CN213596822U - Reinforced concrete box culvert reinforcing apparatus - Google Patents
Reinforced concrete box culvert reinforcing apparatus Download PDFInfo
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- CN213596822U CN213596822U CN202022156993.5U CN202022156993U CN213596822U CN 213596822 U CN213596822 U CN 213596822U CN 202022156993 U CN202022156993 U CN 202022156993U CN 213596822 U CN213596822 U CN 213596822U
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Abstract
A reinforced concrete box culvert reinforcing device belongs to the field of concrete reinforcement, and the utility model aims to solve the problems that under the influence of the external natural environment, structural adhesive is easy to age and lose efficacy, gaps are formed between a steel plate or fiber cloth and an original structure, even cavitation can occur, and the steel plate or the fiber cloth which is externally reinforced cannot be coordinated with the original structure to bear force, in the reinforced concrete box culvert reinforcing device, N connecting steel bars are evenly distributed at two sides of the cracks of the inner wall of the reinforced concrete box culvert, the other end of a steel bar part in the connecting steel bars is embedded on the inner wall of the reinforced concrete box culvert, the height of the gap is 1/3-1/2 of the length of the steel bar part, a reinforcing plate is arranged opposite to the inner wall of the reinforced concrete box culvert with cracks, and a UHPC pouring layer is arranged between the reinforcing plate component and the inner wall of the reinforced concrete box culvert with cracks, and the N connecting steel bars are fixedly connected with the reinforced plate component through the UHPC pouring layer. The utility model is used for consolidate the crack department of reinforced concrete box culvert inner wall.
Description
Technical Field
The utility model belongs to the concrete reinforcement field, concretely relates to reinforced concrete box culvert reinforcing apparatus.
Background
With the rapid improvement of the economic construction level of China, the traffic industry is rapidly developed, and the traffic load and the traffic volume are greatly increased. Under the combined action of overload and external environment, the early-built reinforced concrete box culvert has diseases of different degrees, such as transverse and vertical cracks, concrete peeling corrosion and the like, and the completeness of the reinforced concrete box culvert is seriously influenced.
At present, the main measures for reinforcing the reinforced concrete box culvert include steel plate sticking, fiber cloth sticking and the like. The steel plate or the fiber cloth is bonded with the original structure concrete by the structural adhesive taking epoxy resin as a main raw material, but under the influence of the external natural environment, the structural adhesive is easy to age and lose efficacy, gaps occur between the steel plate or the fiber cloth and the original structure, and even a void phenomenon occurs, so that the outer layer reinforced steel plate or the fiber cloth cannot be coordinated with the original structure to bear force.
UHPC (Ultra-High Performance Concrete) is a novel fiber reinforced cement-based composite material, has the compressive strength of more than 150MPa, the tensile strength of more than 5MPa and good durability. The steel plate-UHPC combined reinforcing device is an organic combination of steel plate pasting and section increasing reinforcing, and can exert the advantages of the steel plate and the section increasing reinforcing.
