A height-adjusting support with a connection structure and a height-adjusting method

Abstract

A height-adjusting support with a connection structure and a height-adjusting method, comprising a support body arranged between a beam body and a pier, an embedded component embedded in the beam body and / or the pier, the upper surface and / or lower surface of the support body connected to the embedded component through a connection structure, and the surface of the support body without a connection structure is anchored to the beam body or the pier, the connection structure is realized by a connection component, and the connection component includes a force transmission key and a height-adjusting pad. The present invention uses a force transmission key to connect the support with a height-adjusting pad, a beam body or a pier, forming a new connection structure, which is convenient and reliable to operate, and can realize the height-adjusting function without increasing the support height or changing the support structure, thereby solving the problem of cost increase caused by increasing the height of the existing pad height-adjusting support. In addition, since bolt anchoring is not used, the problem of inability to adjust the height due to rust or damage of the bolts is solved.

Description

Technical Field

[0001] The invention relates to the field of bridge construction, in particular to a height-adjusting support with a connecting structure and a height-adjusting method. Background Art

[0002] After the completion of bridge construction, after a period of operation, the foundation of the bridge pier will generally settle. When the foundation settlement is large, it will inevitably cause the line on the bridge to be uneven. Therefore, when the bridge is built, the height adjustment bearings will be used in areas where settlement may occur. After the settlement occurs, the height of the bearings will be adjusted to compensate for the change in the bridge elevation. At present, there are four commonly used height adjustment methods for height adjustment bearings, including pad height adjustment, spiral height adjustment, filling height adjustment and wedge height adjustment. Since the pad height adjustment bearing does not require additional structure to be added to the bearing structure, pad height adjustment is currently the most widely used height adjustment method. Compared with the non-heightening bearing, the pad height adjustment bearing needs to increase the length of the anchor bolt to ensure a reasonable amount of bolt screwing. After the anchor bolt is lengthened, in order to ensure that the bearing can be removed during disassembly, the height of the bearing needs to be increased, which will inevitably lead to an increase in the cost of the bearing, thereby increasing the cost of bridge construction.

[0003] Application No. CN201710647223.0 discloses an anchoring device and height adjustment support suitable for beam bridges and a construction method thereof, wherein the height adjustment support comprises a support body, an embedded component, an anchoring device and a height adjustment pad. The anchoring device comprises an embedded steel plate, an anchor sleeve assembly, a screw, and a fastening nut. By removing the fastening nut, the screw can be completely screwed into the anchor sleeve assembly, and then the beam body is lifted to place the height adjustment pad between the support and the beam body, and then the screw is screwed out of the anchor sleeve assembly and fixed with a fastening nut, so that the pad type height adjustment can be completed without increasing the support height. The screw is a full-thread screw. Due to the need to transmit horizontal force, the thread teeth in contact with the upper seat plate of the support are at risk of being squeezed and damaged. After the thread teeth are squeezed and damaged, the screw cannot be completely screwed into the sleeve, so that the height adjustment cannot be completed. In addition, due to insufficient support height space, the screw cannot be taken out and replaced. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a height-adjusting support with a connecting structure and a height-adjusting method.

[0005] In order to achieve the above technical purpose, the technical scheme adopted is: a height-adjusting support with a connecting structure, provided with a support body arranged between a beam body and a pier, an embedded component embedded in the beam body and / or the pier, the upper surface and / or the lower surface of the support body is connected to the embedded component attached to it through the connecting structure, and the surface of the support body without a connecting structure is anchored to the beam body or the pier, the connecting structure is realized by a connecting component, the connecting component includes a force transmission key and a height-adjusting pad, slots A are opened on two or four symmetrical sides of the periphery of the support body, and the slots A are opened from the side surface of the support body toward the center of the support body, A slot B is provided on the surface of the embedded component corresponding to the upper or lower part of the slot A. According to the height adjustment gap between the upper surface and / or lower surface of the support body and the embedded component, a height adjustment pad matching the height adjustment gap is arranged between the support body and the embedded component, so that the upper and lower surfaces of the height adjustment pad are in contact with the support body and the embedded component. Through grooves are provided on two or four symmetrical sides of the periphery of the height adjustment pad corresponding to the slots A and B. The through grooves are provided from the side surface of the support body toward the center of the support body, and pass through the upper and lower surfaces of the height adjustment pad. The through grooves, slots A and slots B are assembled into a slot, and a force transmission key matching the slot is inserted into the slot.

