CN206829208U - A kind of single pile pullout tests system using prefabricated fixation kit - Google Patents

A kind of single pile pullout tests system using prefabricated fixation kit Download PDF

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Publication number
CN206829208U
CN206829208U CN201721157660.6U CN201721157660U CN206829208U CN 206829208 U CN206829208 U CN 206829208U CN 201721157660 U CN201721157660 U CN 201721157660U CN 206829208 U CN206829208 U CN 206829208U
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China
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anchor
single pile
steel plate
reinforcing bar
fixation kit
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CN201721157660.6U
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Chinese (zh)
Inventor
曾国东
王佳
周敏
曾天养
张龙
孙亚霖
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Foshan highway bridge engineering monitoring station Co., Ltd.
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Foshan Highway And Bridge Engineering Monitoring Station
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Abstract

A kind of single pile pullout tests system using prefabricated fixation kit, including support pier, main girder steel, jack, anchor disk, fixation kit and tested single pile;Two support piers are with tested single pile center symmetric setting, at least two jack are carried on each support pier, jack is symmetrical set using the center for being tested single pile as axis, two jack positioned at two support piers prop up a main girder steel respectively, support pier is in longitudinally disposed, for main girder steel in laterally setting, two main girder steels form " well " character form structure relative to two support piers;Constrained port is offered on constraint steel plate, constraint steel plate is positioned over above anchor hole, and constrained port is laminated in above anchor hole, and connection reinforcing bar passes through constrained port, and connection reinforcing bar upper end is arranged on constrained port by anchor;The weld length that connection reinforcing bar and reinforcing bar are appeared is L, and it show that mode is as follows:L=N/ (2H × F).