In summary, it is very practical to develop a reinforced concrete box culvert reinforcing device made of a combination of UHPC material and steel plates to solve the problems existing in the existing reinforced concrete box culvert reinforcement.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problems that the existing reinforced concrete box culvert reinforcing device is easy to age and lose efficacy under the influence of the external natural environment, gaps are formed between the steel plates or the fiber cloth and the original structure, even a cavity phenomenon occurs, and the steel plates or the fiber cloth which are externally reinforced cannot be coordinated with the original structure to bear force, thereby providing a reinforced concrete box culvert reinforcing device;
a reinforced concrete box culvert reinforcing device comprises a UHPC pouring layer, a reinforcing plate assembly and N connecting reinforcing steel bars, wherein N is a positive integer;
the connecting steel bar comprises a first steel bar part, a second steel bar part and a connecting arc part, one end of the first steel bar part is fixedly connected with one end of the connecting arc part, one end of the second steel bar part is fixedly connected with the other end of the connecting arc part, and the central angle corresponding to the connecting arc part is 90 degrees;
the reinforced concrete box culvert is characterized in that the N connecting steel bars are uniformly distributed on two sides of cracks on the inner wall of the reinforced concrete box culvert, the other end of a first steel bar part in the connecting steel bars is embedded in the inner wall of the reinforced concrete box culvert, a gap is formed between the inner wall of the reinforced concrete box culvert and the other end of a second steel bar part in the connecting steel bars, the height of the gap is 1/3-1/2 of the length of the first steel bar part, the reinforcing plate component is arranged opposite to the inner wall of the reinforced concrete box culvert with the cracks, a UHPC pouring layer is arranged between the reinforcing plate component and the inner wall of the reinforced concrete box culvert with the cracks, and the N connecting steel bars are fixedly connected with the reinforcing plate component through the PC UH;
further, the reinforcing plate assembly comprises a reinforcing plate and M connecting studs, wherein M is a positive integer;
the M connecting studs are uniformly distributed on one side, facing the inner wall of the reinforced concrete box culvert, of the reinforcing plate, and one end of each connecting stud is fixedly connected with the reinforcing plate;
furthermore, the connecting studs of two adjacent rows in the reinforcing plate assembly are arranged in a staggered manner;
further, the connecting peg comprises a limiting part and a fixing part;
one end of the fixing part is fixedly connected with the reinforcing plate, the other end of the fixing part is connected with the other end of the limiting part, and the end face size of one end, far away from the fixing part, of the limiting part is larger than that of the connecting end of the limiting part and the fixing part;
furthermore, the connecting stud comprises a limiting part, a fixing part and an adjusting bolt;
one end of the fixing part is fixedly connected with the reinforcing plate, a threaded blind hole is processed at the other end of the fixing part, the axis of the nut blind hole is perpendicular to the reinforcing plate, one end of an adjusting bolt is arranged in the threaded blind hole and is in threaded connection with the fixing part, and the other end of the adjusting bolt is connected with one end of the limiting part;
furthermore, the connecting stud comprises a limiting part, a fixing part, an adjusting bolt, a locking nut and a screwing part;
one end of the fixing part is fixedly connected with the reinforcing plate, the other end of the fixing part is provided with a first through hole, the axis of the first through hole is perpendicular to the reinforcing plate, M second through holes are uniformly distributed and processed on the reinforcing plate, each second through hole is coaxially and correspondingly arranged with one first through hole, one end of the adjusting bolt sequentially penetrates through the first through hole and the second through hole and is arranged outside the reinforcing plate, the locking nut and the screwing part are arranged outside the reinforcing plate, the locking nut is sleeved on the adjusting bolt and is in threaded connection with the adjusting bolt, the screwing part is fixedly connected to the end part of the adjusting bolt, and the other end of the adjusting bolt is connected with the limiting part;
furthermore, a blind hole is processed at one end of the limiting part close to the fixing part, a bearing is arranged in the blind hole, the other end of the adjusting bolt is inserted into the bearing, a bearing outer ring of the bearing is fixedly connected with the limiting part, and a bearing outer ring of the bearing is fixedly connected with the adjusting bolt;
furthermore, a pointed bulge is processed at one end of the limiting part, which is far away from the fixing part;
compared with the prior art, the utility model following beneficial effect has:
the utility model provides a reinforced concrete box culvert reinforcing apparatus, the UHPC concrete etc. that pour between bar planting, welded stud and primary structure and the newly-increased steel sheet through primary structure concrete surface and steel sheet on make newly-increased steel sheet and concrete and primary structure form wholly, common atress. And the outside has the steel sheet of stud, not only increased girder rigidity, the problem of concrete lower edge fracture has been solved, and can replace the atress reinforcing bar, simultaneously can be used as the template of concreting again, it is convenient fast to construct, good atress performance and constructability have, UHPC concrete is a novel fiber reinforcement cement base combined material simultaneously, compressive strength exceeds 150MPa, tensile strength exceeds 5MPa, good durability has, replace current concrete structure through UHPC concrete, can increase reinforcing apparatus's bearing capacity and structural rigidity, still do benefit to reinforcing apparatus's waterproof nature simultaneously, be applicable to bridge structures more.
