CN212896516U - Novel experimental dowel bar anchor clamps of combination formula anchor pile - Google Patents

Novel experimental dowel bar anchor clamps of combination formula anchor pile Download PDF

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Publication number
CN212896516U
CN212896516U CN202021580676.XU CN202021580676U CN212896516U CN 212896516 U CN212896516 U CN 212896516U CN 202021580676 U CN202021580676 U CN 202021580676U CN 212896516 U CN212896516 U CN 212896516U
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China
Prior art keywords
anchor
dowel
pile
steel
anchor pile
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Expired - Fee Related
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CN202021580676.XU
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Chinese (zh)
Inventor
马洪波
师占宾
杨鑫
许强强
张�杰
尹皓亮
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Gansu Academy Of Building Science Co ltd
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Gansu Academy Of Building Science Co ltd
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Abstract

The utility model relates to the technical field of anchor pile tests, in particular to a novel combined anchor pile test dowel fixture, which aims to overcome the defects of the prior art and provide a novel combined anchor pile test dowel fixture which can be suitable for different dowel forms of various pile types; the device comprises a test pile and four anchor piles, wherein the four anchor piles are arranged around the test pile, a jack is installed at the top of the test pile, a reaction frame is installed at the top of the jack, and the reaction frame is connected with the anchor piles through a dowel fixture; the beneficial effects are that: the utility model discloses experimental dowel bar anchor clamps of combination formula anchor pile through the horizontal high strength bolted connection, makes up the multi-disc customization steel sheet of vertically slotting, and upper and lower symmetry funnel groove arranges that built-in small-size clamping piece finely tunes different diameter dowel bars and anchor clamps laminating. The on-site operation is simple and convenient, the installation and the disassembly are rapid, and the pile can be suitable for different dowel bar forms of various pile types.

