CN106545038A - A kind of static load test device - Google Patents
A kind of static load test device Download PDFInfo
- Publication number
- CN106545038A CN106545038A CN201611049065.0A CN201611049065A CN106545038A CN 106545038 A CN106545038 A CN 106545038A CN 201611049065 A CN201611049065 A CN 201611049065A CN 106545038 A CN106545038 A CN 106545038A
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- China
- Prior art keywords
- truss
- pole
- water bag
- top curve
- part structure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D33/00—Testing foundations or foundation structures
Abstract
The present invention relates to foundation field, specifically a kind of static load test device, including jack, wherein point is fixedly supported to the girder of jack telescopic end, parallel to overlap some root bottom part sub-trusses for being fixed on girder, with the quantity such as bottom sub-truss some midfoot support truss and some top curve truss.The present invention is compared with prior art：The contact area that arch loading plate is provided is significantly increased can carry water bag volume.Under the conditions of overall dimensions identical, loading plate is effectively improved the contact area of water bag, that is, improve the available counter-force of water bag, applicable more engineering specifications.Top curve truss not only produces vertical counter-force under vertical uniform load q, at supporting, but also produces horizontal thrust.Due to the presence of this horizontal thrust, the moment of flexure of arch will be the moment of flexure of the beam than identical across footpath little more, and allow total to bear bigger load, while also therefore increased service life, are more beneficial for energy-conservation.
Description
Technical field
The present invention relates to foundation field, specifically a kind of static load test device.
Background technology
In today of national economy fast development, building trade has also obtained development at full speed.Static test is used as ground
Carry the concern that a requisite ring in checking increasingly obtains people.Traditional static test is provided using concrete block
Counter-force, and concrete block in handling process, causes some to waste time and energy unavoidably, runs into soft layer for the construction machine that transports
Tool is not easy the problems such as marching into the arena.Based on problem above, it is proposed that water bag static-load testing device, replace concrete using water bag water-filling
Block provides counter-force, greatly facilitates the carrying out of test.But the problem little to the toppling property and lift-launch amount of this device generation improves
It is still very necessary.
The content of the invention
The present invention is intended to provide a kind of new static-load testing device, to solve to carry not present in conventional technique
Just, waste time and energy, anti-overturning difference and lift-launch amount it is little the problems such as.
The present invention is achieved by the following technical solutions：A kind of static load test device, including jack, wherein solid point
Surely the girder of jack telescopic end, some root bottom part sub-trusses that parallel overlap joint is fixed on girder, with bottom are supported in
Some midfoot support truss and some top curve truss of the quantity such as support truss；
Each midfoot support truss includes the left part structure in mirror image correspondence arrangement and right part structure, and the left part structure includes one
End is connected to first pole and the second pole of respective base sub-truss left end, and one end is connected to same bottom and supports purlin
3rd pole at frame midpoint；The other end of the other end of the second pole and the 3rd pole is connected to form tie point, the first pole
The other end be fixed on respective tops belfast truss left end, and tie point is fixed on same top curve truss left-half, phase
Linked together by upper support truss between the left end of adjacent top curve truss, the adjacent top arc at tie point
Linked together by upper support truss between truss left-half；The right part structure of the midfoot support truss in the same manner, in
The left part structure and right part structure of portion's sub-truss coordinates jointly so that top curve truss recess is towards jack；
The two ends of the outermost two top curve truss of all top curve truss are respectively connected with tension reinforcement, Suo Youshou
Reinforcing bar is drawn to be connected on ground by earth anchor counterforce device again；
All top curve truss and upper support truss are supported with arc loading plate jointly, and loading plate is all around provided with coaming plate,
On loading plate and it is booked and is equipped with even rows water bag, the length direction of water bag is consistent with the length direction of girder, per the upper of draining bag
Portion center is respectively arranged at two ends with a delivery port at least provided with a water inlet, the bottom of each water bag.
When specifically used, in order to improve the stability of loading plate, the width and equal length of each water bag and with loading plate in
Chamber is engaged.
