CN106153443A - A kind of loading counter weight device and loading method thereof - Google Patents
A kind of loading counter weight device and loading method thereof Download PDFInfo
- Publication number
- CN106153443A CN106153443A CN201610693380.0A CN201610693380A CN106153443A CN 106153443 A CN106153443 A CN 106153443A CN 201610693380 A CN201610693380 A CN 201610693380A CN 106153443 A CN106153443 A CN 106153443A
- Authority
- CN
- China
- Prior art keywords
- test
- cylinder
- ejection device
- load
- counter weight
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
Abstract
The a kind of of the present invention loads counter weight device and loading method thereof, relates to the Test And Check Technology field of prefabricated components, for existing load test method restricted application, relies on fixing test site, causes work efficiency to reduce, the problem that experimentation cost increases.Including an armored concrete ballast reaction frame, it, by pair of columns that is vertical and that be oppositely arranged, is connected to some binders of cylinder bottom, across and be fixed in the code beam on cylinder top and be fixed in bottom yard beam and form with the auxiliary beam of cartridges parallel；And it is fixed in the some brackets outside cylinder.Loading method: be set up on buttress by test beam, makes test beam between two cylinders of armored concrete ballast reaction frame；Reverse ejection device is held between test beam and auxiliary beam, and makes to be reserved with between reverse ejection device and auxiliary beam a gap；Implementing to load to test beam by reverse ejection device, the bracket in cylinder both sides loads counterweight and also records the data that reverse ejection device records to peak load, sight side.
Description
Technical field
The present invention relates to the Test And Check Technology field of prefabricated components, load counter weight device and loading thereof particularly to one
Method.
Background technology
Along with science of bridge building standardization, the development of batch production, the testing inspection project of precast beam gets more and more；Its
In, load test is one of important step of bridge static loading test, and load test can make precast beam enter the shape that works normally
State so that it is malformation is stable with load relation, thus checks the design and construction quality of bridge.
At present, conventional load test method has direct accumulation load method and anchoring pile is counter pushes up method, is analyzed as follows:
Directly accumulation load method is the most frequently used, generally uses steel ingot or concrete block is directly stacked on precast beam, and utilize very heavy
Anti-top, top precast beam loads；The method is only applicable to load the prefabricated components that counter-force is less, when counter-force is bigger, the steel of counterweight
Ingot or concrete block are banked up the most but also high, should not operate the most dangerous；And, steel ingot and concrete block are difficult to obtain, as
Make specially or lease, load test cost can be caused to raise.
Anchoring pile is counter pushes up the suitability of method relatively extensively, safe and reliable, but needs to make specially anchoring pile, it is desirable to test site is fixed,
During load test, need to be transported to precast beam specify test site just can carry out load test, not only reduce work efficiency,
And add experimentation cost.
It was verified that reasonably select loading equipemtn and loading method, for smoothly completing experiment work and guarantee test
Quality, has a very big impact.
Summary of the invention
For existing load test method restricted application, rely on fixing test site, cause work efficiency to drop
Low, that experimentation cost increases problem, it is an object of the invention to provide a kind of loading counter weight device and loading method thereof, has expanded
Loading the scope of application of counter-force test so that load test is more safe and reliable, the selection of test site is more flexible, and reduces
The material resources of load test and human cost.
The present invention solves the loading counter weight device that its technical problem is used, for test beam is carried out load test, and bag
Including an armored concrete reaction frame, it is by pair of columns that is vertical and that be oppositely arranged, if being connected to the responsibility of described cylinder bottom
Beam, across and be fixed in the code beam on cylinder top described in a pair, and be fixed in bottom described code beam and with described cartridges parallel
Auxiliary beam forms；And it is fixed in the some brackets outside cylinder described in a pair.
Preferably, described cylinder top is provided with some embedded bars, and the anchored end of described embedded bar is embedded in described post
Internal, the free end of described embedded bar stretches out described cylinder and runs through the through hole of correspondence on described code beam, and described pre-buried steel
The top of muscle is locked by securing member.
Preferably, described embedded bar anchored end in described cylinder is T-shaped or L-shaped.
Preferably, the cross section of described bracket is L-shaped, and some described bracket symmetries are fixed in the outside of described cylinder, and
The vertical portion of described bracket is located remotely from one end of described armored concrete reaction frame so that described bracket is common with described cylinder
Constitute and choose arm for place counterweight.
