CN205387726U - Static load testing arrangement of asymmetric counter weight - Google Patents
Static load testing arrangement of asymmetric counter weight Download PDFInfo
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- CN205387726U CN205387726U CN201620135417.3U CN201620135417U CN205387726U CN 205387726 U CN205387726 U CN 205387726U CN 201620135417 U CN201620135417 U CN 201620135417U CN 205387726 U CN205387726 U CN 205387726U
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Abstract
The utility model discloses a static load testing arrangement of asymmetric counter weight, including main frame, counter -force amplification device and auxiliary device, counter -force amplification device adopts the pillar as support preceding, back level fulcrum, when the ballast platform counter -force F of jack transmission transmits pressure output board by pressure input board, enlargies to nF, realizes asymmetric counter weight loading. The utility model discloses the principle is clear, rational in infrastructure, reduced static load test counter weight by a wide margin, provides the powerful guarantee for accomplishing the test of large -tonnage or super large tonnage static load, has practiced thrift engineering cost and time simultaneously, has increased the security, has wide application market and developing prospect.
Description
Technical field
This utility model relates to Geotechnical Engineering foundation pile and foundation bearing capacity detection technique field, particularly the test for static load device of a kind of asymmetric counterweight.
Background technology
The domestic existing research about test for static load apparatus and method obtains certain progress in raising test efficiency and safety, and especially large-tonnage and super-tonnage device obtain following achievement:
(1) Chinese Patent Application No. 201510385480.2, describe a kind of pile foundation static loading test device, the position that puts off being shaped such that between piling balancing weight by designing piling balancing weight is fixed, make whole piling structural focus at jack place, solve the equilibrium point problem of a large amount of preloading of accumulation load method, make the stability of ballast platform and safety increase.This device balancing weight is polymorphic structure, it is necessary to specific customization, and cost increases, and affects its popularization and application.
(2) Chinese Patent Application No. 201310395741.X, describes a kind of super large tons static-load testing device, can complete the super-tonnage static test of 30000kN～50000kN rank.This device includes ballast platform assembly, for supporting support component of this ballast platform assembly and being located at the pile cover below ballast platform assembly and load applies and measures assembly, its structure is complicated, and technology requires height, implements difficulty big, long in time limit.
(3) Chinese Patent Application No. 200610012888.6, describe a kind of compound accumulated loading test method, adopt preloading pouring weight to do ballast stage support, and with ballast Platform Machinery be linked to be an entirety.The preloading pouring weight of bearing also becomes the loading of static test, decreases the loading on ballast platform and reduces the height of C.G. of overall loading, improve globality and the safety of ballast platform.The total counterweight of the method does not reduce, and the mechanical connection of ballast stage support and ballast platform can increase test period and cost.
Geotechnical Engineering foundation pile and foundation bearing capacity test for static load are due to its counterweight big (tens of tons are to thousands of tons of, and have increasing trend), and testing time and cost are mainly controlled by preloading counterweight.And tradition test for static load device is primarily present following problem:
1, existing counterweight mode is symmetrical counterweight, i.e. design load equal with counterweight load (perfect condition is consumed without load), and difficulty of test and cost increase with design load and improve；
2, the test for static load that counterweight tonnage is bigger is subject to various restriction (limiting in ballast platform girder bearing capacity, site condition, safety etc.), and it is very big that difficulty cannot be implemented or implement in scene, and technology requires height；
3, ballast platform support is higher to ground requirement for bearing capacity, if foundation bearing capacity is not enough, ballast platform easily tilts and even collapses, gently then test crash, heavy then cause device damage and casualties；
4, preloading center of gravity is high, and device stability in the large is poor, and reliability is low；
5, when counterweight is bigger, the preloading time is long, and human cost is high, and testing progress is slow.
Summary of the invention
The purpose of this utility model is to provide for the test for static load device of a kind of asymmetric counterweight, this device with counterweight load much smaller than the asymmetric principle of design load for core, can significantly reduce static load counterweight, reduction cost, quickening progress under the premise meeting testing requirement, increase engineering safety, the large-tonnage not easily implemented when especially for prior art or super-tonnage test for static load, be able to efficient, safe completing.
