A railway bridge assembled multi-purpose electrical channel and construction method thereof

Abstract

The present invention discloses a railway bridge assembled multi-purpose electrical channel and a construction method thereof, wherein the electrical channel comprises a plurality of longitudinal unit components which are spliced ​​together, and the longitudinal unit components are arranged on the bridge deck of the railway bridge through positioning and mounting components and bridge deck connectors; each longitudinal unit component comprises: a U-shaped groove, comprising a U-shaped groove bottom plate and U-shaped groove side plates on both sides thereof; a top plate, fixedly arranged on the U-shaped groove side plates; a plurality of partition grooves, arranged on the bottom surface of the top plate and the top surface of the U-shaped groove bottom plate; a fixed partition, arranged between the U-shaped groove bottom plate and the top plate, one end of which is fixedly connected to the U-shaped groove bottom plate, and the other end is inserted into the partition groove on the bottom surface of the top plate, and the fixed partition divides the U-shaped groove into a plurality of functional units; and a movable partition, the upper and lower ends of which are inserted into the partition groove. The present invention is simple and practical, and multiple cable channels are enclosed by fixed partitions and movable partitions, so that the electrical functional areas can be divided according to actual needs, thereby improving the construction efficiency and management and maintenance convenience of the electrical channel.

Description

Technical Field

[0001] The present invention relates to the technical field of bridge electrical devices, and in particular to an assembled multi-purpose electrical passage for a railway bridge and a construction method thereof. Background Art

[0002] As an important part of modern railways, the railway "four electricity" project has high integration and complexity, involves many professions, and is an important guarantee for the safe and efficient operation of railways. With the in-depth development of my country's railway electrification and informatization, large railway bridges involve many "four electricity" project cables and bridge self-use cables. The number of cables is increasing, and the laying space requirements are higher.

[0003] At present, the communication optical cables, railway signal cables, ground wires, 10kV power through-lines and other cables of the railway "four electricity" project are laid in parallel channels with the power supply and control cables of the bridge's own electrical equipment such as bridge inspection vehicles, dehumidification equipment, main tower equipment, power maintenance, maintenance lighting, etc., and are placed in the internal space under the bridge deck maintenance walkway. The current construction method is usually to construct the bridge deck maintenance walkway on the bridge deck site by welding or bolting after the bridge deck is penetrated using a large number of single components such as angle steel, steel plates, round steel, etc.; after the construction of the bridge deck maintenance walkway is completed, the components of the maintenance walkway are used to bolt and install the railway "four electricity" project cables and the bridge's own cables. However, the above construction method has the following disadvantages:

[0004] (1) The number and types of components required for the bridge deck maintenance walkway are numerous, and they are assembled and spliced ​​on site by welding or bolting. The installation work is cumbersome and the construction efficiency is low;

[0005] (2) The troughs for the railway "four power" project cables and the bridge's own cables are bolted and installed using the components of the maintenance walkway. When the components of the maintenance walkway itself cannot meet the installation conditions of each trough, additional installation accessories are required, which increases the construction steps;

[0006] (3) The space under the bridge deck maintenance walkway is limited. Since the cable ducts of various professions have specific distribution order and size requirements, the cable ducts are easily affected by the existing maintenance walkway structural components, resulting in problems such as inability to install, size restrictions, and insufficient safety distance, which in turn leads to insufficient space for cable laying, inadequate installation, difficulty in later maintenance, and difficulty in replacement.

[0007] (4) The above-mentioned professional cable troughs are in various forms, such as galvanized steel troughs, SMC troughs, stainless steel troughs, etc. The channel materials are mixed, the design interfaces are numerous, and there have been relevant electromagnetic interference accident feedbacks, which makes it difficult to ensure the long-term reliable operation of electrical channel cables.

[0008] In view of this, it is urgently necessary to improve the structure and construction method of the electrical channel for railway bridges in the existing technology to improve its versatility and safety, improve the construction efficiency of the electrical channel for railway bridges and the convenience of subsequent inspection and maintenance, and ensure the long-term and reliable operation of the electrical channel cable of the railway bridge. Summary of the invention

[0009] In view of the above-mentioned defects, the purpose of the present invention is to provide an assembled multi-purpose electrical passage for railway bridges and a construction method thereof, so as to solve the problems of long construction period, low efficiency, poor versatility of cable ducts of the electrical passages, inconvenient later inspection and maintenance, and difficulty in ensuring long-term reliable operation of the electrical passage cables in the existing railway bridges.

