阅读说明：本技术 一种山区桥梁的加固装置 (Reinforcing apparatus of mountain area bridge ) 是由 翟保尊 仝蓓蓓 张孝彦 史龙飞 贾磊 沈艳河 张宏祥 王瑨 于 2021-07-18 设计创作，主要内容包括：本发明提供一种山区桥梁的加固装置,通过设置上加固体系和下加固体系,对桥梁进行上下加固,上下加固体系中均设置锚梁,利用锚梁提供上下的支撑加固,继而提高桥梁的整体加固和受力性能,利用锚杆将上锚梁和下锚梁锚固在山体中,从而实现其与山体的牢固连接,利用上下拉索形成预应力加固体系,进一步提高加固效果。(The invention provides a reinforcing device for a bridge in a mountainous area, which is characterized in that an upper reinforcing system and a lower reinforcing system are arranged to reinforce the bridge up and down, 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, so that the overall reinforcement and stress performance of the bridge are improved, the upper anchor beams and the lower anchor beams are anchored in a mountain body by anchor rods, the firm connection between the upper anchor beams and the mountain body is realized, a prestress reinforcing system is formed by upper and lower inhaul cables, and the reinforcing effect is further improved.)

1. The utility model provides a reinforcing apparatus of mountain area bridge, this reinforcing apparatus is used for mountain area small-span bridge, the bridge is built between two massifs which characterized in that: the reinforcing device comprises an upper reinforcing system and a lower reinforcing system, wherein the lower reinforcing system comprises a lower anchor beam, a left supporting piece, a right supporting piece, a left supporting inclined strut, a right supporting inclined strut, a front supporting column, a rear supporting column and a supporting inclined beam, the left supporting piece, the right supporting inclined strut and the left supporting inclined strut are arranged at the lower part of the lower anchor beam, the front supporting column, the rear supporting column and the supporting inclined beam 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 lower anchor beam, the anchor rods penetrate into the mountain body for a certain length, the parts of the anchor rods, which extend out of the mountain body, are provided with expanding parts, reinforcement cages are bound on the parts of the anchor rods, which extend out of the mountain body, concrete is poured to form the reinforced concrete structure, the left supporting piece and the right supporting piece are both positioned at the lower part of the lower anchor beam and are respectively positioned at the left side and the right side of the lower anchor beam, one end of the left supporting piece and the right supporting piece both penetrate into the mountain body and are anchored in the mountain body, be provided with left branch strut on the left side support piece, be provided with right branch strut on the support piece of the right side, the one end of left branch strut with the upper end of left branch strut is connected, one end with the lower extreme of anchor beam is connected down, the one end of right branch strut with the upper end of right branch strut is connected, one end with the lower extreme of anchor beam is connected down, be provided with preceding support column, back support column and support sloping down on the anchor beam the upper end of preceding support column, back support column is provided with the reinforcement crossbeam, the width of reinforcement crossbeam is greater than the width of bridge, reinforcement crossbeam with bridge bottom surface in close contact with to support the bridge, the upper end of supporting the sloping respectively with reinforcement crossbeam and back support column are connected, the lower extreme of supporting the sloping respectively with the anchor beam is connected with preceding support column down, go up the reinforcement system including anchor beam, upper anchor beam, The reinforced concrete structure comprises a left cable and a right cable, 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 the mountain body for a certain length, the parts of the anchor rods, which extend out of the mountain body, are provided with expansion parts, reinforcement cages are bound on the parts of the anchor rods, which extend out of the mountain body, so as to form the reinforcement cages of the upper anchor beam, concrete is poured, so as to form the reinforced concrete structure, the width of the upper anchor beam is the same as that of the reinforcing cross beam, the left cable and the right cable are respectively arranged on the left side and the right side of the bridge, the upper ends of the left cable and the right cable penetrate through reserved holes in the upper anchor beam and are anchored on the upper anchor beam, and the lower ends of the left cable and the right cable penetrate through reserved holes in the reinforcing cross beam and are anchored on the reinforcing cross beam.

2. The reinforcing apparatus for a bridge in a mountainous area as claimed in claim 1, wherein: the upper ends of the left cable and the right cable are the anchoring fixed ends, the lower ends of the left cable and the right cable are anchoring stretching ends, and the left cable and the right cable can be subjected to prestress stretching by utilizing the anchoring stretching ends and a prestress stretching device, so that a prestress reinforcing system is formed.