The present invention is compared with prior art：
1st, the contact area that arch loading plate is provided is significantly increased and can carry water bag volume.In overall dimensions identical condition
Under, loading plate is effectively improved the contact area of water bag, that is, improve the available counter-force of water bag, applicable more engineerings
Condition.
2nd, top curve truss under vertical uniform load q not only produces vertical counter-force, but also produces level at supporting
Thrust.Due to the presence of this horizontal thrust, the moment of flexure of arch will be the moment of flexure of the beam than identical across footpath little more, and make total
Bigger load can be born, while also therefore increased service life, energy-conservation is more beneficial for.
3rd, truss and the connection of earth anchor counterforce device, greatly improve overall stability.Earth anchor counterforce device also exists simultaneously
A part of counter-force is provided while strengthening stability, is brought out the best in each other.
4th, water bag adopts multiple rows of strip.The water inlet water-filling in water filling process.Can be according to actual demands of engineering, using two ends
Volume size of the water bag per bar, controls the filled water amount of left and right two ends water inlet.Be conducive to control load size at any time and avoid out
Existing bias situation.
Description of the drawings
Fig. 1 is the structural representation of static load test device of the present invention.
Top views of the Fig. 2 for Fig. 1（In figure, loading plate, water bag are not drawn into）.
Fig. 3 is a kind of structural representation of many siphunculus（Three-way pipe）.
In figure：1- jack, 2- girders, 3- bottoms sub-truss, 4- midfoot support truss, many siphunculus of 5-, 6- loading plates,
7- top curve truss, 8- water bags, 9- upper support truss, 10- nuts, 11- straight screw sleeves, 12- tension reinforcements, 13- anchors
Bar, 14- anchor slabs, 15- coaming plates, the first poles of 41-, the second poles of 42-, the 3rd poles of 43-.
Specific embodiment
With reference to accompanying drawing, the present invention is further described, by taking the water bag for carrying 60t as an example：
First, apparatus structure
A kind of static load test device, including jack 1, wherein point is fixedly supported to the girder 2 of 1 telescopic end of jack, it is parallel
Some root bottom part sub-trusses 3 for being fixed on girder 2 of overlap joint, some midfoot support purlins with the quantity such as bottom sub-truss 3
Frame 4 and some top curve truss 7；
Each midfoot support truss 4 includes the left part structure in mirror image correspondence arrangement and right part structure, and the left part structure includes
One end is connected to first pole 41 and the second pole 42 of 3 left end of respective base sub-truss, and one end is connected to same bottom
3rd pole 43 at 3 midpoint of portion's sub-truss；The other end of the second pole 42 and the other end of the 3rd pole 43 are connected to be formed
Tie point, the other end of the first pole 41 are fixed on 7 left end of respective tops belfast truss, and tie point is fixed on same top arc
7 left-half of shape truss, is linked together by upper support truss 9 between the left end of adjacent top belfast truss 7, positioned at even
Linked together by upper support truss 9 between 7 left-half of adjacent top belfast truss of junction；The middle part in the same manner
The right part structure of sub-truss 4, the left part structure and right part structure of midfoot support truss 4 coordinate jointly so that top curve truss
7 recesses are towards jack 1；
The two ends of 7 outermost two top curve truss 7 of all top curve truss are respectively connected with tension reinforcement 12, institute
There is tension reinforcement 12 to be connected on ground by earth anchor counterforce device again；
All top curve truss 7 and upper support truss 9 are supported with arc loading plate 6 jointly, and loading plate 6 is all around provided with and encloses
Plate 15, on loading plate 6 and is booked and is equipped with even rows water bag 8, and the length direction of water bag 8 is consistent with the length direction of girder 2, often arranges
The central upper portion of water bag 8 is respectively arranged at two ends with a delivery port at least provided with a water inlet, the bottom of each water bag 8.