Preferably, longitudinally superimposed some described code beam connects into one by being fixed in the batten plate of putting more energy into of described code beam sides
Body.
Preferably, described armored concrete reaction frame uses the strength grade concrete more than or equal to C30 to make.
Preferably, also include the reverse ejection device being held on described test beam top, described reverse ejection device include jack and
It is installed on the pressure transducer on described jack top.
It addition, present invention also offers a kind of loading method loading counter weight device, step is as follows:
One, lift described test beam and be set up on buttress, and making described test beam be positioned at described armored concrete counter-force
Between two cylinders of frame；
Two, reverse ejection device is held between described test beam and described auxiliary beam, and makes described reverse ejection device auxiliary with described
A gap it is reserved with between beam；
Three, start described reverse ejection device, implement to load, at described cylinder two to described test beam by described reverse ejection device
Load counterweight on the described bracket of side and also record the number that under corresponding load, described reverse ejection device records to peak load, sight side
According to.
Preferably, in described step 2, described reverse ejection device includes jack and is installed on the pressure on described jack top
It is reserved with the gap more than or equal to 60mm between force transducer, and described pressure transducer and described auxiliary beam.
Preferably, in described step 3, described counterweight uses the reinforcing bar of more than diameter 20mm, and described reinforcing bar binding
Some bundles are become to be held on described bracket.
Effect of the invention is that:
One, the loading counter weight device of the present invention, as the armored concrete reaction frame of agent structure by vertically and relatively setting
The pair of columns put and the some binders being connected to cylinder bottom composition U-frame frame, code beam and be located at auxiliary beam bottom it across
And it is fixed in the top of pair of columns；Some brackets for supporting counterweight are fixed in the outside of pair of columns；Load examination
When testing, the center of test beam being placed in the middle part of the groove that binder encloses with cylinder, reverse ejection device is positioned over auxiliary beam and test
Between beam, and the anti-armored concrete reaction frame that pushes up of reverse ejection device is utilized to realize the purpose to test beam loading；This loading counterweight fills
Put deadweight and the counterweight of heap object carrier utilizing armored concrete ballast reaction frame, increase the load loading counter weight device,
Expand the scope of application loading counter-force test；Owing to counterweight derives from the deadweight of armored concrete reaction frame and joining near ground
Weight body, it is to avoid when traditional reaction frame carries out load test, in bridge high-altitude preloading counterweight and the operation wind that brings
Danger so that load test is more safe and reliable；And, this loading counter weight device and ground are without anchor connection, the choosing of test site
Select more flexible, the most more convenient to operate, reduce material resources and the human cost of load test.
Two, the loading method loading counter weight device of the present invention, is first set up in armored concrete reaction frame by test beam
Two cylinders between, then reverse ejection device is held between test beam and auxiliary beam, then by reverse ejection device, test beam is implemented
Load, see side and record the data that under corresponding load, reverse ejection device records, having carried out the counter-force load test of test beam；This adds
In support method, the loading of counterweight is without upper air installing, it is to avoid high-altitude preloading counterweight in bridge and the behaviour that brings
Make risk so that load test is more safe and reliable, and more convenient to operate, and the material resources and the manpower that reduce load test become
This.
Accompanying drawing explanation
Fig. 1 is the structural representation that one embodiment of the invention loads counter weight device；
Fig. 2 be Fig. 1 B to structural representation；
Fig. 3 is the A-A sectional view of Fig. 2.
Detailed description of the invention
A kind of loading counter weight device and the loading method thereof that propose the present invention below in conjunction with the drawings and specific embodiments are made
Further describe.According to description below and claims, advantages and features of the invention will be apparent from.Below will be by
Cited embodiment combines accompanying drawing, describes technology contents and the feature of the present invention in detail.Need to additionally illustrate, accompanying drawing is all adopted
By the form simplified very much and all use non-ratio accurately, only in order to convenient, aid in illustrating the embodiment of the present invention lucidly
Purpose.For sake of convenience, described below " on ", the upper and lower direction of D score and accompanying drawing consistent, but this can not become this
The restriction of bright technical scheme.
