anchor pole 1.Perhaps on existing rock or concrete platform, hole, anchor pole is implanted in rock or the concrete, and coupling sleeve 9.
2, lengthening counter-force anchor pole 1: according to the distance of ground and counter-force girder steel 2, determine the size of lengthening counter-force anchor pole, be as the criterion force-transmitting pole 4, force transducer 5, lifting jack 6, rubber support 7, concrete bearing 8 and T type precast beam all can be positioned over wherein, use sleeve to be connected with the counter-force anchor pole that fixes on the ground then.
3, place fulcrum arrangement and T type precast beam: rubber support 7 is placed on the concrete bearing 8 forms fulcrum arrangement, fulcrum arrangement is placed between the counter-force anchor pole, be put in the position at T type precast beam two ends, again the lifting of T type precast beam is placed on the fulcrum arrangement, and the position of adjustment fulcrum arrangement and T type precast beam, make T type precast beam two ends stress equalization.
4, fixing counter-force girder steel 2: in the boring of counter-force girder steel 2 two ends, with nut counter-force girder steel 2 is fixed on the counter-force anchor pole 1,2 counter-force anchor pole 1 corresponding counter-force girder steels 2 can be regulated the position of counter-force girder steel 2 on counter-force anchor pole 1 with nut;
5, load transfer device is installed: with force transducer 5 and lifting jack 6 aggregate erections, totally three overlap, be evenly distributed and be placed on the T type precast beam, the force-transmitting pole 4 that the horizontal positioned joist steel is made on the three cover force transducers 5, between joist steel force-transmitting pole 4 and the counter-force girder steel 2 billet 3 is set, then with counter-force girder steel 2 place's nut tightenings;
6, load: will install all installations, fixedly begin to use after finishing 6 pairs of T types of lifting jack precast beam is carried out loading experiment, and utilize force transducer 5 acquisition test data.
7, as among Fig. 3, Fig. 4, change the position of fulcrum arrangement, thereby change the stress load(ing) point of T type precast beam, repeat above-mentioned 3-6 step and carry out the multiple spot load test.
Claims (6)
1. precast beam stress static load test device, it is characterized in that: many counter-force anchor pole (1) one ends are connected with basic body (11), the other end is connected with counter-force girder steel (2), and counter-force girder steel (2) below is provided with load transfer device, and basic body (11) top is provided with fulcrum arrangement.
2. a kind of precast beam stress static load test device according to claim 1 is characterized in that: be provided with beam (10) between load transfer device and the fulcrum arrangement.
3. a kind of precast beam stress static load test device according to claim 1, it is characterized in that: described counter-force anchor pole (1) is provided with sleeve (9).
4. a kind of precast beam stress static load test device according to claim 1, it is characterized in that: described load transfer device is made up of force-transmitting pole (4), force transducer (5) and lifting jack (6).
5. a kind of precast beam stress static load test device according to claim 4 is characterized in that: also be provided with billet (3) on the described force-transmitting pole (4).
6. a kind of precast beam stress static load test device according to claim 1, it is characterized in that: described fulcrum arrangement is made up of rubber support (7) and concrete bearing (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201255851U CN202041399U (en) | 2011-04-26 | 2011-04-26 | Dead load testing device for stress of precast beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201255851U CN202041399U (en) | 2011-04-26 | 2011-04-26 | Dead load testing device for stress of precast beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202041399U true CN202041399U (en) | 2011-11-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201255851U Expired - Fee Related CN202041399U (en) | 2011-04-26 | 2011-04-26 | Dead load testing device for stress of precast beam |
Country Status (1)
| Country | Link |
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| CN (1) | CN202041399U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102589911A (en) * | 2012-01-19 | 2012-07-18 | 关喜才 | Site-load simulation experiment device of beam type structure and detecting method thereof |
| CN102620982A (en) * | 2012-03-28 | 2012-08-01 | 三峡大学 | Concrete beam reverse loading test device |
| CN108951720A (en) * | 2018-06-20 | 2018-12-07 | 中冶成都勘察研究总院有限公司 | A kind of static load test reference stake and datum line beam |
| CN112627060A (en) * | 2020-12-30 | 2021-04-09 | 中国建筑土木建设有限公司 | Side-span cast-in-place section cantilever bearing system and construction method thereof |
| CN114295483A (en) * | 2021-12-29 | 2022-04-08 | 常熟市工程质量检测中心 | Loading device and loading method for structure performance test of prefabricated laminated slab |
-
2011
- 2011-04-26 CN CN2011201255851U patent/CN202041399U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102589911A (en) * | 2012-01-19 | 2012-07-18 | 关喜才 | Site-load simulation experiment device of beam type structure and detecting method thereof |
| CN102589911B (en) * | 2012-01-19 | 2014-10-22 | 关喜才 | Site-load simulation experiment device of beam type structure and detecting method thereof |
| CN102620982A (en) * | 2012-03-28 | 2012-08-01 | 三峡大学 | Concrete beam reverse loading test device |
| CN108951720A (en) * | 2018-06-20 | 2018-12-07 | 中冶成都勘察研究总院有限公司 | A kind of static load test reference stake and datum line beam |
| CN112627060A (en) * | 2020-12-30 | 2021-04-09 | 中国建筑土木建设有限公司 | Side-span cast-in-place section cantilever bearing system and construction method thereof |
| CN114295483A (en) * | 2021-12-29 | 2022-04-08 | 常熟市工程质量检测中心 | Loading device and loading method for structure performance test of prefabricated laminated slab |
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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: 20111116 Termination date: 20200426 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |