CN220284895U - Wet node adhesion testing arrangement of assembled steel-pipe pile stake core cap - Google Patents
Wet node adhesion testing arrangement of assembled steel-pipe pile stake core cap Download PDFInfo
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- CN220284895U CN220284895U CN202321765268.5U CN202321765268U CN220284895U CN 220284895 U CN220284895 U CN 220284895U CN 202321765268 U CN202321765268 U CN 202321765268U CN 220284895 U CN220284895 U CN 220284895U
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- 238000012360 testing method Methods 0.000 title claims abstract description 68
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 43
- 239000010959 steel Substances 0.000 claims abstract description 43
- 239000004570 mortar (masonry) Substances 0.000 claims abstract description 11
- 238000009434 installation Methods 0.000 claims abstract description 9
- 230000007246 mechanism Effects 0.000 claims description 9
- 239000000853 adhesive Substances 0.000 abstract description 5
- 230000001070 adhesive effect Effects 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model provides an assembly type steel pipe pile core cap wet node binding force testing device which comprises a supporting frame and a testing table, wherein a hydraulic cylinder body is arranged on the inner top wall of the supporting frame, the testing table is positioned right below the hydraulic cylinder body, an abutting seat is arranged at the output end of the hydraulic cylinder body, a test piece is placed on the testing table, the test piece comprises a steel pipe, a prefabricated pile core cap arranged in the center of the steel pipe, and binding mortar arranged between the prefabricated pile core cap and the steel pipe, and a center hole with the same diameter as the inner diameter of the steel pipe is arranged in the center of the testing table. The on-site installation situation is completely reduced through the test piece, the hydraulic cylinder body on the support frame is used for pressing the test piece, so that the effect of adhesive force test is achieved by observing the change of adhesive mortar in the test piece, meanwhile, the stability of the whole support frame is further improved through the installation of the embedded part, and the test device is suitable for testing of larger pressure.
Description
Technical Field
The utility model relates to the field of fabricated wharfs, in particular to a device for testing the binding force of a wet node of a pile core cap of a fabricated steel pipe pile.
Background
At present, the steel pipe pile core pile cap of the high pile wharf in the port engineering of China is manufactured in a cast-in-situ mode, and the problems of long construction period, low work efficiency, high water operation difficulty, difficult control of construction quality and the like exist, and the problems can be effectively avoided by adopting the prefabricated pile core pile cap. The prefabricated pile core pile cap mainly comprises steel pipe piles and pile core pile cap components which are assembled together, and the steel pipe piles and the pile cores are connected through grouting materials.
The existing similar grouting material mainly uses cement, fly ash and the like as cementing materials, and certain additives and expansion components are mixed by changing the grain composition of fine aggregates, so that the grouting material has better workability, higher mechanical property and durability.
In order to ensure that the wet node of the steel pipe pile and the core pile cap has qualified bonding force, the wet node is required to be tested by a testing device, and the conventional testing mode is mainly to test the bonding force between the steel pipe pile and the pile core in a small range of cementing materials in a laboratory, and the bonding force between the steel pipe pile and the pile core cannot be directly subjected to on-site reduction test, so that the data is easy to interfere, and the wet node bonding force testing device for the core pile cap of the assembled steel pipe pile is provided to solve the problems.
Disclosure of Invention
The utility model mainly aims to provide an assembly type steel pipe pile core cap wet node binding force testing device which solves the problems that binding force between a steel pipe pile and a pile core cannot be directly reduced and tested in a field in a small-range test of cementing materials in a laboratory and data are easy to interfere in the existing testing mode.
In order to solve the technical problems, the utility model adopts the following technical scheme: the utility model provides an assembled steel-pipe pile core cap wet node adhesion testing arrangement, includes support frame and testboard, is provided with the hydraulic cylinder body on the interior roof of support frame, and the testboard is located hydraulic cylinder body's output is provided with the conflict seat under, has placed the test piece on the testboard, and the test piece includes the steel pipe, embeds the prefabricated pile core cap of steel pipe center department to and set up the bonding mortar between prefabricated pile core cap and steel pipe, the center department of testboard is provided with the centre bore that the diameter is the same with the steel pipe internal diameter.
In the preferable scheme, a concrete ultrasonic detector for detecting the bonding mortar is arranged outside the steel pipe.
