Conical socket-type corbel, pier body equipped with the corbel and construction method thereof

Abstract

The present invention discloses a tapered socket-type corbel, which comprises: at least two steel rods, which are truncated cone-shaped, have a small end face and a large end face, the diameter of the small end face is smaller than the diameter of the large end face; a corbel body, which comprises a vertical plate and a horizontal plate connected vertically, the vertical plate is provided with inclined holes which are the same in number as the steel rods; the minimum aperture of the inclined hole is between the diameter of the small end face and the diameter of the large end face; wherein the steel rod is inserted into the inclined hole. The present invention also discloses a pier body installed with the tapered socket-type corbel as described above and a construction method thereof. The steel rod of the present invention is inserted into the inclined hole along the inclined direction of the inclined hole, and abuts against the vertical plate on the pier body, which can resist eccentric torque, can be quickly installed and removed, and can be repeatedly used.

Description

Technical Field

[0001] The invention relates to the technical field of bridge construction, and in particular to a tapered socket-type corbel, a pier body equipped with the corbel and a construction method thereof. Background Art

[0002] When bridge cap beams, tie beams, tower column beams, etc. are constructed using the bracket method, the devices used to bear the vertical force include horizontal straight steel bars, steel brackets, embedded parts welding, etc. However, the structures of these devices all have some disadvantages.

[0003] When the horizontally inserted steel rod is in use, there is a large eccentricity, which leads to excessive bending moment of the horizontally inserted steel rod; at the same time, the diameter of the embedded pipe is larger than the diameter of the steel rod. When the steel rod is in use, the local stress concentration of the concrete at the edge of the embedded pipe is also more obvious.

[0004] The bearing capacity of steel corbels is relatively large, but the space required for pre-embedding is also large, and more steel bars will be cut off during construction, which also makes subsequent recovery difficult.

[0005] The welding of embedded parts is a high-altitude operation, and the quality of the welds is difficult to guarantee, and the embedded parts cannot be reused.

[0006] In view of the above-mentioned technical defects, it is urgent to develop a new type of bracket suitable for bracket construction. Summary of the invention

[0007] In view of the defects existing in the prior art, the purpose of the present invention is to provide a tapered socket-type corbel, a pier body equipped with the corbel and a construction method thereof, in which a steel rod is passed through the inclined hole along the inclined direction of the inclined hole and abuts against a vertical plate on the pier body, which can resist eccentric torque, can be quickly installed and removed, and can be used repeatedly.

[0008] To achieve the above objectives, in a first aspect, an embodiment of the present invention provides a tapered socket-type bracket, wherein the tapered socket-type bracket comprises:

[0009] At least two steel rods, which are truncated cone-shaped and have a small end surface and a large end surface, wherein the diameter of the small end surface is smaller than the diameter of the large end surface;

[0010] The corbel body comprises a vertical plate and a horizontal plate connected vertically, wherein the vertical plate is provided with inclined holes having the same number as the number of the steel bars; the minimum aperture of the inclined holes is between the diameter of the small end face and the diameter of the large end face;

[0011] Wherein, the steel rod is inserted into the inclined hole.

[0012] On the basis of the above technical solution, the number of the inclined holes is two, and the line connecting the center points of the two inclined holes is parallel to the horizontal plate.

[0013] On the basis of the above technical solution, the vertical cross-section of the inclined hole is elliptical, and the inclined hole just matches the steel rod passing through the inclined hole.

[0014] Based on the above technical solution, a lifting lug is provided on the large end surface of the steel rod.

[0015] On the basis of the above technical solution, the corbel body further comprises:

[0016] At least one inclined plate, the inclined plate connects the vertical plate and the horizontal plate.

[0017] In a second aspect, an embodiment of the present invention further provides a pier body equipped with the above-mentioned tapered socket-type corbel, wherein the pier body comprises a pier body body and a tapered socket-type corbel installed on the pier body body, wherein the pier body body has an inclined embedded hole; the tapered socket-type corbel comprises:

[0018] At least two steel rods, which are truncated cone-shaped, have a small end face and a large end face, the diameter of the small end face is smaller than the diameter of the large end face; the steel rods are inserted into the embedded holes, and the slope of the embedded holes is the same as that of the steel rods, and the large end face is higher than the small end face in the vertical direction;

[0019] The corbel body comprises a vertical plate and a horizontal plate connected vertically; the vertical plate is provided with inclined holes having the same number as the steel rods, and the minimum aperture of the inclined holes is between the diameter of the small end face and the diameter of the large end face;

[0020] The two steel rods are inserted obliquely on the pier body through the corresponding inclined holes and abut against the vertical plate on the pier body. The horizontal plate of the corbel body is used to bear the load.