[0006] The embedded components include embedded steel plates and anchor steel bars. The anchor steel bars are embedded in the beam body or pier as a whole, and their tail ends are connected to one side of the embedded steel plate embedded in the connecting beam body or pier, and the other side of the embedded steel plate is exposed from the beam body or pier.

[0007] The cross-sectional shape of the slot A is T-shaped, dovetail-shaped or rectangular.

[0008] The cross-sectional shape of the slot B is T-shaped, dovetail-shaped or rectangular.

[0009] The cross-sectional shape of the through slot is dovetail, T-shaped, cross-shaped or rectangular.

[0010] A threaded hole for installing a pull piece is arranged on the exposed end surface of the force transmission key.

[0011] A height-adjusting support with a connecting structure comprises the following steps:

[0012] Step 1: Before raising the support, measure the beam elevation to determine the required height adjustment of the support. The actual height adjustment of the support shall not exceed the designed height adjustment.

[0013] Step 2: Arrange the jack for the top beam at the dispatching support that needs to be raised. The maximum lifting force of the jack should be determined according to the design load of the support;

[0014] Step 3: loosen the buckling pressure of the adjacent sections of the track according to the design requirements;

[0015] Step 4: Take out the force transmission keys in slot A and slot B;

[0016] Step 5: Use the jack to lift the height adjustment support on the same pier. The height difference of the height adjustment support on the same pier should be less than 1mm. After the lifting height is 3-5mm higher than the required height adjustment, lock the jack and install temporary support.

[0017] Step 6: Insert the pre-prepared height adjustment pad that is consistent with the required height adjustment amount into the gap between the embedded component of the beam body and the height adjustment support, and finally insert the force transmission key that matches the slot;

[0018] Step 7: Remove the temporary support, return the oil to the jack and slowly lower the beam to make the support bear the pressure to complete the height adjustment.

[0019] The invention has the following beneficial effects: the invention uses a force transmission key to connect the support with the height-adjusting pad, beam body or pier, forming a new connection structure, which is convenient and reliable to operate, and can realize the height-adjusting function without increasing the support height or changing the support structure, thus solving the cost increase problem caused by the increase of the height of the existing pad height-adjusting support. In addition, since no bolt anchor connection is used, the problem of being unable to adjust the height due to rust or damage of the bolt is solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present invention;

[0021] Figure 2 This is a schematic structural diagram of Embodiment 2 of the present invention;

[0022] Figure 3 This is a schematic diagram of the structure of Embodiment 3 of the present invention;

[0023] Figure 4 This is a schematic structural diagram of Embodiment 4 of the present invention;

[0024] Figure 5 This is a schematic diagram of the structure of an additional height-adjusting pad in Example 1 of the present invention;

[0025] Figure 6 This is a schematic diagram of the structure of the beam after jacking up in Example 1 of the present invention;

[0026] Figure 7 It is a front view of the rectangular force transmission key structure of the present invention;

[0027] Figure 8 It is a side view of the rectangular force transmission key structure of the present invention;

[0028] Fig. 9 This is a front view of the I-shaped force transmission key structure of the present invention;

[0029] Fig.10 It is a side view of the I-shaped force transmission key structure of the present invention;

[0030] Fig.11 A top view of the structure of the slot A or slot B of the present invention;

[0031] Fig.12 This is a front view of the structure of slot A or slot B of the present invention;

[0032] Fig.13 Another structural top view of the slot A or slot B of the present invention;

[0033] Fig.14 Another structural front view of the slot A or slot B of the present invention;

[0034] Fig.15 This is a schematic diagram of the height adjustment pad structure of the present invention;

[0035] In the figure, 1. support body; 1-1. support upper plate; 1-2. support lower plate; 2. force transmission key; 3. embedded component; 3-1. embedded steel plate; 3-2. anchoring steel bar; 4. height adjustment pad; 5. beam body; 6. pier; 7. slot; 7-1. slot A; 7-2. slot B; 7-3. through slot. DETAILED DESCRIPTION

[0036] The present invention will be described below in conjunction with the accompanying drawings:

[0037] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, a height-adjusting support with a connecting structure is provided with a support body 1 arranged between a beam body 5 and a pier 6, an embedded component 3 is buried in the beam body 5 and / or the pier 6, the upper surface and / or the lower surface of the support body 1 is connected to the adjacent embedded component 3 through a connecting structure, and the surface of the support body 1 without a connecting structure is anchored to the beam body or the pier, that is, when the embedded component 3 is buried in the beam body, its bottom surface is exposed from the beam body, connected to the support through a connecting structure, and the lower part of the height-adjusting support is fixedly connected to the pier through an anchoring component; when the embedded component 3 is buried in the pier, its bottom surface is exposed from the beam body, connected to the support through a connecting structure, and the upper part of the height-adjusting support is fixedly connected to the beam body through an anchoring component, or connecting structures are provided between the beam body and the support, and between the pier and the support.

