CN219839974U

CN219839974U - Load-resisting structure for flexural member

Info

Publication number: CN219839974U
Application number: CN202320041866.1U
Authority: CN
Inventors: 曹憬; 李宗京
Original assignee: Hohai University HHU
Current assignee: Hohai University HHU
Priority date: 2023-01-07
Filing date: 2023-01-07
Publication date: 2023-10-17
Anticipated expiration: 2033-01-07

Abstract

The utility model relates to a load-resisting structure for a flexural member, which comprises the flexural member, wherein a load-resisting assembly is arranged on the bottom wall of the flexural member, the load-resisting assembly comprises mounting plates, anchor heads, tensioning materials and abutting pieces, the abutting pieces are connected to the bottom wall of the flexural member, the mounting plates are provided with two mounting plates, the two mounting plates are connected to the bottom wall of the flexural member, the abutting pieces are positioned between the two mounting plates, the anchor heads are detachably connected to the opposite side walls of the two mounting plates, the tensioning materials are connected between the two anchor heads, the abutting pieces are mounted on the tensioning materials, and when the abutting pieces abut against the bottom wall of the flexural member, the tensioning materials are in tension. The utility model has the effect of prolonging the service life of the flexural member.

Description

Load-resisting structure for flexural member

Technical Field

The utility model relates to the technical field of building structure reinforcement, in particular to a load-resistant structure for a flexural member.

Background

The flexural member is a member, typically a beam, a plate, or the like, whose axial force is usually negligible due to the combined action of bending moment and shearing force at the interface.

In general, the bending members (such as bridges, crane beams and the like) can bear conventional dead weight, dynamic load and secondary stress in the use process, and load cracks are easy to generate in long-term use, so that the service life of the bending members is influenced.

Disclosure of Invention

In order to improve the service life of the flexural member, the present utility model provides a load-resisting structure for the flexural member.

The utility model provides a load-resistant structure for a flexural member, which adopts the following technical scheme:

the utility model provides a load-resisting structure for flexural member, includes flexural member, be provided with anti load subassembly on the diapire of flexural member, anti load subassembly includes mounting panel, anchor head, stretch-draw material and supports tight piece, support tight piece and connect on the diapire of flexural member, the mounting panel is provided with two, two the mounting panel is all connected on the diapire of flexural member, support tight piece and be located two between the mounting panel, the anchor head can dismantle the connection on two the opposite lateral wall of mounting panel, stretch-draw material connects between two the anchor head, support tight piece and install stretch-draw material is last, when support tight piece and support the diapire of flexural member, stretch-draw material is in the tension state.

Through adopting above-mentioned technical scheme, the staff installs the anchor head on the mounting panel, utilizes stretch-draw material to exert pressure to the tight piece, makes the tight piece of support exert pressure the curved member, has realized the effect that the tight piece of support tightly acted on the curved member. The staff applies pressure to the abutting piece by using the tensioning material, so that the bending member is subjected to eccentric prestress, and the bending member is arched upwards, thereby counteracting part of self-weight stress of the bending member, improving the bearing capacity of the bending member, reducing the possibility of crack generation and prolonging the service life of the bending member.

Optionally, an inserting groove is formed in the mounting plate, the anchor head is inserted and matched in the inserting groove, and a locking piece for locking the anchor head is arranged on the mounting plate.

By adopting the technical scheme, the staff utilizes the splicing fit of the splicing groove and the anchor head, so that the installation position of the anchor head is limited, and the installation efficiency of the anchor head is improved.

Optionally, the retaining member is the lock bolt, the retaining member is provided with a plurality of, the retaining member passes in proper order the anchor head with the mounting panel, screw-fit has first lock nut on the retaining member, first lock nut is located the mounting panel is kept away from on the lateral wall of anchor head.

Through adopting above-mentioned technical scheme, when needs locking anchor head, the staff passes anchor head and mounting panel with the retaining member in proper order, and the first lock nut of rotation has realized the effect of locking anchor head.

Optionally, a second lock nut is screwed on the lock bolt, and the second lock nut abuts against the first lock nut.

Through adopting above-mentioned technical scheme, second lock nut is used for locking first lock nut, because there is interact pressure all the time between first lock nut and the second lock nut, all need overcome the frictional force between the screw thread that closes soon when any one nut is about to rotate, and external load changes, and pressure between two nuts exists all the time, has realized the locking effect of first lock nut.

Optionally, the tight piece is supported includes to support tight piece and fixed block, the fixed block is connected on the diapire of curved component, support tight piece and install on the stretch-draw material, the fixed block is close to support and be connected with a plurality of reference columns on tight piece's the lateral wall, support tight piece to correspond the position department of reference column opens there is the locating hole, the reference column grafting is in locating hole (2411).

By adopting the technical scheme, the possibility of damage to the abutting blocks and the tensioning materials exists along with long-time use. The abutting block is connected with the fixed block through the matching of the positioning column and the positioning hole, so that the abutting block and the tensioning material are convenient for workers to replace.

