Cover beam structure with replaceable padstone and bridge structure

Abstract

The utility model discloses a capping beam structure capable of replacing a padstone and a bridge structure. The capping beam structure capable of replacing the padstone comprises a capping beam, the padstone is arranged at the top of the cover beam, at least part of the padstone is in lap joint with the top face of the cover beam, and the padstone is detachably connected with the cover beam. The bent cap and the padstone are arranged in a split mode and detachably connected, so that when the padstone is damaged in the service process, the damaged padstone can be detached from the bent cap, then a new padstone is replaced and installed, and the bent cap structure is repaired. Therefore, the repairing difficulty of the capping beam structure can be reduced, the repairing convenience can be improved, the replaced padstone can be effectively connected with the capping beam more easily, and therefore the repairing effect of the capping beam structure can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge engineering, in particular to a cap beam structure with replaceable cushion stones and a bridge structure. Background Art

[0002] In the design and construction of bridges, the bridge bearing pad is an important part of the bridge cap beam, which can provide a stable support surface for the bearing, avoid the top surface slope caused by the cross slope of the bridge, make the bearing evenly stressed, and prevent slippage; at the same time, it ensures that there is a certain clearance between the superstructure and the cap beam, which is convenient for the later replacement of the bearing and adjustment of the bridge slope. Most traditional bridge bearing pads are cast as a whole, that is, the pad is cast together with the cap beam as a whole.

[0003] Under the action of long-term load, the surface of the support stone concrete will be worn. In severe cases, the surface of the support stone concrete will be damaged, resulting in the ineffective transfer of load, thus affecting the force transmission mechanism of the bridge structure. The shrinkage and expansion of the surface of the support stone concrete due to long-term temperature changes or load changes will cause surface cracking, affecting the service life of the support stone. Excessive load or quality problems during use will cause the support stone concrete to break, causing the support to shift, and in severe cases, it will reduce the overall bearing capacity of the bridge. However, it is difficult to repair after damage and difficult to construct. At present, it is usually adopted by implanting steel bars and re-casting. First of all, this repair method takes a certain amount of time when the concrete reaches the design strength, and cannot achieve the effect of immediate repair. Secondly, this method is difficult to achieve an effective connection between the support stone and the old cap beam, and it is difficult to achieve the expected support effect. Utility Model Content

[0004] The main purpose of the utility model is to provide a cap beam structure with replaceable cushion stones, aiming to solve the technical problem of how to improve the repair convenience and repair effect of the cap beam structure.

[0005] In order to achieve the above-mentioned purpose, the cap beam structure with replaceable pad stones proposed in the utility model is applied to a bridge, and the cap beam structure with replaceable pad stones comprises:

[0006] cap beam;

[0007] A pad stone is arranged on the top of the cap beam, the pad stone is at least partially overlapped on the top surface of the cap beam, and the pad stone is detachably connected to the cap beam.

[0008] Optionally, a connecting groove is provided on the top surface of the cap beam, and the pad stone includes a pad portion and a connecting portion connected to the bottom of the pad portion, the connecting portion is detachably matched with the connecting groove, and the pad portion overlaps the top surface of the cap beam.

[0009] Optionally, the width of the connecting portion gradually decreases from an end close to the pad connection portion toward an end away from the pad connection portion, and the shape of the connecting groove is adapted to the connecting portion.

[0010] Optionally, the connecting portion is configured to be in a truncated cone shape.

[0011] Optionally, the cap beam structure of the replaceable pad stone further includes a sealing ring, which is sleeved on one end of the connecting portion close to the pad connection portion to seal the gap between the connecting groove and the connecting portion.

[0012] Optionally, the cap beam structure of the replaceable pad stone further includes a bearing plate, and the bearing plate is arranged on the top of the pad stone.

[0013] Optionally, the bearing plate is detachably connected to the cushion stone.

[0014] Optionally, the cushioning portion and the connecting portion are integrally cast concrete pieces.

[0015] Optionally, longitudinal steel bars are pre-embedded in the cushion stone; and / or stirrups are pre-embedded in the cushion stone.

