Jacking and leveling cushion block at inclined plane of cover beam

Abstract

The utility model discloses a jacking leveling cushion block at a cover beam inclined plane, which comprises a leveling cushion block shell arranged at the bottom of the cover beam inclined plane, a reinforcing mesh embedded into the bottom of the cover beam inclined plane and accommodated in the leveling cushion block shell, and a connecting piece arranged at the top of the leveling cushion block shell and connected with a cover beam, the leveling cushion block shell is filled with grouting materials, the reinforcing mesh is embedded in the grouting materials, and the grouting materials are tightly combined with the bottom of the slope of the bent cap. The device is simple in structure, the leveling cushion blocks which are poured and tightly combined are arranged at the bottom of the slope of the cover beam, damage and deformation caused by the self weight of the upper beam body and the jacking force of the lower jack can be avoided, horizontal displacement caused by sliding in the stressed jacking process can be avoided, and the jacking construction safety and quality of the slope of the cover beam are improved.

Description

Technical Field

[0001] This utility model belongs to the field of cap beam lifting technology, and in particular relates to a lifting and leveling pad for the inclined surface of a cap beam. Background Technology

[0002] Due to the proximity of the construction site to the Dahuan River box culvert and the large cantilever of the cap beam, the jacking system could only be positioned on the lower sloping surface of the cap beam, preventing the jacks from making proper contact with the bottom sloping surface of the cap beam. Leveling blocks are needed based on the angle between the cap beam and the top surface of the jacks. However, the current leveling blocks are composed of multiple layers of welded wedge-shaped steel plates. While they can withstand the load themselves without damage or deformation, the lack of connection between the beam and the top surface of the wedge-shaped steel plates makes them prone to slippage and horizontal displacement during jacking. Alternatively, concrete blocks could be used, but these are susceptible to damage and deformation due to the weight of the upper beam and the jacking force from the lower jacks. Both of these methods are prone to problems such as damage, deformation, or slippage.

[0003] Therefore, there is an urgent need for a simple and reasonably designed jacking and leveling pad for the sloping surface of the cap beam. By setting a tightly bonded leveling pad at the bottom of the sloping surface of the cap beam, it is possible to avoid damage and deformation caused by the self-weight of the upper beam and the jacking force of the lower jack, and to prevent slippage and horizontal displacement during the jacking process, thereby improving the safety and quality of the jacking construction at the sloping surface of the cap beam. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a lifting and leveling pad for the inclined surface of the cap beam, which addresses the shortcomings of the prior art. The pad has a simple structure and reasonable design. The leveling pad is set at the bottom of the inclined surface of the cap beam and is tightly bonded with the grout. This can prevent damage and deformation caused by the self-weight of the upper beam and the jacking force of the lower jack, and also prevent horizontal displacement caused by slippage during the lifting process, thereby improving the safety and quality of the lifting construction at the inclined surface of the cap beam.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a lifting and leveling pad for the inclined surface of a cap beam, characterized in that: it includes a leveling pad shell set at the bottom of the inclined surface of the cap beam, a steel mesh embedded in the bottom of the inclined surface of the cap beam and contained in the leveling pad shell, and a connector set at the top of the leveling pad shell and connected to the cap beam, wherein the leveling pad shell is filled with grout, the steel mesh is embedded in the grout, and the grout is tightly bonded to the bottom of the inclined surface of the cap beam.

[0006] The above-mentioned lifting and leveling pad at the inclined surface of a cap beam is characterized in that: the steel mesh includes a lower steel mesh and an upper steel mesh embedded in the bottom of the inclined surface of the cap beam and housed in the outer shell of the leveling pad, and both the lower steel mesh and the upper steel mesh include a plurality of transverse steel bars with one end embedded in the bottom of the inclined surface of the cap beam and a plurality of longitudinal steel bars tied to the transverse steel bars.

[0007] The above-mentioned lifting and leveling pad at the inclined surface of the cap beam is characterized in that: the outer shell of the leveling pad includes a horizontally arranged base plate, triangular side plates arranged on the front and rear sides of the base plate, and a left side plate connected to the left side of the two triangular side plates, wherein the left side plate is provided with grouting holes and overflow holes.

[0008] The above-mentioned lifting and leveling pad for the inclined surface of a cap beam is characterized in that: the inclination angle of the triangular side plate is the same as that of the inclined surface of the cap beam; the width of the bottom plate is less than the long side of the triangular side plate; the height of the left side plate is lower than the wide side of the triangular side plate; the top of the left side plate and the end of the bottom plate away from the left side plate are both abutted against the bottom of the inclined surface of the cap beam; the inner side of the triangular side plate is attached to the front and rear sides of the cap beam; and the top of the triangular side plate is integrally provided with an extension extending to the front and rear sides of the cap beam, so that the outer shell of the leveling pad and the bottom of the inclined surface of the cap beam form a cavity for filling with grout.

