CN205426675U - Dual -purpose test bench of bending resistance resistance to plucking of section of jurisdiction - Google Patents
Dual -purpose test bench of bending resistance resistance to plucking of section of jurisdiction Download PDFInfo
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- CN205426675U CN205426675U CN201520647711.8U CN201520647711U CN205426675U CN 205426675 U CN205426675 U CN 205426675U CN 201520647711 U CN201520647711 U CN 201520647711U CN 205426675 U CN205426675 U CN 205426675U
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Abstract
The utility model relates to a dual -purpose test bench of bending resistance resistance to plucking of section of jurisdiction, including base, slip dolly, bearing diagonal, vertical support, load distribution roof beam, load reaction frame and hydraulic jack, the up end installation resistance to plucking support of load reaction frame, two load supports are installed to the plane symmetry of going to the bottom of load reaction frame, the section of jurisdiction support of the vertical setting of one or more is installed respectively to the left and right sides of base upper surface, and this a plurality of sections of jurisdiction support all is located the trial zone intra -area. The advantage of this equipment is that to accomplish the section of jurisdiction bending resistance and the resistance to plucking of different width, thickness, arc length by same equipment experimental, easy and simple to handle, only needs an overhead traveling crane and two operating personnel to accomplish, and the experiment that two original equipment just can go on is accomplished to an equipment, and does not receive the restriction of section of jurisdiction model, and doing the adjustment slightly, can to be applicable to the section of jurisdiction of arbitrary diameter, thickness, width experimental, has practiced thrift experimentation cost greatly.
Description
Technical field
This utility model relates to the detection equipment of shield-tunneling construction equipment, the dual-purpose testing stand of bending resistance resistance to plucking of a kind of section of jurisdiction.
Background technology
Major part city underground and railway tunnel construction are all to use shield method at present, carry out lining cutting with prefabricated pipe section.The quality testing of section of jurisdiction is particularly important, is to ensure that the key link of tunnel quality.And the bending resistance of section of jurisdiction, pullout tests are to check that section of jurisdiction and Grouting Pipe bear whether extraneous pressure can reach the test that design requires.Only having section of jurisdiction beam test platform, the pullout tests platform of 1.2 meters wide in the market, owing to it is two independent equipment, the most not only buying expenses is high, and two equipment occupation space is big, experimentation cost is high, efficiency is low, be section of jurisdiction factory common problem.
Summary of the invention
The purpose of this utility model is to overcome the defect of prior art, it is provided that a kind of reasonable in design, simple to operate, operate steadily, the dual-purpose testing stand of bending resistance resistance to plucking of section of jurisdiction bending resistance and pullout tests being integrated in one.
The purpose of this utility model is realized by techniques below means:
A kind of bending resistance resistance to plucking dual-purpose testing stand of section of jurisdiction, including base, sliding machine, bearing diagonal, vertical rack, load distribution beam, load reaction frame and hydraulic jack, the each side guiding of base upper surface is slidably installed two sliding machines, the sliding machine of the left and right sides is symmetrical arranged, and forms pilot region between four sliding machines；Before and after base, the middle part of both sides is respectively mounted a vertical rack, is respectively mounted a bearing diagonal between left side and right side and the base of each vertical rack upper end；Common installation load distribution beam between two vertical racks, the load reaction frame that is slidably installed is guided in this load distribution beam, hydraulic jack is placed in load distribution beam, the plunger rod of this hydraulic jack connects load reaction frame, it is characterized in that: resistance to plucking bearing is installed in the upper surface of load reaction frame, and the bottom surface of load reaction frame is symmetrically installed two load bearings；The left and right sides of base upper surface is respectively mounted one or more section of jurisdiction support being vertically arranged, and the plurality of section of jurisdiction support is respectively positioned in pilot region.
And, described resistance to plucking bearing arranges drawing screw rod, this drawing screw rod uses high-strength screw rod, and screw thread effectively screws up length not less than 55mm.
And, described hydraulic jack is feed-through hydraulic jack.
Advantage of the present utility model and good effect be:
1, this testing stand is respectively mounted resistance to plucking bearing and load bearing in the upper surface of load reaction frame and bottom surface, beam test or pullout tests can be carried out by adjusting the installation direction of load reaction frame, therefore use testing stand can complete bending resistance resistance to plucking and go out two tests, thus save and take up room, reduce experimentation cost.
2, this testing stand is easy and simple to handle, it is only necessary to two operator and a crane gear can complete test, and work efficiency is greatly improved.
3, this testing stand uses hydraulic jack to provide load as power source, it is ensured that test run is steady, improves the accuracy of result of the test.
