CN113638324B - Reinforcing apparatus of mountain bridge - Google Patents
Reinforcing apparatus of mountain bridge Download PDFInfo
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- CN113638324B CN113638324B CN202110828181.7A CN202110828181A CN113638324B CN 113638324 B CN113638324 B CN 113638324B CN 202110828181 A CN202110828181 A CN 202110828181A CN 113638324 B CN113638324 B CN 113638324B
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D22/00—Methods or apparatus for repairing or strengthening existing bridges ; Methods or apparatus for dismantling bridges
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Abstract
The invention provides a reinforcing device for a mountain bridge, which is characterized in that an upper reinforcing system and a lower reinforcing system are arranged to vertically reinforce the bridge, anchor beams are arranged in the upper reinforcing system and the lower reinforcing system, the upper and lower supporting and reinforcing are provided by the anchor beams, the integral reinforcing and stress performance of the bridge is improved, the upper anchor beam and the lower anchor beam are anchored in a mountain body by anchor rods, so that the upper anchor beam and the lower anchor beam are firmly connected with the mountain body, and a prestress reinforcing system is formed by upper and lower inhaul cables, so that the reinforcing effect is further improved.
Description
Technical field: the invention relates to the field of bridge engineering, in particular to a reinforcing device for a mountain bridge.
The background technology is as follows: bridge construction in mountain areas, especially small span bridges, is generally a bridge form in which a bridge Duan Guding is constructed between two mountains and connected in the mountains, and the bridge form is convenient for construction and low in engineering cost, but because the bridge Duan Qianru mountains are main bearing parts for stress, the parts are easy to damage for bridge structures with long service time, and the structural safety is affected. Some existing reinforcements are mostly subjected to local grouting anchoring and the like, or local steel beam anchoring and supporting, and as the mountain body of the bridge part is stressed for a long time, the operation can damage the connection performance of the bridge and the mountain body anchoring end, so that the safety of the structure is affected, and the reinforcement effect is general.
The invention comprises the following steps: aiming at the problems in the prior art, the invention provides a reinforcing device for a mountain bridge.
The invention provides a reinforcing device for a mountain bridge, which is used for a mountain small-span bridge, and the bridge is built between two mountain bodies, and is characterized in that: the reinforcing device comprises an upper reinforcing system and a lower reinforcing system, the lower reinforcing system comprises a lower anchor beam, a left supporting piece, a right supporting piece, a left supporting diagonal brace and a right supporting diagonal brace which are arranged at the lower part of the lower anchor beam, a front supporting column, a rear supporting column and a supporting diagonal beam which are arranged at the upper part of the lower anchor beam, the lower anchor beam is of a reinforced concrete structure, a plurality of anchor rods are driven into the position of the lower anchor beam, the anchor rods penetrate into a mountain body for a certain length, the parts of the anchor rods, which extend out of the mountain body, are provided with expansion parts, the parts of the anchor rods, which extend out of the mountain body, are bound with reinforcement cages to form a lower anchor beam reinforcement cage, concrete is poured, a reinforced concrete structure is formed, the left supporting piece and the right supporting piece are respectively positioned at the lower part of the lower anchor beam, one ends of the left supporting piece and the right supporting piece are respectively penetrated into the mountain body and anchored in the mountain body, the left support piece is provided with a left support diagonal bracing, the right support piece is provided with a right support diagonal bracing, one end of the left support diagonal bracing is connected with the upper end of the left support piece, one end of the left support diagonal bracing is connected with the lower end of the lower anchor beam, one end of the right support diagonal bracing is connected with the upper end of the right support piece, one end of the right support diagonal bracing is connected with the lower end of the lower anchor beam, the lower anchor beam is provided with a front support column, a rear support column and a support diagonal beam, the upper ends of the front support column and the rear support column are provided with a reinforcing cross beam, the width of the reinforcing cross beam is larger than that of the bridge, the reinforcing cross beam is tightly contacted with the bottom surface of the bridge so as to support the bridge, the upper ends of the support diagonal beams are respectively connected with the reinforcing cross beam and the rear support column, the lower ends of the support diagonal beams are respectively connected with the lower anchor beam and the front support column, the upper reinforcement system comprises an upper anchor beam, a left stay rope and a right stay rope, wherein the upper anchor beam is of a reinforced concrete structure, a plurality of anchor rods are driven into the position of the upper anchor beam, the anchor rods penetrate into a mountain body for a certain length, the parts, extending out of the mountain body, of the anchor rods are provided with expansion parts, the parts, extending out of the mountain body, of the anchor rods are used for binding reinforcement cages to form the upper anchor beam reinforcement cages, concrete is poured, the reinforced concrete structure is formed, the width of the upper anchor beam is the same as that of the reinforcement cross beam, the left stay rope and the right stay rope are respectively arranged on the left side and the right side of the bridge, the upper ends of the left stay rope and the right stay rope penetrate through reserved holes in the upper anchor beam to be anchored on the upper anchor beam, and the lower ends of the left stay rope and the right stay rope penetrate through reserved holes in the reinforcement cross beam to be anchored on the reinforcement cross beam.