Drawings
FIG. 1 is a schematic main sectional view of the present invention;
fig. 2 is a schematic top view of the reinforcing plate assembly of the present invention;
FIG. 3 is a schematic front view of the reinforcing plate assembly of the present invention (fixing pegs);
FIG. 4 is a schematic front view of the reinforcing plate assembly of the present invention (adjustable pegs);
FIG. 5 is a schematic front view of the reinforcing plate assembly of the present invention (external adjustment pegs);
FIG. 6 is a schematic view of a connection peg according to the present invention;
FIG. 7 is a schematic view of a connection peg of the present invention (adjustable);
FIG. 8 is a schematic view of a connection peg of the present invention (external adjustment);
FIG. 9 is a schematic view of a connection stud of the present invention (adjustable with bearing);
FIG. 10 is a schematic view of a connection peg of the present invention (with bearing external adjustment);
the drawing comprises 1 connecting steel bar, 2UHPC pouring layers, 3 reinforcing plate assemblies, 31 reinforcing plates, 32 connecting studs, 321 limiting parts, 322 fixing parts, 323 adjusting bolts, 324 locking nuts, 325 screwing parts and 326 bearings.
Detailed Description
The first embodiment is as follows: the embodiment is described with reference to fig. 1 to 10, and the embodiment provides a reinforced concrete box culvert reinforcing device, which comprises a UHPC pouring layer 2, a reinforcing plate assembly 3 and N connecting steel bars 1, wherein N is a positive integer;
the connecting steel bar 1 comprises a first steel bar part, a second steel bar part and a connecting arc part, one end of the first steel bar part is fixedly connected with one end of the connecting arc part, one end of the second steel bar part is fixedly connected with the other end of the connecting arc part, and the central angle corresponding to the connecting arc part is 90 degrees;
n connecting reinforcement 1 equipartition is in the cracked both sides of reinforced concrete box culvert inner wall, the other end of a reinforcement portion is planted on reinforced concrete box culvert inner wall in the connecting reinforcement 1, and be equipped with the clearance between the reinforced concrete box culvert inner wall and the other end of No. two reinforcement portions in connecting reinforcement 1, the height in clearance is 1/3-1/2 of a reinforcement portion length, gusset plate subassembly 3 sets up with the reinforced concrete box culvert inner wall that has the crack relatively, and be equipped with UHPC between gusset plate subassembly 3 and the reinforced concrete box culvert inner wall that has the crack and pour layer 2, N connecting reinforcement 1 pours layer 2 and gusset plate subassembly 3 fixed connection through UHPC and pours layer 2
The utility model provides a reinforced concrete box culvert reinforcing apparatus makes newly-increased steel sheet and concrete and original structure form wholly, common atress through concrete that concrete poured between the peg on the bar planting of original structure concrete surface, the steel sheet and original structure and newly-increased steel sheet. The steel plate with the studs on the outer side not only increases the rigidity of the main beam and solves the problem of cracking of the lower edge of the concrete, but also can replace the stressed steel bar and can be used as a template for pouring concrete, the construction is rapid and convenient, the construction performance is good, the number of the connecting steel bars 1 is determined according to the length of the crack and the state of the crack, under the general condition, the distance between two adjacent connecting bars 1 for a slight crack is 100mm-300mm, the distance between two adjacent connecting steel bars 1 is 80mm-150mm under the condition of serious crack degree, and dislocation set between two adjacent connecting reinforcement 1, the crack width is less than 0.2mm for slight, is more than 0.2mm for serious, and No. one reinforcing bar portion is plum blossom or rectangle net shape when the bar planting is arranged to reduce the damage to the structure, the bar planting construction should still avoid original structure reinforcing bar.