In the preferred scheme, the support frame includes four support columns, sets up the roof on four support column tops to and four are pre-buried underground and be located the installation built-in fitting of four support column lower extreme respectively, wherein, the both sides that the support column bottom is relative all are provided with the fixed foot that is connected with the installation built-in fitting.
In the preferred scheme, the installation built-in fitting includes pre-buried bottom plate and sets up on pre-buried bottom plate and upwards extend a plurality of connecting screw rod, has offered the perforation that supplies connecting screw rod to pass on the fixed foot, and the fixation nut that is used for locking the fixed foot is installed to the top screw thread of connecting screw rod.
In the preferred scheme, be provided with the spout the same with connecting screw quantity on the pre-buried bottom plate, connecting screw's bottom is pegged graft with corresponding spout, and connecting screw's outside is provided with two locking nuts that are located pre-buried bottom plate upper and lower both sides respectively.
In the preferred scheme, the top of pre-buried bottom plate is provided with the stiffening plate, and the both ends of stiffening plate all are connected with the stiffening sloping plate that is located pre-buried bottom plate top edge department.
In the preferred scheme, the testboard is including setting up the center ring seat under the conflict seat and four equidistance annular settings are at the outside extension piece of outside extension of center ring seat, and wherein, the centre bore is seted up at the middle part of center ring seat, and the top of four extension pieces all is provided with positioning mechanism.
In the preferred scheme, positioning mechanism is including setting up the supporting seat at the extension piece top, setting up on the supporting seat and the output towards the locating hydro-cylinder of center ring seat center department to and set up the impeller plate on locating hydro-cylinder output, the impeller plate is the cambered surface towards one side of center ring seat, and cambered surface and the outer wall looks adaptation of steel pipe.
The utility model provides an adhesive force testing device for a wet node of a pile core cap of an assembled steel pipe pile, which completely restores the site installation situation through a test piece, is placed on a test bench, and is pressurized by utilizing a hydraulic cylinder body on a supporting frame, so that the effect of adhesive force testing is realized by observing the change of adhesive mortar in the test piece, meanwhile, the stability of the whole supporting frame is further improved by installing an embedded part, the device is suitable for testing with larger pressure, and in addition, the positioning mechanism is arranged, so that the test piece placed on the test bench can be centered conveniently and rapidly.
Drawings
The utility model is further illustrated by the following examples in conjunction with the accompanying drawings:
FIG. 1 is a general assembly block diagram of the present utility model;
FIG. 2 is a cross-sectional view of a test piece according to the present utility model;
FIG. 3 is a diagram of the connection structure of the support post, the fixing leg and the mounting embedded part of the utility model;
FIG. 4 is a block diagram of the mounting embedment of the present utility model;
FIG. 5 is a top view of the mounting embedment of the present utility model;
FIG. 6 is a cross-sectional view of the cross-sectional structure of the mounting embedment of the present utility model;
FIG. 7 is a block diagram of a test stand and positioning mechanism of the present utility model;
in the figure: a support frame 1; support columns 11; a top plate 12; a fixed leg 13; installing an embedded part 14; pre-buried bottom plate 141; a chute 142; a connecting screw 143; a fixing nut 144; stiffening plates 145; a stiffening ramp 146; a lock nut 147; a test bench 2; a center ring seat 201; a central bore 202; an extension block 203; a support base 204; positioning an oil cylinder 205; a push plate 206; a test piece 3; a steel pipe 301; prefabricating pile core caps 302; a bonding mortar 303; a hydraulic cylinder 4; a contact seat 5; and a concrete ultrasonic detector 6.
Detailed Description
Example 1
As shown in fig. 1-6, an assembled steel pipe pile core cap wet node bonding force testing device comprises a supporting frame 1 and a testing table 2, wherein the supporting frame 1 is fixed on the ground, the supporting frame 1 is covered above the testing table 2, a hydraulic cylinder body 4 is arranged on the inner top wall of the supporting frame 1, the hydraulic cylinder body 4 is used for testing and pressing, the testing table 2 is located under the hydraulic cylinder body 4, an abutting seat 5 is fixedly arranged at the output end of the hydraulic cylinder body 4, a test piece 3 is placed on the testing table 2, the test piece 3 is located under the abutting seat 5, the test piece 3 comprises a steel pipe 301, a precast pile core cap 302 arranged in the center of the steel pipe 301, and bonding mortar 303 arranged between the precast pile core cap 302 and the steel pipe 301, and a center hole 202 with the same diameter as the inner diameter of the steel pipe 301 is arranged in the center of the testing table 2.