Preferably, the upper ends of the left inhaul cable and the right inhaul cable are anchoring fixed ends, the lower ends of the left inhaul cable and the right inhaul cable are anchoring tensioning ends, the left inhaul cable and the right inhaul cable can be prestressed and tensioned by the prestress tensioning device by means of the anchoring tensioning ends, and therefore a prestress reinforcing system is formed.
Preferably, the upper anchor beam is provided with a preformed hole corresponding to the part penetrated by the left inhaul cable and the right inhaul cable, and the preformed hole is provided in the following manner: after binding of the upper anchor beam reinforcement cage is finished, a plastic sleeve is arranged at the position, corresponding to the left inhaul cable and the right inhaul cable, of the upper anchor beam, concrete is poured, and the plastic sleeve is not removed, so that a reserved hole is formed.
Preferably, the front support column, the rear support column and the support diagonal beam are all of steel structures, and are fixed on the upper end face of the lower anchor beam.
The working principle of the invention is as follows:
the two ends of the bridge in the mountain area are respectively provided with the reinforcing system, the reinforcing system is divided into an upper reinforcing system and a lower reinforcing system, the upper reinforcing system and the lower reinforcing system are arranged at the upper part and the lower part of the bridge, and when the upper reinforcing system and the lower reinforcing system are arranged, the influence on the mountain body of the bridge part can be reduced, so that the structural safety of the bridge is ensured;
when the upper and lower reinforcement systems are constructed, the upper and lower anchor beams are built, the overall connection performance between the upper and lower anchor beams and the mountain is improved through the anchor rods and the cast-in-situ structure, and the bridge stress is converted into the mountain through the conversion of the stress system, so that the overall stress performance of the bridge is improved;
the lower anchor beam is used as a supporting component, and the truss reinforcing system is arranged on the lower anchor beam to improve the support of the lower part of the bridge, and the lower part of the lower anchor beam is further provided with a left supporting piece, a right supporting piece and an inclined support, so that the support of the lower anchor beam is improved;
the upper anchor beam and the bridge form a prestress reinforcement system through the reinforcement cross beam, the stress performance of the bridge is improved by utilizing the tensioning arrangement of the left and right inhaul cables, the integral stress performance of the bridge is improved by utilizing the cooperation of the upper and lower reinforcement systems, the structure is convenient to construct, and the prestress reinforcement system has an important effect on improving the stress of the bridge in mountain areas.
The invention has the advantages that:
according to the bridge reinforcing device for the mountain area, the upper reinforcing system and the lower reinforcing system are arranged to reinforce the bridge up and down, the anchor beams are arranged in the upper reinforcing system and the lower reinforcing system, the anchor beams are used for providing up and down supporting reinforcement, the overall reinforcing and stress performance of the bridge is improved, the upper anchor beams and the lower anchor beams are anchored in the mountain body by the anchor rods, so that the bridge is firmly connected with the mountain body, the upper and lower guy ropes are used for forming a prestress reinforcing system, and the reinforcing effect is further improved.
