Bridge maintenance road

Abstract

The utility model relates to the technical field of bridge construction, in particular to a bridge maintenance road. Comprising a base assembly installed on a bridge floor on the outer side of a steel bridge edge anti-collision guardrail; the guardrail assembly is detachably installed on the side, away from the anti-collision guardrail, of the base assembly, the guardrail assembly is composed of stand columns evenly distributed in the longitudinal direction of the steel bridge, middle stand columns between the adjacent stand columns and cross rods connecting the stand columns and the middle stand columns, and the adjacent guardrail assemblies form a whole through connecting assemblies. Due to the detachable design of the guardrail assemblies and the base assembly and the fact that a pair of adjacent guardrail assemblies are connected into a whole through the connecting assemblies, in the construction process, the construction efficiency is improved, the construction period is shortened, and the construction cost is reduced; in addition, only the damaged guardrail assembly needs to be dismantled and replaced, the guardrail assembly of the whole bridge overhaul road does not need to be dismantled in a large scale, and the maintenance cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to bridge construction technical field, in particular to a bridge maintenance way. BACKGROUND

[0002] Bridge is a kind of large-scale building crossing obstacle (such as river, valley, road etc.), and plays extremely important role in transportation, water conservancy, energy etc., after bridge is completed and is put into operation, to guarantee its safety, regular maintenance work is indispensable.Currently common maintenance means is to build bridge maintenance passage, and protective guardrail is arranged on maintenance passage, and construction personnel carry out bridge maintenance operation by means of bridge maintenance passage, and in this process, guardrail not only provides security guarantee for the operation of construction personnel, but also facilitates the suspension of safety belt hook, reduces security risk.

[0003] In some large bridge engineering, if the installation process of maintenance passage guardrail is complex, time-consuming and labor-consuming, the construction cycle will be greatly prolonged, and the construction cost will be increased, for example, in some bridge projects using traditional welding mode to connect guardrail components, professional welding equipment and technical personnel are needed for on-site welding operation, and welding quality is greatly influenced by environmental factors, such as in windy, humid weather conditions, it is difficult to guarantee the welding quality, and the inspection and repair work after welding is also relatively cumbersome.When maintenance passage guardrail needs to be repaired or replaced, if the disassembly process is difficult, it may be necessary to destroy the surrounding structure on a large scale to remove the damaged guardrail components, which not only increases the maintenance cost, but also may cause potential damage to the main structure of bridge. CONTENT OF THE UTILITY MODEL

[0004] In order to overcome the above technical problems of prior art, the utility model provides a kind of bridge maintenance way, solve the technical problems such as the installation process of maintenance passage guardrail is complex, construction cycle is long, construction cost is high.

[0005] In order to realize the above-mentioned purpose, the utility model is realized by the following technical scheme:

[0006] A kind of bridge maintenance way, for being set in the outer side of steel bridge side crash barrier, including: base assembly, the base assembly is installed on the bridge deck outside the side crash barrier of steel bridge, guardrail assembly, the guardrail assembly is detachably installed in the side of base assembly away from side crash barrier, the guardrail assembly includes: a group of stand column, a group of the stand column is evenly spaced along the longitudinal direction of steel bridge, and middle stand column is arranged between two adjacent stand columns, a group of crossbars is arranged between adjacent stand column and middle stand column, a group of the crossbars is evenly spaced along the axial direction of stand column, and the two ends of the crossbar are connected with stand column and middle stand column respectively, and connecting assembly is arranged between two adjacent guardrail assemblies, and the connecting assembly is used to connect two adjacent guardrail assemblies into one.