[0010] To this end, the present invention provides a railway bridge assembled multi-purpose electrical channel, which is composed of a plurality of electrical channel segments arranged along the longitudinal bridge direction, each electrical channel segment includes a plurality of longitudinal unit components formed by splicing, and each of the longitudinal unit components includes:

[0011] The U-shaped groove comprises a U-shaped groove bottom plate and a U-shaped groove side plate, wherein the U-shaped groove side plates are arranged on the left and right sides of the U-shaped groove bottom plate;

[0012] A top plate, arranged above the bottom plate of the U-shaped groove, with its bottom surface connected and fixed to the top surface of the side plate of the U-shaped groove;

[0013] A plurality of partition grooves are provided on the bottom surface of the top plate and the top surface of the U-shaped groove bottom plate;

[0014] A fixed partition is arranged between the U-shaped groove bottom plate and the top plate, one end of which is fixedly connected to the U-shaped groove bottom plate, and the other end of which is inserted into the partition groove on the bottom surface of the top plate, and the fixed partition divides the U-shaped groove into a plurality of functional units;

[0015] The movable partition is arranged in the functional unit, and the upper and lower ends of the movable partition are inserted into the partition groove, and the movable partition is detachably connected with the U-shaped groove and the top plate through the partition groove.

[0016] In the above technical solution, preferably, the electrical channel segment further includes a plurality of groups of positioning and connecting devices, and each group of the positioning and connecting devices includes:

[0017] A bridge deck connector, disposed below the electrical channel segment and fixed to the bridge deck;

[0018] A positioning mounting member is arranged on the top surface of the bridge deck connector, and the positioning mounting member is welded and fixed to the side plates of the U-shaped groove and the side surfaces of the top plate;

[0019] A plurality of groups of the positioning and connecting devices are arranged at intervals along the longitudinal direction of the bridge, and the spacing between two adjacent groups of the positioning and connecting devices is the same.

[0020] In the above technical solution, preferably, the positioning mounting member includes:

[0021] A wing plate, which is semicircular, is arranged on one side of the top plate, and the side surface of the wing plate is welded to the side surface of the top plate;

[0022] Two positioning support plates are arranged opposite to each other on both sides of the U-shaped groove along the longitudinal bridge direction, and the top surfaces of the positioning support plates are welded and fixed to the bottom surfaces of the U-shaped groove side plates;

[0023] A positioning vertical plate is arranged along the transverse direction of the bridge, the top surface of the positioning vertical plate is welded and fixed to the bottom surface of the wing plate, and the side surface of the positioning vertical plate is welded to the outer side surface of the positioning support plate and the outer side surface of the U-shaped groove side plate;

[0024] The wing plates, the positioning vertical plates and the positioning support plates are perpendicular to each other.

[0025] In the above technical solution, preferably, the bridge deck connector includes:

[0026] The T-shaped connector comprises a connector riser and a connector support plate which are perpendicular to each other, wherein the connector support plate is arranged along the longitudinal bridge direction; the connector support plate is arranged on one side of the U-shaped groove;

[0027] A single-board connector is arranged along the longitudinal bridge direction, opposite to the connector support plate, and arranged on the other side of the U-shaped groove;

[0028] The upper ends of the connector support plate and the single-board connector are bolted and fixed to the positioning support plate; the connector vertical plate is bolted and fixed to the positioning vertical plate.

[0029] In the above technical solution, preferably, an inspection door is provided on the top plate, including:

[0030] A chute, the top plate is provided with an inspection opening that passes through the top plate, the chute is provided on the inspection opening, and a chute opening is provided on one side of the chute;

[0031] A door panel, one end of which is inserted into the slot opening and slidably arranged along the slot;

[0032] A limit strip is arranged on the top surface of the top plate, and the limit strip is arranged on a side of the door plate away from the slide groove; as the door plate slides outward along the slide groove, the door plate abuts against the limit strip.

[0033] In the above technical solution, preferably, a wire outlet hole is provided on the bottom plate of the U-shaped groove, and the wire outlet hole and the inspection door correspond to the cable channel separated by the fixed partition and the movable partition.

[0034] In the above technical solution, a plurality of outwardly extending protrusions are provided at both ends of the U-shaped groove side plate, the protrusions are arranged at intervals, and grooves are formed between the protrusions; the protruding lengths of the protrusions are the same, and the protrusions on both ends of the U-shaped groove side plate are adapted to the grooves.

[0035] In the above technical solution, preferably, the widths of the protrusions are different, and a docking unit segment matching key is formed by the protrusions and the grooves.

[0036] In the above technical solution, preferably, a maintenance walkway guardrail and a lamp pole are provided on the top surface of the wing plate.