For reaching above-mentioned purpose, this utility model is implemented according to techniques below scheme:
A kind of test for static load device of asymmetric counterweight, including mainframe and be arranged on the counter-force amplifying device on mainframe and auxiliary device,
Described mainframe includes the four root cap beams constituting rectangular frame, and Guan Liang lower surface is provided with four support posts；The rectangular frame center that described Guan Liang is constituted is provided with jack spacing ring, and jack spacing ring is connected between two longer hat beams by jack spacing ring connecting rod；
Described counter-force amplifying device includes pressure tablet, front tension bar, front lever, back stay, rear lever, depression bar, pressure output board and pillar, described pillar is set to four and is symmetricly set on two shorter Guan Liang lower surfaces between two, two shorter Guan Liang bottoms are from top to bottom respectively equipped with front lever and rear lever, column upper section is point articulated with propping up of front lever, pillar bottom is point articulated with propping up of rear lever, front lever long arm end is hinged with front tension bar, front lever short arm end is hinged with back stay, rear lever long arm end is hinged with back stay, rear lever short arm end is hinged with depression bar, the two ends of pressure tablet are connected with front tension bar respectively, pressure output board two ends are connected with depression bar respectively, counter-force amplifying device adopts pillar as front, the support of rear balance pivot；
Described auxiliary device includes jack, ergometer, power transmission is honest, pile cover or bearing plate, datum line beam and displacement meter, wherein, pile cover is used for foundation pile static loading test, bearing plate is used for ground static test, pressure tablet upper surface it is placed on bottom described jack, jack is entangled by jack spacing ring, jack top flushes with hat back portion, power transmission is earnestly arranged on bearing plate or pile cover upper surface, ergometer is placed between pressure output board and power transmission earnestly, datum line beam is placed in ground, the pedestal of displacement meter is set up on datum line beam, the pointer of displacement meter is placed in bearing plate or pile cover upper surface.
Work process of the present utility model and principle be:
Laying pile cover (foundation pile static loading test) or bearing plate (ground static test), heart position places that power transmission is honest and ergometer wherein；
Further, reference for installation beam and displacement meter；
Further, lay mainframe and counter-force amplifying device, and by pressure output board center and the honest center alignment of power transmission；
Further, jack is put into jack spacing ring, and by jack bottom centre and pressure tablet center alignment；
Further, laying ballast platform secondary beam and backing plate and preloading constitutes actual counterweight, its actual counterweight amount is equal to designing counterweight amount divided by counter-force amplification system total magnification n；
Further, preloading enters official testing after completing, and when the ballast platform counter-force F of jack transmission is delivered to pressure output board by pressure tablet, has been amplified to nF, it is achieved asymmetric counterweight loads.
Compared with prior art, this utility model has the advantage that
One, the total magnification n of this utility model counter-force amplification system can determine according to engineering demand, site condition etc., significantly less test for static load counterweight；
Two, this utility model is widely used in Geotechnical Engineering, municipal works, house construction engineering etc., can effectively reduce cost, reduction of erection time, raising efficiency；
Three, this utility model reduces preloading height, reduces preloading center of gravity, increases ballast platform stability in the large, thus increasing testing reliability；
Four, this utility model is greatly decreased heap loading counterweight, reduces transport total amount, protects construction environment；
Five, this utility model reduces the requirement to foundation bearing capacity of the ballast platform support, increases Security of test；
Six, this utility model makes large-tonnage that prior art is difficult to carry out or super-tonnage test for static load be accomplished, reduce the technical difficulty of apparatus structure, solve the key problem of the asymmetric counterweight of engineering, this utility model clear principle, rational in infrastructure, significantly reduce test for static load counterweight, test for static load for completing various tonnage provides powerful guarantee, save engineering cost and time simultaneously, add safety.
Accompanying drawing explanation
Fig. 1 is this utility model embodiment front schematic view；
Fig. 2 is this utility model embodiment side schematic view；
Fig. 3 is this utility model embodiment schematic top plan view；
Fig. 4 is this utility model embodiment principle schematic；
In figure: 1. support post；2. Guan Liang；3. jack；4. pressure tablet；5. front tension bar；6. lever before；7. back stay；8. lever after；9. depression bar；10. pressure output board；11. ergometer；12. power transmission is honest；13. bearing plate；14. datum line beam；15. displacement meter；16. pillar；17. jack spacing ring；18. jack spacing ring connecting rod.
Detailed description of the invention
Below in conjunction with accompanying drawing and specific embodiment thereof, this utility model being further described, illustrative examples and explanation in this utility model are used for explaining this utility model, but are not intended as restriction of the present utility model.