When the present invention is specifically installed, referring to Fig. 1 and Fig. 2, it is 6m to take girder 2, and bottom sub-truss 3 is 6m, and bottom is propped up
Support truss 3 is ridden upon on girder 2 every 1m；Top curve truss 7 is taken for 10.8m.By 7 trisection of top curve truss, each
Equally divided position is rod member junction position, and top, four kinds of upper, middle and lower component pass through many siphunculus 5 in junction and nut 10 is connected
Connect.According to the quantity of junction rod member and required angle requirement, bipass, three-way pipe of prefabricated multi-angle etc. can be distinguished.With
As a example by the connection of upper support truss 9 and top braces truss, upper support truss 9 is multi-segment structure, takes per section for 1m, adjacent
Screwed boss structure is convexly equipped with the inside of top braces truss 7, when a wherein arm and the wherein one section top of bipass
After 9 grafting of sub-truss coordinates, the nut 10 on corresponding arm is screwed, when another arm and the top braces truss 7 of bipass
Boss structure grafting coordinate after, screw the nut 10 on corresponding arm；There is in the arm of bipass enlarging annular outwardly
The conical surface, when the nut 10 on arm is screwed, conical surface inner edge can equably nip rod member, formed and effectively sealed, by upper support
Truss 9 is connected with top braces truss 7.By taking the connection of bottom sub-truss 3 and midfoot support truss 4 as an example, by bottom
Support truss 3 is halved, the inner side of bottom sub-truss 3（Or outside）Central point and end be convexly equipped with respectively it is screwed convex
Platform structure, the end of midfoot support truss 4 are similarly convexly equipped with screwed boss structure, a wherein arm point of three-way pipe
Screw the nut 10 on corresponding arm after not coordinating to the boss structure grafting of 3 left end of bottom sub-truss, three-way pipe it is another
The boss structure grafting of arm and 41 end of the first pole screws the nut 10 on corresponding arm after coordinating, three-way pipe last
Arm and the nut 10 screwed after 42 lug bosses at end part structure grafting of the second pole cooperation on corresponding arm, complete the company of left end structure
Connect.Plurality of rods part connects through many siphunculus and realizes, device is quick for installation simple when using, and overlap joint is convenient；Device can enter when depositing
Row dismounting, saves memory space, and can be used for multiple times, environmental protection and energy saving.
When being embodied as, earth anchor counterforce device includes some anchor poles 13 in embedded ground, in pouring into ground and wraps up anchor
The cement mortar of bar 13, the anchor slab 14 for being connected with tension reinforcement 12 and matching with anchor pole 13.Truss overlap joint is finished, and is configured to
Anchor counterforce device.Anchor pole 13 is implanted in batholith, anchor pole 13 pours into cement mortar after fixing and consolidated, by anchor pole 13 and rock
The vertical frictional force and horizontal resistance of base is providing counter-force.
The two ends end of outermost two top curve truss 7 is along the circumferential direction provided with annular stopper, each ring all over the body
On shape seam, equal screw thread is combined with straight screw sleeve 11, and the other end of straight screw sleeve 11 is connected with 12 screw thread of corresponding tension reinforcement
Connect.Truss structure and earth anchor counterforce device are connected by tension reinforcement 12, using straight screw sleeve 11 by truss and tension reinforcement
12 overlap, and a part of counter-force is may also provide while stability is greatly improved, and strengthen the engineering adaptability of structure.
All top curve truss 7 and upper support truss 9 are supported with arc loading plate 6 jointly, and water bag 8 is positioned over carrying
On plate 6.Loading plate 6 takes the steel plate with 7 identical radian measure of top curve truss, arc length 10.8m, wide 6m, during practice of construction, loading plate
6 size suitably can take greatly, reduce the generation that loading plate 6 rolls phenomenon.The coaming plate 15 of high 1.5m is provided with all around, to prevent water
Bag 8 slides.When being embodied as, loading plate 6 and coaming plate 5 are by being welded to connect.
By taking Fig. 1 as an example, water bag 8 is the high-strength water bag of six row's strips, is 1.8m per 8 size of draining bag（10.8/6）×1.0m×
6m, volume size are about 10m3, it is separate individuality per draining bag 8.Steel plate reinforcement can be set up inside water bag 8, specifically may be used
It is supported on the inside of water bag 8 from front to back using tubulose steel plate.After truss structure is installed, water-filling is carried out to water bag 8 and provides anti-
Power.