Description of the drawings:
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of a lower reinforcement system setup;
FIG. 3 is a schematic view of a lower anchor beam and support column arrangement;
FIG. 4 is a schematic diagram of an upper reinforcement system setup;
fig. 5 is a schematic view of the lower anchor beam and left and right support members.
The specific embodiment is as follows: the following is a specific explanation of the structure defined by the present invention with reference to the drawings.
The invention provides a reinforcing device for a mountain bridge 1, which is used for a mountain small-span bridge 1, wherein the bridge 1 is built between two mountain bodies, and is characterized in that: the reinforcing device comprises an upper reinforcing system and a lower reinforcing system, the lower reinforcing system comprises a lower anchor beam 2, a left supporting piece 3, a right supporting piece 4, a left supporting diagonal brace 5 and a right supporting diagonal brace 6 which are arranged at the lower part of the lower anchor beam 2, a front supporting column 7, a rear supporting column 8 and a supporting diagonal beam 9 which are arranged at the upper part of the lower anchor beam 2, wherein the lower anchor beam 2 is of a reinforced concrete structure, a plurality of anchor rods 10 are driven into the position of the lower anchor beam 2, the anchor rods 10 extend into a mountain for a certain length, the parts of the anchor rods 10 extending out of the mountain are provided with enlarged parts, the parts of the anchor rods 10 extending out of the mountain are bound with reinforcement cages to form the reinforcement cages of the lower anchor beam 2, concrete is poured to form the reinforced concrete structure, the left supporting piece 3 and the right supporting piece 4 are positioned at the lower part of the lower anchor beam 2 and are respectively positioned at the left side and the right side of the lower anchor beam 2, the left support piece 3 and the right support piece 4 are provided with left support diagonal braces 5 on the left support piece 3, right support diagonal braces 6 on the right support piece 4, one end of the left support diagonal braces 5 is connected with the upper end of the left support piece 3, one end of the left support diagonal braces 5 is connected with the lower end of the lower anchor beam 2, one end of the right support diagonal braces 6 is connected with the upper end of the right support piece 4, one end of the right support diagonal braces 6 is connected with the lower end of the lower anchor beam 2, front support columns 7, rear support columns 8 and support diagonal beams 9 are arranged on the lower anchor beam 2, reinforcing cross beams 11 are arranged at the upper ends of the front support columns 7 and the rear support columns 8, the width of the reinforcing cross beams 11 is larger than the width of the bridge 1, the reinforcing cross beams 11 are in close contact with the bottom surface of the bridge 1 to support the bridge 1, the upper end of the support inclined beam 9 is respectively connected with the reinforcing cross beam 11 and the rear support column 8, the lower end of the support inclined beam 9 is respectively connected with the lower anchor beam 2 and the front support column 7, the upper reinforcing system comprises an upper anchor beam 12, a left pull rope 13 and a right pull rope 14, the upper anchor beam 12 is of a reinforced concrete structure, a plurality of anchor rods 10 are driven into the position of the upper anchor beam 12, the anchor rods 10 extend into a mountain for a certain length, the parts of the anchor rods 10 extending out of the mountain are provided with expansion parts, the parts of the anchor rods 10 extending out of the mountain are bound with reinforcement cages to form upper anchor beam 12 reinforcement cages, concrete is poured to form a reinforced concrete structure, the width of the upper anchor beam 12 is the same as the width of the reinforcing cross beam 11, the left pull rope 13 and the right pull rope 14 are respectively arranged on the left side and the right side of the bridge 1, the upper ends of the left pull rope 13 and the right pull rope 14 are anchored on the upper anchor beam 12 through reserved holes in the upper anchor beam 12, and the left pull rope 14 is anchored on the reserved holes in the upper beam 11 and the left pull rope 14 and the left pull rope is penetrated through the reserved holes in the reinforcing cross beam 11.