[0007] Based on the above structure, the principle of the bridge maintenance road is that: first, the base assembly is installed on the bridge deck outside the side crash barrier of the steel bridge, then the prefabricated guardrail assembly is installed on the base assembly away from the side crash barrier, the vertical columns on two adjacent pairs of guardrail assemblies are correspondingly arranged, then the corresponding pair of vertical columns are connected through the connecting assembly to complete the connection of the adjacent pair of guardrail assemblies; by prefabricating the guardrail assembly, the installation time on site is greatly shortened, the construction period is shortened, and the construction cost is reduced; by connecting the adjacent pair of guardrail assemblies into one through the connecting assembly, the overall stability of the protection device on the long bridge deck is improved, and when the guardrail assembly is damaged, the connecting assembly is removed, and the damaged guardrail assembly is removed from the base assembly, so that the damaged guardrail assembly can be replaced without the need to remove and rebuild the entire bridge maintenance road guardrail assembly, thereby reducing the maintenance cost and difficulty.

[0008] Further, the connecting assembly of the bridge maintenance road in the application comprises: a pair of connecting pipes, a pair of the connecting pipes are coaxially installed on the adjacent pair of guardrail assemblies; a butt joint sleeve pipe, the butt joint sleeve pipe is arranged at the connection of the pair of connecting pipes, and the butt joint sleeve pipe is used to connect the pair of connecting pipes. As a preferred scheme of the application, the connecting assembly of the bridge maintenance road in the application is used to connect the adjacent pair of guardrail assemblies into one, thereby enhancing the integrity of the guardrail assembly; the combination design of the butt joint sleeve pipe and the connecting pipe simplifies the connection process of the adjacent guardrail assemblies, further improves the installation efficiency of the guardrail assembly, shortens the construction period, and reduces the construction cost.

[0009] Further, the base assembly of the bridge maintenance road in the application comprises: a group of support frames and a road plate, the group of support frames are arranged on the bridge deck outside the side crash barrier of the steel bridge along the longitudinal direction of the steel bridge, a group of connecting beams are arranged between the adjacent pair of support frames, the group of connecting beams are arranged along the transverse direction of the steel bridge, the two ends of the connecting beam are connected with the adjacent pair of support frames, respectively, the road plate is arranged on the support frame and the road plate, and the road plate is arranged along the longitudinal direction of the steel bridge. As a preferred scheme of the application, the support frame, the road plate, and the connecting beam form a stable bearing system, which can maintain good stability when bearing the load of the construction personnel and the construction load, and a group of connecting beams connect the support frames into one, thereby reducing the deformation and displacement possibility of the single support frame when being stressed.

[0010] Further, the bridge maintenance passage provided by the application is characterized in that the support frame is in a "U" shape, and two ends of the support frame are connected with the bridge deck of the steel bridge respectively. As a preferred solution, the bridge maintenance passage provided by the application is characterized in that the support frame is in a "U" shape, so that an overhead structure is formed between the base assembly and the steel bridge. This design facilitates the drainage of water between the base assembly and the steel bridge, prevents corrosion of the position between the base assembly and the steel bridge caused by long-term water accumulation, ensures that the base assembly and the steel bridge are kept dry, effectively prolongs the service life, and at the same time, the overhead structure forms an accessible space, which facilitates the inspection of the connection between the base assembly and the steel bridge by maintenance personnel.

[0011] Further, the bridge maintenance passage provided by the application is characterized in that the base assembly is provided with a plurality of sockets corresponding to a plurality of columns, and the sockets are used to accommodate the columns. As a preferred solution, the bridge maintenance passage provided by the application is characterized in that the columns are inserted into the sockets through the installation mode of the sockets, so that the guardrail assembly can be quickly installed on the base assembly, the installation efficiency is significantly improved, the construction period is shortened, and the construction cost is reduced.

[0012] Further, the bridge maintenance passage provided by the application is characterized in that the guardrail assembly is provided with a wind-resistant stabilizing assembly, the wind-resistant stabilizing assembly includes a horizontal support rod, the horizontal support rod is installed at the upper end of the column, the setting direction of the horizontal support rod is perpendicular to the setting direction of the crossbar, a support inclined rod is arranged on the side of the column away from the edge crash barrier, two ends of the support inclined rod are connected with the horizontal support rod and the column respectively, and a wind-resistant plate is arranged on the horizontal support rod and the support inclined rod, and the wind-resistant plate is arranged in a longitudinal direction along the steel bridge. As a preferred solution, the bridge maintenance passage provided by the application is characterized in that the wind-resistant stabilizing assembly is used to improve the wind-resistant capacity of the guardrail assembly, the horizontal support rod, the support inclined rod and the wind-resistant plate cooperate with each other to form a stable wind-resistant structure system, under the action of strong wind, the wind-resistant plate first bears the impact force of the wind, transmits the wind load to the horizontal support rod and the support inclined rod, then transmits the force to the column through the support inclined rod, and finally disperses to the entire guardrail assembly and the steel bridge.

