CN203658159U - Basic raft testing device - Google Patents
Basic raft testing device Download PDFInfo
- Publication number
- CN203658159U CN203658159U CN201320817534.4U CN201320817534U CN203658159U CN 203658159 U CN203658159 U CN 203658159U CN 201320817534 U CN201320817534 U CN 201320817534U CN 203658159 U CN203658159 U CN 203658159U
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- Prior art keywords
- raft plate
- cushion cap
- test unit
- cap center
- basic
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- 238000012360 testing method Methods 0.000 title claims abstract description 63
- 239000007787 solid Substances 0.000 claims abstract description 4
- 239000003351 stiffener Substances 0.000 claims description 33
- 239000011888 foil Substances 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 8
- 230000003014 reinforcing effect Effects 0.000 abstract 2
- 230000005484 gravity Effects 0.000 description 3
- 239000004568 cement Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000011068 loading method Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 239000011398 Portland cement Substances 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model discloses a basic raft testing device. The basic raft testing device comprises a bottom raft (1), a bearing platform center (2) and model piles (3), wherein the bottom raft (1) is polygonal; a plurality of side beams (4) which are connected in sequence are arranged along the edge of the upper end face of the bottom raft (1); a plurality of connecting parts which can be correspondingly connected with a plurality of model piles (3) are arranged on the bottom surface of the bottom raft (1); the bearing platform center (2) is a cylindrical solid body; the bottom of the bearing platform center (2) is fixed to the upper end face of the bottom raft (1); a plurality of rib beams (5) are arranged on the upper end face of the bottom raft (1). Reinforcing ribs and reinforcing concrete are arranged in sequence on a basic raft, and then, the rigidity of the basic raft can be changed twice, so that test requirements are met, experimental processes are simplified, and meanwhile, the test cost is lowered.
Description
Technical field
The utility model relates to a kind of foundation pile raft test unit, particularly, relates to a kind of beam and slab type blower foundation stake raft test unit, more specifically, relates to a kind of basic raft plate test unit of beam and slab type blower foundation stake raft.
Background technology
Beam and slab type basis is one of common form of blower foundation, can effectively increase globality, reduces ground additonal pressure, reduces sedimentation, adjust non-uniform settling.Compare gravity type foundation, beam and slab type base concrete consumption is less, and expense is lower, is therefore widely used in the construction of wind energy turbine set.
At present, the means of beam and slab type fundamental research mainly contain prototype measurement, static test, numerical analysis and model test.Model test can be simplified practical problems, in order to solution must not or the difficult problem that solves by straightway testing method of inconvenience, can raise the efficiency like this, greatly economize on resources, fund and time.
Model test method need to be carried out forces testing to the basic raft plate of different-stiffness, therefore generally need to prepare the basic raft plate for test of multiple different-stiffness, causes that process of the test is loaded down with trivial details and experimentation cost is higher.
In view of this, need to provide a kind of basic raft plate test unit that can need to increase according to test its rigidity in single test for twice.
Utility model content
Problem to be solved in the utility model is to provide a kind of basic raft plate test unit, and this basis raft plate test unit can need to increase rigidity twice according to test in single test, avoids preparing multiple basic raft plates to save cost.
For above-described problem, the utility model provides a kind of basic raft plate test unit, wherein, this basis raft plate test unit comprises bottom raft plate, multiple Model Pile (3) of cushion cap center and hollow, described bottom raft plate is polygon, and be provided with the multiple side bars that connect successively along the edge of the upper surface of this bottom raft plate to be formed as the polygon of sealing, the bottom surface of described bottom raft plate is provided with multiple connecting portions that can connection corresponding to described multiple Model Pile, described cushion cap center is column solid, the bottom at this cushion cap center is fixed on the upper surface of described bottom raft plate and is positioned at the described polygon that described multiple side bar surrounds, on the upper surface of described bottom raft plate, be also provided with multiple girt strips, one end of described multiple girt strips is fixed on the described polygonal different angle points that described multiple side bar surrounds separately, the other end is connected in described cushion cap in the heart.
Preferably, described bottom raft plate is regular polygon, and the multiple described side bar connecting is successively formed as the regular polygon of sealing.
Preferably, the described other end of described multiple girt strips be connected to described cushion cap center outer peripheral face along on circumferential diverse location, to make the angle between adjacent described girt strip identical.