The second embodiment is as follows: the present embodiment is described with reference to fig. 1 to 10, and the present embodiment further defines the reinforcing plate assembly 3 according to the first embodiment, in the present embodiment, the reinforcing plate assembly 3 includes a reinforcing plate 31 and M connecting pegs 32, where M is a positive integer;
the M connecting studs 32 are uniformly distributed on one side of the reinforcing plate 31 facing the inner wall of the reinforced concrete box culvert, and one end of each connecting stud 32 is fixedly connected with the reinforcing plate 31. Other components and connection modes are the same as those of the first embodiment.
The utility model discloses in, connecting stud 32 is arranged in inlaying the dress and pours layer 2 and support gusset plate 31 in UHPC, pours the concrete solidification back in layer 2 along with UHPC, makes primary structure and gusset plate subassembly 3 connect as an organic wholely, gusset plate 31 is the steel sheet.
The third concrete implementation mode: the present embodiment is described with reference to fig. 1 to 10, and the present embodiment further defines the reinforcing plate assembly 3 according to the second embodiment, in which the connecting pins 32 in two adjacent rows of the reinforcing plate assembly 3 are arranged in a staggered manner. The other components and the connection mode are the same as those of the second embodiment.
So set up, be favorable to connecting that the area of contact between 32 and the UHPC of stud pours layer 2 is more even to reach better connection and supporting effect
The fourth concrete implementation mode: the present embodiment is described with reference to fig. 1 to 10, and the present embodiment further defines the connection peg 32 according to the third embodiment, in which the connection peg 32 includes a limiting portion 321 and a fixing portion 322;
one end of the fixing portion 322 is fixedly connected to the reinforcing plate 31, the other end of the fixing portion 322 is connected to the other end of the limiting portion 321, and the end face of the limiting portion 321, which is far away from the fixing portion 322, is larger than the end face of the connecting end of the limiting portion 321 and the fixing portion 322. Other components and connection modes are the same as those of the third embodiment.
So set up, when the crack appears at reinforced concrete box culvert inner wall top, the utility model discloses a flip-chip is on reinforced concrete box culvert inner wall, and the top size of spacing portion 321 is great to be favorable to the increase and the area of contact of UHPC pouring layer 2, increases the compactness of connecting.
The fifth concrete implementation mode: the present embodiment is described with reference to fig. 1 to 10, and the present embodiment further defines the connection peg 32 according to the fourth embodiment, and in the present embodiment, the connection peg 32 includes a limiting portion 321, a fixing portion 322, and an adjusting bolt 323;
one end of the fixing portion 322 is fixedly connected with the reinforcing plate 31, a threaded blind hole is processed at the other end of the fixing portion 322, the axis of the nut blind hole is perpendicular to the reinforcing plate 31, one end of the adjusting bolt 323 is arranged in the threaded blind hole, the adjusting bolt 323 is in threaded connection with the fixing portion 322, and the other end of the adjusting bolt 323 is connected with one end of the limiting portion 321. The other components and the connection mode are the same as those of the fourth embodiment.
In this embodiment, be connected through adjusting bolt 323 between spacing portion 321 and the fixed part 322, can adjust the distance between spacing portion 321 and the fixed part 322, so that cooperate the UHPC of different thickness to pour layer 2, change the different contact area of connecting peg 3 and UHPC through adjusting the distance between spacing portion 321 and the fixed part 322 and pour layer 2 and insert the degree of depth at UHPC pouring layer 2, so that reach more connection effect, the terminal surface diameter of spacing portion 321 is greater than the terminal surface diameter of fixed part 322 simultaneously.
