CN220267743U - Bending-resistant I-steel anchor cable beam - Google Patents
Bending-resistant I-steel anchor cable beam Download PDFInfo
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- CN220267743U CN220267743U CN202321875177.7U CN202321875177U CN220267743U CN 220267743 U CN220267743 U CN 220267743U CN 202321875177 U CN202321875177 U CN 202321875177U CN 220267743 U CN220267743 U CN 220267743U
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Abstract
The utility model relates to the technical field of roadway support, in particular to an anti-bending I-steel anchor cable beam which comprises an I-steel beam, anchor cables fixed on a reference support surface are arranged between flange plates on two sides of the I-steel beam in a penetrating mode, reinforcing plates corresponding to the anchor cables are fixed between the flange plates on two sides of the I-steel beam, the reinforcing plates are parallel to web plates of the I-steel beam, grooves I matched with the anchor cables are formed in the reinforcing plates, and groove surfaces of the grooves I are in contact with side walls of the anchor cables. According to the utility model, the flange plates are directly contacted with the supporting surface, so that the contact area between the anchor cable beam and the supporting surface is greatly increased, the stress of the supporting surface is effectively reduced, and meanwhile, the reinforcing plate arranged between the two flange plates of the I-beam greatly improves the bending resistance of the steel I-beam, and the problem that the I-beam is easy to deform due to overlarge stress of the supporting surface in the prior art is solved.
Description
Technical Field
The utility model relates to the technical field of roadway support, in particular to an anti-bending I-steel anchor cable beam.
Background
In the supporting process of the coal mine roadway, especially in the supporting process of the weak coal rock roadway, the control effect of the point anchor rope and the point anchor rod on the top plate is limited, the control of the roadway top plate and surrounding rock is often carried out by adopting steel belts, anchor rope beams, steel wire meshes and the like to be matched with the anchor rope anchor rods, the actual control surface area of the anchor rope and the anchor rod is further increased, and the active supporting strength of the anchor rope beams matched with the anchor net rope is often larger than the supporting strength of the anchor net rope used alone.
When the I-beam anchor cable beam is used for active support, a method of punching holes in a steel plate in the middle of the I-beam is generally adopted, and the leg of the I-beam contacts with a top plate during support, and the contact surface between the leg and a support surface is two lines. For example, in the chinese patent with publication number CN211172008U and entitled "support structure without waist rail anchor cable", the support plate is an i-beam, and when the side wall of the foundation pit is supported, the flange end of the i-beam is directly contacted with the side wall of the foundation pit, so that the contact area is smaller, the stress area of the corresponding side wall or support surface of the foundation pit is smaller, when the pre-tightening force applied to the i-beam is too large, stress concentration can be generated, the flange end of the i-beam is easy to sink into the corresponding support surface, and the integrity of the support surface is damaged, meanwhile, because the pull rod is arranged on the middle web of the support plate, that is, the pull rod is arranged on the groove part of the i-beam, so that the pre-tightening force is inconvenient to apply.
When the stress is too large and the damage to the supporting surface is serious, the I-shaped steel beam is easy to deform, and the deformation of the steel beam also reduces the supporting strength so as to influence the stability of the roadway.
Disclosure of Invention
In order to overcome the defects in the background art, the utility model provides the bending-resistant I-steel anchor cable beam, which is in direct contact with the supporting surface through the flange plates, so that the contact area between the anchor cable beam and the supporting surface is greatly increased, the stress of the supporting surface is effectively reduced, and meanwhile, the reinforcing plate arranged between the two flange plates of the I-steel beam greatly improves the bending-resistant capability of the cable beam and solves the problem that the I-steel beam is easy to deform due to overlarge stress of the supporting surface in the prior art.
The technical scheme of the utility model is realized as follows:
the utility model provides an anti crooked I-steel anchor rope roof beam, includes the I-steel girder, wears to be equipped with the anchor rope of fixing on the benchmark support face between the both sides flange board of I-steel girder to be fixed with between the both sides flange board of I-steel girder with the corresponding reinforcing plate of anchor rope, the reinforcing plate is parallel with the web of I-steel girder, has seted up the recess I with anchor rope looks adaptation on the reinforcing plate, the groove face and the anchor rope lateral wall contact of recess I.