Preferably, described cushion cap center is cylindrical structural, and described bottom raft plate is regular hexagon thin plate, and described multiple side bars are six, and described multiple girt strips are six.
Preferably, described basic raft plate test unit also comprises for being arranged on the multiple ribbed stiffeners between adjacent described girt strip, the two ends of each ribbed stiffener can be connected with described cushion cap center and described ring beam respectively, and described in each, bottom surface of ribbed stiffener can be connected with the upper surface of described bottom raft plate.
Preferably, described in each, the surperficial edge for being connected with described cushion cap center, described bottom raft plate and described ring beam of ribbed stiffener is respectively arranged with the edge of a wing, on the described edge of a wing, be provided with bolt hole, described multiple ribbed stiffener on described cushion cap center, described bottom raft plate and described ring beam, is respectively arranged with corresponding bolt hole, so that can be connected with described cushion cap center, described bottom raft plate and described ring beam by bolt.
Preferably, between adjacent described girt strip, be provided with under the state of described ribbed stiffener, between described girt strip and described ribbed stiffener, there is clearance space, and can fill the concrete of putting more energy in this clearance space.
Preferably, multiple connecting portions of the bottom surface of described bottom raft plate are multiple threaded holes, and the position of described multiple threaded holes corresponds respectively to described cushion cap center and described side bar, described in each, one end of Model Pile is provided with the external thread that can coordinate with described threaded hole.
Preferably, the height at described cushion cap center is greater than described ring depth of beam.
Preferably, described in each, the surface of the inside surface of Model Pile, described side bar and described girt strip is provided with multiple foil gauges.
By technique scheme, by set gradually ribbed stiffener and the concrete of putting more energy on basic raft foundation raft plate, rigidity that can twice change basis raft foundation raft plate, has met test demand, has simplified experimentation, has also reduced experimentation cost simultaneously.
Other feature and advantage of the present utility model are described in detail the embodiment part subsequently.
Accompanying drawing explanation
Accompanying drawing is to be used to provide further understanding of the present utility model, and forms a part for instructions, is used from explanation the utility model, but does not form restriction of the present utility model with embodiment one below.In the accompanying drawings:
Fig. 1 is according to the vertical view of the basic raft plate test unit of a kind of embodiment of the present utility model;
Fig. 2 is according to the side view of the basic raft plate test unit of a kind of embodiment of the present utility model.
Fig. 3 is according to the side view of the ribbed stiffener of a kind of embodiment of the present utility model.
Description of reference numerals
1 bottom raft plate 2 cushion cap centers
3 Model Pile 4 side bars
5 girt strip 6 ribbed stiffeners
7 edge of a wing 8 bolts hole
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is elaborated.Should be understood that, embodiment described herein only, for description and interpretation the utility model, is not limited to the utility model.
In the utility model, in the situation that not doing contrary explanation, the noun of locality of use typically refers to vertically upper and lower as " upper and lower ".
As illustrated in fig. 1 and 2, according to a kind of embodiment of the present utility model, a kind of basic raft plate test unit is provided, wherein, this basis raft plate test unit comprises bottom raft plate 1, multiple Model Pile 3 of cushion cap center 2 and hollow, bottom raft plate 1 is polygon, and be provided with along the edge of the upper surface of this bottom raft plate 1 the multiple side bar 4(that connect successively and be preferably the ring texture being integrally formed) to be formed as the polygon of sealing, the bottom surface of described bottom raft plate 1 is provided with multiple connecting portions that can connection corresponding to described multiple Model Pile 3, cushion cap center 2 is column solid, the bottom at this cushion cap center 2 is fixed on the upper surface of described bottom raft plate 1 and is positioned at the described polygon that multiple side bars 4 surround, on the upper surface of bottom raft plate 1, be also provided with multiple girt strips 5, one end of multiple girt strips 5 is fixed on the described polygonal different angle points that multiple side bars 4 surround separately, the other end is connected on cushion cap center 2.