Preferably, the upper ends of the left cable 13 and the right cable 14 are anchoring fixing ends, the lower ends of the left cable 13 and the right cable 14 are anchoring tensioning ends, the left cable 13 and the right cable 14 can be prestressed and tensioned by using the prestress tensioning device by using the anchoring tensioning ends, so as to form a prestress reinforcing system, the parts of the upper ends of the left cable 13 and the right cable 14 penetrating through the upper anchor beam 12 are provided with anchoring platforms, the anchoring platforms are preferably backing plates, and the backing plates are provided with the anchoring fixing ends; the lower ends of the left inhaul cable 13 and the right inhaul cable 14 penetrate through the reinforcing cross beam 11, and are provided with tensioning platforms, wherein the tensioning platforms are preferably backing plates, and the backing plates are provided with anchoring tensioning ends;
preferably, the upper anchor beam 12 is provided with a preformed hole corresponding to the position where the left and right inhaul cables 13 and 14 pass through, and the preformed hole is provided in the following manner: after the binding of the reinforcement cage of the upper anchor beam 12 is finished, arranging plastic sleeves at positions of the upper anchor beam 12, which correspond to the positions of the left inhaul cable 13 and the right inhaul cable 14, and then pouring concrete, wherein the plastic sleeves are not removed, so that a preformed hole is formed; the plastic sleeve can be replaced by a steel threaded sleeve, and threads matched with the steel threaded sleeve are arranged on the left inhaul cable 13 and the right inhaul cable 14, so that fixation is realized, and disassembly is convenient.
Preferably, the front support column 7, the rear support column 8 and the supporting oblique beam 9 are all of steel structures, and are fixed on the upper end face of the lower anchor beam 2, the front support column 7, the rear support column 8 and the supporting oblique beam 9 form a truss supporting system, and the stress can be effectively shared by using the stress mode of the truss, so that the overall stress mode and the action mechanism of the structure are improved, and the overall stress performance of the reinforcing system is ensured.
When the device is used for construction, the mountain is required to be cleaned, broken stone is removed, grouting reinforcement treatment can be carried out if necessary, and after construction is finished, a protective net can be added in a corresponding construction protective area to avoid broken stone.
The above-described embodiments are only preferred embodiments of the present invention, and the scope of the present invention should not be construed as being limited to the specific forms set forth by the examples, but also includes equivalent technical means as will occur to those skilled in the art based on the inventive concept.
Claims (3)
1. The utility model provides a reinforcing apparatus of mountain area bridge, this reinforcing apparatus is used for mountain area small-span bridge, bridge construction is between two mountain bodies, its characterized in that: the reinforcing device comprises an upper reinforcing system and a lower reinforcing system, the lower reinforcing system comprises a lower anchor beam, a left supporting piece, a right supporting piece, a left supporting diagonal brace and a right supporting diagonal brace which are arranged at the lower part of the lower anchor beam, a front supporting column, a rear supporting column and a supporting diagonal beam which are arranged at the upper part of the lower anchor beam, the lower anchor beam is of a reinforced concrete structure, a plurality of anchor rods are driven into the position of the lower anchor beam, the anchor rods penetrate into a mountain body for a certain length, the parts of the anchor rods, which extend out of the mountain body, are provided with expansion parts, the parts of the anchor rods, which extend out of the mountain body, are bound with reinforcement cages to form a lower anchor beam reinforcement cage, concrete is poured, a reinforced concrete structure is formed, the left supporting piece and the right supporting piece are respectively positioned at the lower part of the lower anchor beam, one ends of the left supporting piece and the right supporting piece are respectively penetrated into the mountain body and anchored in the mountain body, the left support piece is provided with a left support diagonal bracing, the right support piece is provided with a right support diagonal bracing, one end of the left support diagonal bracing is connected with the upper end of the left support piece, one end of the left support diagonal bracing is connected