CN205538486U - Be used for shield to construct section of jurisdiction and experimental loading device of straight beam - Google Patents
Be used for shield to construct section of jurisdiction and experimental loading device of straight beam Download PDFInfo
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- CN205538486U CN205538486U CN201620071650.XU CN201620071650U CN205538486U CN 205538486 U CN205538486 U CN 205538486U CN 201620071650 U CN201620071650 U CN 201620071650U CN 205538486 U CN205538486 U CN 205538486U
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Abstract
This paper discloses a be used for shield to construct section of jurisdiction and experimental loading device of straight beam, and wherein rack base, four stands in the four corners constitute test bench, horizontal jack, sliding support, vertical jack, vertical can three branch loadings and the vertical reaction beam of " H " shape of span centre the loading vertical load plate, horizontal reaction beam and the liftable that switch constitute loading system, pressure sensor, the laser displacement sensor of each jack front end, take the high accuracy camera of scale to constitute data acquisition system, place section of jurisdiction or roof beam on two sliding supports of horizontal direction, vertical load plate utilizes the level to carry out the loading to four jack and two vertical jack on arranging it in.
Description
Technical field
This utility model relates to experimental facilities, especially a kind of for shield duct piece and straight beam experiment loading unit.
Background technology
Now with developing rapidly of domestic subway, the use of duct pieces of shield tunnel is the most extensive.But with this single shell lining as permanent support especially it is noted that waterproof, crack developing etc., so the requirement to section of jurisdiction self performance is more and more higher, increasingly focus on the combination property of section of jurisdiction each side.Based on these requirements, all kinds of can effectively limit crack developing, characteristic section of jurisdiction that combination property is high will gradually apply in Practical Project.
In consideration of it, the experimental study for all kinds of sections of jurisdiction performance is just particularly important.All kinds of assay devices currently for shield duct piece mechanical property test also seem that comparison is single and precision is the highest.
Utility model content
The purpose of this utility model is that provides a kind of for shield duct piece and straight beam experiment loading unit for solving the problems referred to above.
For reaching above-mentioned purpose, this utility model by the following technical solutions:
A kind of for shield duct piece and straight beam experiment loading unit, including test-bed and data collecting system；Wherein: test-bed has rack base, four root posts are placed on rack base corner, it is equipped with guide groove on the table top of rack base, pair of sliding bearing passes through to realize sliding laterally on two slip roller bearings track on test-bed base, it is provided with level jack between sliding support and the horizontal reaction beam of rack base, laterally loads so that sample is provided；The vertical reaction beam of " H " shape is nested with on four root posts of rack base, and liftably selects suitable height and position to fix on four root posts by bolt；The vertical jack in two, top of vertical load plate is arranged between the central sill of the vertical reaction beam of " H " shape and vertical load plate, provides vertical by the loading roller bearing of load plate bottom to sample and loads；Data collecting system includes being arranged on the horizontal pressure force sensor at level jack top, the vertical pressure sensor on vertical jack top and the laser displacement sensor being arranged in rack base intermediate groove and high accuracy photographic head with a scale.
Horizontal jack of the present utility model and vertical jack are hydraulic jack, utilize central control system to control petrol station pressurization, and employing is arranged symmetrically with side by side, it is possible to pressurize the most accurately.All there are two slip roller bearings under each sliding support, standard can slide laterally on the track on test-bed base, effective control section of jurisdiction or beam is placed in position correct on test-bed and overcomes bias-pressure phenomenon in pressure process.
For adapting under different samples and load mode, the bottom of load plate has "T"-shaped groove, and one or more Sliding partitions being equipped with triangle loading head are equipped with and are placed in "T"-shaped groove, and Sliding partitions can slide along "T"-shaped groove level.Loading roller bearing and insert in the axis hole of triangle loading head, user can configure corresponding load maintainer according to different use occasions.
In order to test the handling being easy to section of jurisdiction or beam, the vertical jack of this utility model is fixed in vertical load plate, and about vertical load plate, 2 ends are connected to the motor on top " H " ellbeam by two lifting ropes by pulley, system can control its lifting.
The most complete collection for the ease of experimental data, or this utility model the bottom of section of jurisdiction beam and front and back both sides all configure a high accuracy photographic head with a scale and record carrying out of whole experimentation and crack, and configure five laser displacement sensors in bottom and the left and right sides and can measure the displacement of two ends and bottom.
For the ease of section of jurisdiction and the collection of beam bottom data, the middle part of test-bed base can be made a groove and is beneficial to high accuracy photographic head with a scale and laser displacement sensor is seated to optimum position by this utility model.
Horizontal pressure force sensor is between sliding support and level jack, and vertical pressure sensor is positioned between vertical jack and the test-bed top vertical reaction beam of liftable " H " shape.
For the ease of test-bed switching tests in the load that section of jurisdiction and these discrepancy in elevation of crossbeam are the biggest, test-bed top " H " shape vertical reaction beam corner can be connected the motor that hoist cable is linked on column by pulley by this utility model, and at 1.4m, 1.7m, 2m, leave lock hole in advance in four root post sides so that it is can be along four root post oscilaltions and fix.