Description

A kind of single pile pullout tests system using prefabricated fixation kit
Technical field
Single pile pullout tests technical field is the utility model is related to, particularly a kind of single pile using prefabricated fixation kit resists Pull out pilot system.
Background technology
Tested unit for single-pile vertical anti-pulling static test detection is to carry out a kind of method of testing inspection to the stake in engineering, with true Surely it is tested vertical ultimate uplift resistance of single pile;Judge whether vertically pulling-resistant bearing capacity meets design requirement;Pass through Internal forces And deformation test, determine the resistance to plucking frictional resistance of stake.
Current single pile pullout tests obtain accurate result of the test, it is adopted to ensure the uniform force of tested single pile Device is complex in installation, so causes operating efficiency low to a certain extent;Therefore a kind of knot is needed Structure is advantageous to the pilot system of installation and removal, and that tries one's best makes installation become simple, so as to reach the effect for improving operating efficiency.
Utility model content
For drawbacks described above, the purpose of this utility model is to propose that a kind of single pile resistance to plucking using prefabricated fixation kit tries Check system, the system are relative to improve operating efficiency in the case of guarantee test result is accurate.
To use following technical scheme up to this purpose, the utility model:
A kind of single pile pullout tests system using prefabricated fixation kit, including support pier, main girder steel, jack, anchor disk, Fixation kit and tested single pile;
Two support piers each carry at least two institutes with tested single pile center symmetric setting on the support pier State jack, the jack is symmetrical set using the center for being tested single pile as axis, respectively positioned at two support piers Two jack prop up a main girder steel, and the support pier is in longitudinally disposed, and the main girder steel is in laterally setting, two institutes State main girder steel and form " well " character form structure relative to two support piers;
The anchor disk carrying is positioned over two main girder steels, and the anchor disk is provided with multiple anchor holes, multiple anchorings On the basis of anchor disk center, the mode of circular array is arranged in hole, and the anchor hole penetrates the anchor disk from top to bottom;
The fixation kit include constraint steel plate, anchor and drawing reinforcing bar, the anchor be positioned over it is described about Beam upper surface of steel plate, the drawing reinforcing bar are arranged in the anchor, constraint steel plate and anchor hole, and the anchor is by institute Drawing steel bar clamping is stated to fix;
The anchor includes anchorage and three pieces of identical intermediate plates, and the anchorage center offers from top to bottom gradually receipts The coniform depression position of contracting, it is in cone afterwards that three intermediate plates, which close up, and cone center forms holding holes, and three intermediate plates, which surround, to be led Draw reinforcing bar to close up rear enclosure and be located at the anchorage;
Constrained port is offered on the constraint steel plate, the constraint steel plate is positioned over above the anchor hole, the constraint Aperture layer is laminated on above the anchor hole, and the connection reinforcing bar passes through the constrained port, and the connection reinforcing bar lower end is welded in described Reinforcing bar is appeared;
The weld length that the connection reinforcing bar and the reinforcing bar are appeared is L, and it show that mode is as follows:L=N/ (2H × F);
Wherein, the pulling force born required for every reinforcing bar is N, and the calculated thickness of angle welding is H, the Intensity Design of angle welding It is worth for F, uses two-sided welding, therefore use the calculated thickness of 2 times of angle welding.
It is preferred that the support pier includes base portion and forced section, the force part is in the base portion top;
The base portion is concrete structure, and the forced section is reinforced concrete structure, the base portion and forced section It is integrated;
The forced section includes being no less than compound steel muscle net, and the spacing between the bar-mat reinforcement is 8cm-10cm.
It is preferred that the anchor disk both sides are installed with two suspension hooks respectively.
It is preferred that the forced section of the support pier is divided into base portion and cone portion from top to bottom;
The rectangular body shape of base portion, the section of the cone portion is from lower to upper in the trapezoidal shape gradually tapered up.
It is preferred that the bar-mat reinforcement in the support pier uses the reinforcing bar of 8mm or 10mm diameters;
The concrete grade of the support pier is C25.
Further, the anchor hole is in elongated strip, and the length of the anchor hole is more than 3 times of connection bar diameter, The width of the anchor hole is 1.5 times of connection reinforcing bar;
Constrained port is offered on the constraint steel plate, the constrained port is identical with the shape of the anchor hole.
Further, the jack is 320 tons of jack.