3. The reinforcing apparatus for a bridge in a mountainous area as claimed in claim 2, wherein: go up the anchor beam and correspond the position that left cable, right cable passed sets up the preformed hole, the mode of setting up of preformed hole is: after the binding of the upper anchor beam steel reinforcement cage is finished, plastic sleeves are arranged at the positions, corresponding to the left guy cable and the right guy cable, of the upper anchor beam, concrete is poured, and the plastic sleeves are not detached, so that a preformed hole is formed.

4. The reinforcing apparatus for a bridge in a mountainous area as claimed in claim 1, wherein: the front supporting column, the rear supporting column and the supporting oblique beam are all steel structures and are fixed on the upper end face of the lower anchor beam.

The technical field is as follows: the invention relates to the field of bridge engineering, in particular to a reinforcing device for a mountainous bridge.

Background art: the bridge is built in a mountain area, particularly a small-span bridge, generally in a form that a beam section is fixedly connected between two mountain bodies and is fixedly connected in the mountain bodies, the bridge form is convenient to construct and low in engineering cost, but the bridge beam section is embedded into the mountain bodies and is a main stress bearing part, and the part is easy to damage in the case of a bridge structure with long service life, so that the structure safety is influenced. Some existing reinforcements are mostly used for local grouting anchoring and the like or local steel beam anchoring and supporting, and due to the fact that the stress time of a mountain body at a bridge part is long, 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 reinforcing effect is general.

The invention content is as follows: the invention provides a reinforcing device for a mountainous bridge, aiming at the problems in the prior art.

The invention provides a reinforcing device for a bridge in a mountainous area, which is used for a small-span bridge in the mountainous area, wherein the bridge is built between two mountains, and the reinforcing device is characterized in that: the reinforcing device comprises an upper reinforcing system and a lower reinforcing system, wherein the lower reinforcing system comprises a lower anchor beam, a left supporting piece, a right supporting piece, a left supporting inclined strut, a right supporting inclined strut, a front supporting column, a rear supporting column and a supporting inclined beam, the left supporting piece, the right supporting inclined strut and the left supporting inclined strut are arranged at the lower part of the lower anchor beam, the front supporting column, the rear supporting column and the supporting inclined beam 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 lower anchor beam, the anchor rods penetrate into the mountain body for a certain length, the parts of the anchor rods, which extend out of the mountain body, are provided with expanding parts, reinforcement cages are bound on the parts of the anchor rods, which extend out of the mountain body, concrete is poured to form the reinforced concrete structure, the left supporting piece and the right supporting piece are both positioned at the lower part of the lower anchor beam and are respectively positioned at the left side and the right side of the lower anchor beam, one end of the left supporting piece and the right supporting piece both penetrate into the mountain body and are anchored in the mountain body, be provided with left branch strut on the left side support piece, be provided with right branch strut on the support piece of the right side, the one end of left branch strut with the upper end of left branch strut is connected, one end with the lower extreme of anchor beam is connected down, the one end of right branch strut with the upper end of right branch strut is connected, one end with the lower extreme of anchor beam is connected down, be provided with preceding support column, back support column and support sloping down on the anchor beam the upper end of preceding support column, back support column is provided with the reinforcement crossbeam, the width of reinforcement crossbeam is greater than the width of bridge, reinforcement crossbeam with bridge bottom surface in close contact with to support the bridge, the upper end of supporting the sloping respectively with reinforcement crossbeam and back support column are connected, the lower extreme of supporting the sloping respectively with the anchor beam is connected with preceding support column down, go up the reinforcement system including anchor beam, upper anchor beam, The reinforced concrete structure comprises a left cable and a right cable, 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 the mountain body for a certain length, the parts of the anchor rods, which extend out of the mountain body, are provided with expansion parts, reinforcement cages are bound on the parts of the anchor rods, which extend out of the mountain body, so as to form the reinforcement cages of the upper anchor beam, concrete is poured, so as to form the reinforced concrete structure, the width of the upper anchor beam is the same as that of the reinforcing cross beam, the left cable and the right cable are respectively arranged on the left side and the right side of the bridge, the upper ends of the left cable and the right cable penetrate through reserved holes in the upper anchor beam and are anchored on the upper anchor beam, and the lower ends of the left cable and the right cable penetrate through reserved holes in the reinforcing cross beam and are anchored on the reinforcing cross beam.

