Connecting device for beam manufacturing pedestal and steel pipe pile

Abstract

The utility model discloses a connecting device for a beam manufacturing pedestal and a steel pipe pile, which belongs to the technical field of building construction, and adopts the technical scheme that the connecting device for the beam manufacturing pedestal and the steel pipe pile is characterized by comprising an n-shaped plate arranged on the periphery of the beam manufacturing pedestal, and the inner wall of the n-shaped plate is fixedly connected with the outer wall of the beam manufacturing pedestal; the lower ends of the two side plates of the n-shaped plate extend out of the beam manufacturing pedestal, the extending ends of the two side plates of the n-shaped plate are inserted into the upper portions of the two adjacent steel pipe piles respectively and welded to the inner walls of the steel pipe piles, and the welding length of the side plates and the inner walls of the steel pipe piles is larger than 200 mm. The bundling type square pile connecting device has the advantages of being simple in structure, convenient to use and low in cost, and the steel pipe piles can be effectively connected with the bundling type square pile through welding of the connecting pieces and the n-shaped plates with the steel pipe piles respectively.

Description

Technical Field

[0001] The utility model belongs to the technical field of building construction, and particularly relates to a connecting device between a beam-making pedestal and a steel pipe pile. Background Art

[0002] Whether the connection between the beam pedestal and the steel pipe pile is stable is directly related to the safety of the entire bridge structure. If the connection is not firm, it may cause the bridge structure to become loose, displaced or tilted, thus affecting the bearing capacity and safety of the bridge. The commonly used connection method is usually bolt connection, which reserves screw holes on the beam pedestal and the steel pipe pile, and then uses bolts, nuts, washers and other accessories to tightly connect them together. This connection method is easy to install and disassemble, but the connection strength and stability are poor. Utility Model Content

[0003] The utility model aims to provide a connecting device between a beam-making pedestal and a steel pipe pile.

[0004] The utility model is realized through the following measures: a connecting device for a beam-making pedestal and a steel pipe pile, characterized in that it comprises an n-type plate arranged on the periphery of the beam-making pedestal, the inner wall of the n-type plate is fixedly connected to the outer wall of the beam-making pedestal, the lower ends of two side plates of the n-type plate extend out of the beam-making pedestal and the extended ends are respectively inserted into the upper parts of two adjacent steel pipe piles and welded to the inner walls of the steel pipe piles, and the welding length between the side plates and the inner walls of the steel pipe piles is greater than 200 mm.

[0005] A steel pad is arranged between the inner wall of the side plate and the outer wall of the beam-making pedestal, and the steel pad is fixedly connected to the side plate and the beam-making pedestal respectively.

[0006] Also included is a connecting piece located at the upper inner portion of the steel pipe pile;

[0007] The connecting piece is a rectangular steel plate symmetrically arranged outside the two side plates, one end of the rectangular steel plate is welded to the inner wall of the steel pipe pile, and the other end is welded to the side plate. The rectangular steel plate and the side plate form a cross-shaped plate to improve the connection strength and stability.

[0008] The height of the rectangular steel plate is the same as the length of the side plate inserted into the steel pipe pile.

[0009] It also includes a connecting piece located at the upper part of the inner part of the steel pipe pile, the connecting piece includes an annular steel plate, a rectangular plate connected to the inner wall of the annular steel plate, a notch for inserting the side plate is provided at the middle position of the rectangular plate, the side plate is welded to the inner wall of the notch, and the rectangular plate and the annular steel plate are respectively welded to the inner wall of the steel pipe pile. The rectangular plate and the side plate form a cross-shaped plate to improve the connection strength and stability, and the stability of the connection is further improved by the annular steel plate welded to the steel pipe pile.

[0010] The height of the rectangular plate is the same as the length of the side plate inserted into the steel pipe pile, and the height of the annular steel plate is 10mm-20mm.

[0011] The thickness of the n-type plate and the connecting member is greater than 20 mm.

[0012] Directions:

[0013] Before the construction of the connection device is carried out, the size of the beam-making pedestal needs to be designed according to the site requirements, and the steel pipe piles and the beam-making pedestal need to be constructed in advance.