Further, the anchor disk includes top panel and lower panel, and the anchor disk is surrounded by side plate, the top panel, Lower panel and side plate surround case shape;
Strengthen steel plate inside the anchor disk, the reinforcing steel plate is perpendicular to the upper surface of the anchor disk, the reinforcing steel plate Reinforced structure is formed in the transverse and longitudinal welding that interlocks;
The anchor disk center is the anchor hole that array is set, and the interior reinforcing steel plate with octagon array of the anchor disk strengthens branch Support, the reinforcing steel plate of octagon array surround the anchoring hole array, reinforcing steel plate and anchor the disk fixed setting of octagon array.
The beneficial effects of the utility model:The bearing structure of " well " font has been used in this programme, has made whole pilot system Structure it is more stable, and then ensure that the progress of safety is capable of in experiment, in addition, carrying anchor disk using main girder steel, make anchor disk horizontal Across distance it is bigger, the spacing between jack is widened, in the case where spacing is longer, because falling between two jack Gradient caused by difference will be smaller, ensure that the levelness of anchor disk as far as possible, is more beneficial for anchor disk keep level degree, connection Reinforcement welding is in tested single pile, and by calculation formula, we can reduce weldering as far as possible in the range of safe load is ensured The usage amount of bar, also improves operating efficiency, by the way of welded and installed, maximum benefit be exactly after completing the test, Connection bar cutting is extracted out, that is, completes to remove, makes disassembling for device more convenient.
Brief description of the drawings
Fig. 1 is the installation diagram of one embodiment of the present utility model;
Fig. 2 is the end structure illustration of the support pier of one embodiment of the present utility model;
Fig. 3 is the use state diagram that anchor draws component in one embodiment of the present utility model
Fig. 4 is the top view of the anchor disk of one embodiment of the present utility model;
Fig. 5 is the partial enlarged drawing at B in Fig. 3;
Fig. 6 is the partial enlarged drawing at A in Fig. 4;
Fig. 7 is the reinforced structure schematic diagram inside the anchor disk of one embodiment of the present utility model.
Wherein:It is support pier 100, base portion 110, base portion 111, cone portion 112, forced section 120, main girder steel 200, very heavy Top 300, anchor disk 400, anchor hole 410, suspension hook 420, reinforcing steel plate 430, fixation kit 500, constraint steel plate 510, constrained port 511st, anchor 520, anchorage 521, intermediate plate 522, connection reinforcing bar 523, tested single pile 600, reinforcing bar appear 610.
Embodiment
Further illustrate the technical solution of the utility model below in conjunction with the accompanying drawings and by embodiment.
As shown in figures 1 to 6, a kind of single pile pullout tests system using prefabricated fixation kit, including support pier 100, main steel Beam 200, jack 300, anchor disk 400, fixation kit 500 and tested single pile 600;
Two support piers 100 are each carried with the tested center symmetric setting of single pile 600 on the support pier 100 At least two jack 300, the jack 300 are symmetrical set using the center for being tested single pile 600 as axis, respectively position Prop up a main girder steel 200 in two jack of two support piers 100, the support pier 100 in longitudinally disposed, For the main girder steel 200 in laterally setting, two main girder steels form " well " font knot relative to two support piers 100 Structure;
The carrying of anchor disk 400 is positioned over two main girder steels 200, and the anchor disk 400 is provided with multiple anchor holes 410, Multiple anchor holes 410 on the basis of the center of anchor disk 400, arrange by the mode of circular array, the anchor hole 410 from upper and Under penetrate the anchor disk 400;
The fixation kit includes constraint steel plate 510, anchor 520 and drawing reinforcing bar 522, the anchor 520 Constraint steel plate 510 upper surface is positioned over, the drawing reinforcing bar 522 is arranged in the anchor 520, constraint steel plate 510 With anchor hole 410, the drawing reinforcing bar 522 is fixedly clamped by the anchor 520;
The anchor 520 includes anchorage 521 and three pieces of identical intermediate plates 522, the center of anchorage 521 offer by The coniform depression position that top to bottm gradually tapers up, three intermediate plates close up after be in cone, cone center composition holding holes, three Individual intermediate plate 522 closes up rear enclosure around drawing reinforcing bar 522 and is located at the anchorage 521;
Constrained port 511 is offered on the constraint steel plate 510, the constraint steel plate 510 is positioned on the anchor hole 410 Side, the constrained port 511 are laminated in the top of anchor hole 410, and the connection reinforcing bar 523 passes through the constrained port 511;
Appear 610 weld length of the connection reinforcing bar 523 and reinforcing bar is L, and it show that mode is as follows:L=N/ (2H ×F);
Wherein, the pulling force born required for every reinforcing bar is N, and the calculated thickness of angle welding is H, the Intensity Design of angle welding It is worth for F, uses two-sided welding, therefore use the calculated thickness of 2 times of angle welding.