[0016] The utility model also proposes a bridge structure, which includes a main beam, a support and a cap beam structure with replaceable pad stones as described above, wherein the support is padded at the bottom of the main beam, the cap beam structure with replaceable pad stones is arranged below the support, and the pad stones of the cap beam structure with replaceable pad stones are padded at the bottom of the support.

[0017] In the technical solution of the cap beam structure with replaceable cushion stones of the utility model, the cap beam and the cushion stone are separately arranged and detachably connected, so that when the cushion stone is damaged during service, the damaged cushion stone can be removed from the cap beam, and then replaced with a new cushion stone to achieve the repair of the cap beam structure. In this way, the difficulty of repairing the cap beam structure can be reduced, the convenience of repair can be improved, and the replaced cushion stone can be more easily effectively connected with the cap beam, thereby improving the repair effect of the cap beam structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0019] Figure 1 It is a structural schematic diagram of an embodiment of a cap beam structure with replaceable pad stones of the utility model;

[0020] Figure 2 This is a structural schematic diagram of an embodiment of a cushion stone in the utility model;

[0021] Figure 3 It is a projection diagram of an embodiment of a cushion stone in the utility model;

[0022] Figure 4 It is a structural schematic diagram of an embodiment of the bridge structure of the utility model.

[0023] Description of Figure Numbers:

[0024] Label name Label name Label name 1 Loading plate 2 Cap beam 3 Stepping Stone 31 Pad joint 32 Connection 4 Support 5 Main beam 6 Longitudinal reinforcement 7 Stirrups 8 fastener 9 Sealing ring

[0025] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0028] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text is to include three parallel solutions, taking "A and / or B as an example", including solution A, or solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0029] In the design and construction of bridges, the bridge bearing pad is an important part of the bridge cap beam, which can provide a stable support surface for the bearing, avoid the top surface slope caused by the cross slope of the bridge, make the bearing evenly stressed, and prevent slippage; at the same time, it ensures that there is a certain clearance between the superstructure and the cap beam, which is convenient for the later replacement of the bearing and adjustment of the bridge slope. Most traditional bridge bearing pads are cast as a whole, that is, the pad is cast together with the cap beam as a whole.

[0030] Under the action of long-term load, the surface of the support stone concrete will be worn. In severe cases, the surface of the support stone concrete will be damaged, resulting in the ineffective transfer of load, thus affecting the force transmission mechanism of the bridge structure. The shrinkage and expansion of the surface of the support stone concrete due to long-term temperature changes or load changes will cause surface cracking, affecting the service life of the support stone. Excessive load or quality problems during use will cause the support stone concrete to break, causing the support to shift, and in severe cases, it will reduce the overall bearing capacity of the bridge. However, it is difficult to repair after damage and difficult to construct. At present, it is usually adopted by implanting steel bars and re-casting. First of all, this repair method takes a certain amount of time when the concrete reaches the design strength, and cannot achieve the effect of immediate repair. Secondly, this method is difficult to achieve an effective connection between the support stone and the old cap beam, and it is difficult to achieve the expected support effect.

[0031] The utility model provides a cap beam structure with replaceable cushion stones, aiming to solve the technical problem of how to improve the repair convenience and repair effect of the cap beam structure.

[0032] In the embodiment of the present utility model, Figure 1 As shown, Figure 1 The present invention is a schematic diagram of a cap beam structure with replaceable pad stones according to an embodiment of the present invention. The cap beam structure with replaceable pad stones is applied to bridges, and the cap beam structure with replaceable pad stones comprises: a cap beam 2; a pad stone 3, wherein the pad stone 3 is arranged on the top of the cap beam 2, the pad stone 3 at least partially overlaps the top surface of the cap beam 2, and the pad stone 3 is detachably connected to the cap beam 2.

[0033] In this embodiment, the cap beam 2 refers to a beam arranged on the top of the bent pile pier to support, distribute and transfer the load of the upper structure; it is also called a cap beam. The function of the cap beam 2 is to support the upper structure of the bridge and transfer all loads to the lower structure; that is, to support the main beam 5 and then transfer all loads to the pier. The length direction of the cap beam 2 is consistent with the width direction of the main beam 5, and the main beam 5 is erected on the cap beam 2 through the support 4 and the pad stone 3.