[0013] Further, the bridge maintenance path provided by the application is characterized in that the outer walls of the guardrail assembly and the wind-resistant stabilizing assembly are coated with a protective layer, and the protective layer comprises a primer layer, a connecting layer and a topcoat layer, which are sequentially arranged from inside to outside.

[0014] The above technical solution can achieve the following beneficial effects:

[0015] The bridge maintenance path provided by the application is characterized in that the guardrail assembly and the base assembly are detachably designed, and the adjacent pair of guardrail assemblies are connected into one through the connecting assembly, so that the construction efficiency is improved, the construction period is shortened, the construction cost is reduced, and when the guardrail assembly is damaged in the later use process, the damaged guardrail assembly only needs to be removed and replaced, without the need of large-scale removal of the guardrail assembly of the entire bridge maintenance path, thereby reducing the maintenance cost. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The bridge maintenance path provided by the application is characterized in that the guardrail assembly and the base assembly are detachably designed, and the adjacent pair of guardrail assemblies are connected into one through the connecting assembly, so that the construction efficiency is improved, the construction period is shortened, the construction cost is reduced, and when the guardrail assembly is damaged in the later use process, the damaged guardrail assembly only needs to be removed and replaced, without the need of large-scale removal of the guardrail assembly of the entire bridge maintenance path, thereby reducing the maintenance cost.

[0017] Figure 2 The bridge maintenance path provided by the application is characterized in that the guardrail assembly and the base assembly are detachably designed, and the adjacent pair of guardrail assemblies are connected into one through the connecting assembly, so that the construction efficiency is improved, the construction period is shortened, the construction cost is reduced, and when the guardrail assembly is damaged in the later use process, the damaged guardrail assembly only needs to be removed and replaced, without the need of large-scale removal of the guardrail assembly of the entire bridge maintenance path, thereby reducing the maintenance cost.

[0018] Figure 3 The bridge maintenance path provided by the application is characterized in that the guardrail assembly and the base assembly are detachably designed, and the adjacent pair of guardrail assemblies are connected into one through the connecting assembly, so that the construction efficiency is improved, the construction period is shortened, the construction cost is reduced, and when the guardrail assembly is damaged in the later use process, the damaged guardrail assembly only needs to be removed and replaced, without the need of large-scale removal of the guardrail assembly of the entire bridge maintenance path, thereby reducing the maintenance cost.

[0019] Figure 4 The bridge maintenance path provided by the application is characterized in that the guardrail assembly and the base assembly are detachably designed, and the adjacent pair of guardrail assemblies are connected into one through the connecting assembly, so that the construction efficiency is improved, the construction period is shortened, the construction cost is reduced, and when the guardrail assembly is damaged in the later use process, the damaged guardrail assembly only needs to be removed and replaced, without the need of large-scale removal of the guardrail assembly of the entire bridge maintenance path, thereby reducing the maintenance cost.

[0020] In the figure: 1-steel bridge; 2-base assembly; 21-support frame; 22-way plate; 23-connecting beam; 3-guardrail assembly; 31-stand column; 32-middle stand column; 33-cross rod; 4-connecting assembly; 41-connecting pipe; 42-butting sleeve; 5-socket; 6-wind-resistant stabilizing assembly; 61-horizontal support rod; 62-supporting inclined rod; 63-wind-resistant plate; 7-protective layer; 71-primer layer; 72-connecting layer; 73-topcoat layer. DETAILED DESCRIPTION