Embodiment one: combine Fig. 1 to Fig. 3 and the loading counter weight device 100 of the present invention is described, for being held on both ends horizontal
Test beam 1 on buttress 2 carries out load test, and above-mentioned loading counter weight device 100 includes an armored concrete reaction frame 10, it by
Pair of columns 11 that is vertical and that be oppositely arranged, is connected to some binders 12 of cylinder 11 bottom, across and be fixed in pair of columns
The code beam 20 on 11 tops, and it is fixed in bottom yard beam 20 and the auxiliary beam 30 parallel with cylinder 11 forms；And it is fixed in a coupled columns
Some brackets 40 outside body 11.
Above-mentioned loading counter weight device 100, as the armored concrete reaction frame 10 of agent structure by vertical and be oppositely arranged
Pair of columns 11 and be connected to some binders 12 of cylinder 11 bottom and form U-frame frame, code beam 20 and be located at bottom it auxiliary
Beam 30 across and be fixed in the top of pair of columns 11；Some brackets 40 for supporting counterweight are fixed in pair of columns 11
Outside；During load test, the center of test beam 1 is placed in the middle part of the groove that binder 12 encloses with cylinder 11, counter pushes up dress
Storing is placed between auxiliary beam 30 and test beam 1, and utilizes the anti-armored concrete reaction frame 10 that pushes up of reverse ejection device to realize test beam 1
The purpose loaded；This loading counter weight device 100 utilizes deadweight and the counterweight of heap object carrier of armored concrete reaction frame 10, increases
The big load loading counter weight device 100, expands the scope of application loading counter-force test；Owing to counterweight derives from reinforced concrete
Soil reaction frame 41 is conducted oneself with dignity and near the counterweight on ground, it is to avoid when traditional reaction frame carries out load test, high in bridge
Empty preloading counterweight and the operational risk brought so that load test is more safe and reliable；And, this loading counter weight device
100 with ground without anchor connection, the selection of test site is more flexible, the most more convenient to operate, reduces load test
Material resources and human cost；The loading counter weight device 100 of the present invention is mainly used in prefabricated components are carried out load test.
As in figure 2 it is shown, cylinder 11 top is provided with some embedded bar 11a, the anchored end of embedded bar 11a is embedded in cylinder
In 11, the free end of embedded bar 11a stretches out cylinder 11 and runs through the through hole of correspondence on yard beam 20, and the top of embedded bar 11a
End is locked by securing member 11b；The preferred bearing pin of securing member securing member 11b in the present embodiment, certainly, is the most only one and shows
Example, securing member 11b is not limited thereto；The code beam 20 being across between cylinder 11 by the embedded bar 11a in cylinder 11 and
Securing member 11b is removably attachable on cylinder 11, not only easy accessibility, and is conveniently adjusted the quantity of piling up of yard beam 20, side
Just self load of armored concrete reaction frame 10 is regulated.
Preferably, above-mentioned embedded bar 11a anchored end in cylinder 11 is T-shaped or L-shaped, the said structure shape of anchored end
Formula, is more beneficial in the xoncrete structure that anchored end is firmly secured to cylinder 11.
As in figure 2 it is shown, bracket 40 cross section is L-shaped, some bracket 40 symmetries are fixed in the outside of cylinder 11, and bracket 40
Vertical portion be located remotely from one end of armored concrete reaction frame 10 so that bracket 40 and cylinder 11 collectively form joins for placing
Weight body 60 choose arm.Being symmetrical arranged of bracket 40, the both sides just obtaining armored concrete reaction frame 10 have uniform load, vertically
Portion is it can be avoided that counterweight skids off bracket 40, to ensure the safety of operator.
Please continue to refer to Fig. 2, longitudinally superimposed some yards of beams 20 connect by being fixed in the batten plate 21 of putting more energy into of yard beam 20 side
It is connected into one so that the lifting of code beam 20 is convenient, improves work efficiency.
Preferably, the concrete that armored concrete reaction frame 10 uses strength grade to be more than or equal to C30 is made, to ensure steel
Reinforced concrete reaction frame 10 has enough structural strengths.
Embodiment two: unlike embodiment one, the loading counter weight device 100 of the present embodiment also includes being held on test
The reverse ejection device 50 on beam 1 top, above-mentioned reverse ejection device 50 includes jack 52 and is installed on the pressure sensing on very heavy 52 tops, top
Device 51.Lifting jack 52 holds out against auxiliary beam 30, and then realizes the loading to test beam 1, jack 52 and pressure in the present embodiment
Sensor 51 all can be bought by commercial channel.