Preferably, the upper ends of the left cable and the right cable are fixed anchoring ends, the lower ends of the left cable and the right cable are stretching anchoring ends, and the left cable and the right cable can be stretched in a prestressed manner by using the stretching anchoring ends and a prestressed stretching device, so that a prestressed reinforcement system is formed.

Preferably, the upper anchor beam is provided with a preformed hole corresponding to the part through which the left guy cable and the right guy cable pass, and the preformed hole is arranged in the following mode: after the binding of the upper anchor beam steel reinforcement cage is finished, plastic sleeves are arranged at the positions, corresponding to the left guy cable and the right guy cable, of the upper anchor beam, concrete is poured, and the plastic sleeves are not detached, so that a preformed hole is formed.

Preferably, the front support column, the rear support column and the support oblique beam are all steel structures and are fixed on the upper end surface of the lower anchor beam.

The working principle of the invention is as follows:

the reinforcement systems are respectively arranged at two ends of a bridge in a mountain area and are divided into an upper reinforcement system and a lower reinforcement system which are arranged at the upper part and the lower part of the bridge, so that the influence on a mountain body at the bridge part can be reduced when the upper reinforcement system and the lower reinforcement system are arranged, and the structural safety of the bridge is ensured;

when the upper and lower reinforcing systems are constructed, the upper and lower anchor beams are built, the integral connection performance between the upper and lower anchor beams and the mountain is improved through the anchor rods and the cast-in-place structure, the stress of the bridge is converted into the mountain through the conversion of the stress system, and the integral stress performance of the bridge is improved;

the lower anchor beam is used as a supporting component, the truss reinforcing system is arranged on the lower anchor beam, so that the support for the lower part of the bridge is improved, 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 for the lower anchor beam is improved;

go up the anchor beam with form the prestressing force reinforcing system through consolidating the crossbeam between the bridge, utilize about the stretch-draw setting of cable, improved the atress performance of bridge, utilize the cooperation of reinforcing system from top to bottom, improved the whole atress performance of bridge, the structure is convenient for be under construction, has important effect to improving the atress of mountain area bridge.

The invention has the advantages that:

according to the reinforcing device for the mountainous bridge, 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 reinforcement and stress performance of the bridge are improved, the anchor rods are used for anchoring the upper anchor beams and the lower anchor beams in the mountains, so that the upper anchor beams and the lower anchor beams are firmly connected with the mountains, the upper bracing cable and the lower bracing cable are used for forming the prestress reinforcing system, and the reinforcing effect is further improved.

Description of the drawings:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of a lower reinforcement system configuration;

FIG. 3 is a schematic view of the arrangement of the lower anchor beam and the supporting column;

FIG. 4 is a schematic view of the upper reinforcement system setup;

fig. 5 is a schematic view of the arrangement of the lower anchor beam and the left and right supporting members.

The specific implementation mode is as follows: the structure defined in the present invention will be explained in detail with reference to the drawings attached to the specification.