[0021] AsFigure 1 、 2 As shown in FIGS. 1-3, a bridge maintenance passage is provided outside the side crash barrier of a steel bridge 1, comprising a base assembly 2 installed on the bridge deck outside the side crash barrier of the steel bridge 1, a guardrail assembly 3 detachably installed on the side of the base assembly 2 away from the side crash barrier, the guardrail assembly 3 comprising a set of upright columns 31, a set of the upright columns 31 being uniformly spaced along the longitudinal direction of the steel bridge 1, a middle upright column 32 being provided between each pair of adjacent upright columns 31, a set of crossbars 33 being provided between adjacent upright columns 31 and middle upright columns 32, a set of the crossbars 33 being uniformly spaced along the axial direction of the upright columns 31, the two ends of the crossbars 33 being connected to the upright columns 31 and the middle upright columns 32 respectively, and a connecting assembly 4 being provided between each pair of adjacent guardrail assemblies 3 for connecting the two adjacent guardrail assemblies 3 into one.

[0022] Based on the above structure, the principle of the bridge maintenance passage is that the base assembly 2 is first installed on the bridge deck outside the side crash barrier of the steel bridge 1, then the prefabricated guardrail assembly 3 is installed on the side of the base assembly 2 away from the side crash barrier, the upright columns 31 on each pair of adjacent guardrail assemblies 3 are correspondingly provided, then the corresponding pair of upright columns 31 are connected through the connecting assembly 4 to complete the connection of the adjacent pair of guardrail assemblies 3; by prefabricating the guardrail assembly 3 in advance, transporting it to the construction site and directly installing it on the base assembly 2, the on-site installation time is greatly shortened, the construction period is shortened, and the construction cost is reduced; by connecting the adjacent pair of guardrail assemblies 3 into one through the connecting assembly 4, the overall stability of the protective device on the long bridge deck is improved, and at the same time, when the guardrail assembly 3 is damaged, the connecting assembly 4 is removed, and the damaged guardrail assembly 3 is removed from the base assembly 2, so that the damaged guardrail assembly 3 can be replaced without the need to remove and rebuild the entire guardrail assembly 3 of the bridge maintenance passage, thereby reducing the maintenance cost and difficulty. The base assembly 2 is connected to the steel bridge 1 in one piece by welding, the upright columns 31 are made of seamless steel pipes with a diameter of 60 mm and a wall thickness of 6 mm, and the middle upright columns 32 and the crossbars 33 are made of seamless steel pipes with a diameter of 48 mm and a wall thickness of 4 mm.

[0023] As Figure 3As shown, in the embodiment, the connecting assembly 4 comprises: a pair of connecting pipes 41, a pair of the connecting pipes 41 are coaxially installed on the adjacent pair of guardrail assemblies 3 respectively; a butt joint sleeve pipe 42, the butt joint sleeve pipe 42 is arranged at the connecting position of the pair of connecting pipes 41, and the butt joint sleeve pipe 42 is used for connecting the pair of connecting pipes 41. The connecting assembly 4 is used for connecting the adjacent pair of guardrail assemblies 3 into one, and enhances the integrity of the guardrail assembly 3; the combination design of the butt joint sleeve pipe 42 and the connecting pipe 41 simplifies the connecting process of the adjacent guardrail assemblies 3, further improves the installation efficiency of the guardrail assembly 3, shortens the construction period, and reduces the construction cost. There are three pairs of connecting pipes 41 between the adjacent pair of guardrail assemblies 3, each pair of connecting pipes 41 corresponds to a group of stand columns 31 one by one, and the number of the butt joint sleeve pipes 42 is also three.