4, pressure is sent to section of jurisdiction by load distribution beam by this testing stand, contacts with section of jurisdiction with resistance to plucking bearing with load bearing, can realize loading arbitrary diameter section of jurisdiction, damage section of jurisdiction zero.
5, this testing stand is provided with the sliding machine of four displacements on base, only need to move that little truck position can carry different arc, the section of jurisdiction of radius is tested, and adds the scope of application of this equipment.
What 6, the technical method that this utility model provides can be easy, efficient, safe completes section of jurisdiction bending resistance resistance to plucking two test, has practical value, and preparation technology is simple, and cost is relatively low.
Accompanying drawing explanation
Fig. 1 is front view of the present utility model (bending resistance state)；
Fig. 2 is the top view of Fig. 1；
Fig. 3 is the left view of Fig. 1；
Fig. 4 is front view of the present utility model (resistance to plucking state)；
Fig. 5 is the top view of Fig. 4；
Fig. 6 is the left view of Fig. 4.
Detailed description of the invention
Describe embodiment of the present utility model below in conjunction with the accompanying drawings in detail；It should be noted that the present embodiment is narrative, it not determinate, it is impossible to limit protection domain of the present utility model with this.
A kind of bending resistance resistance to plucking dual-purpose testing stand of section of jurisdiction, including base 3, sliding machine 1, bearing diagonal 9, vertical rack 10, load distribution beam 6, load reaction frame 5 and hydraulic jack 7, the each side guiding of base upper surface is slidably installed two sliding machines, the sliding machine of the left and right sides is symmetrical arranged, and forms pilot region between four sliding machines.Before and after base, the middle part of both sides is respectively mounted a vertical rack, is respectively mounted a bearing diagonal between left side and right side and the base of each vertical rack upper end.Common installation load distribution beam between two vertical racks, the load reaction frame that is slidably installed is guided in this load distribution beam, hydraulic jack is placed in load distribution beam loading, and hydraulic jack is the feed-through hydraulic jack of 1100KN, and the plunger rod of hydraulic jack connects load reaction frame.Dial gauge is arranged in monitoring point on request, and employing precision is 0.01mm, range is in the middle part of seven pieces of centimeter check sections of jurisdiction of 0-30mm, monitoring point, the horizontally and vertically displacement of termination.
Innovative point of the present utility model is: resistance to plucking bearing 4 is installed in the upper surface of load reaction frame, and resistance to plucking bearing arranges drawing screw rod 12, and this drawing screw rod uses high-strength screw rod, and the length that effectively screws up of screw thread is not less than 55mm.The bottom surface of load reaction frame is symmetrically installed two load bearings 8, and the bottom surface of this load bearing makes the arc or inclined-plane matched with surface, section of jurisdiction.The left and right sides of base upper surface is respectively mounted one or more section of jurisdiction support 11 being vertically arranged, and the plurality of section of jurisdiction support is respectively positioned in pilot region.
The agent structure of this testing stand is welded by angle steel, I-steel, such as base, vertical rack, load distribution beam, load reaction frame etc..
Using method of the present utility model is:
1, beam test
(1) extrados two ends upward, section of jurisdiction 2 are put on sliding machine；
(2) load reaction frame, hydraulic jack are installed；
(3) dial gauge is put into monitoring point and records initial reading；
(4) hydraulic jack is started, divide seven grades and be loaded onto 420KN, front level Four loads 20% respectively, level V loads 10%, and the six, the seven grades load 5% respectively, and every grade of load time was no less than 5 minutes, reach design load constant voltage half an hour, record dial gauge reading at different levels, check whether section of jurisdiction crackle occurs, and crack width no more than 0.15mm is qualified；Require to ensure that reaction frame for loading has enough non-deformabilities, I-steel be welded；Hold down gag divides upper and lower two parts, finishes beam test upset 180 ° and can carry out Grouting Pipe pullout tests.
2, pullout tests
(1) section of jurisdiction shoe-shaped silver ingot type is put on the support of section of jurisdiction；
(2) drawing screw rod is tightened against section of jurisdiction Grouting Pipe, effectively screws up length not less than 55mm；
(3) reverse mounted load reaction frame, resistance to plucking bearing is pressed on section of jurisdiction intrados；
(4) hydraulic jack, dial gauge are installed；
(5) pullout tests requires to apply section of jurisdiction Grouting Pipe the pulling force of 3 times of section of jurisdiction deadweights, use centimeter check displacement, starting hydraulic jack, divide seven grades and be loaded onto 138KN, front level Four loads 20% respectively, level V loads 10%, six, the seven grades load 5% respectively, and every grade of load time, no less than 5 minutes, reaches design load constant voltage half an hour, recording dial gauge reading at different levels, Grouting Pipe is not extracted as qualified.