Description

Novel experimental dowel bar anchor clamps of combination formula anchor pile
Technical Field
The utility model relates to an anchor pile test technical field specifically is a novel experimental dowel anchor clamps of combination formula anchor pile.
Background
The anchor pile method is one of the static load test methods of the pile, and is widely applied to the field of the detection of the bearing capacity of the foundation pile of the modern pile foundation building. The anchor pile counterforce beam device can be divided into two types according to the difference of counterforce anchors in specific application: the counterforce frame is connected with the anchor pile to provide counterforce, and is commonly called as an anchor pile counterforce beam device; several augers are drilled into the ground to provide counter force with ground anchors, commonly referred to as anchor bar counter force beam devices. The anchor pile counterforce beam device is characterized in that a plurality of anchor piles which are symmetrical around the tested pile are connected with a counterforce frame through anchor bars, the counterforce frame is jacked up by a jack of a pile top, and counterforce is provided by the connected anchor piles. The magnitude of the provided counter force is determined by the number of the anchor piles, the strength of the counter force frame and the uplift resistance of the connected anchor piles.
In the existing anchor pile method detection process, the connection of an anchor pile and a counter-force steel beam is mostly completed through pre-inserted steel bars in the anchor pile forming process, and the specific operation mode is anchor ring welding and integrated clamp mechanical connection. The anchor ring welding method, which is the most primitive connection method, is always dominant for a long time in the early application period of the anchor pile method, but the defects are obvious: first, the welding process takes too long. Along with the ascending of the height of an upper building, the geological environment tends to be complex, the characteristic value of a foundation pile is greatly improved compared with the characteristic value of the foundation pile in the past, more than 30 welding joints are usually generated in the detection process of each test pile, and the welding time is longer under the condition of meeting the requirement of double-side full welding with enough length; secondly, the requirements for field conditions are harsh. The welding operation needs two professional and skilled welders and small steel bar preparing workers. The power supply is stabilized on site, and the cross construction requirement of the construction site is influenced. In rainy and snowy weather, electric shock hazard exists, welding cannot be performed, and the field test progress is delayed; thirdly, the material processing requirement is high, and waste is easy to generate. The anchor ring preparation needs the high-quality reinforcing bar of a certain quantity, if the dimensional deviation that corresponds the matching girder steel is great, can cause the uneven problem of dowel bar atress, causes the reinforcing bar to fracture in advance before the experimental limit value, influences the experimental result. After the test is finished, most of the anchor ring reinforcing steel bars reach the stress-strain limit state, and cannot be used as other construction material supplies, so that waste is caused. Although the integral type anchor clamps mechanical connection can avoid anchor ring welding method's partial defect to a great extent, it all need consume great manpower in installation, dismantlement and many stake types used repeatedly, and the size is heavy, and it is relatively poor to become the condition suitability.
Aiming at the defects pointed out in the prior art, a novel combined type anchor pile test dowel bar clamp is urgently needed to be researched, has the advantages of simple and convenient field operation and quick installation and disassembly, and can be suitable for different dowel bar forms of various pile types.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art not enough, provide a novel experimental dowel anchor clamps of combination formula anchor pile, can be applicable to the different dowel forms of multiple stake type.
In order to realize the purpose of the utility model, the utility model adopts the following technical scheme:
the utility model provides a novel experimental dowel steel anchor clamps of combination formula anchor pile, includes experimental stake 2 and four anchor piles 1, four anchor pile 1 arranges around experimental stake 2, jack 3 is installed at the top of experimental stake 2, reaction frame, its characterized in that are installed at the top of jack 3: the reaction frame is connected with the anchor pile 1 through a steel bar inserting clamp 6.
The reaction frame comprises a steel beam 4 and two distribution beams 5, the two distribution beams 5 are arranged at two ends of the upper surface of the steel beam 4, the middle of the lower surface of the steel beam 4 is in contact with the top of the jack 3, and two ends of the distribution beams 5 are respectively connected with four anchor piles 1 through dowel clamps 6.
The anchor pile is characterized in that prefabricated ribs 101 are arranged inside the anchor piles 1, two ends of the distribution beams 5 are respectively inserted into the middles of the prefabricated ribs 101 of the four anchor piles 1 corresponding to the two ends of the distribution beams, rib inserting clamps 6 are installed at the tops of the prefabricated ribs 101, and two ends of the distribution beams 5 are respectively fixed at the tops of the four anchor piles 1 corresponding to the two ends of the distribution beams through the rib inserting clamps 6.
The dowel bar clamp 6 comprises a plurality of steel plates 601, high-strength bolts 603, high-strength nuts 604 and clamps 606, longitudinal grooves 608 are formed in two end faces of the steel plates 601, the longitudinal grooves 608 of two adjacent steel plates 601 can form a channel penetrating through the precast bar 101, a first half funnel groove 609 is formed in the top of each longitudinal groove 608, a second half funnel groove 6010 is formed in the bottom of each longitudinal groove 608, and the half funnel grooves of two adjacent steel plates 601 can form a complete funnel groove for installing the clamps 606; a plurality of positioning holes 602 are formed in the end face of the steel plate 601, high-strength bolts 603 penetrate through the positioning holes 602 of the steel plate 601 in the transverse direction, and high-strength nuts 604 are connected to two ends of the high-strength bolts 603 in a threaded mode.
