A prefabricated pipe pile pier temporary support device and a construction method thereof

Abstract

The application discloses a prefabricated pipe pile pier temporary supporting device and a construction method thereof. The temporary supporting device comprises a plurality of fixed sleeve pipes, each of which is provided with a first supporting assembly and a second supporting assembly. The first supporting assembly comprises an inclined supporting frame which is inclined to the length direction of the fixed sleeve pipe and is connected to both sides of the fixed sleeve pipe. The second supporting assembly comprises a horizontal connecting rod which is horizontally arranged and connected with the plurality of fixed sleeve pipes. The fixed sleeve pipe is used for sleeving the prefabricated pipe pile. The inclined supporting frame and the horizontal connecting rod apply mutual perpendicular supporting forces on the same horizontal plane to the fixed sleeve pipe, so that the fixed sleeve pipe is horizontally fixed, and then the prefabricated pipe pile is supported and fixed, so that the prefabricated pipe pile has higher stability and is not easy to deform.

Description

Technical Field

[0001] This invention relates to the field of bridge construction technology, specifically to a temporary support device for precast pipe pile piers and its construction method. Background Technology

[0002] At present, the piers and abutments of traffic bridges are generally made of concrete, which requires a large amount of steel reinforcement and takes a long time to construct.

[0003] Precast piles are piles of various materials and forms (such as wooden piles, concrete square piles, prestressed concrete pipe piles, steel piles, etc.) manufactured in factories or on construction sites. These piles are then driven, pressed, or vibrated into the soil using pile driving equipment. In China's construction industry, the most commonly used precast piles are mainly precast concrete piles and steel piles. Bridge piers and abutments for traffic bridges are constructed using a combination of precast pipe piles and concrete. Due to the long concrete curing time, insufficient support may cause the precast pipe piles to deform or bend during the solidification process of the bridge piers and abutments. Summary of the Invention

[0004] The purpose of this invention is to propose a temporary support device for precast pipe pile piers and its construction method, aiming to solve the technical problem that existing precast pipe piles deform due to insufficient support force during concrete forming.

[0005] To achieve the above objectives, the present invention proposes a temporary support device for precast pipe pile piers, comprising multiple fixed sleeves, each of which is provided with a first support component and a second support component;

[0006] The first support assembly includes an inclined support frame that is inclined along the length direction of the fixed sleeve and connected to both sides of the fixed sleeve;

[0007] The second support assembly includes a horizontally arranged horizontal connecting rod that is connected to the plurality of fixed sleeves; wherein,

[0008] The inclined support frame and the horizontal connecting rod apply mutually perpendicular supporting forces on the same horizontal plane to fix the fixed sleeve, so as to fix the fixed sleeve horizontally.

[0009] As a further improvement of the present invention: the first support assembly further includes a second connecting plate, one end of which is welded to the fixed sleeve, and the other end of which is detachably connected to the inclined support frame.

[0010] As a further improvement of the present invention: the second support component includes a first connecting plate, one end of which is welded to the fixed sleeve, and the other end of which is detachably connected to the horizontal connecting rod.

[0011] As a further improvement of the present invention: the temporary support device for the precast pipe pile pier further includes a protective sleeve, which is connected inside the fixed sleeve and is used to install the precast pipe pile.

[0012] As a further improvement of the present invention: the fixing sleeve is connected with a compression bolt, one end of which abuts against the protective sleeve.

[0013] As a further improvement of the present invention: an inner gasket is provided between the fixing sleeve and the protective sleeve.

[0014] As a further improvement of the present invention: the second connecting plate is provided with high-strength bolts, and the second connecting plate is detachably connected to the inclined support frame through the high-strength bolts.

[0015] As a further improvement of the present invention: the inclined support frame includes a first support steel and a second support steel coaxially connected, the second support steel is hollow, one end of the second support steel is connected to the fixed sleeve, and the other end of the second support steel is movably connected to the first support steel by threads or pins.