[0034] In the application scenario of the cap beam structure with replaceable pad stone, such as Figure 4 As shown, Figure 4This is a structural diagram of an embodiment of the bridge structure of the utility model. The bottom of the cap beam 2 can be supported by a columnar pier, and the pad stone 3 is arranged on the top of the cap beam 2. The pad stone 3 is used to pad under the support 4, and the main beam 5 is placed on the support 4. In this way, the load borne by the bridge structure will be transmitted to the cap beam 2 through the main beam 5, the support 4 and the pad stone 3 in sequence.

[0035] When various disasters such as earthquakes and collisions occur and the cushion stone 3 is damaged, the cushion stone 3 can be removed from the cap beam 2 and replaced with a new cushion stone 3. In this way, the repair process of the cap beam structure can be simplified; and the damaged cushion stone 3 is easier to be completely removed, so as not to affect the effective connection between the new cushion stone 3 and the cap beam 2, thereby improving the repair effect of the cap beam structure. When replacing the cushion stone 3, it is only necessary to remove the damaged cushion stone 3 and replace it with a prefabricated new cushion stone 3. There is no need for large-scale construction, and the maintenance process is simpler and more convenient, saving labor costs and time costs. At the same time, the damaged cushion stone 3 can be regularly inspected and replaced, reducing the safety hazards of the bridge structure caused by damage to the cushion stone 3. The specifications of the cushion stone 3 can be customized according to the size and shape of the specific support 4, so it is suitable for bridge structures of various types and specifications.

[0036] The connection method between the cushion stone 3 and the cap beam 2 can be mutual embedding or connection with the help of a connecting structure, which is not limited here, and only needs to meet the requirement of detachable connection.

[0037] Specifically, Figure 1 and Figure 2 As shown, Figure 2 It is a structural schematic diagram of an embodiment of the cushion stone 3 in the utility model. A connecting groove is provided on the top surface of the cap beam 2, and the cushion stone 3 includes a cushioning portion 31 and a connecting portion 32 connected to the bottom of the cushioning portion 31, and the connecting portion 32 is detachably matched with the connecting groove, and the cushioning portion 31 overlaps the top surface of the cap beam 2. The cushioning portion 31 is used to support the support 4, and the cross-section of the connecting portion 32 is smaller than the cross-section of the cushioning portion 31, that is, the projection of the connecting portion 32 on the cap beam 2 is located within the projection area of ​​the cushioning portion 31 on the cap beam 2, so that after the connecting portion 32 is matched with the connecting groove, the cushioning portion 31 can be effectively overlapped on the top surface of the cap beam 2. The detachable connection between the cushion stone 3 and the cap beam 2 is realized by matching the connecting portion 32 with the connecting groove, which can simplify the disassembly and assembly method of the cushion stone 3 and the cap beam 2, thereby improving the replacement efficiency of the cushion stone 3; in addition, the connection area between the cushion stone 3 and the cap beam 2 can be increased to improve the connection stability.

[0038] For example, Figure 2As shown, the width of the connecting portion 32 gradually decreases from one end close to the pad connection portion 31 to one end away from the pad connection portion 31, and the shape of the connecting groove is adapted to the connecting portion 32. The width of the connecting groove gradually decreases from the groove opening to the groove bottom, so that the peripheral wall of the connecting portion 32 can be matched with the groove wall of the connecting groove in a conical surface, and the connecting portion 32 can generate a vertical downward component force on the groove wall of the connecting groove when transmitting the load, so that the groove wall of the connecting groove can help disperse the pressure on the cap beam 2, so that the force on the cap beam 2 is more uniform, and the local pressure on the cap beam 2 is reduced, thereby improving the structural stability and load capacity of the cap beam 2.

[0039] Specifically, Figure 2 As shown, the connecting portion 32 is configured to be truncated cone-shaped, and the radial dimension of the connecting portion 32 gradually decreases from one end close to the connecting portion 32 to one end away from the connecting portion 32. The groove wall of the connecting groove is adapted to the shape of the connecting portion 32, so that the connecting portion 32 and the connecting groove can be matched in an arc surface, so as to increase the matching area between the connecting portion 32 and the connecting groove, and further improve the matching stability.