The invention provides a reinforcing device of a bridge 1 in a mountainous area, which is used for the bridge 1 with small span in the mountainous area, wherein the bridge 1 is built between two mountains, and the reinforcing device is characterized in that: the reinforcing device comprises an upper reinforcing system and a lower reinforcing system, wherein the lower reinforcing system comprises a lower anchor beam 2, a left support member 3, a right support member 4, a left support inclined strut 5 and a right support inclined strut 6 which are arranged at the lower part of the lower anchor beam 2, a front support column 7, a rear support column 8 and a support inclined beam 9 which are arranged at the upper part of the lower anchor beam 2, the lower anchor beam 2 is of a reinforced concrete structure, a plurality of anchor rods 10 are driven into the lower anchor beam 2, the anchor rods 10 penetrate into the mountain body for a certain length, the parts of the anchor rods 10, which extend out of the mountain body, are provided with expansion parts, reinforcement cages are bound on the parts of the anchor rods 10, which extend out of the mountain body, so that the reinforcement cages of the lower anchor beam 2 are formed, concrete is poured, a reinforced concrete structure is formed, the left support member 3 and the right support member 4 are both 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, one end of each of the left support member 3 and the right support member 4 extends into the mountain body and is anchored in the mountain body, the left support member 3 is provided with a left support inclined strut 5, the right support member 4 is provided with a right support inclined strut 6, one end of the left support inclined strut 5 is connected with the upper end of the left support member 3, the other end of the left support inclined strut is connected with the lower end of the lower anchor beam 2, one end of the right support inclined strut 6 is connected with the upper end of the right support member 4, the other end of the right support inclined strut is connected with the lower end of the lower anchor beam 2, the lower anchor beam 2 is provided with a front support column 7, a rear support column 8 and a support inclined beam 9, the upper ends of the front support column 7 and the rear support column 8 are provided with a reinforcing cross beam 11, the width of the reinforcing cross beam 11 is greater than that of the bridge 1, the reinforcing cross beam 11 is in close contact with the bottom surface of the bridge 1 to support the bridge 1, and 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 supporting oblique beam 9 is respectively connected with the lower anchor beam 2 and the front supporting column 7, the upper reinforcing system comprises an upper anchor beam 12, a left guy cable 13 and a right guy cable 14, the upper anchor beam 12 is of a reinforced concrete structure, a plurality of anchor rods 10 are driven into the upper anchor beam 12, the anchor rods 10 penetrate into the mountain body for a certain length, the parts of the anchor rods 10, which extend out of the mountain body, are provided with expanding parts, reinforcement cages are bound on the parts of the anchor rods 10, which extend out of the mountain body, so as to form an upper anchor beam 12 reinforcement cage, then concrete is poured, so as to form the reinforced concrete structure, the width of the upper anchor beam 12 is the same as that of the reinforcing cross beam 11, the left guy cable 13 and the right guy cable 14 are respectively arranged on the left side and the right side of the bridge 1, the upper ends of the left guy cable 13 and the right guy cable 14 are both anchored on the upper anchor beam 12 through a reserved hole on the upper anchor beam 12, the lower ends of the left guy cable 13 and the right guy cable 14 penetrate through a preformed hole in the reinforcing cross beam 11 and are anchored on the reinforcing cross beam 11.

Preferably, the upper ends of the left cable 13 and the right cable 14 are fixed anchoring ends, the lower ends of the left cable 13 and the right cable 14 are stretching anchoring ends, the stretching anchoring ends are used for pre-stressing the left cable 13 and the right cable 14 by using a pre-stressing device, so as to form a pre-stressing reinforcement system, the upper ends of the left cable 13 and the right cable 14 passing through the upper anchor beam 12 are provided with anchoring platforms, the anchoring platforms are preferably base plates, and the base plates are provided with fixed anchoring ends; the lower ends of the left guy cable 13 and the right guy cable 14 penetrate through the reinforcing cross beam 11, and a tensioning platform is arranged, preferably a cushion plate, and an anchoring tensioning end is arranged on the cushion plate;

preferably, the upper anchor beam 12 is provided with a preformed hole corresponding to the part through which the left cable 13 and the right cable 14 pass, and the preformed hole is arranged in a manner that: after the reinforcement cage of the upper anchor beam 12 is bound, plastic sleeves are arranged at the positions, corresponding to the left guy cable 13 and the right guy cable 14, of the upper anchor beam 12, and concrete is poured, wherein the plastic sleeves are not detached, so that a reserved 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 guy cable 13 and the right guy cable 14, so that fixation is realized, and the steel threaded sleeve is convenient to detach.

Preferably, the front support column 7, the rear support column 8 and the support oblique beam 9 are all steel structures and fixed on the upper end face of the lower anchor beam 2, the front support column 7, the rear support column 8 and the support oblique beam 9 form a truss support system, the stress mode of a truss is utilized, the stress can be effectively shared, the overall stress mode and action mechanism of the structure are improved, and the overall stress performance of the reinforcing system is guaranteed.

When the device is constructed, a mountain body needs to be cleaned, broken stones are removed, grouting reinforcement can be performed if necessary, and after construction is finished, a protective net can be added in a corresponding construction protection area to avoid broken stones.

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 in the examples, but also includes equivalent technical means which can be conceived by those skilled in the art from the present inventive concept.