[0016] As a further improvement of the present invention: a stress strain gauge is embedded in the fixed sleeve on one side near the second support steel.

[0017] This invention also proposes a construction method for a temporary support device for precast pipe pile piers, comprising the following steps:

[0018] Based on the stress analysis of the vertical connection of the precast pipe piles, multiple telescopic inclined support frames are customized. At the same time, multiple fixed sleeves are made according to the size of the precast pipe piles, as well as inner gaskets, extrusion bolts, first connecting plates, and second connecting plates corresponding to each fixed sleeve.

[0019] The fixing sleeve is fitted onto the precast pipe pile;

[0020] Calculate the support height of the precast pipe pile, connect the fixing sleeve with the extrusion bolt and abut against the precast pipe pile, so that the fixing sleeve is fixed to the precast pipe pile;

[0021] Multiple inclined support frames are connected by the first connecting plate, so that one end of each inclined support frame abuts the ground.

[0022] Based on the stress parameters of multiple stress strain gauges embedded in the fixed sleeve and corresponding one-to-one with the multiple inclined support frames, the length of each of the inclined support frames is adjusted so that the stress parameters of the multiple stress strain gauges are consistent.

[0023] The horizontal connecting rod is laid horizontally and connected to each of the aforementioned fixed sleeves.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] This technical solution uses an inclined support frame and a horizontal connecting rod to connect a fixed sleeve to a temporary support device for precast pipe pile piers. The fixed sleeve is used to install the precast pipe pile. The inclined support frame and the horizontal connecting rod apply mutually perpendicular support forces to the fixed sleeve on the same horizontal plane, which can fix the fixed sleeve horizontally, thereby supporting and fixing the precast pipe pile, making the precast pipe pile more stable and less prone to deformation. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0027] Figure 1 This is a top view of an embodiment of the precast pipe pile pier temporary support device of the present invention;

[0028] Figure 2 This is a front view of an embodiment of the precast pipe pile pier temporary support device of the present invention;

[0029] Figure 3 This is a side view of an embodiment of the precast pipe pile pier temporary support device of the present invention.

[0030] Explanation of icon numbers:

[0031] label name label name 1 Precast pipe piles 2 Inclined support frame 3 Protective sleeve 4 Horizontal connecting rod 5 Fixed sleeve 61 First connecting plate 62 Second connecting plate 7 Extrusion bolts 8 High-strength bolts 9 Inner gasket

[0032] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0035] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0036] Please see Figures 1-3 This technical solution provides a temporary support device for precast pipe pile piers. In one embodiment, the temporary support device for precast pipe pile piers includes multiple fixed sleeves 5, and each fixed sleeve 5 is provided with a first support component and a second support component.

[0037] The first support assembly includes an inclined support frame 2 that is inclined along the length direction of the fixed sleeve 5 and connected to both sides of the fixed sleeve 5;

[0038] The second support assembly includes a horizontally arranged horizontal connecting rod 4 that is connected to the plurality of fixed sleeves 5; wherein,

[0039] The inclined support frame 2 and the horizontal connecting rod 4 apply mutually perpendicular supporting forces on the same horizontal plane to fix the fixed sleeve 5, so that the fixed sleeve 5 is horizontally fixed.

[0040] Specifically, the horizontal connecting rod 4 is made of I-beam. In this technical solution, the inclined support frame 2 of the temporary support device for precast pipe pile piers is connected to the horizontal connecting rod 4 to the fixed sleeve 5. The fixed sleeve 5 is used to mount the precast pipe pile 1. The inclined support frame 2 and the horizontal connecting rod 4 apply mutually perpendicular supporting forces on the fixed sleeve 5 on the same horizontal plane, which can fix the fixed sleeve 5 horizontally, thereby supporting and fixing the precast pipe pile 1, making the precast pipe pile 1 more stable and less prone to deformation.