[0021] In a third aspect, an embodiment of the present invention further provides a construction method for a pier body equipped with a tapered socket-type corbel as described above, the construction method comprising the following steps:

[0022] A part of the steel rod is embedded in the pier body, and the steel rod is pulled out after the pier body is condensed, and a corresponding embedded hole is formed on the pier body, wherein the embedded hole is inclined downward;

[0023] The pulled-out steel rod is passed through the inclined hole on the vertical plate of the corbel body, and the pulled-out steel rod is inserted into the embedded hole until the vertical plate of the corbel body is closely attached to the pier body, so that the horizontal plate of the corbel body bears the load.

[0024] On the basis of the above technical solution, the construction method further comprises the following steps:

[0025] After the load is removed, the steel rod is pulled out again and separated from the corbel body and the pier body, and the steel rod and the corbel body are available for next use.

[0026] On the basis of the above technical solution, before embedding a part of the steel rod in the pier body, the construction method further comprises the following steps:

[0027] An insulating layer is coated on the steel rod.

[0028] On the basis of the above technical solution, a lifting lug is provided on the large end surface of the steel rod; the specific steps of pulling out the steel rod are:

[0029] The steel rod is pulled out using the lifting lugs.

[0030] Compared with the prior art, the advantages of the present invention are:

[0031] (1) The tapered socket-type corbel provided by the present invention comprises a steel rod and a corbel body. The steel rod is inserted into the inclined hole along the inclined direction of the inclined hole and can abut against the vertical plate on the pier body. The steel rod is obliquely inserted into the pier body. When the horizontal plate is subjected to load, the force is transmitted to the steel rod through the vertical plate. The steel rod locks the corbel body downward and reduces the gap between the steel rod and the reserved hole, thereby resisting vertical force and eccentric moment. The present invention can be quickly installed and removed, and can be repeatedly used, thereby reducing construction costs and improving utilization rate.

[0032] (2) In the present invention, the installation and disassembly methods of the tapered socket-type corbel are simple, and no other fasteners are required to fix the corbel body. The structure is simple, and a reserved hole is pre-set using a truncated cone-shaped steel rod. When the steel rod is inserted, the contact area between the steel rod and the concrete of the pier body can be ensured, and the steel structure of the pier body itself will not be damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 is a schematic front view of a steel rod in an embodiment of the present invention;

[0034] Figure 2 It is a right side schematic diagram of the corbel body in the embodiment of the present invention;

[0035] Figure 3 It is a front view schematic diagram of a tapered socket-type corbel installed on a pier body in an embodiment of the present invention;

[0036] Figure 4 It is a front view schematic diagram of the embedded steel rods on the pier body (the pier body formwork is not removed) in the embodiment of the present invention;

[0037] Figure 5 It is a front view schematic diagram of pulling out the steel rods pre-buried in the pier body (the pier body formwork is not removed) in the embodiment of the present invention;

[0038] Figure 6 It is a schematic diagram of the pier body in an embodiment of the present invention;

[0039] Figure 7 Schematic diagram of a tapered socket-type bracket in an embodiment of the present invention;

[0040] Figure 8 A schematic diagram of a steel rod being taken out from an inclined hole in an embodiment of the present invention;

[0041] In the figure: 1. steel rod; 11. small end face; 12. large end face; 13. lifting lug; 2. corbel body; 20. inclined hole; 21. vertical plate; 22. horizontal plate; 23. inclined plate; 3. pier body; 30. embedded hole; 4. pier body formwork. DETAILED DESCRIPTION

[0042] The present invention is further described in detail below through specific implementation examples in conjunction with the accompanying drawings.

[0043] Example

[0044] See also Figures 1-2 As shown, an embodiment of the present invention provides a tapered socket-type bracket, and the tapered socket-type bracket includes:

[0045] At least two steel rods 1, which are truncated cone-shaped, have a small end surface 11 and a large end surface 12, and the diameter of the small end surface 11 is smaller than the diameter of the large end surface 12;

[0046] The corbel body 2 comprises a vertical plate 21 and a horizontal plate 22 connected vertically, wherein the vertical plate 21 is provided with inclined holes 20 having the same number as the steel rods 1; the minimum aperture of the inclined holes 20 is between the diameter of the small end face 11 and the diameter of the large end face 12;

[0047] The steel rod 1 is inserted into the inclined hole 20 .