As Figure 1-3, the test for static load device of a kind of asymmetric counterweight of the present embodiment, for ground static test, including mainframe and be arranged on the counter-force amplifying device on mainframe and auxiliary device,
Wherein, mainframe includes the four root cap beams 2 constituting rectangular frame, and hat beam 2 lower surface is provided with four support posts 1；The rectangular frame center that described Guan Liang is constituted is provided with jack spacing ring 17, and jack spacing ring 17 is connected between two longer hat beams 2 by jack spacing ring connecting rod 18；
Described counter-force amplifying device includes pressure tablet 4, front tension bar 5, front lever 6, back stay 7, rear lever 8, depression bar 9, pressure output board 10 and pillar 16, described pillar 16 is set to four and is symmetricly set on two shorter hat beam 2 lower surfaces between two, two shorter hat beam 2 bottoms are from top to bottom respectively equipped with front lever 6 and rear lever 8, pillar 16 top is point articulated with propping up of front lever 6, pillar 16 bottom is point articulated with propping up of rear lever 8, front lever 6 long arm end is hinged with front tension bar 5, front lever 6 galianconism end is hinged with back stay 7, rear lever 8 long arm end is hinged with back stay 7, rear lever 8 galianconism end is hinged with depression bar 9, the two ends of pressure tablet 4 are connected with front tension bar 5 respectively, pressure output board 10 two ends are connected with depression bar 9 respectively；
Described auxiliary device includes that jack 3, ergometer 11, power transmission be honest 12, bearing plate 13, datum line beam 14 and displacement meter 15, pressure tablet 4 upper surface it is placed on bottom described jack 3, jack 3 is entangled by jack spacing ring 17, jack 3 top flushes with hat beam 2 top, power transmission honest 12 is arranged on bearing plate 13 upper surface, ergometer 11 is placed between pressure output board 10 and power transmission honest 12, datum line beam 14 is placed in ground, the pedestal of displacement meter 15 is set up on datum line beam 14, and the pointer of displacement meter 15 is placed in bearing plate 13 upper surface.
As shown in Figure 4, when carrying out ground static test, first laying bearing plate 13, power transmission honest 12 and ergometer 11 are placed in heart position wherein；
Further, reference for installation beam 14 and displacement meter 15；
Further, lay mainframe and counter-force amplifying device, and by pressure output board 10 center and honest 12 center alignment of power transmission；
Further, jack 3 is put into jack spacing ring 17, and by jack 3 bottom centre and pressure tablet 10 center alignment；
Further, laying ballast platform secondary beam and backing plate and preloading constitutes actual counterweight, its actual counterweight amount is equal to designing counterweight amount divided by counter-force amplification system total magnification n；
Further, preloading enters official testing after completing, and when the ballast platform counter-force F of jack transmission is delivered to pressure output board by pressure tablet, has been amplified to nF, it is achieved asymmetric counterweight loads.
More than only giving the specific embodiment of ground static-load testing device, foundation pile static loading test embodiment also ibid, repeats no more.
The technical solution of the utility model is not limited to the restriction of above-mentioned specific embodiment, every technology deformation made according to the technical solution of the utility model, each falls within protection domain of the present utility model.
Claims (1)
1. a test for static load device for asymmetric counterweight, including mainframe and be arranged on the counter-force amplifying device on mainframe and auxiliary device, it is characterised in that:
Described mainframe includes the four root cap beams constituting rectangular frame, and Guan Liang lower surface is provided with four support posts；The rectangular frame center that described Guan Liang is constituted is provided with jack spacing ring, and jack spacing ring is connected between two longer hat beams by jack spacing ring connecting rod；
Described counter-force amplifying device includes pressure tablet, front tension bar, front lever, back stay, rear lever, depression bar, pressure output board and pillar, described pillar is set to four and is symmetricly set on two shorter Guan Liang lower surfaces between two, two shorter Guan Liang bottoms are from top to bottom respectively equipped with front lever and rear lever, column upper section is point articulated with propping up of front lever, pillar bottom is point articulated with propping up of rear lever, front lever long arm end is hinged with front tension bar, front lever short arm end is hinged with back stay, rear lever long arm end is hinged with back stay, rear lever short arm end is hinged with depression bar, the two ends of pressure tablet are connected with front tension bar respectively, pressure output board two ends are connected with depression bar respectively；
Described auxiliary device includes that jack, ergometer, power transmission be honest, pile cover or bearing plate, datum line beam and displacement meter, pressure tablet upper surface it is placed on bottom described jack, jack is entangled by jack spacing ring, jack top flushes with hat back portion, power transmission is earnestly arranged on bearing plate or pile cover upper surface, ergometer is placed between pressure output board and power transmission earnestly, datum line beam is placed in ground, the pedestal of displacement meter is set up on datum line beam, and the pointer of displacement meter is placed in bearing plate or pile cover upper surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620135417.3U CN205387726U (en) | 2016-02-23 | 2016-02-23 | Static load testing arrangement of asymmetric counter weight |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620135417.3U CN205387726U (en) | 2016-02-23 | 2016-02-23 | Static load testing arrangement of asymmetric counter weight |
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| Publication Number | Publication Date |
|---|---|
| CN205387726U true CN205387726U (en) | 2016-07-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620135417.3U Expired - Fee Related CN205387726U (en) | 2016-02-23 | 2016-02-23 | Static load testing arrangement of asymmetric counter weight |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105544624A (en) * | 2016-02-23 | 2016-05-04 | 周霜林 | Static load test device for asymmetric counter weight |
-
2016
- 2016-02-23 CN CN201620135417.3U patent/CN205387726U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105544624A (en) * | 2016-02-23 | 2016-05-04 | 周霜林 | Static load test device for asymmetric counter weight |
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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: 20160720 Termination date: 20180223 |
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| CF01 | Termination of patent right due to non-payment of annual fee |