The bearing structure of " well " font has been used in this programme, has made the structure of whole pilot system more stable, and then has been ensured The progress of safety is capable of in experiment, in addition, carry anchor disk 400 using main girder steel 200, make anchor disk 400 across distance it is bigger, Spacing between jack 300 is widened, in the case where spacing is longer, because the drop between two jack 300 causes Gradient will be smaller, ensure that the levelness of anchor disk 400 as far as possible, be more beneficial for the keep level degree of anchor disk 400, and connect Connect reinforcing bar 523 and be welded in tested single pile 600, by calculation formula, we can be in the range of safe load be ensured, as far as possible Reduction welding rod usage amount, also improve operating efficiency, by the way of welded and installed, maximum benefit be exactly complete examination After testing, connection reinforcing bar 523 is cut off into extraction, that is, completes to remove, makes disassembling for device more convenient.
Wherein, the support pier 100 includes base portion 110 and forced section 120, and the forced section 120 is located at the pedestal The top of portion 110;
The base portion 110 is concrete structure, and the forced section 120 is reinforced concrete structure, the base portion 110 It is integrated with forced section 120;
The forced section 120 includes being no less than compound steel muscle net, and the spacing between the bar-mat reinforcement is 8cm-10cm.
During experiment, the tops of two support piers 100 will bear larger load, therefore by the top of support pier 100 End be set to forced section 120, make the internal force of the force part on the top of support pier 100 stronger, make support pier 100 bear load it Afterwards, main girder steel 200 can be reliably supported, so as to which guarantee test smoothly completes.
Wherein, the both sides of anchor disk 400 are installed with two suspension hooks 420 respectively.
The setting of suspension hook 420, is easy to the lifting of anchor disk 400, and this programme is mounted with two suspension hooks in the both sides of anchor disk respectively 420, it is ensured that in lifting, anchor disk can be lifted with horizontality.
In addition, the forced section 120 of the support pier 100 is divided into base portion 111 and cone portion 112 from top to bottom;
The rectangular body shape of base portion 111, the section of the cone portion 112 are trapezoidal in gradually tapering up from lower to upper Shape.
The area of the bottom of support pier 100 is big, and the reaction force for making support pier 100 be subject in pullout tests has sufficiently large Diffusional area, sink after avoiding the stress of support pier 100, ensure that support pier 100 will not produce sedimentation after stress, and then ensure anchor Disk 400 is in horizontality, and the area at the top of support pier 100 is small, but has enough intensity, makes main girder steel 200 and support Domestic animal area between pier 100 is smaller, so as to ensure that the levelness of main girder steel 200, and then ensure that the accurate of test data Property.
In addition, the bar-mat reinforcement in the support pier 100 uses the reinforcing bar of 8mm or 10mm diameters;
The concrete grade of the support pier is C25.
The structural strength of armored concrete is big, support pier 100 is had enough endurance.
Wherein, the anchor hole 410 is in elongated strip, and the length of the anchor hole 410 is more than the connection diameter of reinforcing bar 523 3 times, the width of the anchor hole 410 is 1.5 times of connection reinforcing bar 523;
Constrained port 511, the shape phase of the constrained port 511 and the anchor hole 510 are offered on the constraint steel plate 510 Together.
The effect of anchor hole 410 is to put forth effort anchorage 521, and the effect of constraint steel plate 510 is to strengthen the rigidity of anchor disk 400.
Wherein, the jack 300 is 320 tons of jack.
This structure is used for the single pile pullout tests within kiloton, therefore 320 tonnes of jack just disclosure satisfy that experiment Needs.
In addition, the anchor disk 400 includes top panel and lower panel, the anchor disk is surrounded by side plate, the top panel, under Panel and side plate surround case shape;
Strengthen steel plate inside the anchor disk, the reinforcing steel plate is perpendicular to the upper surface of the anchor disk, the reinforcing steel plate Reinforced structure is formed in the transverse and longitudinal welding that interlocks.
The reinforcing steel plate for setting transverse and longitudinal to interlock inside anchor disk 400, makes the integrally-built intensity of anchor disk higher, it is total and Anchor disk 400 can afford bigger load, anchor disk 400 is not produced deformation after by big load.
Technical principle of the present utility model is described above in association with specific embodiment.These descriptions are intended merely to explain this reality With new principle, and the limitation to scope of protection of the utility model can not be construed in any way.Based on explanation herein, Those skilled in the art, which would not require any inventive effort, can associate other embodiments of the present utility model, These modes are fallen within the scope of protection of the utility model.