with the lower end of the lower anchor beam, one end of the right support diagonal bracing is connected with the upper end of the right support piece, one end of the right support diagonal bracing is connected with the lower end of the lower anchor beam, the lower anchor beam is provided with a front support column, a rear support column and a support diagonal beam, the upper ends of the front support column and the rear support column are provided with a reinforcing cross beam, the width of the reinforcing cross beam is larger than that of the bridge, the reinforcing cross beam is tightly contacted with the bottom surface of the bridge so as to support the bridge, the upper ends of the support diagonal beams are respectively connected with the reinforcing cross beam and the rear support column, the lower ends of the support diagonal beams are respectively connected with the lower anchor beam and the front support column, the upper reinforcement system comprises an upper anchor beam, a left pull rope and a right pull rope, wherein the upper anchor beam is of a reinforced concrete structure, a plurality of anchor rods are driven into the position of the upper anchor beam, the anchor rods penetrate into a mountain body for a certain length, the portions of the anchor rods extending out of the mountain body are provided with expansion parts, the anchor rods extending out of the mountain body are bound with reinforcement cages to form upper anchor beam reinforcement cages, concrete is poured, the reinforced concrete structure is formed, the width of the upper anchor beam is the same as that of the reinforcement cross beam, the left pull rope and the right pull rope are respectively arranged on the left side and the right side of the bridge, the upper ends of the left pull rope and the right pull rope penetrate through preformed holes in the upper anchor beam, the lower ends of the left pull rope and the right pull rope penetrate through preformed holes in the reinforcement cross beam to be anchored on the reinforcement cross beam, the upper ends of the left pull rope and the right pull rope are anchored fixed ends, the lower ends of the left pull rope and the right pull rope are stretched ends of the reinforcement cross beam, and the left pull rope and the right pull rope are prestressed pull ropes by means of the prestressed tension system.
2. The mountain bridge reinforcing apparatus as claimed in claim 1, wherein: the upper anchor beam is provided with a preformed hole corresponding to the part penetrated by the left inhaul cable and the right inhaul cable, and the preformed hole is arranged in the following way: after binding of the upper anchor beam reinforcement cage is finished, a plastic sleeve is arranged at the position, corresponding to the left inhaul cable and the right inhaul cable, of the upper anchor beam, concrete is poured, and the plastic sleeve is not removed, so that a reserved hole is formed.
3. The mountain bridge reinforcing apparatus as claimed in claim 1, wherein: the front support column, the rear support column and the support oblique beam are all of steel structures and are fixed on the upper end face of the lower anchor beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110828181.7A CN113638324B (en) | 2021-07-18 | 2021-07-18 | Reinforcing apparatus of mountain bridge |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110828181.7A CN113638324B (en) | 2021-07-18 | 2021-07-18 | Reinforcing apparatus of mountain bridge |
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| Publication Number | Publication Date |
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| CN113638324A CN113638324A (en) | 2021-11-12 |
| CN113638324B true CN113638324B (en) | 2023-07-07 |
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Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110144811B (en) * | 2019-05-28 | 2020-12-22 | 杜东坡 | Unbalanced torsion-resistant and overturn-resistant structure of single-column pier of curved beam bridge and construction method of unbalanced torsion-resistant and overturn-resistant structure |
| CN110847055B (en) * | 2019-12-10 | 2021-03-23 | 中铁十二局集团有限公司 | Bridge pier of mountain-crossing highway bridge, construction method and mountain-crossing highway bridge |
| CN110761177B (en) * | 2019-12-19 | 2021-02-05 | 丁华丽 | Comprehensive water utilization system for bridge |
| CN211772914U (en) * | 2020-03-27 | 2020-10-27 | 中国建筑第七工程局有限公司 | Pre-buried box structure of 0# piece bracket of continuous beam |
| CN112609637B (en) * | 2020-12-24 | 2022-04-12 | 河南省水利第二工程局 | Prestressing force reinforced structure of aqueduct body |
| CN113005926A (en) * | 2021-04-01 | 2021-06-22 | 张培振 | Construction method of mountain area abrupt slope pier reinforcing device |
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