Furthermore, the anchor cable is uniformly arranged on the I-shaped steel beam along the length direction of the I-shaped steel beam, and a plurality of reinforcing plates corresponding to the anchor cable are arranged.
Further, a reinforcement for fastening the anchor cable is arranged between the flange plates on two sides of the I-shaped steel beam, the reinforcement is a tight-supporting limiting block, a groove II matched with the side wall of the anchor cable is formed in one side of the tight-supporting limiting block, the tight-supporting limiting block is fixed on the reinforcement plate through bolts, and the groove II and the groove I are mutually matched to tightly hold the anchor cable.
Furthermore, the groove surfaces of the groove I and the groove II and the side walls of the anchor cable corresponding to the groove I and the groove II are frosted surfaces.
Further, the anti-slip sheets are respectively stuck on the frosting surfaces of the groove I and the groove II, and the frosting surfaces on the anchor cables are stuck tightly with the corresponding anti-slip sheets.
Further, the antiskid sheet is a rubber sheet with elasticity.
Furthermore, an annular tooth slot is formed in the side wall of the anchor cable, and reinforcing teeth meshed with the annular tooth slot are fixed on the groove walls of the groove I and the groove II.
The utility model has the beneficial technical effects that the plate surface of the I-beam flange plate is directly contacted with the supporting surface, but not the side end surface of the I-beam flange plate, and compared with the contact between the side end of the traditional I-beam flange plate and the supporting surface, the contact area between the plate surface of the flange plate and the supporting surface is larger, the stress of the supporting surface on the I-beam can be dispersed to a greater extent, the I-beam is reduced to be sunk into the supporting surface due to overlarge stress, and the structure of the supporting surface is further damaged. The arrangement of the reinforcing plate improves the bending resistance of the I-shaped steel beam and can solve the problem that the I-shaped steel beam is easy to deform due to overlarge supporting surface stress in the prior art.
Meanwhile, in the utility model, the groove surface of the groove I is contacted with the anchor cable, so that the contact area between the anchor cable and the reinforcing plate is increased, the possibility of slipping of the anchor cable on the I-steel beam can be further reduced, and the anchor cable is more stable on the I-steel beam.
In addition, the frosting, antiskid sheets and annular teeth on the walls of the grooves I and the grooves II are used for improving the connection relationship between the reinforcing plate and the anchor cable, and further improving the supporting strength of the I-shaped steel beam through the reinforcing plate.
Drawings
In order to more clearly illustrate the embodiments of the present utility model, the drawings that are required for the description of the embodiments will be briefly described below, it being apparent that the drawings in the following description are only some embodiments of the present utility model and that other drawings may be obtained from these drawings without inventive effort for a person of ordinary skill in the art.
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a cross-sectional view of the present utility model taken perpendicular to the length of a steel I-beam;
FIG. 3 is a cross-sectional view of the present utility model perpendicular to the length of a steel I-beam with a reinforcement and a frosting;
FIG. 4 is a cross-sectional view of the present utility model perpendicular to the length of a steel I-beam with a frosted surface and a non-slip sheet;
FIG. 5 is a cross-sectional view of the present utility model with a frosted surface and a non-slip sheet disposed parallel to the length of the I-beam;
FIG. 6 is a cross-sectional view of the present utility model perpendicular to the length of a steel I-beam with annular tooth slots and reinforcing teeth;
fig. 7 is an enlarged schematic view of the portion a in fig. 6.
In the figure, 1, an I-shaped steel beam; 2. an anchor cable; 3. a reinforcing plate; 4. a groove I; 5. a reinforcement; 6. a groove II; 7. a frosted surface; 8. a non-slip sheet; 91. annular tooth slots; 92. strengthening teeth.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without any inventive effort, are intended to be within the scope of the utility model.