The sixth specific implementation mode: the present embodiment is described with reference to fig. 1 to 10, and the present embodiment further defines the connecting peg 32 according to the fifth embodiment, in which the connecting peg 32 includes a limiting portion 321, a fixing portion 322, an adjusting bolt 323, a lock nut 324 and a screwing portion 325;
one end of the fixing portion 322 is fixedly connected with the reinforcing plate 31, a first through hole is processed at the other end of the fixing portion 322, the axis of the first through hole is perpendicular to the reinforcing plate 31, M second through holes are uniformly processed on the reinforcing plate 31, each second through hole is coaxially and correspondingly arranged with one first through hole, one end of the adjusting bolt 323 sequentially penetrates through the first through hole and the second through hole and is arranged outside the reinforcing plate 31, the locking nut 324 and the screwing portion 325 are arranged outside the reinforcing plate 31, the locking nut 324 is sleeved on the adjusting bolt 323, the locking nut 324 is in threaded connection with the adjusting bolt 323, the screwing portion 325 is fixedly connected to the end portion of the adjusting bolt 323, and the other end of the adjusting bolt 323 is connected with the limiting portion 321. The other components and the connection mode are the same as the fifth embodiment mode.
In this embodiment, the spacing portion 321 is connected with the fixing portion 322 by the adjusting bolt 323, the distance between the spacing portion 321 and the fixing portion 322 can be adjusted, so as to be matched with UHPC casting layers 2 with different thicknesses, the contact area between different connecting studs 3 and UHPC casting layers 2 and the depth of insertion into the UHPC casting layers 2 are changed by adjusting the distance between the spacing portion 321 and the fixing portion 322, so as to achieve a better connecting effect, and simultaneously, the end surface diameter of the spacing portion 321 is larger than that of the fixing portion 322, compared with the technical scheme in the fifth embodiment, the distance between the spacing portion 321 and the fixing portion 322 can be adjusted externally in this embodiment, when the reinforcing plate assembly 3 is matched with an original concrete layer, the reinforcing plate assembly 3 can be arranged opposite to the original concrete layer, according to the predetermined thickness of the UHPC casting layer 2, the length of each connecting stud 32 can be adjusted directly from the outside, compared with the technical scheme in the fifth specific embodiment, the adjustment needs to be carried out on the inner side of the reinforcing plate assembly 3 during each adjustment, and the method is more practical.
The seventh embodiment: the present embodiment is described with reference to fig. 1 to 10, and is further limited to the limiting portion 321 according to the sixth embodiment, in the present embodiment, a blind hole is processed at one end of the limiting portion 321 close to the fixing portion 322, a bearing 326 is disposed in the blind hole, the other end of the adjusting bolt 323 is inserted into the bearing 326, a bearing outer ring of the bearing 326 is fixedly connected to the limiting portion 321, and a bearing outer ring of the bearing 326 is fixedly connected to the adjusting bolt 323. Other components and connection modes are the same as those of the sixth embodiment.
In this embodiment, when adjusting the distance of the connection pin 32 inserted into the UHPC casting layer 2, the linear motion of the stopper 321 can be ensured.
The specific implementation mode is eight: the present embodiment is described with reference to fig. 1 to 10, and the present embodiment further defines the stopper 321 according to the seventh embodiment, and in the present embodiment, a pointed protrusion is formed at one end of the stopper 321 away from the fixing portion 322. The other components and the connection mode are the same as those of the seventh embodiment.
So configured, it is beneficial to reduce the resistance of the connection stud 32 when it is inserted into the UHPC casting layer 2.