[0041] Furthermore, in one embodiment, the first support assembly further includes a second connecting plate 62, one end of which is welded to the fixed sleeve 5, and the other end of which is detachably connected to the inclined support frame 2. Specifically, the second connecting plate 62 is provided with high-strength bolts 8, and the second connecting plate 62 is detachably connected to the inclined support frame 2 via the high-strength bolts 8.

[0042] Furthermore, in one embodiment, the second support component includes a first connecting plate 61, one end of which is welded to the fixed sleeve 5, and the other end of which is detachably connected to the horizontal connecting rod 4.

[0043] Furthermore, in one embodiment, the temporary support device for the precast pipe pile pier further includes a protective sleeve 3, which is connected inside the fixed sleeve 5 and is used to mount the precast pipe pile 1.

[0044] Specifically, the protective sleeve 3 is longer than the fixed sleeve 5, and the contact area between the protective sleeve 3 and the precast pipe pile 1 is larger. This can prevent the force of the inclined support frame 2 and the horizontal connecting rod 4 from being concentrated on a certain area of ​​the precast pipe pile 1 through the fixed sleeve 5, thus avoiding excessive force and damage to the precast pipe pile 1. The protective sleeve 3 can apply the force evenly to the precast pipe pile 1 over a larger area.

[0045] Furthermore, in one embodiment, the fixing sleeve 5 is connected to a clamping bolt 7, one end of which abuts against the protective sleeve 3. Specifically, when installing the fixing sleeve 5, by connecting the clamping bolt 7, the clamping bolt 7 extends into the fixing sleeve 5 and abuts against the protective sleeve 3, so that the fixing sleeve 5 can be fixed on the protective sleeve 3, thereby facilitating the installation of the inclined support frame 2.

[0046] Furthermore, in one embodiment, an inner gasket 9 is provided between the fixing sleeve 5 and the protective sleeve 3. Specifically, the inner gasket 9 is used to increase the contact area, so that the pressure applied by the clamping bolt 7 has a larger area and the force is more evenly distributed.

[0047] Further, in one embodiment, the inclined support frame 2 includes a first support steel and a second support steel (not shown) coaxially connected. The second support steel is hollow, with one end connected to the fixed sleeve 5, and the other end movably connected to the first support steel via threads or a pin. A strain gauge is embedded in the fixed sleeve 5 near the second support steel. In this embodiment, multiple strain gauges are embedded in the fixed sleeve and correspond one-to-one with multiple inclined support frames. During use, the length of each inclined support frame is adjusted according to its stress parameters to ensure that the stress parameters of multiple strain gauges are consistent, thereby ensuring the stress balance of the fixed sleeve 5. Therefore, in cases of uneven ground, the inclined support frame 2 with adjustable telescopic length is connected to the fixed sleeve 5, and strain gauges are embedded in the fixed sleeve 5, making the length adjustment of the inclined support frame 2 more precise and the stress more balanced, which is beneficial for the fixed sleeve 5 and the precast pipe pile 1 to be on the same axis.

[0048] Based on the above-described embodiment of the temporary support device for precast pipe pile piers, this technical solution also provides a construction method for the temporary support device for precast pipe pile piers, including the following steps:

[0049] S1: Based on the stress analysis of the vertical connection of the precast pipe pile 1, multiple telescopic inclined support frames 2 are customized. At the same time, multiple fixed sleeves 5 are made according to the size of the precast pipe pile 1, as well as inner gaskets 9, extrusion bolts 7, first connecting plates 61 and second connecting plates 62 corresponding to each fixed sleeve 5.