Due to the effect of side bar 4 and girt strip 5, described basic raft plate test unit itself has certain rigidity, can carry out corresponding experimental test.On the upper surface of bottom raft plate 1, between multiple side bars 4 and multiple girt strip 5, be formed with multiple spaces, can again increase the rigidity of this basis raft plate test unit by the base part of putting more energy at the plurality of space-filling, thereby can on same raft plate, test the relevant Mechanical Data under different-stiffness, and needn't prepare again more raft plate, save experimentation cost.Usually, by cushion cap center 2, this basis raft plate test unit is loaded, multiple Model Pile 3 are arranged on the lower surface of bottom raft plate 1 to test relevant data (will further describe below).
Preferably, bottom raft plate 1 is regular polygon, so that processing, and is positioned at the polygon that the side bar 4 at raft plate 1 edge, bottom forms and can correspondingly changes according to the shape of bottom raft plate, thereby be formed as the regular polygon of sealing.Usually, the single piece that multiple side bars 4 are formed as one, is the ring texture of regular polygon.
According to a kind of embodiment of the present utility model, the described other end of multiple girt strips 5 be connected to described cushion cap center 2 outer peripheral faces along on circumferential diverse location, to make the angle between adjacent described girt strip 5 identical.That is to say, because bottom raft plate 1 is regular polygon shape as above, therefore multiple girt strips 5 can distribute around cushion cap center 2 equal angles, and such design can guarantee that the suffered load of girt strip 5 is identical, the test of being more convenient for.
According to a kind of embodiment of the present utility model, cushion cap center 2 is cylindrical structural, and bottom raft plate 1 is regular hexagon thin plate, and multiple side bars 4 are six, and multiple girt strips 5 are six.Because blower fan tower barrel is connected with cushion cap center 2 by foundation ring, therefore cushion cap center 2 is cylindrical structural, and in order to simulate the comparatively common board-like blower foundation of hexagon raft, the bottom raft plate 1 of test model is designed to hexagon.
In order to simulate the increase effect of girt strip to blower foundation rigidity, can prepare multiple ribbed stiffeners 6 and carry out rigidity increase for the first time.Multiple ribbed stiffeners 6 can arrange between adjacent girt strip 5, and the two ends of each ribbed stiffener 6 can be connected with cushion cap center 2 and side bar 4 respectively, and the bottom surface of each ribbed stiffener 6 can be connected with the upper surface of bottom raft plate 1.
The connected mode of ribbed stiffener 6 and cushion cap center 2, side bar 4 and bottom raft plate 1 has multiple, such as welding, bearing pin connection, bolt connection etc., is preferably and is bolted at this.Particularly, as shown in Figure 3, the surperficial edge for being connected with cushion cap center 2, bottom raft plate 1 and side bar 4 of each ribbed stiffener 6 is respectively arranged with the edge of a wing, on the described edge of a wing, be provided with bolt hole, multiple ribbed stiffener 6 on cushion cap center 2, bottom raft plate 1 and side bar 4, is respectively arranged with corresponding bolt hole, so that can be connected with cushion cap center 2, bottom raft plate 1 and side bar 4 by bolt.Because ribbed stiffener 6 need to be installed after bottom raft plate 1 is installed on the ground in process of the test, be therefore bolted and can make the installation of ribbed stiffener 6 more simple and efficient.
After described basic raft plate test unit being carried out to rigidity increase for the first time, can also carry out rigidity for the second time to it increases with simulated gravity formula blower foundation and pile-pile cap formula blower foundation.Between adjacent described girt strip 5, be provided with under the state of described ribbed stiffener 6, between described girt strip 5 and described ribbed stiffener 6, there is clearance space, in this clearance space, can fill the concrete of putting more energy into increase again the rigidity of described basic raft plate test unit.For guaranteeing that concrete does not ftracture, employing concrete strength is C30.Cement adopts 42.5 grades of portland cements, and match ratio is that 1 cubic meter of concrete needs 349kg cement, 185kg water, 641kg sand, 1192kg rubble.
Model Pile 3 can be screwed onto the lower surface of bottom raft plate 1.Particularly, multiple connecting portions of the bottom surface of bottom raft plate 1 are multiple threaded holes, and the position of described multiple threaded holes corresponds respectively to cushion cap center 2 and described side bar 4, and described in each, one end of Model Pile 3 is provided with the external thread that can coordinate with described threaded hole.Model Pile 3 can be corresponding to equally distributed 3 positions (as shown in Figure 1) at the corner location of side bar 4 and centre position and cushion cap center 2.