Claims (8)

1. a kind of single pile pullout tests system using prefabricated fixation kit, it is characterised in that including support pier, main girder steel, thousand Jin top, anchor disk, fixation kit and tested single pile;
Two support piers each carry at least two described thousand with tested single pile center symmetric setting on the support pier Jin top, the jack is symmetrical set using the center for being tested single pile as axis, respectively positioned at two of two support piers Jack props up a main girder steel, and the support pier is in longitudinally disposed, and the main girder steel is in laterally setting, two masters Girder steel forms " well " character form structure relative to two support piers;
Anchor disk carrying is positioned over two main girder steels, and the anchor disk is provided with multiple anchor holes, multiple anchor holes with On the basis of anchor disk center, the mode of circular array is arranged, the anchor hole penetrates the anchor disk from top to bottom;
The fixation kit includes constraint steel plate, anchor and drawing reinforcing bar, the anchor and is positioned over the constraint steel Plate upper surface, the drawing reinforcing bar are arranged in the anchor, constraint steel plate and anchor hole, the anchor and led described Steel bar clamping is drawn to fix;
The anchor includes anchorage and three pieces of identical intermediate plates, and the anchorage center offers what is gradually tapered up from top to bottom Coniform depression position, it is in cone afterwards that three intermediate plates, which close up, and cone center forms holding holes, and three intermediate plates are around drawing steel Adhesion of tendon and muscle after injury holds together rear enclosure and is located at the anchorage;
Constrained port is offered on the constraint steel plate, the constraint steel plate is positioned over above the anchor hole, the constraint aperture layer It is laminated on above the anchor hole, the connection reinforcing bar passes through the constrained port, and the connection reinforcing bar lower end is welded in the reinforcing bar Appear;
The weld length that the connection reinforcing bar and the reinforcing bar are appeared is L, and it show that mode is as follows:L=N/ (2H × F);
The pulling force born required for every reinforcing bar is N, and the calculated thickness of angle welding is H, and the strength failure criterion of angle welding is F, is adopted With two-sided welding, therefore use the calculated thickness of 2 times of angle welding.
2. the single pile pullout tests system according to claim 1 using prefabricated fixation kit, it is characterised in that the branch Support pier includes base portion and forced section, and the force part is in the base portion top;
The base portion is concrete structure, and the forced section is reinforced concrete structure, and the base portion and forced section are one Body structure;
The forced section includes being no less than compound steel muscle net, and the spacing between the bar-mat reinforcement is 8cm-10cm.
3. the single pile pullout tests system according to claim 2 using prefabricated fixation kit, it is characterised in that the anchor Disk both sides are installed with two suspension hooks respectively.
4. the single pile pullout tests system according to claim 3 using prefabricated fixation kit, it is characterised in that the branch The forced section of support pier is divided into base portion and cone portion from top to bottom;
The rectangular body shape of base portion, the section of the cone portion is from lower to upper in the trapezoidal shape gradually tapered up.
5. the single pile pullout tests system according to claim 4 using prefabricated fixation kit, it is characterised in that the branch Support the reinforcing bar that the bar-mat reinforcement in pier uses 8mm or 10mm diameters;
The concrete grade of the support pier is C25.
6. the single pile pullout tests system according to claim 5 using prefabricated fixation kit, it is characterised in that:The anchor Solid hole is in elongated strip, and the length of the anchor hole is more than 3 times of connection bar diameter, and the width of the anchor hole is connection steel 1.5 times of muscle;
Constrained port is offered on the constraint steel plate, the constrained port is identical with the shape of the anchor hole.
7. the single pile pullout tests system according to claim 6 using prefabricated fixation kit, it is characterised in that described thousand Jin top is 320 tons of jack.
8. the single pile pullout tests system according to claim 7 using prefabricated fixation kit, it is characterised in that the anchor Disk includes top panel and lower panel, and the anchor disk is surrounded by side plate, and the top panel, lower panel and side plate surround case shape;
Strengthen steel plate inside the anchor disk, the reinforcing steel plate is perpendicular to the upper surface of the anchor disk, and the reinforcing steel plate is in horizontal stroke Vertical staggeredly welding forms reinforced structure;
The anchor disk center is the anchor hole that array is set, and strengthens supporting with the reinforcing steel plate of octagon array in the anchor disk, The reinforcing steel plate of octagon array surrounds the anchoring hole array, reinforcing steel plate and anchor the disk fixed setting of octagon array.
CN201721157660.6U 2017-09-11 2017-09-11 A kind of single pile pullout tests system using prefabricated fixation kit Active CN206829208U (en)

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Application Number Priority Date Filing Date Title
CN201721157660.6U CN206829208U (en) 2017-09-11 2017-09-11 A kind of single pile pullout tests system using prefabricated fixation kit

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109024714A (en) * 2018-06-26 2018-12-18 中国电力科学研究院有限公司 A kind of pulling resistance testing device of anchor pole

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109024714A (en) * 2018-06-26 2018-12-18 中国电力科学研究院有限公司 A kind of pulling resistance testing device of anchor pole

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Address after: Two road 528041 Guangdong city of Foshan province at the No. 18 seat 2

Patentee after: Foshan highway bridge engineering monitoring station Co., Ltd.

Address before: Two road 528041 Guangdong city of Foshan province at the No. 18 seat 2

Patentee before: Foshan highway and bridge engineering monitoring station