[0038] like Figure 5 , Fig.12 , Fig.14As shown, the connection structure is realized by a connection component, and the connection component includes a force transmission key 2 and a height adjustment pad 4. Slots A7-1 are opened on two or four symmetrical sides of the periphery of the support body 1, and the slot A7-1 is opened from the side surface of the support body 1 to the center direction of the support body 1. A slot B7-2 is opened on the surface of the corresponding embedded component 3 above or below the slot A7-1. The optimal opening direction is perpendicular to the center line direction. The slot A7-1 is opened downward from the surface of the support, and the slot B3-1 is opened upward from the exposed surface of the embedded component (taking the connection structure direction of the beam position as an example). According to the upper surface and / or The height adjustment gap (required height adjustment amount) between the lower surface and the embedded component 3, and the height adjustment pad 4 matched with the height adjustment gap are arranged between the support body 1 and the embedded component 3, so that the upper and lower surfaces of the height adjustment pad 4 are in contact with the support body 1 and the embedded component 3, and the outer symmetrical sides or four sides of the height adjustment pad 4 are provided with through grooves 7-3 corresponding to the slots A7-1 and B7-2, and the through grooves 7-3 are opened from the side surface of the support body 1 to the center direction of the support body 1, and pass through the upper and lower surfaces of the height adjustment pad 4, and the through grooves 7-3, the slots A7-1, and the slots B7-2 are assembled into slots 7, and the force transmission key 2 matching the slots 7 is inserted into the slots. The force transmission key 2 is inserted into the slot to connect the support body 1 with the embedded component 3 and the height adjustment pad 4, so as to play a force transmission role.

[0039] The embedded component 3 includes an embedded steel plate 3-1 and an anchor steel bar 3-2. The anchor steel bar 3-2 is embedded in the beam or pier as a whole, and its tail end is welded to one side of the embedded steel plate 3-1 embedded in the connecting beam or pier, and the other side of the embedded steel plate 3-1 is exposed from the beam or pier.

[0040] The cross-sectional shape of the slot A7-1 is T-shaped, dovetail-shaped or rectangular. The cross-sectional shape of the slot B7-2 is T-shaped, dovetail-shaped or rectangular. The cross-sectional shape of the through slot 7-3 is dovetail-shaped, T-shaped, cross-shaped or rectangular. The shapes of the slots can be freely combined as needed.

[0041] A threaded hole for installing a pull piece is provided on the exposed end surface of the force transmission key 2, so as to facilitate the removal of the force transmission key 2.

[0042] A height-adjusting support with a connecting structure comprises the following steps:

[0043] Step 1: Before raising the support, measure the beam elevation to determine the required height adjustment of the support. The actual height adjustment of the support shall not exceed the designed height adjustment.

[0044] Step 2: Arrange the jack for the top beam at the dispatching support that needs to be raised. The maximum lifting force of the jack should be determined according to the design load of the support;

[0045] Step 3: loosen the buckling pressure of the adjacent sections of the track according to the design requirements;

[0046] Step 4: Take out the force transmission keys in slot A and slot B;

[0047] Step 5: Use the jack to lift the height adjustment support on the same pier. The height difference of the height adjustment support on the same pier should be less than 1mm. After the lifting height is 3-5mm higher than the required height adjustment, lock the jack and install temporary support.

[0048] Step 6: Insert the pre-prepared height adjustment pad that is consistent with the required height adjustment amount into the gap between the embedded component of the beam body and the height adjustment support, and finally insert the force transmission key that matches the slot;

[0049] Step 7: Remove the temporary support, return the oil to the jack and slowly lower the beam to make the support bear the pressure to complete the height adjustment.

[0050] Embodiment 1: Before installing the height adjustment pad, the embedded component 3 is embedded in the bottom surface of the beam body, the force transmission key 2 is a rectangular cross-section, the upper seat plate 1-1 of the support is provided with a U-shaped slot A7-1, and a U-shaped slot B7-2 is provided on the embedded steel plate 3-1 in the beam body corresponding to the U-shaped slot A7-1, and the force transmission key 2 is inserted into the rectangular slot formed by the upper seat plate 1-1 of the support and the embedded steel plate 3-1 to complete the connection between the support body 1 and the beam, and the lower seat plate 1-2 of the support is no longer provided with a T-shaped slot, and is connected to the pier by conventional anchoring or other methods, such as Figure 1 shown.