Principle of operation
When the utility model is used, firstly, a reinforcing scheme is designed according to the crack condition of the inner wall of the reinforced concrete box culvert, a plurality of connecting reinforcements 1 are distributed around the crack of the inner wall of the reinforced concrete box culvert according to the distribution of the connecting reinforcements 1 in the reinforcing scheme, pouring plates are arranged around the distributed areas of the connecting reinforcements 1 and are used for pouring concrete, the size of the reinforcing plate 31 is selected according to the size of the enclosed area of the pouring plates, and the size of the reinforcing plate 31 is ensured to be attached to the size enclosed by the pouring plates (generally, the reinforcing plate is rectangular);
if the structure (fixing stud) of the connecting stud 32 in the fourth embodiment is adopted, the reinforcing plate 31 is attached to the area surrounded by the pouring plates, then concrete is poured to form the UHPC pouring layer 2, and the UHPC pouring layer 2 is used for connecting the original structure and the reinforcing plate 31 into a whole;
if the structure (adjustable pin) of the connection pin 32 in the fifth embodiment is adopted, the length (i.e., the distance between the limiting part 321 and the fixing part 322) of each connection pin 32 inserted into the UHPC casting layer 2 needs to be adjusted first, so that an operator can adjust the length of the UHPC casting layer 2 according to different thicknesses of the UHPC casting layer 2 and can adjust the length of the UHPC casting layer, the insertion length of the layers of the connecting pins 32 at different positions is adjusted, such as the insertion length of the connecting pins 32 is gradually increased from the lower row to the upper row, or the insertion length of the coupling pins 32 in the partial regions is increased so as to achieve a better coupling effect, and after the length of the coupling pins 32 in each region is adjusted, after the reinforcing plate 31 is attached to the area surrounded by the pouring plates, concrete is poured to form a UHPC pouring layer 2, and the original structure and the reinforcing plate 31 are connected into a whole by utilizing the UHPC pouring layer 2;
if the structure of the connecting stud 32 in the sixth embodiment (the stud adjustable from the outside) is adopted, the working principle is the same as that of the structure of the connecting stud 32 in the fifth embodiment, and the method has the advantages that the reinforcing plate 31 can be attached to the area surrounded by the pouring plates, the insertion length of the connecting stud 32 can be directly adjusted from the outside according to actual conditions, the concrete is poured after adjustment, and the insertion length of the connecting stud 32 can be slightly adjusted when the concrete is not solidified, so that the optimal connecting effect is achieved.
In the work, after the UHPC pouring layer 2 is formed, the pouring plate on the periphery of the UHPC pouring layer 2 is detached, so that accidents caused by subsequent falling off are prevented.
Claims (8)
1. The utility model provides a reinforced concrete box culvert reinforcing apparatus which characterized in that: the reinforcing device comprises a UHPC pouring layer (2), a reinforcing plate component (3) and N connecting steel bars (1), wherein N is a positive integer;
the connecting steel bar (1) comprises a first steel bar part, a second steel bar part and a connecting arc part, one end of the first steel bar part is fixedly connected with one end of the connecting arc part, one end of the second steel bar part is fixedly connected with the other end of the connecting arc part, and the central angle corresponding to the connecting arc part is 90 degrees;
the reinforced concrete box culvert is characterized in that the N connecting steel bars (1) are uniformly distributed on two sides of a crack of the inner wall of the reinforced concrete box culvert, the other end of a first steel bar part in the connecting steel bars (1) is implanted on the inner wall of the reinforced concrete box culvert, a gap is formed between the inner wall of the reinforced concrete box culvert and the other end of a second steel bar part in the connecting steel bars (1), the height of the gap is 1/3-1/2 of the length of the first steel bar part, the reinforcing plate component (3) is arranged opposite to the inner wall of the reinforced concrete box culvert with the crack, a UHPC pouring layer (2) is arranged between the reinforcing plate component (3) and the inner wall of the reinforced concrete box culvert with the crack, and the N connecting steel bars (1) are fixedly connected with the reinforcing plate component (3) through the UHPC pouring layer (.
2. The reinforced concrete box culvert reinforcing apparatus of claim 1, wherein: the reinforcing plate assembly (3) comprises a reinforcing plate (31) and M connecting studs (32), wherein M is a positive integer;
m connecting studs (32) are uniformly distributed on one side of the reinforcing plate (31) facing the inner wall of the reinforced concrete box culvert, and one end of each connecting stud (32) is fixedly connected with the reinforcing plate (31).
3. The reinforced concrete box culvert reinforcing apparatus of claim 2, wherein: the connecting studs (32) of two adjacent rows in the reinforcing plate component (3) are arranged in a staggered manner.