[0037] The present invention provides a construction method for an assembled multi-purpose electrical passage of a railway bridge, comprising the following steps:

[0038] A longitudinal unit element for forming an assembled multi-purpose electrical channel for a railway bridge is manufactured, wherein the longitudinal unit element comprises a U-shaped groove and a top plate arranged on the U-shaped groove, a partition groove is welded and fixed on the top surface of the bottom plate of the U-shaped groove and the bottom surface of the top plate according to a designed position, and a fixed partition is welded in the U-shaped groove;

[0039] Splicing a plurality of longitudinal units to form an electrical channel segment, and performing trial assembly of the longitudinal units for docking on adjacent electrical channel segments on a test assembly platform;

[0040] Weld and fix the positioning mounting parts to the U-shaped groove and the top plate according to the preset position;

[0041] Weld multiple bridge deck connectors on the railway steel bridge deck at preset positions, or embed them in the concrete bridge deck; hoist the electrical channel segment to the construction location, and preliminarily bolt and fix each electrical channel segment to the bridge deck connector through the positioning and installation parts; install each electrical channel segment in sequence, and when installing the next electrical channel segment, the longitudinal units of the adjacent electrical channel segments are spliced ​​through the matching keys of the docking unit segments, and are fixed by structural adhesive; completely bolt and fix the positioning and installation parts to the bridge deck connector;

[0042] Install the inspection walkway guardrail and light pole on the top surface of the positioning installation piece;

[0043] According to the needs of electrical design, movable partitions are installed to form multiple cable channels; different professional strong and weak cables are inserted into the corresponding cable channels.

[0044] Compared with the prior art, the present invention has the following beneficial effects:

[0045] First of all, the assembled multi-purpose electrical channel of the railway bridge is composed of multiple longitudinal unit components, each of which can be assembled in the factory, shortening the on-site construction time of the electrical channel; the longitudinal unit components include a top plate and a U-shaped groove, and the U-shaped groove is divided into several functional units by fixed partitions. Each functional unit is provided with a partition groove and a movable partition, which is convenient for dividing the functional units according to on-site needs to meet the needs of different professional cables. It has high flexibility and avoids mutual interference between cables, ensuring long-term and reliable operation of the cables.

[0046] Secondly, in a preferred embodiment of the present invention, the electrical channel also includes a positioning connection device, which includes a plurality of bridge deck connectors fixed on the bridge deck and positioning mounting members fixedly connected to the bridge deck connectors and the U-shaped grooves. The installation position of the longitudinal unit element is predetermined by the bridge deck connectors, thereby improving the installation efficiency. The U-shaped grooves and the positioning mounting members are welded and fixed in the factory, and are bolted and fixed to the bridge deck connectors on site by the positioning mounting members, thereby further improving the installation efficiency.

[0047] Finally, in another preferred embodiment of the present invention, a plurality of outwardly extending protrusions are provided at both ends of the U-shaped groove side plates of each longitudinal unit element, and grooves are formed between the protrusions. The protrusions have different widths, and form docking unit segment matching keys with the grooves for distinguishing the installation direction of the longitudinal unit elements, thereby avoiding incorrect installation direction of the longitudinal unit elements, delaying the construction period of the electrical channel, and improving the construction efficiency of the electrical channel. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces and describes the drawings required for use in the embodiments of the present invention or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0049] Figure 1 A three-dimensional diagram of the assembled multi-purpose electrical channel of the railway bridge of the present invention;

[0050] Figure 2 It is a front view of the assembled multi-purpose electrical channel of the railway bridge in the present invention;

[0051] Figure 3 It is a side view of the assembled multi-purpose electrical channel of the railway bridge in the present invention;

[0052] Figure 4 It is a structural schematic diagram of the inspection door in the present invention.

[0053] Figure 1-4 In the figure, the corresponding relationship between the parts and the reference numerals is as follows:

[0054] U-shaped groove 1, top plate 2, fixed partition 3, partition groove 4, movable partition 5, bridge deck 6, bridge deck connector 7, positioning mounting part 8, maintenance walkway guardrail 9, cable line 10,

[0055] U-shaped groove bottom plate 11, U-shaped groove side plate 12, docking unit segment matching key 13, outlet hole 14,

[0056] Slide groove 21, door panel 22, limit strip 23,

[0057] Single board connector 71, connector riser 72, connector support plate 73,

[0058] Wing plate 81 , positioning vertical plate 82 , positioning support plate 83 . DETAILED DESCRIPTION

[0059] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0060] The implementation principle of the present invention is:

[0061] An electrical channel segment is assembled by assembling a plurality of longitudinal unit components, and then the electrical channel segment is hoisted to the construction site for assembly; wherein, the longitudinal unit component comprises a U-shaped groove and a top plate arranged on the U-shaped groove, a plurality of fixed partitions are fixedly arranged in the U-shaped groove, and the fixed partitions divide the U-shaped groove into a plurality of functional units, and a partition groove and a movable partition are arranged in each functional unit, and the functional units are divided by the partition grooves and the movable partitions according to the construction needs of the construction site.