[0040] In practical applications, such as Figure 1 and Figure 2 As shown, the cap beam structure with replaceable pad stone further includes a sealing ring 9, which is sleeved on one end of the connection part 32 close to the pad connection part 31 to seal the gap between the connection groove and the connection part 32. The sealing ring 9 can be a rubber ring, which can seal the gap between the connection part 32 and the notch of the connection groove, thereby preventing water from entering the connection groove, so as to improve the waterproof ability of the cap beam structure with replaceable pad stone.

[0041] Exemplarily, the cap beam structure of the replaceable pad stone also includes a bearing plate 1, and the bearing plate 1 is arranged on the top of the pad stone 3. When the cap beam structure of the replaceable pad stone is applied to the bridge structure, the bearing plate 1 can be directly pressed against the support 4, that is, the support 4 is separated from the pad stone 3, and the abutting friction between the bearing plate 1 and the support 4 is greater than the abutting friction between the pad stone 3 and the support 4, thereby improving the position stability of the support 4. The cross-sectional area of ​​the bearing plate 1 is larger than the cross-sectional area of ​​the support 4. The bearing plate 1 can directly bear the pressure from the support 4 and then transfer the pressure to the pad stone 3. Since the cross-sectional area of ​​the bearing plate 1 is larger than the cross-sectional area of ​​the support 4, the force-bearing part of the pad stone 3 can be increased, and the local pressure on the pad stone 3 can be reduced, thereby preventing the pad stone 3 from being damaged due to excessive local pressure, so as to improve the structural stability of the pad stone 3. The bearing plate 1 can be set as a steel plate to ensure that the bearing plate 1 has sufficient rigidity and hardness, thereby ensuring structural stability; in addition, the steel plate is less likely to rust in the service environment of the cap beam structure with replaceable pad stones and has a longer service life.

[0042] Specifically, the bearing plate 1 is detachably connected to the pad stone 3. In this way, when the pad stone 3 is damaged and the bearing plate 1 is intact, the bearing plate 1 can be first detached from the pad stone 3 and then installed on a new pad stone 3, thereby improving the reuse rate of the bearing plate 1 and reducing waste, so as to reduce the maintenance cost of the cap beam structure with replaceable pad stones. In addition, when the bearing plate 1 affects its service capacity due to aging, the old bearing plate 1 can also be removed and replaced with a new bearing plate 1 to achieve local maintenance of the cap beam structure with replaceable pad stones.

[0043] The bearing plate 1 and the cushion stone 3 may be connected by mutual embedding or by fasteners 8 .

[0044] In practical applications, the support plate 1 is provided with a via hole, and the pad stone 3 is provided with a fixing hole corresponding to the via hole. The via hole and the fixing hole are connected by a fastener 8. In this way, the disassembly and assembly method of the support plate 1 and the pad stone 3 can be simplified, and the convenience of disassembly and assembly can be improved.

[0045] The pad portion 31 and the connecting portion 32 can be formed separately and then connected together, or can be formed integrally.

[0046] Exemplarily, the pad portion 31 and the connecting portion 32 are integrally cast concrete parts, which can simplify the production and processing of the pad portion 31 and the connecting portion 32, improve processing efficiency, and increase the connection strength between the pad portion 31 and the connecting portion 32.

[0047] Specifically, Figure 3 As shown, Figure 3 It is a projection diagram of an embodiment of the cushion stone 3 in the utility model. The cushion stone 3 is pre-embedded with longitudinal steel bars 6; and / or, the cushion stone 3 is pre-embedded with stirrups 7. The longitudinal steel bars 6 are steel bars arranged parallel to the longitudinal axis of the concrete member. The longitudinal steel bars 6 can prevent the shrinkage and temperature deformation of the concrete from causing vertical cracks, and at the same time strengthen the rigidity of the steel skeleton, so that the overall structural stability of the cushion stone 3 can be improved.