Example 1:
referring to fig. 1 and 2, an anti-bending i-steel anchor cable beam comprises an i-steel beam 1, wherein anchor cables 2 fixed on a reference support surface are arranged between flange plates on two sides of the i-steel beam 1 in a penetrating manner. The anchor rope 2 is parallel with the web of I-steel beam 1, and the side flange plate face of I-steel beam 1 directly contacts with the wall or the well surface that wait to strut under the effect of anchor rope 2, compares in the contact of the side end of traditional I-steel beam 1 flange plate and a supporting surface, and the area of contact between the face of flange plate and the supporting surface is bigger, can the more degree dispersion support the stress of I-steel beam 1, reduces I-steel beam 1 and falls into the supporting surface because of the stress is too big, and then destroys the structure of supporting surface.
In the utility model, a reinforcing plate 3 corresponding to an anchor rope 2 is fixed between an upper beam plate and a lower beam plate of an I-shaped steel beam 1, the reinforcing plate 3 is a plate parallel to a web plate of the I-shaped steel beam 1, the anchor rope 2 is positioned between the reinforcing plate 3 and the web plate of the I-shaped steel beam 1, a groove I4 matched with the anchor rope 2 is formed in the reinforcing plate 3, and the groove surface of the groove I4 is in contact with the side wall of the anchor rope 2.
The groove surface of the groove I4 is in contact with the anchor cable 2, so that the contact area between the anchor cable 2 and the reinforcing plate 3 is increased, the possibility that the anchor cable 2 slips on the I-shaped steel beam 1 can be further reduced, and the anchor cable 2 is more stable on the I-shaped steel beam 1.
In addition, the arrangement of the reinforcing plate 3 improves the bending resistance of the I-beam 1, and can solve the problem that the I-beam 1 is easy to deform due to overlarge supporting surface stress in the prior art.
In the utility model, a plurality of anchor cables 2 are uniformly arranged on an I-shaped steel beam 1 along the length direction, and a plurality of reinforcing plates 3 corresponding to the anchor cables 2 are arranged. The I-beam 1 is arranged on the supporting surface under the reinforcement of the anchor cables 2, and when the I-beam 1 supports the supporting surface, the reinforcing plate 3 strengthens the bending resistance of the supporting surface, so that the roadway mine structure supported by the utility model is more problematic.
Example 2:
referring to fig. 3, on the basis of example 1, a reinforcement 5 for fastening an anchor cable 2 is provided between the side flanges of the i-beam 1. Specifically, the reinforcement 5 is a tight limiting block, the tight limiting block is located on one side of the anchor cable 2 away from the reinforcing plate 3 between two side flange plates of the i-beam 1, the tight limiting block is provided with a plurality of pieces on the i-beam 1, and the plurality of pieces of tight limiting blocks correspond to the plurality of anchor cables 2 on the i-beam 1 respectively.
The propping limiting block is provided with a groove II 6 which is matched with the side wall of the anchor cable 2. The groove II 6 is matched with the groove I4, and is respectively close to the anchor cable 2 from two sides of the anchor cable 2 and finally is completely held tightly on the anchor cable 2.
In this embodiment, the groove surfaces of the groove i 4 and the groove ii 6 and the side walls of the anchor cable 2 corresponding to the groove i 4 and the groove ii 6 are frosted surfaces 7.
The frosting 7 makes the frictional force between the anchor rope 2 and the grooves I4 and II 6 bigger, so that the anchor rope 2 is more difficult to slide or shake between the reinforcing plate 3 and the abutting limiting block, and the stable installation of the I-shaped steel beam 1 on the supporting surface is ensured.
Example 3:
referring to fig. 4 and 5, on the basis of embodiment 2, anti-slip sheets 8 are respectively stuck on the groove surfaces of the groove i 4 and the groove ii 6 in this embodiment, the anti-slip sheets 8 are rubber sheets with certain elasticity and toughness, and when the anti-slip sheets 8 are on the corresponding groove walls, the anti-slip sheets are stuck tightly with the frosted surfaces 7 of the groove i 4 and the groove ii 6 walls. The antiskid sheets 8 can further improve the friction force between the anchor cable 2 and the grooves I4 and II 6, so that the anchor cable 2 is more difficult to slide on the I-shaped steel beam 1, and the stability is better.