Claims (3)
1. the dual-purpose testing stand of bending resistance resistance to plucking of a section of jurisdiction, including base, sliding machine, bearing diagonal, vertical rack, load distribution beam, load reaction frame and hydraulic jack, the each side guiding of base upper surface is slidably installed two sliding machines, the sliding machine of the left and right sides is symmetrical arranged, and forms pilot region between four sliding machines；Before and after base, the middle part of both sides is respectively mounted a vertical rack, is respectively mounted a bearing diagonal between left side and right side and the base of each vertical rack upper end；Common installation load distribution beam between two vertical racks, the load reaction frame that is slidably installed is guided in this load distribution beam, hydraulic jack is placed in load distribution beam, the plunger rod of this hydraulic jack connects load reaction frame, it is characterized in that: resistance to plucking bearing is installed in the upper surface of load reaction frame, and the bottom surface of load reaction frame is symmetrically installed two load bearings；The left and right sides of base upper surface is respectively mounted one or more section of jurisdiction support being vertically arranged, and the plurality of section of jurisdiction support is respectively positioned in pilot region.
The dual-purpose testing stand of bending resistance resistance to plucking of a kind of section of jurisdiction the most according to claim 1, it is characterised in that: arranging drawing screw rod on described resistance to plucking bearing, this drawing screw rod uses high-strength screw rod, and screw thread effectively screws up length not less than 55mm.
The dual-purpose testing stand of bending resistance resistance to plucking of a kind of section of jurisdiction the most according to claim 1, it is characterised in that: described hydraulic jack is feed-through hydraulic jack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520647711.8U CN205426675U (en) | 2015-08-25 | 2015-08-25 | Dual -purpose test bench of bending resistance resistance to plucking of section of jurisdiction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520647711.8U CN205426675U (en) | 2015-08-25 | 2015-08-25 | Dual -purpose test bench of bending resistance resistance to plucking of section of jurisdiction |
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| CN205426675U true CN205426675U (en) | 2016-08-03 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105136579A (en) * | 2015-08-25 | 2015-12-09 | 中铁十八局集团第四工程有限公司 | Bending-resistant anti-pulling dual-purpose testing table for duct piece and test method thereof |
| CN106644482A (en) * | 2016-12-30 | 2017-05-10 | 北京金风科创风电设备有限公司 | Load loading device and method |
| CN109778926A (en) * | 2019-03-22 | 2019-05-21 | 交通运输部天津水运工程科学研究所 | A kind of single pile compression dead load test device, construction method and specific purpose tool |
| CN111175146A (en) * | 2020-02-20 | 2020-05-19 | 济南轨道交通集团有限公司 | Bending resistance and impermeability dual-purpose test device and method for pipe piece |
| CN112255085A (en) * | 2020-10-26 | 2021-01-22 | 中国人民解放军军事科学院国防工程研究院工程防护研究所 | Reaction frame and enclosure structure for multifunctional medium-high pressure explosive load generator |
-
2015
- 2015-08-25 CN CN201520647711.8U patent/CN205426675U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105136579A (en) * | 2015-08-25 | 2015-12-09 | 中铁十八局集团第四工程有限公司 | Bending-resistant anti-pulling dual-purpose testing table for duct piece and test method thereof |
| CN106644482A (en) * | 2016-12-30 | 2017-05-10 | 北京金风科创风电设备有限公司 | Load loading device and method |
| CN109778926A (en) * | 2019-03-22 | 2019-05-21 | 交通运输部天津水运工程科学研究所 | A kind of single pile compression dead load test device, construction method and specific purpose tool |
| CN109778926B (en) * | 2019-03-22 | 2024-02-02 | 交通运输部天津水运工程科学研究所 | Single pile compression-resistant static load test device, construction method and special tool |
| CN111175146A (en) * | 2020-02-20 | 2020-05-19 | 济南轨道交通集团有限公司 | Bending resistance and impermeability dual-purpose test device and method for pipe piece |
| CN111175146B (en) * | 2020-02-20 | 2022-10-14 | 济南轨道交通集团有限公司 | Bending resistance and impermeability dual-purpose test device and method for pipe piece |
| CN112255085A (en) * | 2020-10-26 | 2021-01-22 | 中国人民解放军军事科学院国防工程研究院工程防护研究所 | Reaction frame and enclosure structure for multifunctional medium-high pressure explosive load generator |
| CN112255085B (en) * | 2020-10-26 | 2024-02-09 | 中国人民解放军军事科学院国防工程研究院工程防护研究所 | Reaction frame and enclosure structure for multifunctional medium-high pressure explosion load generator |
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