[0048] The stirrups 7 are used to meet the shear strength of the inclined section and connect the main reinforcement and the mixed reinforcement skeleton of the compression zone. The stirrups 7 in this embodiment can be closed polygonal stirrups 7. When the pad stone 3 is damaged and needs to be replaced, the concrete on the surface of the pad stone 3 can be chiseled off to expose the stirrups 7. The constructor can use a crane or lifting equipment to pull the pad stone 3 out of the connection groove as a whole through the exposed stirrups 7, thereby simplifying the process of removing the pad stone 3 from the cap beam 2 and improving the disassembly efficiency.

[0049] For example, Figure 4As shown, the utility model also proposes a bridge structure, which includes a main beam 5, a support 4 and a cap beam structure with replaceable pad stones. The specific structure of the cap beam structure with replaceable pad stones refers to the above-mentioned embodiment. Since the bridge structure adopts all the technical solutions of all the above-mentioned embodiments, it has at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be described one by one here.

[0050] The support 4 is padded at the bottom of the main beam 5, the cap beam structure of the replaceable pad stone is arranged below the support 4, and the pad stone 3 of the cap beam structure of the replaceable pad stone is padded at the bottom of the support 4. The support 4 is in abutment with the main beam 5 and the pad stone 3. If the support 4 is damaged or aged during service, which affects the friction between the support 4 and the bearing plate 1, the support 4 can be easily replaced to achieve local maintenance of the bridge structure.

[0051] In the technical solution of the cap beam structure with replaceable cushion stones of the utility model, the cap beam 2 and the cushion stone 3 are separately arranged and detachably connected, so that when the cushion stone 3 is damaged during service, the damaged cushion stone 3 can be removed from the cap beam 2, and then replaced with a new cushion stone 3 to achieve the repair of the cap beam structure. In this way, the difficulty of repairing the cap beam structure can be reduced, the convenience of repair can be improved, and the replaced cushion stone 3 can be more easily effectively connected with the cap beam 2, thereby improving the repair effect of the cap beam structure.

[0052] The above description is only an optional embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A cap beam structure with replaceable pad stones, applied to bridges, characterized in that: The cap beam structure with replaceable pad stone comprises: cap beam; A pad stone is arranged on the top of the cap beam, the pad stone is at least partially overlapped on the top surface of the cap beam, and the pad stone is detachably connected to the cap beam.

2. The cap beam structure with replaceable pad stones as claimed in claim 1, characterized in that: A connecting groove is provided on the top surface of the cap beam, and the pad stone includes a pad connection portion and a connecting portion connected to the bottom of the pad connection portion, the connecting portion is detachably matched with the connecting groove, and the pad connection portion overlaps the top surface of the cap beam.

3. The cap beam structure with replaceable pad stones as claimed in claim 2, characterized in that: The width of the connecting portion gradually decreases from an end close to the pad connection portion toward an end away from the pad connection portion, and the shape of the connecting groove is adapted to the connecting portion.

4. The cap beam structure with replaceable pad stones as claimed in claim 3, characterized in that: The connecting portion is configured in a truncated cone shape.

5. The cap beam structure with replaceable pad stones as claimed in claim 2, characterized in that: The cap beam structure of the replaceable pad stone also includes a sealing ring, which is sleeved on one end of the connecting part close to the pad connection part to seal the gap between the connecting groove and the connecting part.

6. The cap beam structure with replaceable pad stones according to any one of claims 1 to 5, characterized in that: The cap beam structure of the replaceable pad stone also includes a bearing plate, and the bearing plate is arranged on the top of the pad stone.

7. The cap beam structure with replaceable pad stones as claimed in claim 6, characterized in that: The bearing plate is detachably connected to the cushion stone.

8. The cap beam structure with replaceable pad stones according to any one of claims 2 to 5, characterized in that: The cushioning portion and the connecting portion are integrally cast concrete parts.

9. The cap beam structure with replaceable pad stones as claimed in claim 8, characterized in that: The cushion stone is pre-embedded with longitudinal steel bars; and / or, the cushion stone is pre-embedded with stirrups.

10. A bridge structure, characterized in that: It comprises a main beam, a support and a cap beam structure with a replaceable pad stone as described in any one of claims 1 to 9, wherein the support is padded at the bottom of the main beam, the cap beam structure with the replaceable pad stone is arranged below the support, and the pad stone of the cap beam structure with the replaceable pad stone is padded at the bottom of the support.

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