[0048] The working principle of the embodiment of the present invention is:

[0049] As shown in the figure, the embodiment of the present invention provides a tapered socket-type corbel, which is used to be installed on the pier body 3. The steel rod 1 is in a truncated cone shape, and the diameter of its large end face 12 is larger than the diameter of the small end face 11. After the steel rod 1 is inserted into the inclined hole 20 of the corbel body 2, it is inserted into the embedded hole 30 of the pier body 3. The slope of the embedded hole 30 is the same as that of the steel rod 1, that is, the profile of the embedded hole 30 and the steel rod 1 is roughly the same. When the steel rod 1 holds the corbel body 2 against the pier body 3, the cross plate 22 is supported. Load, the force exerted on the horizontal plate 22 is transmitted to the steel rod 1 through the vertical plate 21 in the form of vertical force. At this time, the vertical force exerted on the steel rod 1 is vertically downward, and the vertical force is decomposed, which has a component force into the pier body 3. Under the action of the vertical force, the steel rod 1 has a tendency to move downward or move downward, that is, the steel rod 1 can lock the corbel body 2 downward and reduce the gap with the reserved hole 30, which can resist the vertical force. The vertical plate 21 fits the side wall of the pier body 3 and can also resist the eccentric moment.

[0050] At the same time, in the embodiment of the present invention, the tapered socket-type corbel is more tightly locked to the pier body 3 under the action of load, and no other fasteners need to be added. The corbel body 2 can be loosened by pulling out the steel rod 1 in the opposite direction and applying force. It can be seen that the tapered socket-type corbel provided by the embodiment of the present invention is not only simple in structure, but also simple and easy to install or remove. In the whole process of installing or removing the corbel body 2, welding operation is not required, and the tapered socket-type corbel can be repeatedly used, which reduces the construction cost and improves the utilization rate.

[0051] like Figure 2 As shown, there are two inclined holes 20, and the center point connection line of the two inclined holes 20 is parallel to the cross plate 22. The two inclined holes 20 and the steel rod 1 can be used together to firmly fix the corbel body 2 on the pier body 3.

[0052] In order to better achieve the stable installation of the corbel body 2 on the pier body 3, the inclined hole 20 needs to fit with the steel rod 1 obliquely inserted in the embedded hole 30. Therefore, the vertical cross-section of the inclined hole 20 is elliptical, and the inclined hole 20 just fits with the steel rod 1 inserted in the inclined hole 20.

[0053] Furthermore, a lifting lug 13 is provided on the large end face 12 of the steel rod 1. The embedded hole 30 is formed by embedding the steel rod 1 in the pier body 3, which needs to be screwed out after the concrete of the pier body 3 is condensed. The lifting lug 13 is provided on the large end face 12 to facilitate screwing out the steel rod.

[0054] Preferably, the corbel body 2 further comprises at least one inclined plate 23, and the inclined plate 23 connects the vertical plate 21 and the horizontal plate 22. Figure 2As shown, the number of the inclined plates 23 is three, which can improve the load resistance capability of the corbel body 2 itself.

[0055] like Figure 3 As shown, an embodiment of the present invention further provides a pier body equipped with the above-mentioned tapered socket-type corbel, wherein the pier body comprises a pier body body 3 and a tapered socket-type corbel installed on the pier body body 3, wherein the pier body body 3 has an inclined embedded hole 30; the tapered socket-type corbel comprises:

[0056] At least two steel rods 1, which are truncated cone-shaped, have a small end face 11 and a large end face 12, the diameter of the small end face 11 is smaller than the diameter of the large end face 12; the steel rods 1 are inserted into the embedded holes 30, and the slope of the embedded holes 30 is the same as that of the steel rods 1, and the large end face 12 is higher than the small end face 11 in the vertical direction;

[0057] The corbel body 2 comprises a vertical plate 21 and a horizontal plate 22 connected vertically; the vertical plate 21 is provided with inclined holes 20 having the same number as the steel rods 1, and the minimum aperture of the inclined holes 20 is between the diameter of the small end face 11 and the diameter of the large end face 12;

[0058] The two steel rods 1 are inserted obliquely on the pier body 3 through the corresponding inclined holes 20 and abut against the vertical plates 21 on the pier body 3 . The horizontal plates 22 of the corbel body 2 are used to bear the load.