Span centre for the ease of different size section of jurisdiction with crossbeam loads the switching loaded with three branches, and this utility model will embed two Sliding partitions in vertical load plate so that it is can be at vertical load plate side pull, in order to complete to load the variation of roller positions.
The utility model has the advantage of:
This assay device can utilize hydraulic jack accurately to import horizontal force and vertical pressure, the effective moment of flexure arriving design and axle power, and can be slided by the controllable levels of sliding support makes experimental condition reach consistent with Design Theory, plus can loading in three branches of oscilaltion loading the vertical load plate and the vertical reaction beam of bench top liftable " H " shape switched with span centre so that this device can load in three branches of section of jurisdiction and beam and switch flexibly in span centre loading experiment；The transformation of its test-bed base and pressure transducer, high accuracy photographic head with a scale, laser displacement sensor make this experimental provision can record a set of comprehensive and accurate data, closer to test expection.
Accompanying drawing explanation
Fig. 1 is this utility model shield duct piece and the three-dimensional structure diagram of straight beam experiment loading unit.
Fig. 2 is the longitudinal sectional view of Fig. 1.
Fig. 3 is the front view of the assay device that this utility model device loads for duct pieces of shield tunnel three branch；
Fig. 4 is the front view of the assay device that this utility model device loads for duct pieces of shield tunnel span centre；
Fig. 5 is the front view of the assay device that this utility model device loads for shield tunnel beam three branch；
Fig. 6 is the front view of the assay device that this utility model device loads in shield tunnel girder span；
Fig. 7 is that this utility model device is for shield duct piece and the rearview of straight beam experiment loading unit transverse support；
Fig. 8 is that this utility model device is for shield duct piece and the side view of straight beam experiment loading unit transverse support；
Fig. 9 is that this utility model device is for shield duct piece and the top view of the vertical reaction beam of straight beam experiment loading unit；
Figure 10 is this utility model device front view of the assay device that span centre loads when shield tunnel beam size diminishes；
Detailed description of the invention
The utility model is described in further detail below in conjunction with the accompanying drawings:
Can be seen that with Fig. 3 as shown in Figure 1, Figure 2, shield duct piece described in the utility model and straight beam experiment loading unit include test-bed data collecting system and tested shield duct piece 11 and all kinds of beam 12, described test-bed includes rack base 7 and four vertical upright columns 6, uses welding between it；nullDescribed charger is divided into horizontal charger and vertical loading device，Laterally charger includes two horizontal reaction beams 14、Four level jack 8 and two Slidable supports 9 and 10 putting section of jurisdiction，Four level jack 8 are individually placed in two four special grooves 15 of horizontal reaction beam 14 front end，Four horizontal pressure force sensors 19 are placed in jack front end and to embed two four prefabricated circular holes 16 of sliding support inner fixing，The realization that slides laterally being promoted sliding support by the elongation of jack 8 is laterally loaded，Vertical loading device is by the vertical reaction beam of liftable " H " shape 1、Two vertical pressure sensors 2、Two vertical jack 3、1 vertical load plate 4 and two hoist cables 5 controlling the lifting of vertical load plate are constituted，Make vertical load plate be placed in by hoist cable 5 decline to be loaded on thing，Realize loading by jack，Vertical load plate is by two motor 21、Two pulleys 20 and two hoist cables 5 realize short distance lifting；Described data collecting system includes two vertical pressure sensors, 19,5 laser displacement sensors of 2, four horizontal pressure force sensors and three high accuracy photographic head 17 with a scale.
Three laser displacement sensors 13 are placed in base 7 intermediate groove, two other laser displacement sensor 13 is positioned at horizontal reaction beam 14 central authorities, and these data acquisition units are all connected to central control system (being not drawn in figure) by connecting line and carry out data record, preservation.
As shown in figures 3 and 8, sliding support realizes standard lateral by two beneath roller bearings 18 in specific chute and moves, and realizes loading with this.
As shown in Fig. 3, Fig. 4, Fig. 5 and Fig. 6, when the triangular prism 10 taken on sliding support 9, vertical reaction beam 1 oscilaltion of top liftable " H " shape just can be realized switching to this device the load test of beam.
As shown in Figure 10, when after level jack 8 plus prefabricated small cushion block 25 (each horizontal jack configuration 20cm, 40cm, 60cm tri-kinds) and adjust the distance of vertical two loading roller bearings 242 of load plate and just can complete the span centre of each size crossbeam (0.9m-3.5m) and load the switching loaded with three branches.
As shown in Figure 1, Figure 2, Figure 3 shows, slide plate 24 twitch in the "T"-shaped groove of vertical load plate 4 make loading roller bearing arrive ad-hoc location and just can make section of jurisdiction and load test with bolt is fixing；Moving loading roller bearing 242 to span centre on one side, another root takes down, and fixes the span centre load test that just can make section of jurisdiction with beam with bolt.