[0051] Embodiment 2: Before installing the height adjustment pad, the embedded component 3 is embedded in the bottom surface of the beam body, the force transmission key 2 is an I-shaped cross-section, the upper seat plate 1-1 of the support is provided with a T-shaped slot A7-1, and a T-shaped slot B7-2 is provided on the embedded steel plate 3-1 in the pier corresponding to the T-shaped slot A7-1. The force transmission key 2 is inserted into the I-shaped slot formed by the upper seat plate 1-1 of the support and the embedded steel plate 3-1 to complete the connection between the support body 1 and the beam body. The lower seat plate 1-2 of the support is no longer provided with a T-shaped slot, and is connected to the pier by conventional anchoring or other methods, such as Figure 2 shown.

[0052] Embodiment 3: Before installing the height adjustment pad, the embedded component 3 is embedded in the top surface of the pier, the force transmission key 2 is a rectangular cross-section, the lower seat plate 1-2 of the support is provided with a U-shaped slot A7-1, and the embedded steel plate 3-1 in the beam body is provided with a U-shaped slot B7-2 corresponding to the U-shaped slot A7-1, and the force transmission key 2 is inserted into the rectangular groove formed by the lower seat plate 1-2 of the support and the embedded steel plate 3-1 to complete the connection between the support body 1 and the pier, and the upper seat plate 1-1 of the support is no longer provided with a U-shaped groove, and is connected to the beam body by conventional anchoring or other methods, such as Figure 3 shown.

[0053] Embodiment 4: Before installing the height adjustment pad, the embedded component 3 is embedded in the top surface of the pier, the force transmission key 2 is an I-shaped cross-section, the lower seat plate 1-2 of the support is provided with a T-shaped slot A7-1, and a T-shaped slot B7-2 is provided on the embedded steel plate 3-1 in the pier corresponding to the T-shaped slot A7-1. The force transmission key 2 is inserted into the I-shaped slot formed by the lower seat plate 1-2 of the support and the embedded steel plate 3-1 to complete the connection between the support body 1 and the pier. The upper seat plate 1-1 of the support is no longer provided with a T-shaped slot, and is connected to the beam body by conventional anchoring or other methods, such as Figure 4 shown.

[0054] Example 5: Based on Examples 1-4, Figure 5-6 The height-adjusting pad 4 is arranged between the upper seat plate 1-1 of the support and the embedded steel plate 3-1. The rectangular through groove on the height-adjusting pad 4 cooperates with the slots on the upper seat plate 1-1 of the support and the embedded steel plate 3-1 to form a new rectangular groove. The force transmission key 2 is inserted into the rectangular groove to connect the support body 1 with the embedded component 3 and the height-adjusting pad 4 to play a force transmission role.

[0055] Similarly, the height-adjusting pad 4 can also be arranged between the support lower base plate 1-2 and the embedded steel plate 3-1.

[0056] The slot A7-1 of Example 1-4 can be replaced with a dovetail slot, and the slot B7-2 can also be replaced with a dovetail slot.

[0057] The through slot on the height-adjusting pad 4 of Embodiment 5 may be a T-shaped through slot or a dovetail-shaped through slot.

[0058] A height adjustment method for a height adjustment support with a connection structure:

[0059] (1) Before adjusting the height of the support, measure the beam elevation to determine the required height adjustment of the support. According to the type and size of the support, process the height adjustment pad 4 and the force transfer key 2. The actual height adjustment of the support should not be greater than the designed height adjustment.

[0060] (2) Arrange a jack for the top beam at the support that needs to be raised. The maximum lifting force of the jack should be determined based on the design load of the support.

[0061] (3) Relax the clamping pressure of adjacent sections of track according to design requirements.

[0062] (4) Remove the force transmission key 2.

[0063] (5) When the jack is used to lift the beam, the position of the top beam should meet the design requirements of the beam body. The same pier support should be lifted synchronously, and the height difference of the support should be less than 1mm. After the lifting height is 3-5mm higher than the required height adjustment, the jack is locked and temporary support is installed. After the beam body is lifted, the state of the support is as follows: Figure 6 shown.

[0064] (6) Insert the pre-prepared height adjustment pad 4 into the gap between the beam body and the support, and finally insert the new force transmission key 2 into the slot formed by the embedded steel plate 3, the support upper seat plate 1-1, and the height adjustment pad 4.