4. The reinforced concrete box culvert reinforcing apparatus of claim 3, wherein: the connecting stud (32) comprises a limiting part (321) and a fixing part (322);
one end of the fixing part (322) is fixedly connected with the reinforcing plate (31), the other end of the fixing part (322) is connected with the other end of the limiting part (321), and the end face size of one end, far away from the fixing part (322), of the limiting part (321) is larger than the end face size of the connecting end of the limiting part (321) and the fixing part (322).
5. The reinforced concrete box culvert reinforcing apparatus of claim 3, wherein: the connecting stud (32) comprises a limiting part (321), a fixing part (322) and an adjusting bolt (323);
one end of the fixing portion (322) is fixedly connected with the reinforcing plate (31), a threaded blind hole is machined in the other end of the fixing portion (322), the axis of the nut blind hole is perpendicular to the reinforcing plate (31), one end of the adjusting bolt (323) is arranged in the threaded blind hole, the adjusting bolt (323) is in threaded connection with the fixing portion (322), and the other end of the adjusting bolt (323) is connected with one end of the limiting portion (321).
6. The reinforced concrete box culvert reinforcing apparatus of claim 3, wherein: the connecting stud (32) comprises a limiting part (321), a fixing part (322), an adjusting bolt (323), a locking nut (324) and a screwing part (325);
one end of the fixing portion (322) is fixedly connected with the reinforcing plate (31), a first through hole is machined in the other end of the fixing portion (322), the axis of the first through hole is perpendicular to the reinforcing plate (31), M second through holes are uniformly machined in the reinforcing plate (31), each second through hole and one first through hole are coaxially and correspondingly arranged, one end of the adjusting bolt (323) sequentially penetrates through the first through hole and the second through hole and is arranged outside the reinforcing plate (31), the locking nut (324) and the screwing portion (325) are arranged outside the reinforcing plate (31), the locking nut (324) is sleeved on the adjusting bolt (323), the locking nut (324) is in threaded connection with the adjusting bolt (323), the screwing portion (325) is fixedly connected to the end portion of the adjusting bolt (323), and the other end of the adjusting bolt (323) is connected with the limiting portion (321).
7. The reinforced concrete box culvert reinforcing apparatus of claim 5 or 6, wherein: the limiting part (321) is provided with a blind hole at one end close to the fixing part (322), a bearing (326) is arranged in the blind hole, the other end of the adjusting bolt (323) is inserted into the bearing (326), the bearing outer ring of the bearing (326) is fixedly connected with the limiting part (321), and the bearing outer ring of the bearing (326) is fixedly connected with the adjusting bolt (323).
8. The reinforced concrete box culvert reinforcing apparatus of claim 4, wherein: one end of the limiting part (321) far away from the fixing part (322) is processed with a pointed bulge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022156993.5U CN213596822U (en) | 2020-09-27 | 2020-09-27 | Reinforced concrete box culvert reinforcing apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022156993.5U CN213596822U (en) | 2020-09-27 | 2020-09-27 | Reinforced concrete box culvert reinforcing apparatus |
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| CN213596822U true CN213596822U (en) | 2021-07-02 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114033205A (en) * | 2021-11-05 | 2022-02-11 | 北京航空航天大学 | Method for improving performance of existing steel-concrete composite beam |
| CN114197338A (en) * | 2022-01-10 | 2022-03-18 | 湖南大学 | Large-span PC box girder bridge reinforcing structure and reinforcing method |
-
2020
- 2020-09-27 CN CN202022156993.5U patent/CN213596822U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114033205A (en) * | 2021-11-05 | 2022-02-11 | 北京航空航天大学 | Method for improving performance of existing steel-concrete composite beam |
| CN114197338A (en) * | 2022-01-10 | 2022-03-18 | 湖南大学 | Large-span PC box girder bridge reinforcing structure and reinforcing method |
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Address after: No.90, Qingbin Road, Nangang District, Harbin City, Heilongjiang Province Patentee after: Heilongjiang transportation planning Design and Research Institute Group Co.,Ltd. Address before: No.90, Qingbin Road, Nangang District, Harbin City, Heilongjiang Province Patentee before: Heilongjiang Highway Survey and Design Institute |