[0009] The above-mentioned lifting and leveling pad at the inclined surface of the cap beam is characterized in that: the connecting member includes a front expansion bolt and a rear expansion bolt, both of which include two expansion bolts, and the expansion bolts extend through the extension portion into the front and rear sides of the cap beam.

[0010] The above-mentioned lifting and leveling pad for the inclined surface of a cap beam is characterized in that: a steel pad is provided at the bottom of the outer shell of the leveling pad, and a lifting jack is provided at the bottom of the steel pad.

[0011] This utility model has the following advantages compared with the prior art:

[0012] 1. This utility model is equipped with a steel mesh, which combines with the grout and solidifies under the action of the leveling pad shell to form a solid block, thereby forming a leveling pad.

[0013] 2. The leveling pad, formed by the outer shell, reinforcing mesh, and grouting material of this utility model, is tightly integrated with the bottom of the inclined surface of the cap beam, thereby preventing horizontal displacement of the leveling pad during the jacking process and improving the safety of the jacking construction at the inclined surface of the cap beam. In addition, the outer shell of the leveling pad can reinforce the leveling pad, increasing its ability to bear the self-weight of the upper beam and the jacking force of the lower jack, thereby preventing damage and deformation of the leveling pad.

[0014] 3. This utility model is equipped with a connector to connect the top of the leveling pad shell to the cover beam, so that the leveling pad shell can be installed at the bottom of the inclined surface of the cover beam; by fixing the leveling pad shell and supporting the subsequent steel pad plate and lifting jack, the subsequent glue injection effect is improved.

[0015] In summary, this utility model has a simple structure and reasonable design. By setting a leveling pad with tight bonding at the bottom of the inclined surface of the cap beam, it can not only avoid damage and deformation caused by the self-weight of the upper beam and the jacking force of the lower jack, but also prevent slippage and horizontal displacement during the lifting process, thereby improving the safety and quality of the lifting construction at the inclined surface of the cap beam.

[0016] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0017] Figure 1 This is a diagram showing the usage state of this utility model.

[0018] Figure 2 for Figure 1 Enlarged view of point A in the middle.

[0019] Figure 3 This is a schematic diagram of the steel mesh structure of this utility model.

[0020] Figure 4 This is a schematic diagram of the structure of the leveling pad shell of this utility model.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1—Cap beam; 2—Reaction foundation; 2-1—Existing pile cap;

[0023] 2-2—Existing bridge pier; 3—Steel column; 4—Lifting jack;

[0024] 5—Steel pad; 6—Leveling pad housing; 6-1—Base plate;

[0025] 6-2—Triangular side plate; 6-3—Left side plate; 6-4—Grouting hole;

[0026] 6-5—Excess grout hole; 7—Lower layer steel mesh; 7-1—Transverse steel reinforcement;

[0027] 7-2—Longitudinal reinforcement; 8—Upper layer reinforcement mesh;

[0028] 9—Extension section; 10—Expansion bolt; 11—Grouting material. Detailed Implementation

[0029] like Figures 1 to 4 As shown, this utility model includes a leveling pad shell 6 disposed at the bottom of the inclined surface of the cap beam 1, a steel mesh embedded in the bottom of the inclined surface of the cap beam 1 and housed in the leveling pad shell 6, and a connector disposed at the top of the leveling pad shell 6 and connected to the cap beam 1. The leveling pad shell 6 is filled with grout 11, the steel mesh is embedded in the grout 11, and the grout 11 is tightly bonded to the bottom of the inclined surface of the cap beam 1.

[0030] In this embodiment, the steel mesh includes a lower steel mesh 7 and an upper steel mesh 8 that are implanted at the bottom of the inclined surface of the cap beam 1 and housed in the outer shell 6 of the leveling pad. Both the lower steel mesh 7 and the upper steel mesh 8 include a plurality of transverse steel bars 7-1 with one end implanted in the bottom of the inclined surface of the cap beam 1 and a plurality of longitudinal steel bars 7-2 tied to the transverse steel bars 7-1.

[0031] In this embodiment, the leveling pad housing 6 includes a horizontally arranged base plate 6-1, triangular side plates 6-2 arranged on the front and rear sides of the base plate 6-1, and a left side plate 6-3 connected to the left side of the two triangular side plates 6-2. The left side plate 6-3 is provided with a grouting hole 6-4 and an overflow hole 6-5.