[0059] The specific implementation of a tapered socket corbel in a pier shaft provided by an embodiment of the present invention and provided with the tapered socket corbel has been described in detail in the above-mentioned corresponding tapered socket corbel embodiment, so it will not be repeated here.

[0060] In the embodiment of the present invention, the installation and disassembly method of the tapered socket-type corbel is simple, and no other fasteners are needed to fix the corbel body. The structure is simple, and a reserved hole is pre-set using a truncated cone-shaped steel rod. When the steel rod is inserted, the contact area between the steel rod and the concrete of the pier body can be ensured without damaging the steel structure of the pier body itself. The corbel can also be quickly installed and disassembled, and can be used repeatedly, thereby reducing construction costs and improving utilization rates.

[0061] The embodiment of the present invention further provides a construction method for the pier body with the tapered socket-type corbel installed as described above, the construction method comprising the following steps:

[0062] Step 1: pre-embed a portion of the steel rod 1 in the pier body 3, and pull out the steel rod 1 after the pier body 3 is solidified, and a corresponding pre-embedded hole 30 is formed on the pier body 3, wherein the pre-embedded hole 30 is inclined downward;

[0063] Step 2: Pass the pulled out steel rod 1 through the inclined hole 20 on the vertical plate 21 of the corbel body 2, and insert the pulled out steel rod 1 into the embedded hole 30 until the vertical plate 21 of the corbel body 2 fits tightly against the pier body 3, so that the horizontal plate 22 of the corbel body 2 can bear the load.

[0064] The construction method also includes a disassembly method of the tapered socket-type corbel, namely step 3: after the load is removed, the steel rod 1 is pulled out again and separated from the corbel body 2 and the pier body 3, and the steel rod 1 and the corbel body 2 are ready for next use.

[0065] Furthermore, before embedding a part of the steel rod 1 in the pier body 3, the construction method further comprises the step of: coating an isolation layer on the steel rod 1. The isolation layer can be a coated plastic film or a butter coating.

[0066] Specifically, a lifting lug 13 is provided on the large end surface 12 of the steel rod 1 ; the specific step of pulling out the steel rod 1 is: using the lifting lug 13 to pull out the steel rod.

[0067] The construction method of the embodiment of the present invention is explained below in conjunction with specific embodiments.

[0068] like Figures 4 to 8 As shown, the construction method comprises the following steps:

[0069] Step A1: Install the steel rod 1 on the pier body formwork 4, wherein the steel rod 1 is tilted in the form of a large end face 12 on the top and a small end face 11 on the bottom; pour concrete into the pier body formwork 4, and form the pier body 3 after solidification; see Figure 4 As shown;

[0070] Step A2: By using the lifting lug 13 on the large end face 12 of the steel rod 1 to pull out the steel rod, a pre-buried hole 30 is formed on the pier body 3; see Figure 5 As shown;

[0071] Step A3: Remove the pier body formwork 4, see Figure 6 As shown;

[0072] Step A4: insert the pulled-out steel rod 1 into the inclined hole 20 on the vertical plate 21 of the corbel body 2, and insert the pulled-out steel rod 1 into the embedded hole 30 until the vertical plate 21 of the corbel body 2 is closely attached to the pier body 3, so that the horizontal plate 22 of the corbel body 2 bears the load; see Figure 3 As shown;

[0073] Step A5: After removing the load, give the lug 13 on the steel bar 1 a reverse pulling force to loosen the bracket body 2 and the steel bar 1; take out the bracket body 2 and the steel bar 1, if the inclined hole 20 is close to the horizontal plate 22, Figures 7-8 As shown, the steel rod 1 can be taken out from the inclined hole 20 of the corbel body 2 by slightly tilting the steel rod 1; the steel rod 1 and the corbel body 2 are ready for next use.

[0074] In the embodiment of the present invention, the embedded hole 30 for inserting and installing the steel rod 1 is formed by embedding the steel rod 1, and the slope of the embedded hole 30 is the same as the side of the steel rod 1. After the corbel body 2 is installed on the pier body 3 through the steel rod 1, the steel rod 1 will move or have a tendency to move along the embedded hole 30 into the pier body 3 under the action of the load, so that the corbel body 2 can be installed on the pier body 3 more stably, and there is no need to use other fasteners. At the same time, the embedded hole 30 will not affect the arrangement of the steel bars in the pier body 3, and the contact area between the steel rod and the concrete of the pier body is guaranteed. The steel rod 1 can be easily pulled out of the embedded hole 30 by slightly loosening the steel rod 1, and the installation or disassembly method is also simple and easy to operate.