[0014] Steel pipe pile construction: According to the design drawing of the beam pedestal, piles are driven into the predetermined position in advance. The steel pipe piles are made of spiral steel pipes with a diameter of 630mm, a wall thickness of 10mm, and a single raw material length of 9.0m. The total station is used for setting out and elevation measurement. The steel pipe piles are driven by a 50t crawler crane equipped with a DZ120A vibrating hammer. The hammer is pressed into the soil layer by the weight of the steel pipe pile and the pile hammer. The pile position and inclination are measured and re-measured. When the deviation meets the requirements, vibration sinking begins. When the steel pipe pile is driven to a pile top elevation of 50cm~80cm above the ground, the piles are connected. The piles are fixed firmly by spot welding and then fully welded.

[0015] Beam pedestal construction: beam pedestals generally use clustered square piles. Before construction, the bottom of the square piles is leveled and compacted. Eight PHS400 square piles are set on each pedestal foundation section. The length of a single square pile is 12m-15m. The square piles are extended with steel hoops and connecting pins. The square piles should be placed closely, and the gap between adjacent piles should not exceed 5mm. In order to increase the overall bending resistance of the foundation, epoxy resin glue is used to bond the upper and lower square piles.

[0016] According to the design drawing of clustered square piles, n-type steel plates and steel pads are prefabricated in the factory, and the steel pads are welded to both sides of the n-type steel plates, with 3 steel pads welded evenly on each side. The welded n-type steel plates are sleeved on the clustered square piles, and the ends of the n-type steel plates on both sides are respectively inserted into the spiral steel pipe. After the n-type steel plates are uniformly installed, the flatness and elevation of the steel plates are checked to ensure consistency.

[0017] Weld the connecting parts to the n-type steel plate, and weld each end to the inner wall of the spiral steel pipe. The welding length should be greater than 200mm, and the welds between the steel plates at the joints must be tightly attached.

[0018] The technical solution provided by the embodiment of the utility model has the beneficial effects of simple structure, easy use and low cost, and the steel pipe piles can be effectively connected to the clustered square piles by welding the connecting pieces and the n-type plates to the steel pipe piles respectively. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solution of the present utility model, a brief introduction will be given to the drawings used in the embodiments below. Obviously, the drawings listed below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model;

[0021] Figure 2 It is a schematic diagram of the structure of a rectangular steel plate and an n-type plate in an embodiment of the utility model;

[0022] Figure 3 It is a schematic diagram of the internal structure of the steel pipe pile in the embodiment of the utility model;

[0023] Figure 4 It is a schematic diagram of the structure in which the connecting piece in the embodiment of the utility model includes an annular steel plate;

[0024] Figure 5 It is a reference diagram of the use status in the embodiment of the utility model.

[0025] In the attached drawings, the components represented by the reference numerals are listed as follows: 4. n-type plate; 6. steel pad; 7. connector; 8. clustered square piles; 9. steel pipe piles. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail in combination with the embodiments below. Of course, the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0027] Embodiment 1:

[0028] See also Figure 1-Figure 5 A connecting device between a beam-making pedestal and a steel pipe pile, characterized in that it includes an n-type plate 4 arranged on the periphery of the beam-making pedestal, the inner wall of the n-type plate 4 is fixedly connected to the outer wall of the beam-making pedestal, the lower ends of the two side plates of the n-type plate 4 extend out of the beam-making pedestal and the extended ends are respectively inserted into the upper parts of two adjacent steel pipe piles 9 and welded to the inner walls of the steel pipe piles 9, and the welding length between the side plates and the inner walls of the steel pipe piles 9 is greater than 200 mm.

[0029] A steel pad 6 is provided between the inner wall of the side plate and the outer wall of the beam-making pedestal, and the steel pad 6 is fixedly connected to the side plate and the beam-making pedestal respectively.

[0030] It also includes a connecting member 7 located at the upper inner part of the steel pipe pile 9;

[0031] The connecting member 7 is a rectangular steel plate symmetrically arranged outside the two side plates, one end of the rectangular steel plate is welded to the inner wall of the steel pipe pile 9, and the other end is welded to the side plate. The rectangular steel plate and the side plate form a cross-shaped plate to improve the connection strength and stability.