In addition, according to the needs of simulation blower foundation, the height at cushion cap center 2 should be greater than the height of side bar 4.Correspondingly, the height of two ends of ribbed stiffener 6 can be identical with the height of cushion cap center 2 and side bar 4 respectively, that is to say that ribbed stiffener 6 can be at right angles trapezoidal.
In order to test the stressed proterties of all parts, can multiple foil gauges be set on the surface of the inside surface of each Model Pile 3, side bar 4 and girt strip 5.
To the process of the test of preferred described basic raft plate test unit be described below, but this not should be understood to restriction of the present utility model.Wherein:
1) make basic raft plate test unit, bottom raft plate 1 is preferably regular hexagon, and correspondingly the quantity of side bar 4 and girt strip 5 is 6.Whole basic raft plate test unit uses aluminum alloy materials to make, and cushion cap center 2 and bottom raft plate 1 are made respectively, after completing, two parts are connected with bolt.Described basic raft plate test unit also comprises the Model Pile 3 of 15 hollows of the lower surface that can be arranged on bottom raft plate 1, Model Pile 3 is connected on bottom raft plate 1 through the bolt hole of bottom raft plate 1 correspondence by threaded one end is set, foil gauge is posted in the inside of Model Pile 3, in order to axle power and the moment of flexure of measurement model stake 3.
2) in model groove, sandy soil are filled out in layering, spread water, tamping leveling.In the process of banketing, Model Pile 3 is imbedded to assigned address.
3) arrange soil pressure cell, its position corresponds respectively to position, the center of girt strip 5 and the center of ribbed stiffener of the described angle point of vicinity of center, the girt strip 5 at cushion cap center 2.
4) bottom raft plate 1 and cushion cap center 2 are installed, link model stake 3 and bottom raft plate 1, arrange multiple foil gauges on the surface of side bar 4 and girt strip 5, and all foil gauges are connected in to strain acquirement instrument.
5) load for the first time, every grade loads 2kN, point 16 grades of loadings, and peak load is 32kN.Every grade of loading continues to carry out next stage, image data after 2 hours;
6) on bottom raft plate 1, ribbed stiffener 6 is installed, is loaded and image data by the mode of step 5.
7) at position, the space casting of ribbed stiffener 6 and girt strip 5 concrete of putting more energy into, in 12 hours after building, concrete is covered and moisture-keeping maintaining.After maintenance completes, load and image data by the mode of step 5.
8) disposal data.
More than be the concrete process of the test of basic raft plate test unit of the present utility model, strengthen processing owing to can described basic raft plate test unit being carried out to twice rigidity in process of the test, therefore can simulate many girt strips blower foundation and gravity type blower foundation, reduce the use mathematics of basic raft plate simultaneously, saved experimentation cost.
Below describe by reference to the accompanying drawings preferred implementation of the present utility model in detail; but; the utility model is not limited to the detail in above-mentioned embodiment; within the scope of technical conceive of the present utility model; can carry out multiple simple variant to the technical solution of the utility model, these simple variant all belong to protection domain of the present utility model.
It should be noted that in addition, each concrete technical characterictic described in above-mentioned embodiment, in reconcilable situation, can combine by any suitable mode, for fear of unnecessary repetition, the utility model is to the explanation no longer separately of various possible array modes.
In addition, also can carry out combination in any between various embodiment of the present utility model, as long as it is without prejudice to thought of the present utility model, it should be considered as content disclosed in the utility model equally.
Claims (10)
1. a basic raft plate test unit, it is characterized in that, this basis raft plate test unit comprises bottom raft plate (1), multiple Model Pile (3) of cushion cap center (2) and hollow, described bottom raft plate (1) is polygon, and be provided with the multiple side bars (4) that connect successively along the edge of the upper surface of this bottom raft plate (1) to be formed as the polygon of sealing, the bottom surface of described bottom raft plate (1) is provided with multiple connecting portions that can connection corresponding to described multiple Model Pile (3), described cushion cap center (2) is column solid, the bottom at this cushion cap center (2) is fixed on the upper surface of described bottom raft plate (1) and is positioned at the described polygon that described multiple side bar (4) surrounds, on the upper surface of described bottom raft plate (1), be also provided with multiple girt strips (5), one end of described multiple girt strip (5) is fixed on the described polygonal different angle points that described multiple side bar (4) surrounds separately, the other end is connected on described cushion cap center (2).