Example 4:
referring to fig. 6 and 7, on the basis of embodiment 2, annular tooth grooves 91 are formed in the side wall of the anchor cable 2, the annular tooth grooves 91 are formed in the portion of the anchor cable 2 located between the two side flanges of the i-beam 1, a plurality of annular tooth grooves 91 are formed, and the plurality of annular tooth grooves 91 are uniformly distributed between the two side flanges of the i-beam 1 along the length direction of the anchor cable 2.
Simultaneously, the groove walls of the groove I4 and the groove II 6 corresponding to the anchor cable 2 are respectively fixed with reinforcing teeth 92 meshed with the annular tooth grooves 91, and the reinforcing teeth 92 are uniformly distributed on the corresponding groove walls along the length direction of the groove.
The frosting 7 in this embodiment is provided with reinforcing teeth 92 and annular tooth grooves 91, and the reinforcing teeth 92 on the groove i 4 and the groove ii 6 are respectively inserted into the annular tooth grooves 91 of the anchor cable 2 from two sides of the anchor cable 2, and are tightly held to the anchor cable 2.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.
Claims (7)
1. The utility model provides an anti crooked I-steel anchor rope roof beam, includes I-steel roof beam (1), its characterized in that: an anchor rope (2) fixed on a reference supporting surface is arranged between two side flange plates of the I-shaped steel beam (1) in a penetrating mode, a reinforcing plate (3) corresponding to the anchor rope (2) is fixed between two side flange plates of the I-shaped steel beam (1), the reinforcing plate (3) is parallel to a web plate of the I-shaped steel beam (1), a groove I (4) matched with the anchor rope (2) is formed in the reinforcing plate (3), and the groove surface of the groove I (4) is in contact with the side wall of the anchor rope (2).
2. The bending-resistant i-steel cable beam according to claim 1, wherein: the anchor cable (2) is uniformly arranged on the I-shaped steel beam (1) along the length direction of the I-shaped steel beam, and a plurality of reinforcing plates (3) corresponding to the anchor cable (2) are arranged.
3. The bending-resistant i-steel cable beam according to claim 2, wherein: the steel I-beam (1) is characterized in that a reinforcement (5) for fastening the anchor cable (2) is arranged between two side flange plates, the reinforcement (5) is a tight-supporting limiting block, a groove II (6) matched with the side wall of the anchor cable (2) is formed in one side of the tight-supporting limiting block, the tight-supporting limiting block is fixed on the reinforcing plate (3) through bolts, and the groove II (6) and the groove I (4) are mutually matched to tightly hold the anchor cable (2).
4. A bending-resistant i-steel anchor line beam according to claim 3, characterised in that: the groove faces of the groove I (4) and the groove II (6) and the side walls of the anchor cable (2) corresponding to the groove I (4) and the groove II (6) are frosted faces (7).
5. The bending-resistant i-steel cable beam according to claim 4, wherein: the anti-slip sheets (8) are respectively stuck on the frosting surfaces (7) of the grooves I (4) and the grooves II (6), and the frosting surfaces (7) on the anchor cables (2) are stuck to the corresponding anti-slip sheets (8).
6. The bending-resistant i-steel cable beam according to claim 5, wherein: the non-slip sheet (8) is a rubber sheet with elasticity.
7. A bending-resistant i-steel cable beam according to any one of claims 4-6, wherein: annular tooth grooves (91) are formed in the side walls of the anchor cable (2), and reinforcing teeth (92) meshed with the annular tooth grooves (91) are fixed on the groove walls of the grooves I (4) and the grooves II (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321875177.7U CN220267743U (en) | 2023-07-17 | 2023-07-17 | Bending-resistant I-steel anchor cable beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321875177.7U CN220267743U (en) | 2023-07-17 | 2023-07-17 | Bending-resistant I-steel anchor cable beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220267743U true CN220267743U (en) | 2023-12-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321875177.7U Active CN220267743U (en) | 2023-07-17 | 2023-07-17 | Bending-resistant I-steel anchor cable beam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220267743U (en) |
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2023
- 2023-07-17 CN CN202321875177.7U patent/CN220267743U/en active Active
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