[0024] In the embodiment, the base assembly 2 comprises: a group of support frames 21, a deck plate 22, a group of the support frames 21 are arranged on the deck of the steel bridge 1 outside the crash barrier in the longitudinal direction of the steel bridge 1, a group of connecting beams 23 are arranged between two adjacent pairs of support frames 21 in the transverse direction of the steel bridge 1, the two ends of the connecting beam 23 are connected with the adjacent pair of support frames 21 respectively, the deck plate 22 is arranged on the support frame 21 and the deck plate 22, and the deck plate 22 is arranged in the longitudinal direction of the steel bridge 1. The support frame 21, the deck plate 22 and the connecting beam 23 form a stable bearing system, which can maintain good stability when bearing the load of the construction personnel and the construction load, and a group of connecting beams 23 connect each support frame 21 into a whole, thereby reducing the deformation and displacement possibility of a single support frame 21 under stress. The support frame 21, the deck plate 22 and the connecting beam 23 are all welded, and the number of the connecting beam 23 is three.

[0025] In the embodiment, the support frame 21 is in the shape of “U”, and the two ends of the support frame 21 are connected with the deck of the steel bridge 1 respectively. The support frame 21 is in the shape of “U”, so that an overhead structure is formed between the base assembly 2 and the steel bridge 1. Such a design facilitates the drainage of accumulated water between the base assembly 2 and the steel bridge 1, prevents corrosion of the position under the long-term effect of accumulated water, ensures that the base assembly 2 and the steel bridge 1 remain dry, effectively prolongs the service life, and at the same time, the overhead part forms an accessible space, which is convenient for maintenance personnel to check the connecting position of the base assembly 2 and the steel bridge 1.

[0026] In the embodiment, the base assembly 2 is provided with a group of sockets 5 corresponding to a group of stand columns 31 one by one, and the socket 5 is used for accommodating the stand column 31. Through the installation mode of the socket, the stand column 31 is inserted into the socket 5, so that the guardrail assembly 3 can be quickly installed on the base assembly 2, which can significantly improve the installation efficiency, shorten the construction period, and reduce the construction cost.

[0027] In the embodiment, the guardrail assembly 3 is provided with a wind-resistant stabilizing assembly 6, which comprises a horizontal support rod 61 mounted on the upper end of the stand column 31, the horizontal support rod 61 being arranged perpendicularly to the transverse rod 33; a support inclined rod 62 arranged on the side of the stand column 31 away from the edge crash barrier, the two ends of the support inclined rod 62 being connected with the horizontal support rod 61 and the stand column 31 respectively; and a wind-resistant plate 63 arranged on the horizontal support rod 61 and the support inclined rod 62, the wind-resistant plate 63 extending along the longitudinal direction of the steel bridge 1. The wind-resistant stabilizing assembly 6 is used to improve the wind-resistant capacity of the guardrail assembly 3, the horizontal support rod 61, the support inclined rod 62 and the wind-resistant plate 63 cooperating with each other to form a stable wind-resistant structure system. Under the action of strong wind, the wind-resistant plate 63 first bears the impact force of the wind, transmits the wind load to the horizontal support rod 61 and the support inclined rod 62, then transmits the force to the stand column 31 through the support inclined rod 62, and finally disperses to the entire guardrail assembly 3 and the steel bridge 1. The horizontal support rod 61, the support inclined rod 62 and the wind-resistant plate 63 are connected into one body by welding, the horizontal support rod 61 and the support inclined rod 62 are both made of angle steel with a thickness of 10 mm and a side length of 50 mm, and the wind-resistant plate 63 is made of steel plate with a thickness of 8 mm and a width of 800 mm.

[0028] As shown in Figure 4 In the embodiment, the outer side walls of the guardrail assembly 3 and the wind-resistant stabilizing assembly 6 are both coated with a protective layer 7, which comprises a primer layer 71, a connecting layer 72 and a topcoat layer 73 arranged in sequence from inside to outside. The protective layer 7 can effectively block the contact of the guardrail assembly 3 and the wind-resistant stabilizing assembly 6 with oxygen, moisture and corrosive medium in the external environment, slow down the corrosion speed of the guardrail assembly 3 and the wind-resistant stabilizing assembly 6, prolong the service life of the guardrail assembly 3 and the wind-resistant stabilizing assembly 6, reduce the number of maintenance and replacement due to corrosion, aging and other reasons, thereby reducing the maintenance cost of the steel bridge 1, prolonging the service life thereof and improving the sealing performance of the connecting layer 72. The primer layer 71 is made of hot-dip galvanizing with a thickness of 85 μm, the connecting layer 72 is made of epoxy connecting paint with a thickness of 40 μm, and the topcoat layer 73 is made of fluorocarbon topcoat with a thickness of 70 μm.