[0032] The height of the rectangular steel plate is the same as the length of the side plate inserted into the steel pipe pile 9.

[0033] The thickness of the n-type plate 4 and the connecting member 7 is greater than 20 mm.

[0034] Directions:

[0035] Before the connection device is constructed, the size of the beam-making pedestal needs to be designed according to the site requirements, and the steel pipe piles 9 and the beam-making pedestal need to be constructed in advance.

[0036] Construction of steel pipe pile 9: According to the design drawing of the beam pedestal, piles are driven into the predetermined position in advance. Steel pipe pile 9 uses a spiral steel pipe with a diameter of 630mm. The wall thickness of steel pipe pile 9 is 10mm, and the length of a single raw material is 9.0m. The total station is used for setting out and elevation measurement. The steel pipe pile 9 is driven by a 50t crawler crane equipped with a DZ120A vibrating hammer. The hammer is pressed into the soil layer by the weight of the steel pipe pile 9 and the pile hammer. The pile position and inclination are measured and re-measured. After the deviation meets the requirements, vibration sinking begins. When the steel pipe pile 9 is driven to a pile top elevation of 50cm~80cm above the ground, the pile is connected. The pile connection is fixed firmly by spot welding and then fully welded.

[0037] Beam pedestal construction: beam pedestals generally use clustered square piles 8. Before construction, the bottom of the square piles is leveled and compacted. Each pedestal foundation section is equipped with 8 PHS400 square piles, and the length of a single square pile is 12m-15m. The square piles are extended with steel hoops and connecting pins. The square piles should be placed closely, and the gap between adjacent piles should not exceed 5mm. In order to increase the overall bending resistance of the foundation, epoxy resin glue is used to bond the upper and lower square piles.

[0038] According to the design drawing of clustered square piles 8, n-shaped steel plates and steel pads 6 are prefabricated in the factory, and the steel pads 6 are welded to both sides of the n-shaped steel plates, and three steel pads 6 are evenly welded on each side. The welded n-shaped steel plates are sleeved on the clustered square piles 8, and the ends of both sides of the n-shaped steel plates are respectively inserted into the spiral steel pipe. After the n-shaped steel plates are uniformly installed, the flatness and elevation of the steel plates are checked to ensure consistency.

[0039] Weld the connector 7 to the n-type steel plate, and weld each end to the inner wall of the spiral steel pipe. The welding length should be greater than 200mm, and the welds between the steel plates at the joints must be tightly attached.

[0040] Embodiment 2:

[0041] See also Figure 1-Figure 5A connecting device between a beam-making pedestal and a steel pipe pile, characterized in that it includes an n-type plate 4 arranged on the periphery of the beam-making pedestal, the inner wall of the n-type plate 4 is fixedly connected to the outer wall of the beam-making pedestal, the lower ends of the two side plates of the n-type plate 4 extend out of the beam-making pedestal and the extended ends are respectively inserted into the upper parts of two adjacent steel pipe piles 9 and welded to the inner walls of the steel pipe piles 9, and the welding length between the side plates and the inner walls of the steel pipe piles 9 is greater than 200 mm.

[0042] A steel pad 6 is provided between the inner wall of the side plate and the outer wall of the beam-making pedestal, and the steel pad 6 is fixedly connected to the side plate and the beam-making pedestal respectively.

[0043] It also includes a connecting member 7 located at the upper inner part of the steel pipe pile 9;

[0044] It also includes a connector 7 located at the upper part of the steel pipe pile 9, the connector 7 includes an annular steel plate, a rectangular plate connected to the inner wall of the annular steel plate, a notch for inserting the side plate is provided in the middle of the rectangular plate, the side plate is welded to the inner wall of the notch, and the rectangular plate and the annular steel plate are respectively welded to the inner wall of the steel pipe pile 9. The rectangular plate and the side plate form a cross-shaped plate to improve the connection strength and stability, and the stability of the connection is further improved by the annular steel plate welded to the steel pipe pile 9.

[0045] The height of the rectangular plate is the same as the length of the side plate inserted into the steel pipe pile 9, and the height of the annular steel plate is 10mm-20mm.

[0046] The thickness of the n-type plate 4 and the connecting member 7 is greater than 20 mm.