[0050] S2: The fixing sleeve 5 is fitted onto the precast pipe pile 1;

[0051] S3: Calculate the support height of the precast pipe pile 1, connect the fixing sleeve 5 with the extrusion bolt 7 and abut against the precast pipe pile 1, so that the fixing sleeve 5 is fixed on the precast pipe pile 1;

[0052] S4: Connect multiple inclined support frames 2 through the first connecting plate 61, so that one end of the inclined support frame 2 abuts the ground;

[0053] Based on the stress parameters of multiple stress strain gauges embedded in the fixed sleeve 5 and corresponding one-to-one with the multiple inclined support frames 2, the length of each of the inclined support frames 2 is adjusted so that the stress parameters of the multiple stress strain gauges are consistent.

[0054] S5: Lay the horizontal connecting rod 4 horizontally and connect it to each of the fixed sleeves 5.

[0055] The above description is merely an optional embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A temporary support device for precast pipe pile piers, characterized in that, It includes multiple fixed sleeves, and each fixed sleeve is provided with a first support component and a second support component; The first support assembly includes an inclined support frame that is inclined along the length direction of the fixed sleeve and connected to both sides of the fixed sleeve; The second support assembly includes a horizontally arranged horizontal connecting rod that is connected to the plurality of fixed sleeves; wherein, The inclined support frame and the horizontal connecting rod apply mutually perpendicular supporting forces on the same horizontal plane to fix the fixed sleeve, so as to fix the fixed sleeve horizontally.

2. The temporary support device for precast pipe pile piers according to claim 1, characterized in that, The first support assembly further includes a second connecting plate, one end of which is welded to the fixed sleeve, and the other end of which is detachably connected to the inclined support frame.

3. The temporary support device for precast pipe pile piers according to claim 1, characterized in that, The second support assembly includes a first connecting plate, one end of which is welded to the fixed sleeve, and the other end of which is detachably connected to the horizontal connecting rod.

4. The temporary support device for precast pipe pile piers according to claim 1, characterized in that, The temporary support device for the precast pipe pile pier also includes a protective sleeve, which is connected inside the fixed sleeve and is used to install the precast pipe pile.

5. The temporary support device for precast pipe pile piers according to claim 4, characterized in that, The fixing sleeve is connected to a compression bolt, one end of which abuts against the protective sleeve.

6. The temporary support device for precast pipe pile piers according to claim 4, characterized in that, An inner gasket is provided between the fixing sleeve and the protective sleeve.

7. The temporary support device for precast pipe pile piers according to claim 2, characterized in that, The second connecting plate is equipped with high-strength bolts, and the second connecting plate is detachably connected to the inclined support frame through the high-strength bolts.

8. The temporary support device for precast pipe pile piers according to claim 1, characterized in that, The inclined support frame includes a first support steel and a second support steel coaxially connected. The second support steel is hollow. One end of the second support steel is connected to the fixed sleeve, and the other end of the second support steel is movably connected to the first support steel by threads or pins.

9. The temporary support device for precast pipe pile piers according to claim 8, characterized in that, A stress strain gauge is embedded in the fixed sleeve on one side near the second support steel.

10. A construction method for a temporary support device for precast pipe pile piers, characterized in that, Includes the following steps: Based on the stress analysis of the vertical connection of the precast pipe piles, multiple telescopic inclined support frames are customized. At the same time, multiple fixed sleeves are made according to the size of the precast pipe piles, as well as inner gaskets, extrusion bolts, first connecting plates, and second connecting plates corresponding to each fixed sleeve. The fixing sleeve is fitted onto the precast pipe pile; Calculate the support height of the precast pipe pile, connect the fixing sleeve with the extrusion bolt and abut against the precast pipe pile, so that the fixing sleeve is fixed to the precast pipe pile; Multiple inclined support frames are connected by the second connecting plate, so that one end of each inclined support frame abuts the ground; Based on the stress parameters of multiple stress strain gauges embedded in the fixed sleeve and corresponding one-to-one with the multiple inclined support frames, the length of each of the inclined support frames is adjusted so that the stress parameters of the multiple stress strain gauges are consistent. The horizontal connecting rod is laid horizontally and connected to each of the aforementioned fixed sleeves.

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