Embodiment three: combine Fig. 1 to Fig. 3 and illustrate that the present invention loads the loading method of counter weight device, specifically comprise the following steps that
One, lift test beam 1 and be set up on the buttress 2 being positioned at test beam 1 both sides, and it is mixed to make test beam 1 be positioned at reinforcing bar
Between two cylinders 11 of solidifying soil power frame 10；
Two, reverse ejection device 50 is held between test beam 1 and auxiliary beam 30, and makes between reverse ejection device 50 and auxiliary beam 30 pre-
Leave a gap；
Three, start reverse ejection device 50, implement to load, at the bracket of cylinder 11 both sides to test beam 1 by reverse ejection device 50
40 last or multistage loadings counterweight 60 to peak loads, see side and record the number that under corresponding load, reverse ejection device 50 records
According to.
The loading method of above-mentioned loading counter weight device, is first set up in the two of armored concrete reaction frame 10 by test beam 1
Between individual cylinder 11, then reverse ejection device 50 is held between test beam 1 and auxiliary beam 30, then by reverse ejection device 50 to test beam
1 implements to load, and sees side and records the data that under corresponding load, reverse ejection device 50 records, and the counter-force having carried out test beam 1 loads
Test；In this loading method, the loading of counterweight 60 is without upper air installing, it is to avoid high-altitude preloading counterweight in bridge
60 and the operational risk brought so that load test is more safe and reliable, and more convenient to operate, reduces load test
Material resources and human cost.
In above-mentioned steps two, reverse ejection device 50 includes jack 52 and is installed on the pressure transducer on jack 52 top
Being reserved with the gap more than or equal to 60mm between 51, and pressure transducer 51 and auxiliary beam 30, this gap is arranged, and has both been easy to observation
The change in displacement of pressure transducer 51, again it can be avoided that jack 52 start promote time, because of both gaps too small, pressure sensing
Device 51 clashes into suddenly with auxiliary beam 30 in the case of moment rises and damages.
In above-mentioned steps three, counterweight 60 uses the reinforcing bar of more than diameter 20mm, and reinforcing bar binding becomes some bundles to shelve
On bracket 40, the not only convenient load that calculates, and it is prone to lifting；Owing to counterweight 60 has drawn from what each construction site was commonly used
Reinforcing bar so that draw materials convenient, compares traditional steel ingot and concrete block, and the loading method of the present embodiment reduces to be tested into
This.
More preferably, for avoiding test beam 1 to be damaged because of pressure in load test, in above-mentioned steps two, also can be
Shelving auxiliary beam 1 on test beam 1, the most auxiliary beam 1 is arranged between test beam 1 and jack 52.
Foregoing description is only the description to present pre-ferred embodiments, not any restriction to the scope of the invention, this
Any change that the those of ordinary skill in bright field does according to the disclosure above content, modification, belong to the protection of claims
Scope.
Claims (10)
1. load a counter weight device, for test beam is carried out load test, it is characterised in that including:
One armored concrete reaction frame, it, by pair of columns that is vertical and that be oppositely arranged, is connected to the some of described cylinder bottom
Binder, across and be fixed in the code beam on cylinder top described in a pair, and be fixed in bottom described code beam and with described cartridges parallel
Auxiliary beam composition；
And it is fixed in the some brackets outside cylinder described in a pair.
Loading counter weight device the most according to claim 1, it is characterised in that: described cylinder top is provided with some pre-buried steels
Muscle, the anchored end of described embedded bar is embedded in described cylinder, and the free end of described embedded bar stretches out described cylinder and passes through
Wear through hole corresponding on described code beam, and the top of described embedded bar is locked by securing member.
Loading counter weight device the most according to claim 2, it is characterised in that: described embedded bar anchor in described cylinder
Fixed end is T-shaped or L-shaped.
Loading counter weight device the most according to claim 1, it is characterised in that: the cross section of described bracket is L-shaped, Ruo Gansuo
State bracket symmetry and be fixed in the outside of described cylinder, and the vertical portion of described bracket is located remotely from described armored concrete reaction frame
One end so that described bracket and described cylinder collectively form and choose arm for place counterweight.