Optionally, the tight piece of support is last to open has dodges the groove, dodge two relative inside walls in groove and set up to first inner wall and second inner wall, first inner wall is close to the fixed block, first inner wall is circular-arc setting, follow the intermediate position of first inner wall to dodge the opening part in groove, first inner wall with distance between the second inner wall increases gradually, stretch-draw material passes dodge the groove, and laminating first inner wall.

By adopting the technical scheme, the staff utilizes the tensioning material to attach the first inner wall, so that the tensioning material is better stressed, and the possibility of damaging the tensioning material is reduced.

Optionally, the tensioning material is a prestressed steel strand.

By adopting the technical scheme, the prestressed steel strand has the advantages of high strength and good relaxation performance, can be in a tension state for a long time, and has a longer service life.

Optionally, a plurality of reinforcing plates are connected between the mounting plate and the flexural member.

By adopting the technical scheme, the reinforcing plate is used for reinforcing the structural strength of the mounting plate and reinforcing the connection strength between the mounting plate and the flexural member.

In summary, the present utility model includes at least one of the following beneficial technical effects:

1. the staff installs the anchor head on the mounting panel, utilizes stretch-draw material to exert pressure to the tight piece, makes tight piece exerted pressure flexural member, has realized the effect that tight piece supported flexural member. The staff applies pressure to the abutting piece by using the tensioning material, so that the bending member is subjected to eccentric prestress, and the bending member is arched upwards, thereby counteracting part of self-weight stress of the bending member, improving the bearing capacity of the bending member, reducing the possibility of crack generation and prolonging the service life of the bending member.

Drawings

Fig. 1 is a schematic view of the overall structure of a load-resisting structure for a flexural member in accordance with an embodiment of the utility model.

Fig. 2 is an exploded view of an embodiment of the present utility model for embodying the anchor head and mounting plate structure.

FIG. 3 is an exploded view of a positioning post and positioning hole structure according to an embodiment of the present utility model.

Fig. 4 is a cross-sectional view of an embodiment of the present utility model for embodying a relief groove structure.

Reference numerals illustrate: 1. a flexural member; 2. a load resistant assembly; 21. a mounting plate; 211. a reinforcing plate; 212. a plug-in groove; 213. a locking member; 214. a first lock nut; 215. a second lock nut; 22. an anchor head; 23. stretching the material; 24. a tightening member; 241. a tightening block; 2411. positioning holes; 2412. an avoidance groove; 2413. a first inner wall; 2414. a second inner wall; 242. a fixed block; 2421. and positioning columns.

Detailed Description

The utility model is described in further detail below with reference to fig. 1-4.

The embodiment of the utility model discloses a load-resistant structure for a flexural member. The flexural member of this embodiment is exemplified by a bridge. Referring to fig. 1, a load resisting structure for a flexural member comprises a flexural member 1, the bottom wall of the flexural member 1 being provided with a load resisting assembly 2, the load resisting assembly 2 comprising a mounting plate 21, an anchor head 22, a tensioning material 23 and a standoff 24.

Referring to fig. 1 and 2, the mounting plate 21 is provided with two, and two mounting plates 21 are set up relatively, and equal fixed connection is on the diapire of the flexural member 1, and the equal fixedly connected with reinforcing plate 211 in the position department that is close to mounting plate 21 length direction both ends between mounting plate 21 and the flexural member 1, reinforcing plate 211 is used for improving the structural strength of mounting plate 21. The two opposite side walls of the two mounting plates 21 are provided with inserting grooves 212, the anchor heads 22 are rectangular blocks, the anchor heads 22 are inserted and matched in the inserting grooves 212, the mounting plates 21 are provided with locking pieces 213, and the locking pieces 213 can be locking bolts. The locking members 213 are disposed at four corners of the anchor head 22, and the locking members 213 sequentially penetrate the anchor head 22 and the mounting plate 21. The retaining member 213 is threadably engaged with a first retaining nut 214, the first retaining nut 214 being located on a side wall of the mounting plate 21 remote from the anchor head 22. When the anchor head 22 needs to be locked, a worker sequentially passes the locking member 213 through the anchor head 22 and the mounting plate 21, and rotates the first locking nut 214, so that the anchor head 22 is mounted.

Referring to fig. 2, in order to reduce the possibility of the first lock nut 214 being shaken loose, the locking member 213 is screw-fitted with a second lock nut 215, and the second lock nut 215 abuts against the first lock nut 214.

Referring to fig. 1, the tension material 23 may be a prestressed steel strand, and the tension material 23 is fixedly connected between two anchor heads 22.

Referring to fig. 1 and 3, the abutting piece 24 includes an abutting block 241 and a fixing block 242. The fixing block 242 is fixedly connected to the middle position of the bottom wall of the flexural member 1, which is close to the flexural member 1, and a plurality of positioning columns 2421 are fixedly connected to the side wall of the fixing block 242, which is far away from the flexural member 1, in this embodiment, two positioning columns are taken as an example. The abutting block 241 is located below the fixing block 242, a positioning hole 2411 in plug-in fit with the positioning column 2421 is formed in the abutting block 241 corresponding to the positioning column 2421, and the abutting block 241 is sleeved on the positioning column 2421.