Jack 1 is located at truss structure lower central position, jack 1 can according to amesdial reading jack-up upwards step by step,
Device transmits load to pile crown by jack 1.
2nd, construction method
Device construction and installation are finished, and carry out water-filling with water pump by the water inlet of 8 central upper portion of water bag.In order to maintain load work
With balance, water-filling is first carried out to the water bag 8 at truss structure two ends.In water filling process, keep the filled water amount in two ends water bag 8 basic
Unanimously, with avoid produce eccentric load.At the same time, jack-up provides load to pile foundation to jack 1 step by step.Observation strip water bag 8
Interior water-filling situation, controls inflow at any time, shows reading according to amesdial, carries out multistage loadings.
When 8 water-filling of water bag is finished, there is provided peak load can not still meet requirement of engineering, suitably can continue loading.Truss
Carrying platform has the variation tendency for shifting up because of the effect of 1 power of jack.Anchor pole 13 is interacted and passes through tension with batholith
Reinforcing bar 12 hinders truss displacement, there is provided counter-force.This can be provided the counter-force effect of maximum for static load test device.
In the case where relatively low load situation is needed, such as 40t carries hydraulic pressure, four 8 water-fillings of water bag that can only to two ends, you can full
Sufficient load needs.As truss structure does not have change in displacement trend this moment, earth anchor counterforce device does not provide counter-force, and only device is carried
For stability.The pressure-bearing load for needing so both had been provided, the stability of device had been in turn ensure that.
Claims (4)
1. a kind of static load test device, it is characterised in that including jack（1）, wherein point is fixedly supported to jack（1）Stretch
The girder at contracting end（2）, parallel overlap joint is fixed on girder（2）On some root bottom part sub-trusses（3）, with bottom sub-truss
（3）Etc. some midfoot support truss of quantity（4）With some top curve truss（7）；
Each midfoot support truss（4）Including the left part structure in mirror image correspondence arrangement and right part structure, the left part structure bag
Include one end and be connected to respective base sub-truss（3）First pole of left end（41）With the second pole（42）, and one end connection
In same bottom sub-truss（3）3rd pole at midpoint（43）；Second pole（42）The other end and the 3rd pole（43）'s
The other end is connected to form tie point, the first pole（41）The other end be fixed on respective tops belfast truss（7）Left end, and even
Contact is fixed on same top curve truss（7）Left-half, adjacent top belfast truss（7）Left end between by top
Support truss（9）Link together, the adjacent top belfast truss at tie point（7）Pass through upper support between left-half
Truss（9）Link together；The midfoot support truss in the same manner（4）Right part structure, midfoot support truss（4）Left part structure
Coordinate with right part structure jointly and cause top curve truss（7）Recess is towards jack（1）；
All top curve truss（7）Outermost two top curve truss（7）Two ends be respectively connected with tension reinforcement
（12）, all tension reinforcements（12）It is connected on ground by earth anchor counterforce device again；
All top curve truss（7）With upper support truss（9）It is supported with jointly arc loading plate（6）, loading plate（6）Surrounding
Enclose and be provided with coaming plate（15）, loading plate（6）Go up and be booked and be equipped with even rows water bag（8）, water bag（8）Length direction and girder（2）
Length direction it is consistent, per draining bag（8）Central upper portion at least provided with a water inlet, each water bag（8）Bottom two ends
It is respectively equipped with a delivery port.
2. a kind of static load test device according to claim 1, it is characterised in that earth anchor counterforce device includes embedded ground
Some anchor poles in base（13）, in pouring into ground and wrap up anchor pole（13）Cement mortar, with tension reinforcement（12）Be connected and
With anchor pole（13）The anchor slab for matching（14）.
3. a kind of static load test device according to claim 1 and 2, it is characterised in that the company between truss and truss
Connect is by many siphunculus（5）And it is threadedly connected to many siphunculus（5）Nut on arm（10）.