Loading counter weight device the most according to claim 1, it is characterised in that: longitudinally superimposed some described code beam is by solid
The batten plate of putting more energy into being connected on described code beam sides links into an integrated entity.
Loading counter weight device the most according to claim 1, it is characterised in that: described armored concrete reaction frame uses intensity
The grade concrete more than or equal to C30 is made.
7. according to the loading counter weight device described in any one of claim 1 to 6, it is characterised in that: also include being held on described examination
Testing the reverse ejection device of back end, described reverse ejection device includes jack and is installed on the pressure transducer on described jack top.
8. using the loading method loading counter weight device as described in any one of claim 1 to 7, step is as follows:
One, lift described test beam and be set up on buttress, making described test beam be positioned at the two of described armored concrete reaction frame
Between individual cylinder；
Two, reverse ejection device is held between described test beam and described auxiliary beam, and make described reverse ejection device and described auxiliary beam it
Between be reserved with a gap；
Three, start described reverse ejection device, implement to load, in described cylinder both sides to described test beam by described reverse ejection device
Load counterweight on described bracket and also record the data that under corresponding load, described reverse ejection device records to peak load, sight side.
Loading method the most according to claim 8, it is characterised in that: in described step 2, described reverse ejection device includes thousand
Jin pushes up and is installed on the pressure transducer on described jack top, and is reserved with big between described pressure transducer and described auxiliary beam
In the gap equal to 60mm.
Loading method the most according to claim 8 or claim 9, it is characterised in that: in described step 3, described counterweight is adopted
With the reinforcing bar of more than diameter 20mm, and described reinforcing bar binding becomes some bundles to be held on described bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610693380.0A CN106153443A (en) | 2016-08-19 | 2016-08-19 | A kind of loading counter weight device and loading method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610693380.0A CN106153443A (en) | 2016-08-19 | 2016-08-19 | A kind of loading counter weight device and loading method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106153443A true CN106153443A (en) | 2016-11-23 |
Family
ID=57342013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610693380.0A Pending CN106153443A (en) | 2016-08-19 | 2016-08-19 | A kind of loading counter weight device and loading method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106153443A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107255591A (en) * | 2017-05-31 | 2017-10-17 | 大连船舶重工集团有限公司 | A kind of test method for testing intensity of headframe |
| CN111650047A (en) * | 2020-07-09 | 2020-09-11 | 中国水利水电科学研究院 | Large-tonnage soil load test vertical counter-force loading device and loading method thereof |
| CN113356080A (en) * | 2021-07-10 | 2021-09-07 | 江苏百崮钢结构工程有限公司 | Middle transverse horizontal reverse jacking device for main tie beam of steel arch bridge |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2589965Y (en) * | 2002-12-24 | 2003-12-03 | 中国科学院武汉岩土力学研究所 | Reaction rack equipment for precast beam (board) static load test |
| CN200999461Y (en) * | 2007-01-17 | 2008-01-02 | 上海市第一建筑有限公司 | Suspended counterweight auto-inverting supporting means for integral steel platform system |
| CN101560779A (en) * | 2009-05-13 | 2009-10-21 | 中冶成工建设有限公司 | Foundation pile static test loading counterforce test method and weight boxes used by same |
| CN201588301U (en) * | 2009-12-24 | 2010-09-22 | 贵阳铝镁设计研究院 | Steel corbel support structure on I-shaped concrete side |
| CN203924147U (en) * | 2014-05-30 | 2014-11-05 | 北京东方新星石化工程股份有限公司 | The compound counterforce device of anchoring pile ballast |
| CN104280297A (en) * | 2014-09-23 | 2015-01-14 | 同济大学 | Counterforce beam loading device and loading method for static load test of bridge beam body |