As shown in Fig. 1 and Fig. 9, during experiment, the vertical reaction beam of top " H " shape 1 can with four Thursday root hoist cable 5 be connected to four motor 21 by four pulleys 20 and control its oscilaltion, and fix with pin 22 at corresponding pin hole 23.
As shown in Figure 1, Figure 7 shows, four horizontal pressure force sensors 19 are positioned by prefabricated circular hole 16 after embedding bearing.
Claims (6)
1. one kind is used for shield duct piece and straight beam experiment loading unit, it is characterised in that include test-bed and data collecting system；Wherein: test-bed has rack base (7), four root posts (6) are placed on rack base corner, it is equipped with guide groove on the table top of rack base, pair of sliding bearing (9 and 10) passes through to realize sliding laterally on two slip roller bearings (18) track on test-bed base, it is provided with level jack (8) between sliding support (9 and 10) and the horizontal reaction beam of rack base (14), laterally loads so that sample is provided；The vertical reaction beam of " H " shape (1) is nested with on four root posts (6) of rack base (7), and liftably selects suitable height and position to fix on four root posts by bolt (22)；Two, the top vertical jack (3) of vertical load plate (4) is arranged between the central sill of the vertical reaction beam of " H " shape (1) and vertical load plate (4), provides vertical by the loading roller bearing (242) of load plate (4) bottom to sample and loads；Data collecting system includes being arranged on the horizontal pressure force sensor (19) at level jack (8) top, the vertical pressure sensor (2) on vertical jack (3) top and the laser displacement sensor (13) being arranged in rack base (7) intermediate groove and high accuracy photographic head (17) with a scale.
The most according to claim 1 for shield duct piece with straight beam experiment loading unit, it is characterized in that, the bottom of described load plate (4) has "T"-shaped groove, one or more Sliding partitions (24) being equipped with triangle loading head (241) are placed in "T"-shaped groove, and Sliding partitions can slide along "T"-shaped groove level.
3. according to described in claim 1 or claim 2 for shield duct piece and straight beam experiment loading unit, it is characterised in that described loading roller bearing (242) inserts in the axis hole of triangle loading head (241).
The most according to claim 1 for shield duct piece with straight beam experiment loading unit, it is characterised in that described level jack (8) is each two arranged in parallel at stand two ends；Vertical jack (3) is two arranged in parallel in vertical load plate.
The most according to claim 1 for shield duct piece with straight beam experiment loading unit, it is characterized in that, the bottom of rack base (7) and front and back both sides are provided with high accuracy photographic head (17) with a scale, to record carrying out and width of loading complete process crack；The bottom of rack base and the left and right sides laser displacement sensor (13) is set to measure the displacement at sample two ends and bottom.
The most according to claim 1 for shield duct piece with straight beam experiment loading unit, it is characterised in that described sample includes shield duct piece (11) and straight beam (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620071650.XU CN205538486U (en) | 2016-01-25 | 2016-01-25 | Be used for shield to construct section of jurisdiction and experimental loading device of straight beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620071650.XU CN205538486U (en) | 2016-01-25 | 2016-01-25 | Be used for shield to construct section of jurisdiction and experimental loading device of straight beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205538486U true CN205538486U (en) | 2016-08-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620071650.XU Expired - Fee Related CN205538486U (en) | 2016-01-25 | 2016-01-25 | Be used for shield to construct section of jurisdiction and experimental loading device of straight beam |
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| CN (1) | CN205538486U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105651614A (en) * | 2016-01-25 | 2016-06-08 | 西南交通大学 | Experiment loading device for shield segment and straight beam |
| 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 |
| CN108562466A (en) * | 2018-01-15 | 2018-09-21 | 中国矿业大学 | A kind of cylinder rock sample multi-angle splitting device and its method |
| CN110243677A (en) * | 2019-05-22 | 2019-09-17 | 同济大学 | Shield duct piece steel bar corrosion causes the test method of Stiffness Deterioration under a kind of multifactor effect |
| CN110346099A (en) * | 2019-07-13 | 2019-10-18 | 深圳市盐田港建筑工程检测有限公司 | Truss-steel beam deflection detector |
-
2016
- 2016-01-25 CN CN201620071650.XU patent/CN205538486U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105651614A (en) * | 2016-01-25 | 2016-06-08 | 西南交通大学 | Experiment loading device for shield segment and straight beam |
| 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 |
| CN108562466A (en) * | 2018-01-15 | 2018-09-21 | 中国矿业大学 | A kind of cylinder rock sample multi-angle splitting device and its method |
| CN110243677A (en) * | 2019-05-22 | 2019-09-17 | 同济大学 | Shield duct piece steel bar corrosion causes the test method of Stiffness Deterioration under a kind of multifactor effect |
| CN110346099A (en) * | 2019-07-13 | 2019-10-18 | 深圳市盐田港建筑工程检测有限公司 | Truss-steel beam deflection detector |
| CN110346099B (en) * | 2019-07-13 | 2020-11-17 | 深圳市盐田港建筑工程检测有限公司 | Steel frame beam deflection detection device |
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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: 20160831 Termination date: 20200125 |
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| CF01 | Termination of patent right due to non-payment of annual fee |