Referring to fig. 1, 3 and 4, the abutting block 241 is provided with a avoidance groove 2412, the inner side wall of the avoidance groove 2412 near the fixing block 242 is provided with a first inner wall 2413, and the inner wall opposite to the first inner wall 2413 is provided with a second inner wall 2414. The first inner wall 2413 is an arc surface, and from the middle position of the first inner wall 2413 to the notch of the avoidance groove 2412, the distance between the first inner wall 2413 and the second inner wall 2414 gradually increases, and the tensioning material 23 passes through the avoidance groove 2412 and is attached to the first inner wall 2413.

When the anti-load assembly 2 needs to be installed, a worker sleeves the abutting block 241 on the positioning column 2421, simultaneously inserts the anchor head 22 into the inserting groove 212, passes through the anchor head 22 and the mounting plate 21 by using the locking bolt, and rotates the first locking nut 214 and the second locking nut 215 successively to lock the anchor head 22, and at this time, the tensioning material 23 is in a tension state, so that the installation of the anti-load assembly 2 is realized.

The implementation principle of the load-resisting structure for the flexural member provided by the embodiment of the utility model is as follows: when the anti-load assembly 2 needs to be installed, a worker sleeves the abutting block 241 on the positioning column 2421, simultaneously inserts the anchor head 22 into the inserting groove 212, passes through the anchor head 22 and the mounting plate 21 by using the locking bolt, and rotates the first locking nut 214 and the second locking nut 215 successively to lock the anchor head 22, and at this time, the tensioning material 23 is in a tension state, so that the installation of the anti-load assembly 2 is realized.

The worker applies pressure to the abutting piece 24 by using the tension material 23, so that the bending member 1 is subjected to eccentric prestress, and the bending member 1 is arched, thereby counteracting part of self-weight stress of the bending member 1, improving the bearing capacity of the bending member 1, reducing the possibility of crack generation and prolonging the service life of the bending member 1.

The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.

Claims

1. A load-resistant structure for a flexural member, comprising a flexural member (1), characterized in that: the anti-load assembly (2) is arranged on the bottom wall of the flexural member (1), the anti-load assembly (2) comprises a mounting plate (21), anchor heads (22), tensioning materials (23) and abutting pieces (24), the abutting pieces (24) are connected to the bottom wall of the flexural member (1), the mounting plate (21) is provided with two mounting plates, the mounting plates (21) are connected to the bottom wall of the flexural member (1), the abutting pieces (24) are located between the two mounting plates (21), the anchor heads (22) are detachably connected to the opposite side walls of the two mounting plates (21), the tensioning materials (23) are connected between the two anchor heads (22), the abutting pieces (24) are mounted on the tensioning materials (23), and when the abutting pieces (24) abut against the bottom wall of the flexural member (1), the tensioning materials (23) are in a tensioning state.

2. A load bearing structure for a flexural member as defined in claim 1 wherein: the mounting plate (21) is provided with a plug-in groove (212), the anchor head (22) is plugged and matched in the plug-in groove (212), and the mounting plate (21) is provided with a locking piece (213) for locking the anchor head (22).

3. A load bearing structure for a flexural member as defined in claim 2 wherein: the locking piece (213) is a locking bolt, the locking piece (213) is provided with a plurality of, the locking piece (213) passes through anchor head (22) in proper order with mounting panel (21), screw thread fit has first lock nut (214) on the locking piece (213), first lock nut (214) are located mounting panel (21) are kept away from on the lateral wall of anchor head (22).

4. A load bearing structure for a flexural member as defined in claim 3 wherein: the locking bolt is provided with a second locking nut (215) in a threaded fit mode, and the second locking nut (215) abuts against the first locking nut (214).

5. A load bearing structure for a flexural member as defined in claim 1 wherein: the supporting piece (24) comprises a supporting block (241) and a fixing block (242), the fixing block (242) is connected to the bottom wall of the bent component (1), the supporting block (241) is installed on the tensioning material (23), a plurality of positioning columns (2421) are connected to the side wall, close to the supporting block (241), of the fixing block (242), positioning holes (2411) are formed in the positions, corresponding to the positioning columns (2421), of the supporting block (241), and the positioning columns (2421) are in plug-in fit with the positioning holes (2411).

6. A load bearing structure for a flexural member as defined in claim 5 wherein: the tight piece (241) is supported and is opened has dodges groove (2412), dodge two inside walls that groove (2412) are relative and set up into first inner wall (2413) and second inner wall (2414), first inner wall (2413) are close to fixed block (242), first inner wall (2413) are circular-arc setting, follow intermediate position of first inner wall (2413) extremely dodge the opening part in groove (2412), first inner wall (2413) with distance between second inner wall (2414) increases gradually, stretch-draw material (23) pass dodge groove (2412), and laminating first inner wall (2413).

7. A load bearing structure for a flexural member as defined in claim 6 wherein: the tensioning material (23) is a prestressed steel strand.

8. A load bearing structure for a flexural member as defined in claim 1 wherein: a plurality of reinforcing plates (211) are connected between the mounting plate (21) and the flexural member (1).