The steel plate 601 includes a middle plate and an edge plate.
The longitudinal groove 608 is semi-circular in cross-section.
The left and right sides of the steel plate 601 are connected with hanging rings 607.
Be provided with small-size clamping piece in anchor clamps 606, its effect lies in finely tuning different diameter dowel bars and anchor clamps laminating.
The beneficial effects of the utility model reside in that: the utility model discloses experimental dowel bar anchor clamps of combination formula anchor pile through the horizontal high strength bolted connection, makes up the multi-disc customization steel sheet of vertically slotting, and upper and lower symmetry funnel groove arranges that built-in small-size clamping piece finely tunes different diameter dowel bars and anchor clamps laminating. The on-site operation is simple and convenient, the installation and the disassembly are rapid, and the pile can be suitable for different dowel bar forms of various pile types.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of a partial structure of the present invention;
fig. 3 is a partial enlarged view of a portion a in fig. 2 according to the present invention;
fig. 4 is a front view of fig. 2 in the present invention;
fig. 5 is a partial enlarged view of the position B in fig. 4 according to the present invention;
FIG. 6 is a schematic structural view of the middle plate of the present invention;
fig. 7 is a schematic structural view of the middle plate of the present invention.
Shown in the figure: the device comprises anchor piles 1, test piles 2, jacks 3, steel beams 4, distribution beams 5, a steel bar inserting clamp 6, prefabricated steel bars 101, steel plates 601, positioning holes 602, high-strength bolts 603, high-strength nuts 604, gaps 605, clamps 606, hanging rings 607, longitudinal grooves 608, first half funnel grooves 609 and second half funnel grooves 6010.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
Example 1:
the utility model provides a novel experimental dowel anchor clamps of combination formula anchor pile, as shown in fig. 1, fig. 2 and fig. 4, including experimental stake 2 and four anchor piles 1, four anchor piles 1 arranges around experimental stake 2, jack 3 is installed at the top of experimental stake 2, reaction frame, its characterized in that are installed at jack 3's top: the reaction frame is connected with the anchor pile 1 through a steel bar inserting clamp 6.
The reaction frame comprises a steel beam 4 and two distribution beams 5, the two distribution beams 5 are arranged at two ends of the upper surface of the steel beam 4, the middle of the lower surface of the steel beam 4 is in contact with the top of the jack 3, and two ends of the distribution beams 5 are respectively connected with four anchor piles 1 through dowel clamps 6.
The anchor pile is characterized in that prefabricated ribs 101 are arranged inside the anchor piles 1, two ends of the distribution beams 5 are respectively inserted into the middles of the prefabricated ribs 101 of the four anchor piles 1 corresponding to the two ends of the distribution beams, rib inserting clamps 6 are installed at the tops of the prefabricated ribs 101, and two ends of the distribution beams 5 are respectively fixed at the tops of the four anchor piles 1 corresponding to the two ends of the distribution beams through the rib inserting clamps 6.
As shown in fig. 3, 5 and 6, the dowel fixture 6 includes a plurality of steel plates 601, a high-strength bolt 603, a high-strength nut 604 and a fixture 606, two end faces of the plurality of steel plates 601 are provided with longitudinal grooves 608, the longitudinal grooves 608 of two adjacent steel plates 601 can form a passage passing through the precast bar 101, the top of the longitudinal groove 608 is provided with a first half funnel groove 609, the bottom of the longitudinal groove 608 is provided with a second half funnel groove 6010, and the half funnel grooves of two adjacent steel plates 601 can form a complete funnel groove for installing the fixture 606; a plurality of positioning holes 602 are formed in the end face of the steel plate 601, high-strength bolts 603 penetrate through the positioning holes 602 of the steel plate 601 in the transverse direction, and high-strength nuts 604 are connected to two ends of the high-strength bolts 603 in a threaded mode.
The steel plate 601 includes a middle plate and an edge plate.
The longitudinal groove 608 is semi-circular in cross-section.
The left and right sides of the steel plate 601 are connected with hanging rings 607.
The utility model discloses a working process does: firstly, a reaction frame consisting of a steel beam 4 and a distribution beam 5 is installed on an anchor pile 1 through a dowel fixture 6, then a jack 3 is placed between a test pile 2 and the reaction frame, and then the jack 3 is started to detect the test pile 2.
In the process of connecting the reaction frame and the anchor pile 1 together through the dowel fixture 6, firstly, the end part of the distribution beam 5 is inserted into the prefabricated rib 101 of the anchor pile 1 corresponding to the distribution beam, and then a plurality of steel plates 601 are arranged between the prefabricated ribs 101, so that the prefabricated ribs 101 are arranged in a channel formed by longitudinal grooves 608 of two adjacent steel plates 601; then, a high-strength bolt 603 is arranged in a positioning hole in the steel plate 601 in a penetrating manner, and two ends of the high-strength bolt 603 are connected with high-strength nuts 604; the clamp 606 is then placed in the complete funnel groove formed by the half-funnel grooves 609 of the two adjacent steel plates 601, and the reaction frame and the anchor pile 1 are connected together by tightening the high-strength nut 604.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Moreover, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims (7)