[0029] The technical principle of the utility model is described above in combination with specific embodiments, and these descriptions are only for explaining the principle of the utility model, and cannot be interpreted as limiting the protection scope of the utility model in any way. Based on the explanation herein, other specific embodiments of the utility model can be conceived by those skilled in the art without creative labor, and these embodiments will all fall within the protection scope of the utility model.

Claims

1. A bridge maintenance access road, for installation on the outside of the side guardrail of a steel bridge (1), characterized in that: include: The base assembly (2) is installed on the bridge surface outside the side guardrail of the steel bridge (1). The guardrail assembly (3) is detachably installed on the side of the base assembly (2) away from the side guardrail. The guardrail assembly (3) includes: a set of columns (31), which are evenly spaced along the longitudinal direction of the steel bridge (1). A middle column (32) is provided between each pair of adjacent columns (31). A set of crossbars (33) is provided between adjacent columns (31) and middle columns (32). The crossbars (33) are evenly spaced along the axial direction of the columns (31). The two ends of the crossbars (33) are connected to the columns (31) and the middle columns (32) respectively. A connecting assembly (4) is provided between two pairs of adjacent guardrail assemblies (3). The connecting assembly (4) is used to connect two pairs of adjacent guardrail assemblies (3) into one unit.

2. A bridge maintenance access road according to claim 1, characterized in that: The connecting assembly (4) includes: a pair of connecting pipes (41), which are coaxially mounted on an adjacent pair of guardrail assemblies (3); and a connecting sleeve (42), which is disposed at the connection of the pair of connecting pipes (41) and is used to connect the pair of connecting pipes (41).

3. A bridge maintenance access road according to claim 1, characterized in that: The base assembly (2) includes: a set of support frames (21) and a walkway (22). The set of support frames (21) is arranged in a longitudinal array along the steel bridge (1) on the bridge surface outside the side guardrail of the steel bridge (1). A set of connecting beams (23) is provided between each pair of adjacent support frames (21). The set of connecting beams (23) is arranged at intervals along the transverse direction of the steel bridge (1). The two ends of the connecting beams (23) are respectively connected to the adjacent pair of support frames (21). The walkway (22) is covered on the support frames (21) and the walkway (22). The walkway (22) is arranged along the longitudinal direction of the steel bridge (1).

4. A bridge maintenance access road according to claim 3, characterized in that: The support frame (21) is U-shaped, and its two ends are connected to the bridge deck of the steel bridge (1).

5. A bridge maintenance access road according to claim 3, characterized in that: The base assembly (2) is provided with a set of sockets (5) corresponding one-to-one with a set of columns (31), and the sockets (5) are used to accommodate the columns (31).

6. A bridge maintenance access road according to claim 1, characterized in that: The guardrail assembly (3) is provided with: a wind-resistant stabilizing assembly (6), which includes: a horizontal support rod (61), which is installed on the upper end of the column (31), and the setting direction of the horizontal support rod (61) is perpendicular to the setting direction of the crossbar (33); a support diagonal rod (62), which is located on the side of the column (31) away from the edge guardrail, and the two ends of the support diagonal rod (62) are respectively connected to the horizontal support rod (61) and the column (31); and a wind-resistant plate (63), which is located on the horizontal support rod (61) and the support diagonal rod (62), and the wind-resistant plate (63) extends longitudinally along the steel bridge (1).

7. A bridge maintenance access road according to claim 6, characterized in that: The outer walls of the guardrail assembly (3) and the wind-resistant stabilizing assembly (6) are coated with a protective layer (7). The protective layer (7) includes a primer layer (71), a connecting layer (72), and a topcoat layer (73). The primer layer (71), the connecting layer (72), and the topcoat layer (73) are arranged sequentially from the inside to the outside.

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