[0065] (7) Remove the temporary support, return the oil to the jack and slowly lower the beam to make the support bear the pressure to complete the height adjustment.

[0066] The present invention can also be height-adjusted according to the support structure in Example 3 and Example 4, by setting the height-adjusting pad 4 between the support lower seat plate 1-2 and the embedded steel plate 3, and inserting the force transmission key 2 into the slot formed by the embedded steel plate 3, the support lower seat plate 1-2, and the height-adjusting pad 4, so as to realize the height adjustment of the bridge.

[0067] The above are only preferred embodiments of the present invention and are not intended to limit or restrict the present invention. For researchers or technicians in this field, the present invention may have various changes and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection declared by the present invention.

Claims

1. A height-adjusting support with a connecting structure, characterized in that: A support body (1) is provided between a beam body (5) and a pier (6), an embedded component (3) is embedded in the beam body (5) and / or the pier (6), the upper surface and / or the lower surface of the support body (1) is connected to the embedded component (3) via a connecting structure, the surface of the support body (1) without a connecting structure is anchored to the beam body or the pier, the connecting structure is realized by a connecting component, the connecting component comprises a force transmission key (2) and a height adjustment pad (4), slots A (7-1) are provided on two or four symmetrical sides of the outer periphery of the support body (1), the slots A (7-1) are provided from the side surface of the support body (1) toward the center of the support body (1), and slots B (7-2) are provided on the surface of the embedded component (3) corresponding to the upper or lower side of the slot A (7-1). According to the height adjustment gap between the upper surface and / or lower surface of the support body (1) and the embedded component (3), a height adjustment pad (4) matching the height adjustment gap is arranged between the support body (1) and the embedded component (3), so that the upper and lower surfaces of the height adjustment pad (4) are in contact with the support body (1) and the embedded component (3), and through grooves (7-3) are opened on two or four sides of the outer rotation symmetry of the height adjustment pad (4) corresponding to the slot A (7-1) and the slot B (7-2). The through groove (7-3) is opened from the side surface of the support body (1) toward the center direction of the support body (1) and passes through the upper and lower surfaces of the height adjustment pad (4). The through groove (7-3), the slot A (7-1), and the slot B (7-2) are assembled into a slot (7), and a force transmission key (2) matching the slot (7) is inserted into the slot (7).

2. A height-adjustable support with a connection structure as claimed in claim 1, characterized in that: The embedded component (3) comprises an embedded steel plate (3-1) and anchoring steel bars (3-2); the anchoring steel bars (3-2) are embedded in the beam body or the pier as a whole, and the rear end thereof is connected to one side of the embedded steel plate (3-1) embedded in the connecting beam body or the pier, and the other side of the embedded steel plate (3-1) is exposed from the beam body or the pier.

3. The height-adjustable support with a connection structure according to claim 1, characterized in that: The cross-sectional shape of the slot A (7-1) is T-shaped, dovetail-shaped or rectangular.

4. A height-adjustable support with a connection structure as claimed in claim 1 or 3, characterized in that: The cross-sectional shape of the slot B (7-2) is T-shaped, dovetail-shaped or rectangular.

5. The height-adjustable support with a connection structure according to claim 1, characterized in that: The cross-sectional shape of the through groove (7-3) is dovetail-shaped, T-shaped, cross-shaped or rectangular.

6. The height-adjustable support with a connection structure according to claim 1, characterized in that: A threaded hole for mounting a pull piece is provided on the exposed end surface of the force transmission key (2).

7. The height-adjustable support with a connection structure according to claim 1, characterized in that: The following steps are involved: Step 1: Before raising the support, measure the beam elevation to determine the required height adjustment of the support. The actual height adjustment of the support shall not exceed the designed height adjustment. Step 2: Arrange the jack for the top beam at the dispatching support that needs to be raised. The maximum lifting force of the jack should be determined according to the design load of the support; Step 3: loosen the buckling pressure of the adjacent sections of the track according to the design requirements; Step 4: Take out the force transmission keys in slot A and slot B; Step 5: Use the jack to lift the height adjustment support on the same pier. The height difference of the height adjustment support on the same pier should be less than 1mm. After the lifting height is 3-5mm higher than the required height adjustment, lock the jack and install temporary support. Step 6: Insert the pre-prepared height adjustment pad that is consistent with the required height adjustment amount into the gap between the embedded component of the beam body and the height adjustment support, and finally insert the force transmission key that matches the slot; Step 7: Remove the temporary support, return the oil to the jack and slowly lower the beam to make the support bear the pressure to complete the height adjustment.

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