1. The utility model provides a novel experimental dowel steel anchor clamps of combination formula anchor pile, includes experimental stake (2) and four anchor piles (1), four anchor pile (1) are arranged around experimental stake (2), jack (3) are installed at the top of experimental stake (2), reaction frame, its characterized in that are installed at the top of jack (3): the reaction frame is connected with the anchor pile (1) through a steel bar inserting clamp (6).
2. The novel combined anchor pile test dowel clamp of claim 1, wherein: the reaction frame comprises a steel beam (4) and two distribution beams (5), the two distribution beams (5) are arranged at two ends of the upper surface of the steel beam (4), the middle of the lower surface of the steel beam (4) is in contact with the top of the jack (3), and two ends of the distribution beams (5) are respectively connected with four anchor piles (1) through dowel clamps (6).
3. The novel combined anchor pile test dowel clamp of claim 2, wherein: the anchor pile is characterized in that prefabricated ribs (101) are arranged inside the anchor piles (1), two ends of the distribution beam (5) are respectively inserted into the middles of the prefabricated ribs (101) of the four anchor piles (1) corresponding to the distribution beam, the rib inserting clamps (6) are installed at the tops of the prefabricated ribs (101), and two ends of the distribution beam (5) are respectively fixed at the tops of the four anchor piles (1) corresponding to the distribution beam through the rib inserting clamps (6).
4. The novel combined anchor pile test dowel clamp of claim 3, wherein: the dowel bar clamp (6) comprises a plurality of steel plates (601), high-strength bolts (603), high-strength nuts (604) and clamps (606), longitudinal grooves (608) are formed in two end faces of the plurality of steel plates (601), the longitudinal grooves (608) of two adjacent steel plates (601) can form a channel penetrating through the precast bar (101), a first half funnel groove (609) is formed in the top of each longitudinal groove (608), a second half funnel groove (6010) is formed in the bottom of each longitudinal groove (608), and the half funnel grooves of two adjacent steel plates (601) can form a complete funnel groove for installing the clamps (606); the end face of the steel plate (601) is provided with a plurality of positioning holes (602), high-strength bolts (603) transversely penetrate through the positioning holes (602) of the steel plate (601), and high-strength nuts (604) are connected to two ends of the high-strength bolts (603) through threads.
5. The novel combined anchor pile test dowel clamp of claim 4, wherein: the steel plate (601) comprises a middle plate and a side plate.
6. The novel combined anchor pile test dowel clamp of claim 4, wherein: the cross section of the longitudinal groove (608) is semicircular.
7. The novel combined anchor pile test dowel clamp of claim 4, wherein: the left side surface and the right side surface of the steel plate (601) are connected with hanging rings (607).
CN202021580676.XU 2020-08-03 2020-08-03 Novel experimental dowel bar anchor clamps of combination formula anchor pile Expired - Fee Related CN212896516U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202021580676.XU CN212896516U (en) 2020-08-03 2020-08-03 Novel experimental dowel bar anchor clamps of combination formula anchor pile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202021580676.XU CN212896516U (en) 2020-08-03 2020-08-03 Novel experimental dowel bar anchor clamps of combination formula anchor pile

Publications (1)

Publication Number Publication Date
CN212896516U true CN212896516U (en) 2021-04-06

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Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (1)

Country Link
CN (1) CN212896516U (en)

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Granted publication date: 20210406