[0032] In this embodiment, the inclination angle of the triangular side plate 6-2 is the same as that of the cap beam 1. The width of the bottom plate 6-1 is smaller than the long side of the triangular side plate 6-2. The height of the left side plate 6-3 is lower than the wide side of the triangular side plate 6-2. The top of the left side plate 6-3 and the end of the bottom plate 6-1 away from the left side plate 6-3 are both abutted against the bottom of the inclination of the cap beam 1. The inner side of the triangular side plate 6-2 is attached to the front and rear sides of the cap beam 1. The top of the triangular side plate 6-2 is integrally provided with an extension 9 extending to the front and rear sides of the cap beam 1, so that the leveling pad shell 6 and the bottom of the inclination of the cap beam 1 form a cavity for filling with grout 11.

[0033] In this embodiment, the connector includes a front expansion bolt and a rear expansion bolt. Both the front and rear expansion bolts include two expansion bolts 10, which extend through the extension 9 and into the front and rear sides of the cover beam 1.

[0034] In this embodiment, a steel pad 5 is provided at the bottom of the leveling pad housing 6, and a lifting jack 4 is provided at the bottom of the steel pad 5.

[0035] In this embodiment, in actual use, one end of the transverse steel bar 7-1 is inserted into the bottom of the inclined surface of the cap beam 1 by means of rebar installation, so as to anchor one end of the transverse steel bar 7-1, thereby facilitating the binding of the longitudinal steel bar 7-2 on the transverse steel bar 7-1.

[0036] In this embodiment, in actual use, the transverse reinforcing bar 7-1 is laid along the length of the cap beam 1, and the longitudinal reinforcing bar 7-2 is laid along the width of the cap beam 1.

[0037] In this embodiment, in actual use, a lower layer of reinforcing mesh 7 and an upper layer of reinforcing mesh 8 are set. The cross-sectional area of ​​the upper layer of reinforcing mesh 8 is smaller than that of the lower layer of reinforcing mesh 7. This adapts to the cross-sectional changes in the height direction of the leveling pad shell 6. It combines with the grouting material 11 and solidifies under the action of the leveling pad shell 6 to form a solid block, thereby forming a leveling pad.

[0038] In this embodiment, during actual use, the leveling pad, which is formed by the outer shell 6 of the leveling pad, the steel mesh and the grout 11, is tightly integrated with the bottom of the inclined surface of the cap beam 1 to form an integral whole, thereby preventing the leveling pad from undergoing horizontal displacement during the jacking process and improving the jacking construction safety at the inclined surface of the cap beam.

[0039] In this embodiment, the lower layer of steel mesh 7 and the upper layer of steel mesh 8 are set in actual use to improve the overall performance and durability of the grouting material, so as to make the leveling pad resistant to cracking and ensure stability during use.

[0040] In this embodiment, during actual use, the bottom plate 6-1, the lower layer steel mesh 7, and the upper layer steel mesh 8 are all arranged horizontally with vertical parallel gaps.

[0041] In this embodiment, the grouting hole 6-4 is provided in actual use so that grouting material can be injected through the hole; the overflow hole 6-5 is provided so that internal air and excess grout can be removed during the grouting process, thereby improving the compactness and strength of the leveling pad.

[0042] In this embodiment, expansion bolts 10 are provided to connect and fix the triangular side plate 6-2 and the front and rear sides of the cover beam 1, so that the leveling pad shell 6 can be installed at the bottom of the inclined surface of the cover beam 1; by fixing the leveling pad shell 6 and supporting it with the steel pad plate 5 and the lifting jack 4, the subsequent glue injection effect is improved.

[0043] In this embodiment, the grouting material used in actual use is C50 high-strength grouting material, which improves strength and stability.

[0044] In this embodiment, the outer shell 6 of the leveling pad is made of steel plate in actual use.

[0045] In this embodiment, in actual use, the grouting hole 6-4 is slightly lower than the overflow hole 6-5.

[0046] In this embodiment, in actual use, a steel column 3 is set between the lifting jack 4 and the reaction foundation 2. The steel column 3 is a 609 steel column.

[0047] In specific use, concrete is poured on the existing foundation 2-1 to form a reaction foundation 2, and steel columns 3 are installed on the reaction foundation 2, with lifting jacks 4 installed on the top of the steel columns 3.