2. basic raft plate test unit according to claim 1, is characterized in that, described bottom raft plate (1) is regular polygon, and the multiple described side bar (4) connecting is successively formed as the regular polygon of sealing.
3. basic raft plate test unit according to claim 2, it is characterized in that, the described other end of described multiple girt strip (5) be connected to described cushion cap center (2) outer peripheral face along on circumferential diverse location, to make the angle between adjacent described girt strip (5) identical.
4. basic raft plate test unit according to claim 2, is characterized in that, described cushion cap center (2) is cylindrical structural, and described bottom raft plate (1) is regular hexagon thin plate, and described multiple side bars (4) are six, and described multiple girt strips (5) are six.
5. basic raft plate test unit according to claim 1, it is characterized in that, described basic raft plate also comprises for being arranged on the multiple ribbed stiffeners (6) between adjacent described girt strip (5), the two ends of each ribbed stiffener (6) can be connected with described cushion cap center (2) and described side bar (4) respectively, and described in each, bottom surface of ribbed stiffener (6) can be connected with the upper surface of described bottom raft plate (1).
6. basic raft plate test unit according to claim 5, it is characterized in that, ribbed stiffener described in each (6) for described cushion cap center (2), described bottom raft plate (1) is respectively arranged with the edge of a wing with the surperficial edge that described side bar (4) is connected, on the described edge of a wing, be provided with bolt hole, described cushion cap center (2), on described bottom raft plate (1) and described ring beam (4), be respectively arranged with corresponding bolt hole, so that described multiple ribbed stiffener (6) can be by bolt and described cushion cap center (2), described bottom raft plate (1) is connected with described side bar (4).
7. basic raft plate test unit according to claim 5, it is characterized in that, between adjacent described girt strip (5), be provided with under the state of described ribbed stiffener (6), between described girt strip (5) and described ribbed stiffener (6), there is clearance space, and can fill the concrete of putting more energy in this clearance space.
8. basic raft plate test unit according to claim 1, it is characterized in that, multiple connecting portions of the bottom surface of described bottom raft plate (1) are multiple threaded holes, and the position of described multiple threaded holes corresponds respectively to described cushion cap center (2) and described side bar (4), one end of Model Pile described in each (3) is provided with the external thread that can coordinate with described threaded hole.
9. basic raft plate test unit according to claim 1, is characterized in that, the height at described cushion cap center (2) is greater than the height of described side bar (4).
10. according to the basic raft plate test unit described in any one in claim 1 to 10, it is characterized in that, the side of the inside surface of Model Pile described in each (3), described side bar (4) side and described girt strip (5) is provided with multiple foil gauges.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320817534.4U CN203658159U (en) | 2013-12-11 | 2013-12-11 | Basic raft testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320817534.4U CN203658159U (en) | 2013-12-11 | 2013-12-11 | Basic raft testing device |
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| Publication Number | Publication Date |
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| CN203658159U true CN203658159U (en) | 2014-06-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320817534.4U Expired - Lifetime CN203658159U (en) | 2013-12-11 | 2013-12-11 | Basic raft testing device |
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| Country | Link |
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| CN (1) | CN203658159U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106948361A (en) * | 2017-05-10 | 2017-07-14 | 南京瑞麒凰电子科技有限公司 | A kind of independent hardened structure of cushion cap pocket and foundation structure of building |
| CN113404076A (en) * | 2021-06-16 | 2021-09-17 | 中建科工集团有限公司 | Raft foundation construction method for pile foundation detection and prefabricated raft |
-
2013
- 2013-12-11 CN CN201320817534.4U patent/CN203658159U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106948361A (en) * | 2017-05-10 | 2017-07-14 | 南京瑞麒凰电子科技有限公司 | A kind of independent hardened structure of cushion cap pocket and foundation structure of building |
| CN106948361B (en) * | 2017-05-10 | 2020-01-21 | 南京瑞麒凰电子科技有限公司 | Independent bearing platform pocket plate structure and building foundation structure |
| CN113404076A (en) * | 2021-06-16 | 2021-09-17 | 中建科工集团有限公司 | Raft foundation construction method for pile foundation detection and prefabricated raft |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140618 |
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| CX01 | Expiry of patent term |