4. a kind of static load test device according to claim 1 and 2, it is characterised in that outermost two tops arc
Shape truss（7）Two ends end be along the circumferential direction provided with annular stopper all over the body, on each annular stopper, equal screw thread is combined with straight spiral shell
Line sleeve（11）, straight screw sleeve（11）The other end and corresponding tension reinforcement（12）Threaded connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611049065.0A CN106545038B (en) | 2016-11-25 | 2016-11-25 | A kind of static load test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611049065.0A CN106545038B (en) | 2016-11-25 | 2016-11-25 | A kind of static load test device |
Publications (2)
| Publication Number | Publication Date |
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| CN106545038A true CN106545038A (en) | 2017-03-29 |
| CN106545038B CN106545038B (en) | 2019-02-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611049065.0A Active CN106545038B (en) | 2016-11-25 | 2016-11-25 | A kind of static load test device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107034929A (en) * | 2017-04-08 | 2017-08-11 | 温州信达交通工程试验检测有限公司 | A kind of dead load test on pile foundation system |
| CN115492071A (en) * | 2022-09-21 | 2022-12-20 | 甘肃省交通科学研究院集团有限公司 | Reaction platform for static load test of foundation in highway tunnel and construction method thereof |
| CN116752589A (en) * | 2023-08-22 | 2023-09-15 | 北京中建建筑科学研究院有限公司 | Prestressed fish belly type reaction frame, pile foundation bearing capacity detection device and application |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2119443U (en) * | 1992-03-12 | 1992-10-21 | 刘小清 | Liquid weight counterbalance type static load tester |
| CN2221210Y (en) * | 1994-11-09 | 1996-02-28 | 乔墩华 | Pile testing device |
| JP2002206208A (en) * | 2001-01-10 | 2002-07-26 | Nkk Corp | Connecting structure of steel trussed girder and reinforced concrete pier |
| CN101259905A (en) * | 2008-04-10 | 2008-09-10 | 陈江涛 | Load-carrying water bag and use thereof |
| CN201386291Y (en) * | 2009-02-10 | 2010-01-20 | 叶长青 | Static load test device of composite foundation |
-
2016
- 2016-11-25 CN CN201611049065.0A patent/CN106545038B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2119443U (en) * | 1992-03-12 | 1992-10-21 | 刘小清 | Liquid weight counterbalance type static load tester |
| CN2221210Y (en) * | 1994-11-09 | 1996-02-28 | 乔墩华 | Pile testing device |
| JP2002206208A (en) * | 2001-01-10 | 2002-07-26 | Nkk Corp | Connecting structure of steel trussed girder and reinforced concrete pier |
| CN101259905A (en) * | 2008-04-10 | 2008-09-10 | 陈江涛 | Load-carrying water bag and use thereof |
| CN201386291Y (en) * | 2009-02-10 | 2010-01-20 | 叶长青 | Static load test device of composite foundation |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107034929A (en) * | 2017-04-08 | 2017-08-11 | 温州信达交通工程试验检测有限公司 | A kind of dead load test on pile foundation system |
| CN115492071A (en) * | 2022-09-21 | 2022-12-20 | 甘肃省交通科学研究院集团有限公司 | Reaction platform for static load test of foundation in highway tunnel and construction method thereof |
| CN115492071B (en) * | 2022-09-21 | 2024-01-26 | 甘肃省交通科学研究院集团有限公司 | Counterforce platform for static load test of foundation in highway tunnel and construction method thereof |
| CN116752589A (en) * | 2023-08-22 | 2023-09-15 | 北京中建建筑科学研究院有限公司 | Prestressed fish belly type reaction frame, pile foundation bearing capacity detection device and application |
| CN116752589B (en) * | 2023-08-22 | 2023-11-17 | 北京中建建筑科学研究院有限公司 | Prestressed fish belly type reaction frame, pile foundation bearing capacity detection device and application |
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| Publication number | Publication date |
|---|---|
| CN106545038B (en) | 2019-02-26 |
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