[0048] Transverse steel bars 7-1 are inserted at the bottom of the inclined surface of the cap beam 1, and longitudinal steel bars 7-2 are tied on the transverse steel bars 7-1 to form a lower steel mesh 7 and an upper steel mesh 8; then the leveling pad shell 6 is installed, and the extension 9 of the triangular side plate 6-2 in the leveling pad shell 6 is attached to the front and rear sides of the cap beam 1 by expansion bolts 10, and the bottom of the inclined surface of the cap beam 1 is attached to the top of the left side plate 6-3 and the end of the bottom plate 6-1 away from the left side plate 6-3;

[0049] A steel pad 5 is added to the top of the lifting jack 4, and the steel pad 5 is attached to the bottom surface of the bottom plate 6-1 in the outer shell of the leveling pad block 6. Then, grout is injected into the outer shell of the leveling pad block 6 through the grouting hole 6-4 until grout overflows from the overflow hole 6-5. Then, grouting is stopped and the grout solidifies to form a leveling pad block.

[0050] Then, the existing pier 2-2 connected to the bottom of the cap beam 1 is cut off to separate the cap beam 1 from the top of the existing pier 2-2. The lifting jack 4 is operated to act on the leveling pad and transfer to the cap beam 1 so that the cap beam 1 is lifted to the design elevation. The existing pier 2-2 is then extended to connect the cap beam 1.

[0051] In summary, this utility model has a simple structure and reasonable design. By setting a leveling pad with tight bonding at the bottom of the inclined surface of the cap beam, it can not only avoid damage and deformation caused by the self-weight of the upper beam and the jacking force of the lower jack, but also prevent slippage and horizontal displacement during the lifting process, thereby improving the safety and quality of the lifting construction at the inclined surface of the cap beam.

[0052] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the present utility model. Any simple modifications, alterations, or equivalent structural changes made to the above embodiments based on the technical essence of the present utility model shall still fall within the protection scope of the present utility model.

Claims

1. A lifting and leveling pad for the inclined surface of a cap beam, characterized in that: The device includes a leveling pad shell (6) set at the bottom of the inclined surface of the cap beam (1), a steel mesh embedded in the bottom of the inclined surface of the cap beam (1) and contained in the leveling pad shell (6), and a connector set at the top of the leveling pad shell (6) and connected to the cap beam (1). The leveling pad shell (6) is filled with grout (11), the steel mesh is embedded in the grout (11), and the grout (11) is tightly bonded to the bottom of the inclined surface of the cap beam (1).

2. A lifting and leveling pad for the inclined surface of a cap beam as described in claim 1, characterized in that: The steel mesh includes a lower steel mesh (7) and an upper steel mesh (8) embedded in the bottom of the inclined surface of the cap beam (1) and housed in the outer shell (6) of the leveling pad. Both the lower steel mesh (7) and the upper steel mesh (8) include multiple transverse steel bars (7-1) with one end embedded in the bottom of the inclined surface of the cap beam (1) and multiple longitudinal steel bars (7-2) tied to the transverse steel bars (7-1).

3. A lifting and leveling pad for the inclined surface of a cap beam as described in claim 1, characterized in that: The leveling pad housing (6) includes a horizontally arranged base plate (6-1), triangular side plates (6-2) arranged on the front and rear sides of the base plate (6-1), and a left side plate (6-3) connected to the left side of the two triangular side plates (6-2). The left side plate (6-3) is provided with a grouting hole (6-4) and an overflow hole (6-5).

4. A lifting and leveling pad for the inclined surface of a cap beam as described in claim 3, characterized in that: The inclination angle of the triangular side plate (6-2) is the same as that of the cap beam (1). The width of the bottom plate (6-1) is smaller than the long side of the triangular side plate (6-2). The height of the left side plate (6-3) is lower than the width of the triangular side plate (6-2). The top of the left side plate (6-3) and the end of the bottom plate (6-1) away from the left side plate (6-3) are both attached to the bottom of the inclination of the cap beam (1). The inner side of the triangular side plate (6-2) is attached to the front and rear sides of the cap beam (1). The top of the triangular side plate (6-2) is integrally provided with an extension (9) extending to the front and rear sides of the cap beam (1) so that the leveling pad shell (6) and the bottom of the inclination of the cap beam (1) form a cavity for filling with grout (11).

5. A lifting and leveling pad for the inclined surface of a cap beam as described in claim 4, characterized in that: The connector includes a front expansion bolt and a rear expansion bolt, each of which includes two expansion bolts (10), which extend through the extension (9) into the front and rear sides of the cap beam (1).

6. A lifting and leveling pad for the inclined surface of a cap beam as described in claim 1, characterized in that: The bottom of the leveling pad housing (6) is provided with a steel pad plate (5), and the bottom of the steel pad plate (5) is provided with a lifting jack (4).

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