The steel pipe 301 is a hollow pipe body with upper and lower openings, the prefabricated pile core cap 302 is inserted into the hollow pipe body and extends out of the top end, and the thickness of the bonding mortar 303 is 8cm.
When the test piece is used, the formed test piece 3 is placed on the central hole 202 of the test bench 2, the precast pile core cap 302 is ensured to be positioned above the central hole 202, and then the hydraulic cylinder body 4 is started to push the abutting seat 5 to apply pressure to the precast pile core cap 302, so that the effect of testing the bonding force of the bonding mortar 303 is achieved.
In a preferred scheme, the support frame 1 comprises four support columns 11, a top plate 12 fixedly arranged at the top ends of the four support columns 11, and four mounting embedded parts 14 which are pre-buried underground and are respectively positioned at the lower ends of the four support columns 11, wherein fixing feet 13 connected with the mounting embedded parts 14 are respectively arranged at two opposite sides of the bottom of the support column 11.
Wherein, the installation built-in fitting 14 includes pre-buried bottom plate 141 and a plurality of connecting screw rods 143 that set up on pre-buried bottom plate 141 and upwards extend, and in this embodiment, the quantity of connecting screw rods 143 is two, has offered the perforation that supplies connecting screw rods 143 to pass on the fixed foot 13, and the fixation nut 144 that is used for locking fixed foot 13 is installed to the top screw thread of connecting screw rods 143.
When the embedded bottom plate 141 is buried underground in an embedded mode, the connecting screw rods 143 extend to the bottom surface, then the fixing feet 13 of the supporting columns 11 penetrate through the corresponding connecting screw rods 143, the fixing nuts 144 are locked for fixing, the stability of the device can be effectively improved through the embedded part 14, and the embedded bottom plate is suitable for applying larger pressure.
In a preferred embodiment, the embedded bottom plate 141 is provided with two sliding grooves 142 with the same number as the connecting screws 143, and in this embodiment, the bottom ends of the connecting screws 143 are inserted into the corresponding sliding grooves 142, so that the specific positions of the connecting screws 143 are adjusted by sliding the connecting screws 143 in the sliding grooves 142, and two locking nuts 147 respectively positioned on the upper side and the lower side of the embedded bottom plate 141 are mounted outside the connecting screws 143, so that the positions of the connecting screws 143 are conveniently fixed by the two locking nuts 147.
In the preferred scheme, the top welding of pre-buried bottom plate 141 has stiffening plate 145, and the both ends of stiffening plate 145 all weld the stiffening inclined plate 146 that is located pre-buried bottom plate 141 top edge department, and the overlook cross-section of stiffening plate 145 and two stiffening inclined plates 146 is the I shape, and then through stiffening plate 145 and two stiffening inclined plates 146 reinforcing pre-buried bottom plate 141's structural stability.
Example 2
Further describing in connection with embodiment 1, as shown in fig. 1 and 7, the test bench 2 includes a central ring seat 201 disposed directly under the interference seat 5 and four extending blocks 203 disposed at equal intervals and annularly outside the central ring seat 201 and extending outwards, wherein a central hole 202 is formed in the middle of the central ring seat 201, and positioning mechanisms are disposed at the tops of the four extending blocks 203, so that the test piece 3 placed on the central ring seat 201 can be positioned accurately and quickly by the positioning mechanisms.
In a preferred embodiment, the positioning mechanism includes a supporting seat 204 fixed on the top of the extending block 203, a positioning cylinder 205 disposed on the supporting seat 204 and having an output end facing the center of the center ring seat 201, and a pushing plate 206 disposed on the output end of the positioning cylinder 205, where one side of the pushing plate 206 facing the center ring seat 201 is a cambered surface, and the cambered surface is adapted to the outer wall surface of the steel pipe 301.
In use, the test piece 3 is pushed from four directions by the pushing plate 206 by simultaneously activating the four positioning cylinders 205, so that the test piece 3 can be positioned on the center point of the center ring seat 201.
The above embodiments are only preferred embodiments of the present utility model, and should not be construed as limiting the present utility model, and the scope of the present utility model should be defined by the claims, including the equivalents of the technical features in the claims. I.e., equivalent replacement modifications within the scope of this utility model are also within the scope of the utility model.