[0075] The present invention is not limited to the above-mentioned embodiments. For ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications are also considered to be within the scope of protection of the present invention. The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

Claims

1. A tapered socket-type bracket, characterized in that: The tapered socket-type bracket comprises: At least two steel rods (1) are truncated cone-shaped and have a small end surface (11) and a large end surface (12), wherein the diameter of the small end surface (11) is smaller than the diameter of the large end surface (12); The corbel body (2) comprises a vertical plate (21) and a horizontal plate (22) connected vertically, wherein the vertical plate (21) is provided with inclined holes (20) which are the same in number as the number of the steel bars (1); the minimum aperture of the inclined holes (20) is between the diameter of the small end face (11) and the diameter of the large end face (12); Wherein, the steel rod (1) is inserted into the inclined hole (20); The number of the inclined holes (20) is two, and the line connecting the center points of the two inclined holes (20) is parallel to the horizontal plate (22); The vertical cross section of the inclined hole (20) is elliptical, and the inclined hole (20) is exactly matched with the steel rod (1) passing through the inclined hole (20).

2. The tapered socket bracket according to claim 1, characterized in that: A lifting lug (13) is provided on the large end surface (12) of the steel rod (1).

3. The tapered socket bracket according to claim 1, characterized in that: The corbel body (2) further comprises: At least one inclined plate (23), the inclined plate (23) connecting the vertical plate (21) and the horizontal plate (22).

4. A pier body equipped with a tapered socket-type corbel as claimed in any one of claims 1 to 3, characterized in that: The pier body comprises a pier body body (3) and a tapered socket-type bracket installed on the pier body body (3), wherein the pier body body (3) has an inclined embedded hole (30); the tapered socket-type bracket comprises: At least two steel bars (1) are truncated cone-shaped and have a small end face (11) and a large end face (12), wherein the diameter of the small end face (11) is smaller than the diameter of the large end face (12); the steel bars (1) are inserted into the embedded holes (30), and the slope of the embedded holes (30) is the same as that of the steel bars (1), and the large end face (12) is higher than the small end face (11) in the vertical direction; The corbel body (2) comprises a vertical plate (21) and a horizontal plate (22) connected vertically; the vertical plate (21) is provided with inclined holes (20) which are the same in number as the number of the steel bars (1); the minimum aperture of the inclined holes (20) is between the diameter of the small end face (11) and the diameter of the large end face (12); The two steel bars (1) are inserted obliquely through the corresponding inclined holes (20) on the pier body (3), and abut against the vertical plate (21) on the pier body (3). The horizontal plate (22) of the corbel body (2) is used to bear the load.

5. A construction method for a pier body equipped with a tapered socket-type corbel as claimed in claim 4, characterized in that: The construction method comprises the following steps: A portion of the steel rod (1) is pre-buried in the pier body (3), and the steel rod (1) is pulled out after the pier body (3) is condensed, and a corresponding pre-buried hole (30) is formed on the pier body (3), wherein the pre-buried hole (30) is inclined downward; The pulled-out steel rod (1) is passed through the inclined hole (20) on the vertical plate (21) of the corbel body (2), and the pulled-out steel rod (1) is inserted into the embedded hole (30) until the vertical plate (21) of the corbel body (2) is closely attached to the pier body (3), so that the horizontal plate (22) of the corbel body (2) can bear the load.

6. The construction method according to claim 5, characterized in that: The construction method further comprises the following steps: After the load is removed, the steel rod (1) is pulled out again and separated from the corbel body (2) and the pier body (3). The steel rod (1) and the corbel body (2) are available for next use.

7. The construction method according to claim 5, characterized in that: Before pre-embedding a portion of the steel rod (1) in the pier body (3), the construction method further comprises the following steps: An insulating layer is coated on the steel rod (1).

8. The construction method according to claim 5, characterized in that: A lifting lug (13) is provided on the large end surface (12) of the steel rod (1); the specific steps of pulling out the steel rod (1) are: The steel rod is pulled out using the lifting lugs (13).

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