[0047] Directions:

[0048] Before the connection device is constructed, the size of the beam-making pedestal needs to be designed according to the site requirements, and the steel pipe piles 9 and the beam-making pedestal need to be constructed in advance.

[0049] Construction of steel pipe pile 9: According to the design drawing of the beam pedestal, piles are driven into the predetermined position in advance. Steel pipe pile 9 uses a spiral steel pipe with a diameter of 630mm. The wall thickness of steel pipe pile 9 is 10mm, and the length of a single raw material is 9.0m. The total station is used for setting out and elevation measurement. The steel pipe pile 9 is driven by a 50t crawler crane equipped with a DZ120A vibrating hammer. The hammer is pressed into the soil layer by the weight of the steel pipe pile 9 and the pile hammer. The pile position and inclination are measured and re-measured. After the deviation meets the requirements, vibration sinking begins. When the steel pipe pile 9 is driven to a pile top elevation of 50cm~80cm above the ground, the pile is connected. The pile connection is fixed firmly by spot welding and then fully welded.

[0050] Beam pedestal construction: beam pedestals generally use clustered square piles 8. Before construction, the bottom of the square piles is leveled and compacted. Each pedestal foundation section is equipped with 8 PHS400 square piles, and the length of a single square pile is 12m-15m. The square piles are extended with steel hoops and connecting pins. The square piles should be placed closely, and the gap between adjacent piles should not exceed 5mm. In order to increase the overall bending resistance of the foundation, epoxy resin glue is used to bond the upper and lower square piles.

[0051] According to the design drawing of clustered square piles 8, n-shaped steel plates and steel pads 6 are prefabricated in the factory, and the steel pads 6 are welded to both sides of the n-shaped steel plates, and three steel pads 6 are evenly welded on each side. The welded n-shaped steel plates are sleeved on the clustered square piles 8, and the ends of both sides of the n-shaped steel plates are respectively inserted into the spiral steel pipe. After the n-shaped steel plates are uniformly installed, the flatness and elevation of the steel plates are checked to ensure consistency.

[0052] Weld the connector 7 to the n-type steel plate, and weld each end to the inner wall of the spiral steel pipe. The welding length should be greater than 200mm, and the welds between the steel plates at the joints must be tightly attached.

[0053] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A connecting device between a beam-making pedestal and a steel pipe pile, characterized in that: It includes an n-type plate arranged on the periphery of a beam-making pedestal, the inner wall of the n-type plate is fixedly connected to the outer wall of the beam-making pedestal, the lower ends of two side plates of the n-type plate extend out of the beam-making pedestal, and the extended ends are respectively inserted into the upper parts of two adjacent steel pipe piles and welded to the inner walls of the steel pipe piles, and the welding length between the side plates and the inner walls of the steel pipe piles is greater than 200 mm.

2. The connection device according to claim 1, characterized in that: A steel pad is arranged between the inner wall of the side plate and the outer wall of the beam-making pedestal, and the steel pad is fixedly connected to the side plate and the beam-making pedestal respectively.

3. The connection device according to claim 1, characterized in that: Also included is a connecting piece located at the upper inner portion of the steel pipe pile; The connecting piece is a rectangular steel plate symmetrically arranged on the outside of the two side plates, one end of the rectangular steel plate is welded to the inner wall of the steel pipe pile, and the other end is welded to the side plate.

4. The connection device according to claim 3, characterized in that: The height of the rectangular steel plate is the same as the length of the side plate inserted into the steel pipe pile.

5. The connection device according to claim 1, characterized in that: It also includes a connecting piece located at the upper part of the steel pipe pile, the connecting piece includes an annular steel plate and a rectangular plate connected to the inner wall of the annular steel plate, a groove for inserting the side plate is provided in the middle position of the rectangular plate, the side plate is welded to the rectangular plate, and the rectangular plate and the annular steel plate are respectively welded to the inner wall of the steel pipe pile.

6. The connection device according to claim 5, characterized in that: The height of the rectangular plate is the same as the length of the side plate inserted into the steel pipe pile, and the height of the annular steel plate is 10mm-20mm.

7. The connection device according to any one of claims 1 to 6, characterized in that: The thickness of the n-type plate and the connecting member is greater than 20 mm.

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