Claims (8)
1. An assembled steel-pipe pile stake core cap wet node adhesion testing arrangement, characterized by: including support frame (1) and testboard (2), be provided with hydraulic cylinder body (4) on the interior roof of support frame (1), testboard (2) are located hydraulic cylinder body (4) under, the output of hydraulic cylinder body (4) is provided with conflict seat (5), test piece (3) have been placed on testboard (2), test piece (3) include steel pipe (301), built-in precast pile core cap (302) of steel pipe (301) center department, and set up bonding mortar (303) between precast pile core cap (302) and steel pipe (301), the center department of testboard (2) is provided with centre bore (202) that the diameter is the same with steel pipe (301) internal diameter.
2. The device for testing the binding force of the wet joint of the pile core cap of the fabricated steel pipe pile according to claim 1, which is characterized in that: the outside of steel pipe (301) is provided with concrete ultrasonic detector (6) that are used for detecting bonding mortar (303).
3. The device for testing the binding force of the wet node of the pile core cap of the fabricated steel pipe pile according to claim 1 or 2, which is characterized in that: the support frame (1) comprises four support columns (11), a top plate (12) arranged at the top ends of the four support columns (11), and four installation embedded parts (14) which are embedded underground and are respectively positioned at the lower ends of the four support columns (11), wherein fixed feet (13) connected with the installation embedded parts (14) are respectively arranged at two opposite sides of the bottom of the support column (11).
4. The device for testing the binding force of the wet joint of the pile core cap of the assembled steel pipe pile according to claim 3, which is characterized in that: the mounting embedded part (14) comprises an embedded bottom plate (141) and a plurality of connecting screws (143) which are arranged on the embedded bottom plate (141) and extend upwards, the fixing feet (13) are provided with through holes for the connecting screws (143) to pass through, and the top threads of the connecting screws (143) are provided with fixing nuts (144) for locking the fixing feet (13).
5. The device for testing the binding force of the wet joint of the pile core cap of the assembled steel pipe pile according to claim 4, which is characterized in that: the embedded bottom plate (141) is provided with sliding grooves (142) the same as the connecting screws (143) in number, the bottom ends of the connecting screws (143) are inserted into the corresponding sliding grooves (142), and two locking nuts (147) respectively positioned on the upper side and the lower side of the embedded bottom plate (141) are arranged outside the connecting screws (143).
6. The device for testing the binding force of the wet joint of the pile core cap of the assembled steel pipe pile according to claim 5, which is characterized in that: the top of pre-buried bottom plate (141) is provided with stiffening plate (145), and stiffening plate (146) that are located pre-buried bottom plate (141) top edge department are connected with at the both ends of stiffening plate (145).
7. The device for testing the binding force of the wet node of the pile core cap of the fabricated steel pipe pile according to claim 1 or 2, which is characterized in that: the test bench (2) comprises a central ring seat (201) arranged right below the collision seat (5) and four extending blocks (203) which are annularly arranged outside the central ring seat (201) at equal intervals and extend outwards, wherein a central hole (202) is formed in the middle of the central ring seat (201), and positioning mechanisms are arranged at the tops of the four extending blocks (203).
8. The device for testing the binding force of the wet joint of the pile core cap of the assembled steel pipe pile according to claim 7, which is characterized in that: the positioning mechanism comprises a supporting seat (204) arranged at the top of the extending block (203), a positioning oil cylinder (205) arranged on the supporting seat (204) and with an output end towards the center of the center ring seat (201), and a pushing plate (206) arranged on the output end of the positioning oil cylinder (205), wherein one side of the pushing plate (206) facing the center ring seat (201) is an arc surface, and the arc surface is matched with the outer wall surface of the steel pipe (301).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321765268.5U CN220284895U (en) | 2023-07-06 | 2023-07-06 | Wet node adhesion testing arrangement of assembled steel-pipe pile stake core cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321765268.5U CN220284895U (en) | 2023-07-06 | 2023-07-06 | Wet node adhesion testing arrangement of assembled steel-pipe pile stake core cap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220284895U true CN220284895U (en) | 2024-01-02 |
Family
ID=89326505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321765268.5U Active CN220284895U (en) | 2023-07-06 | 2023-07-06 | Wet node adhesion testing arrangement of assembled steel-pipe pile stake core cap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220284895U (en) |
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2023
- 2023-07-06 CN CN202321765268.5U patent/CN220284895U/en active Active
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