| CN206038412U (en) * | 2016-08-19 | 2017-03-22 | 上海市政工程设计研究总院（集团）有限公司 | Loading counter weight device |
-
2016
- 2016-08-19 CN CN201610693380.0A patent/CN106153443A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2589965Y (en) * | 2002-12-24 | 2003-12-03 | 中国科学院武汉岩土力学研究所 | Reaction rack equipment for precast beam (board) static load test |
| CN200999461Y (en) * | 2007-01-17 | 2008-01-02 | 上海市第一建筑有限公司 | Suspended counterweight auto-inverting supporting means for integral steel platform system |
| CN101560779A (en) * | 2009-05-13 | 2009-10-21 | 中冶成工建设有限公司 | Foundation pile static test loading counterforce test method and weight boxes used by same |
| CN201588301U (en) * | 2009-12-24 | 2010-09-22 | 贵阳铝镁设计研究院 | Steel corbel support structure on I-shaped concrete side |
| CN203924147U (en) * | 2014-05-30 | 2014-11-05 | 北京东方新星石化工程股份有限公司 | The compound counterforce device of anchoring pile ballast |
| CN104280297A (en) * | 2014-09-23 | 2015-01-14 | 同济大学 | Counterforce beam loading device and loading method for static load test of bridge beam body |
| CN206038412U (en) * | 2016-08-19 | 2017-03-22 | 上海市政工程设计研究总院（集团）有限公司 | Loading counter weight device |
Non-Patent Citations (2)
| Title |
|---|
| 张伟平;刘伟;顾祥林;黄庆华;: "基于二次杠杆作用的受弯构件持续加载装置", 实验室研究与探索, no. 10 * |
| 韩洪泽;安瑞晶;赵乐;: "钢筋混凝土桥梁破坏性试验合理加载方式的探讨", 公路交通科技(应用技术版), no. 12 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107255591A (en) * | 2017-05-31 | 2017-10-17 | 大连船舶重工集团有限公司 | A kind of test method for testing intensity of headframe |
| CN111650047A (en) * | 2020-07-09 | 2020-09-11 | 中国水利水电科学研究院 | Large-tonnage soil load test vertical counter-force loading device and loading method thereof |
| CN111650047B (en) * | 2020-07-09 | 2020-12-22 | 中国水利水电科学研究院 | Large-tonnage soil load test vertical counter-force loading device and loading method thereof |
| CN113356080A (en) * | 2021-07-10 | 2021-09-07 | 江苏百崮钢结构工程有限公司 | Middle transverse horizontal reverse jacking device for main tie beam of steel arch bridge |
| CN113356080B (en) * | 2021-07-10 | 2022-09-20 | 江苏百崮钢结构工程有限公司 | Middle transverse horizontal reverse jacking device for main tie beam of steel arch bridge |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3946601A (en) | Method of load testing foundations | |
| CN109853512A (en) | Automatic detachable heavy dynamic penetration instrument | |
| CN106153327B (en) | A kind of TBM inclined shaft shield duct piece load testing machine and test method | |
| CN204255832U (en) | Crab-bolt pullout tests charger | |
| CN101560779A (en) | Foundation pile static test loading counterforce test method and weight boxes used by same | |
| CN106153443A (en) | A kind of loading counter weight device and loading method thereof | |
| CN100580193C (en) | Foundation structure of steel tower | |
| CN104328810A (en) | Improved method for detecting bearing capacity of precast pipe-pile single-pile foundation | |
| KR200385683Y1 (en) | The test apparatus of static loading for concrete pile | |
| CA3150000C (en) | Top loaded bidirectional testing system and method of using the same | |
| CN206829208U (en) | A kind of single pile pullout tests system using prefabricated fixation kit | |
| CN206038412U (en) | Loading counter weight device | |
| CN201110804Y (en) | Multifunctional experimental bench | |
| CN206095814U (en) | Monospar static test loading system | |
| CN205676784U (en) | Bracket reverse drawing loads prepressing device | |
| CN206143824U (en) | Pile foundation static test loading system | |
| CN202543984U (en) | Reaction force device with combination of anchor bars and steel beams | |
| CN205329738U (en) | Novel umbelliform ground bearing capacity detecting device | |
| CN209523236U (en) | A kind of anchored pile-testing method load test Quick Connect Kit | |
| CN208219720U (en) | A kind of building pile foundation dead-load detection device | |
| CN210140777U (en) | Bracket for construction of continuous rigid frame box girder | |
| CN204758266U (en) | U type inslot, external pressure strength detection device | |
| CN102535532A (en) | Anchor rib-steel beam combined counter-force device | |
| CN203855879U (en) | Novel high-pier turnout continuous beam support | |
| CN209669947U (en) | A kind of foldable water tank and load test device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |