Municipal bridge reinforcing device

Abstract

The municipal bridge reinforcing device comprises a protective shell, a longitudinal beam protective plate and a bridge floor protective plate which are arranged on a bridge, the bridge comprises a bridge floor structure, a plurality of cross beams, a plurality of longitudinal beams and bearing columns, the cross beams and the longitudinal beams are arranged at the bottom of the bridge floor structure in a criss-cross mode, and the bearing columns are arranged at the intersection points of the cross beams and the longitudinal beams. The bearing column is detachably sleeved with a protection shell, the side face, corresponding to each longitudinal beam, of the protection shell is provided with first supporting devices in one-to-one correspondence, and the longitudinal beam protection plates are arranged on the lower end faces of the longitudinal beams in a supported mode through the first supporting devices. A bridge floor protection plate is arranged on the lower end face of the bridge floor structure and located between the adjacent longitudinal beams. The protection shell is arranged on the bearing column for reinforcement, the first supporting device and the second supporting device are arranged, the supporting area of the bearing column to the longitudinal beam is increased, the bridge floor protection plate is supported through the second supporting device, the supporting of the bearing column to the bridge floor is increased, and therefore the whole bridge can be reinforced.

Description

Technical Field

[0001] This utility model relates to the field of bridge reinforcement technology, specifically a municipal bridge reinforcement device. Background Technology

[0002] Bridge reinforcement involves taking specific measures to improve the load-bearing capacity and performance of bridge components and the entire structure. Municipal bridges, facing increasing traffic pressure and subjected to long-term vehicle loads and environmental erosion, are prone to problems such as cracks, concrete spalling, and decreased structural stiffness. Without timely reinforcement, the reduced load-bearing capacity of bridges can threaten traffic safety and even lead to collapses. Therefore, bridge reinforcement is necessary.

[0003] In the prior art, utility model patent with patent number CN202323559702.7 discloses a bridge reinforcement device, including a lifting mechanism preset in the lower part of the bridge body and a buckle covering the upper part of the bridge body. The buckle is composed of two symmetrical buckle one and buckle two. Connecting components are fixedly provided on both sides between buckle one and buckle two. A tie rod assembly connected to the bridge body is provided on one outer wall of buckle one and buckle two.

[0004] The bridge reinforcement device provided by the aforementioned patent, through its lifting mechanism and retaining rings, allows the retaining rings to be pushed upwards during reinforcement on the bridge structure, improving the fit between the reinforcement device and the bridge structure and achieving better bridge reinforcement performance. Simultaneously, tie rod assemblies are provided on both sides of the retaining rings to achieve reinforcement effects on large spans of the bridge, improving the quality of bridge reinforcement. However, this bridge reinforcement device only provides some reinforcement to the load-bearing columns of the bridge and does not effectively reinforce the bridge deck, requiring further improvement. Utility Model Content

[0005] The purpose of this utility model is to provide a municipal bridge reinforcement device, which aims to improve the problem that although the existing bridge reinforcement devices have a certain reinforcement effect on the load-bearing columns of the bridge, they have not effectively reinforced the bridge deck.

[0006] This utility model is implemented as follows: A municipal bridge reinforcement device includes a protective shell, longitudinal beam protective plates, and bridge deck protective plates installed on the bridge. The bridge includes a bridge deck structure, multiple horizontal beams and multiple longitudinal beams arranged crisscrossingly at the bottom of the bridge deck structure, and load-bearing columns installed at the intersections of the horizontal and longitudinal beams. The protective shell is detachably fitted onto the load-bearing columns. The protective shell has a corresponding first support device on the side of each longitudinal beam. The longitudinal beam protective plates are supported on the lower end face of the longitudinal beams by the first support devices. The bridge deck protective plates are installed on the lower end face of the bridge deck structure at the position between adjacent longitudinal beams.

[0007] Preferably, the protective shell includes a pair of semi-shell structures, which are symmetrically and detachably assembled to wrap around the load-bearing column.

[0008] Preferably, it also includes a number of second mounting bolts, and the closure of a pair of the half-shell structures is fastened together by the number of second mounting bolts; each of the lower ends of a pair of the half-shell structures is provided with a base, and a first mounting bolt is provided on the base, and the base is fixed to the ground by the first mounting bolt.

[0009] Preferably, it further includes a second support device, which includes a second support rod, both ends of which are provided with second rotating heads; a crossbar is provided on the side of two adjacent protective shells located under the same crossbeam, a third rotating seat is provided on the crossbar, and a second rotating seat is provided on the bottom end of the bridge deck protective plate on the same side as the crossbar; one end of the second support rod is rotatably mounted on the second rotating seat through the second rotating head, and the other end is rotatably mounted on the third rotating seat through the second rotating head.

[0010] Preferably, the crossbar includes a third mounting bolt; the crossbar is laterally arranged on the same side of two adjacent protective shells located under the same crossbeam, and both ends are fixedly installed by the third mounting bolt.

[0011] Preferably, the first support device includes a first support rod, and both ends of the first support rod are provided with first rotating heads; the side of the protective shell and the lower end face of the longitudinal beam protective plate on the same side are both provided with first rotating seats; one end of the first support rod is rotatably mounted on the first rotating seat on the side of the protective shell through the first rotating head, and the other end is rotatably mounted on the first rotating seat on the lower end face of the longitudinal beam protective plate through the first rotating head.

[0012] Preferably, the protective shell, longitudinal beam protective plate and bridge deck protective plate are made of stainless steel and are all welded together by several crisscrossing steel plates.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model strengthens the load-bearing column by setting a protective shell on the load-bearing column. A first support device and a second support device are set on the side of the load-bearing column. The first support device supports the longitudinal beam protective plate, increasing the support area of ​​the load-bearing column on the longitudinal beam. The second support device supports the bridge deck protective plate, increasing the support of the load-bearing column on the bridge deck. Thus, the bridge can be strengthened as a whole.

[0015] 2. This utility model features a detachable protective shell, which makes it convenient for construction workers to wrap and install the protective shell on the load-bearing column. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the bottom structure of the bridge deck structure of this utility model;

[0018] Figure 3 This is a top view of the structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the protective shell of this utility model;

[0020] Figure 5 This is a structural schematic diagram of the first support device of this utility model;

[0021] Figure 6 This is a structural schematic diagram of the second support device of this utility model.

[0022] In the diagram: 1. Bridge deck structure; 101. Crossbeam; 102. Longitudinal beam; 103. Load-bearing column; 2. Protective shell; 201. Semi-shell structure; 202. Base; 203. First mounting bolt; 204. Second mounting bolt; 3. Longitudinal beam protective plate; 4. Bridge deck protective plate; 5. First support device; 501. First support rod; 502. First rotating head; 503. First rotating seat; 6. Second support device; 601. Second support rod; 602. Second rotating head; 603. Second rotating seat; 604. Crossbar; 605. Third rotating seat; 606. Third mounting bolt. Detailed Implementation

[0023] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] The following description, in conjunction with the accompanying drawings and specific embodiments, provides further details:

[0025] Example 1

[0026] like Figures 1-5As shown, a municipal bridge reinforcement device is used for the overall reinforcement of a bridge. The bridge has a bridge deck structure 1, multiple horizontal beams 101 and multiple longitudinal beams 102 arranged in a crisscross pattern at the bottom of the bridge deck structure 1, and load-bearing columns 103 installed at the intersections of the horizontal beams 101 and longitudinal beams 102. The municipal bridge reinforcement device includes a protective shell 2, longitudinal beam protective plates 3, and a bridge deck protective plate 4. The protective shell 2, longitudinal beam protective plates 3, and bridge deck protective plates 4 are all made of stainless steel and are welded together from several crisscrossing steel plates. The protective shell 2, longitudinal beam protective plates 3, and bridge deck protective plates 4 are all welded together from steel plates in a crisscross pattern, and the contact surfaces with the bridge deck structure 1 are all ground smooth to ensure uniform stress distribution and prevent damage to the bridge deck structure 1. Each of the multiple load-bearing columns 103 is detachably fitted with a protective shell 2. By wrapping the load-bearing column 103 with the protective shell 2, the entire load-bearing column 103 can be protected to prevent it from collapsing due to long construction time or external impact. Each protective shell 2 has a corresponding first support device 5 on the side of each longitudinal beam 102. The longitudinal beam protective plate 3 is supported on the lower end face of the longitudinal beam 102 by the first support device 5. The first support device 5 includes a first support rod 501, and each end of the first support rod 501 is provided with a first rotating head 502. The side of the protective shell 2 and the lower end face of the longitudinal beam protective plate 3 on the same side are provided with a first rotating seat 503. One end of the first support rod 501 is rotatably mounted on the first rotating seat 503 on the side of the protective shell 2 through the first rotating head 502, and the other end is rotatably mounted on the first rotating seat 503 on the lower end face of the longitudinal beam protective plate 3 through the first rotating head 502. By providing a longitudinal beam protective plate 3 on the lower end face of the longitudinal beam 102, the longitudinal beam 102 can be supported, preventing local cracks from appearing due to excessive length. The longitudinal beam protective plate 3, abutting against the side of the protective shell 2 via the first support device 5, bears a portion of the weight of the longitudinal beam 102. The longitudinal beam protective plate 3 and the first support device 5 can expand the support area of ​​the load-bearing column 103 on the longitudinal beam 102. Furthermore, both ends of each longitudinal beam protective plate 3 are supported by a corresponding first support device 5, which can stably increase the load-bearing area of ​​the load-bearing column 103 on the crossbeam 101.

[0027] like Figures 1-3 and Figure 6As shown, a bridge deck protection plate 4 is installed on the lower end face of the bridge deck structure 1, located between adjacent longitudinal beams 102. The protective shell 2 includes a pair of semi-shell structures 201, which are symmetrically and detachably assembled to wrap around the load-bearing column 103. It also includes several second mounting bolts 204, which fasten the assembled part of the pair of semi-shell structures 201 together. Each of the lower ends of the pair of semi-shell structures 201 is provided with a base 202, and a first mounting bolt 203 is provided on the base 202. The base 202 is fixed to the ground by the first mounting bolt 203. The protective shell 2, with its two symmetrically arranged semi-shell structures 201, can easily enclose and mount the protective shell 2 onto the load-bearing column 103. It also includes a second support device 6, which comprises a second support rod 601, with a second rotating head 602 at both ends. A crossbar 604 is provided on the side of two adjacent protective shells 2 located under the same crossbeam 101, and a third rotating seat 605 is provided on the crossbar 604. A second rotating seat 603 is provided on the bottom end of the bridge deck protective plate 4 on the same side as the crossbar 604. One end of the second support rod 601 is rotatably mounted on the second rotating seat 603 via the second rotating head 602, and the other end is rotatably mounted on the third rotating seat 605 via the second rotating head 602. The crossbar 604 includes a third mounting bolt 606. The crossbar 604 is laterally arranged on the same side of two adjacent protective shells 2 located under the same crossbeam 101, and both ends are fixedly mounted by the third mounting bolt 606. By installing bridge deck protection plates 4, a large rectangular area of ​​unsupported space at the lower end of the bridge deck, formed by the intersection of crossbeams and longitudinal beams, can be supported, preventing this area from collapsing over time. Crossbars 604 can also be installed laterally on the same side of all protective shells 2 located under the same crossbeam 101, with third rotating seats 605 positioned between adjacent protective shells 2 on the crossbars 604. This facilitates use on bridges where multiple bridge deck protection plates 4 need to be installed laterally on the lower end of the bridge deck structure 1.

[0028] Example 2

[0029] like Figures 1-5As shown, a municipal bridge reinforcement device is used for the overall reinforcement of a bridge. The bridge has a bridge deck structure 1, multiple transverse beams 101 and multiple longitudinal beams 102 arranged in a crisscross pattern at the bottom of the bridge deck structure 1, and load-bearing columns 103 installed at the intersections of the transverse beams 101 and longitudinal beams 102. The municipal bridge reinforcement device includes a protective shell 2, longitudinal beam protective plates 3, and a bridge deck protective plate 4; the protective shell 2, longitudinal beam protective plates 3, and bridge deck protective plates 4 are made of stainless steel and are all welded together from several crisscrossing steel plates. Each of the multiple load-bearing columns 103 is detachably fitted with a protective shell 2. Each protective shell 2 has a corresponding first support device 5 on the side of each longitudinal beam 102. The longitudinal beam protective plate 3 is supported on the lower end face of the longitudinal beam 102 by the first support device 5. The first support device 5 includes a first support rod 501, and each end of the first support rod 501 is provided with a first rotating head 502. The side of the protective shell 2 and the lower end face of the longitudinal beam protective plate 3 on the same side are both welded or screwed with a first rotating seat 503. One end of the first support rod 501 is rotatably mounted on the first rotating seat 503 on the side of the protective shell 2 by the first rotating head 502, and the other end is rotatably mounted on the first rotating seat 503 on the lower end face of the longitudinal beam protective plate 3 by the first rotating head 502. The first support device 5 is set at the angle between the longitudinal beam protective plate 3 and the protective shell 2 to achieve support. By rotating the two ends of the first support device 5 and the first rotating seat 503, it is convenient to weld or fix one end with screws during installation, and then rotate the other end to the position to be installed for welding or screw fixing.

[0030] like Figures 1-3 and Figure 6As shown, a bridge deck protection plate 4 is installed on the lower end face of the bridge deck structure 1, located between adjacent longitudinal beams 102. The protective shell 2 includes a pair of semi-shell structures 201, which are symmetrically and detachably assembled to wrap around the load-bearing column 103. It also includes several second mounting bolts 204, which fasten the assembled part of the pair of semi-shell structures 201 together. Each of the lower ends of the pair of semi-shell structures 201 is provided with a base 202, and a first mounting bolt 203 is provided on the base 202. The base 202 is fixed to the ground by the first mounting bolt 203. The system also includes a second support device 6, which comprises a second support rod 601, with a second rotating head 602 at both ends. A crossbar 604 is provided on the side of two adjacent protective shells 2 located under the same crossbeam 101, and a third rotating seat 605 is provided on the crossbar 604. A second rotating seat 603 is welded or screwed onto the bottom end of the bridge deck protective plate 4 on the same side as the crossbar 604. One end of the second support rod 601 is rotatably mounted on the second rotating seat 603 via the second rotating head 602, and the other end is rotatably mounted on the third rotating seat 605 via the second rotating head 602. The crossbar 604 includes a third mounting bolt 606. The crossbar 604 is laterally positioned on the same side of two adjacent protective shells 2 located under the same crossbeam 101, and both ends are fixedly mounted by the third mounting bolt 606.

[0031] The working principle of this utility model is as follows: First, a pair of half-shell structures 201 of the protective shell 2 are wrapped and installed on the load-bearing column 103 using the second mounting bolts 204. Then, the longitudinal beam protective plate 3 is abutted against the lower end face of the crossbeam 101 using external engineering equipment, and is set at the angle between the longitudinal beam protective plate 3 and the protective shell 2 by the first support device 5, thereby achieving fixed support for the longitudinal beam protective plate 3. Both ends of each longitudinal beam protective plate 3 are supported by the corresponding first support device 5, which can stably increase the load-bearing area of ​​the load-bearing column 103 on the crossbeam 101. Then, the crossbar 604 can be horizontally set on the same side of two adjacent protective shells 2 located under the same crossbeam 101, and the two protective shells 2 limit the weight of the two ends of the crossbar 604. Then, the end of the second support rod 601 away from the crossbar 604 can be rotated to the lower end face of the bridge deck protective plate 4 for fixation.

[0032] In summary, this utility model strengthens the load-bearing column 103 by installing a protective shell 2 on the load-bearing column 103. A first support device 5 and a second support device 6 are installed on the side of the load-bearing column 103. The first support device 5 supports the longitudinal beam protective plate 3, increasing the support area of ​​the load-bearing column 103 on the longitudinal beam 102. The second support device 6 supports the bridge deck protective plate 4, increasing the support of the load-bearing column 103 on the bridge deck. Thus, the bridge can be strengthened as a whole. The detachable protective shell 2 makes it convenient for construction workers to wrap the protective shell 2 around the load-bearing column 103.

[0033] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A municipal bridge reinforcement device, characterized in that, The bridge includes a protective shell (2), a longitudinal beam protective plate (3), and a bridge deck protective plate (4) installed on the bridge. The bridge includes a bridge deck structure (1), multiple crossbeams (101) and multiple longitudinal beams (102) arranged in a crisscross pattern at the bottom of the bridge deck structure (1), and load-bearing columns (103) installed at the intersection points of the crossbeams (101) and the longitudinal beams (102). The protective shell (2) is detachably fitted on the load-bearing column (103). The protective shell (2) is provided with a first support device (5) corresponding to the side of each longitudinal beam (102). The longitudinal beam protective plate (3) is supported by the first support device (5) and installed on the lower end face of the longitudinal beam (102). The bridge deck protective plate (4) is installed on the lower end face of the bridge deck structure (1) between adjacent longitudinal beams (102).

2. The municipal bridge reinforcement device according to claim 1, characterized in that, The protective shell (2) includes a pair of semi-shell structures (201), which are symmetrically and detachably wrapped around the load-bearing column (103).

3. The municipal bridge reinforcement device according to claim 2, characterized in that, In addition, it includes several second mounting bolts (204), and the closing part of the pair of half-shell structures (201) is fastened together by several second mounting bolts (204); the lower end of each pair of half-shell structures (201) is provided with a base (202), and the base (202) is provided with a first mounting bolt (203), and the base (202) is fixed on the ground by the first mounting bolt (203).

4. A municipal bridge reinforcement device according to claim 2, characterized in that, In addition, a second support device (6) is included, which includes a second support rod (601). Both ends of the second support rod (601) are provided with second rotating heads (602). A crossbar (604) is provided on the side of two adjacent protective shells (2) under the same crossbeam (101). A third rotating seat (605) is provided on the crossbar (604). A second rotating seat (603) is provided on the bottom end of the bridge deck protective plate (4) on the same side as the crossbar (604). One end of the second support rod (601) is rotatably mounted on the second rotating seat (603) through the second rotating head (602), and the other end is rotatably mounted on the third rotating seat (605) through the second rotating head (602).

5. A municipal bridge reinforcement device according to claim 4, characterized in that, The crossbar (604) includes a third mounting bolt (606); the crossbar (604) is arranged laterally on the same side of two adjacent protective shells (2) located under the same crossbeam (101), and both ends are fixedly installed by the third mounting bolt (606).

6. A municipal bridge reinforcement device according to claim 1, characterized in that, The first support device (5) includes a first support rod (501), and both ends of the first support rod (501) are provided with first rotating heads (502); the side of the protective shell (2) and the lower end of the longitudinal beam protective plate (3) on the same side are provided with first rotating seats (503); one end of the first support rod (501) is rotatably mounted on the first rotating seat (503) on the side of the protective shell (2) through the first rotating head (502), and the other end is rotatably mounted on the first rotating seat (503) on the lower end of the longitudinal beam protective plate (3) through the first rotating head (502).

7. A municipal bridge reinforcement device according to claim 1, characterized in that, The protective shell (2), the longitudinal beam protective plate (3) and the bridge deck protective plate (4) are made of stainless steel and are all welded together by several intersecting steel plates.

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