[0062] The solution provided by the present invention can flexibly divide the functional units in the electrical channel. The electrical channel segments are pre-assembled in the factory, which saves the on-site construction time of the electrical channel. The functional units are divided by detachable connection of movable partitions and partition grooves, which facilitates the flexible setting of the electrical channel according to on-site needs, and eliminates the influence of electromagnetic interference between different cables by fixing the partitions.

[0063] Specifically, the railway bridge assembled multi-purpose electrical channel provided by the present invention is composed of a plurality of electrical channel segments, each of which includes a plurality of longitudinal unit components formed by splicing, and each of the longitudinal unit components includes:

[0064] The U-shaped groove comprises a U-shaped groove bottom plate and a U-shaped groove side plate, wherein the U-shaped groove side plates are arranged on the left and right sides of the U-shaped groove bottom plate;

[0065] A top plate, arranged above the bottom plate of the U-shaped groove, with its bottom surface connected and fixed to the top surface of the side plate of the U-shaped groove;

[0066] A plurality of partition grooves are provided on the bottom surface of the top plate and the top surface of the U-shaped groove bottom plate;

[0067] A fixed partition is arranged between the U-shaped groove bottom plate and the top plate, one end of which is fixedly connected to the U-shaped groove bottom plate, and the other end of which is inserted into the partition groove on the bottom surface of the top plate, and the fixed partition divides the U-shaped groove into a plurality of functional units;

[0068] The movable partition is arranged in the functional unit, and the upper and lower ends of the movable partition are inserted into the partition groove, and the movable partition is detachably connected with the U-shaped groove and the top plate through the partition groove.

[0069] In order to more clearly explain and illustrate the technical solution and implementation of the present invention, several preferred specific embodiments for implementing the technical solution of the present invention are introduced below.

[0070] It should be noted that when an element is referred to as being "fixed on" or "set on" another element, it can be directly on the other element or indirectly set on the other element; when an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0071] In addition, the terms in this document, such as “inside, outside”, “front, back”, “left, right”, “vertical, horizontal”, “top, bottom”, etc., indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0072] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features.

[0073] Specific embodiment 1.

[0074] like Figures 1 to 4 As shown, the assembled multi-purpose electrical channel for railway bridge provided by the present invention is composed of a plurality of electrical channel segments arranged along the longitudinal direction of the bridge, each electrical channel segment includes a plurality of longitudinal unit components formed by splicing, and each longitudinal unit component includes a U-shaped groove 1, a top plate 2, a fixed partition 3, a partition groove 4 and a movable partition 5.

[0075] The U-shaped groove 1 includes a U-shaped groove bottom plate 11 and U-shaped groove side plates 12 . The U-shaped groove side plates 12 are arranged on the left and right sides of the U-shaped groove bottom plate 11 .

[0076] The two ends of the U-shaped groove side plate 12 are provided with a plurality of protruding portions extending outward, and the protrusions are arranged at intervals, and grooves are formed between the protrusions; the protrusions have the same protruding length, and the protrusions on the two ends of the U-shaped groove side plate 12 are adapted to the grooves. The widths of the protrusions are different, and the protrusions and the grooves form a docking unit segment matching key 13. The docking unit segment matching key 13 with unique matching is used to realize the direction identification of the electrical channel segment, and avoid the electrical channel segment being installed upside down to affect the normal laying of the cable. The top plate 2 is arranged above the U-shaped groove bottom plate 11, and the bottom surface of the top plate 2 is connected and fixed to the top surface of the U-shaped groove side plate 12.

[0077] A plurality of partition grooves 4 are provided on the bottom surface of the top plate 2 and the top surface of the U-shaped groove bottom plate 11 .

[0078] The fixed partition 3 is arranged between the U-shaped groove bottom plate 11 and the top plate 2. One end of the fixed partition 3 is fixedly connected to the U-shaped groove bottom plate 11, and the other end is inserted into the partition groove 4 on the bottom surface of the top plate 2. The fixed partition 3 divides the U-shaped groove 1 into several functional units.

[0079] The movable partition 5 is arranged in the functional unit, and the upper and lower ends of the movable partition 5 are inserted into the partition groove 4, so as to further separate each functional unit into a plurality of cable channels. The movable partition 5 is detachably connected with the U-shaped groove 1 and the top plate 2 through the partition groove 4, so as to facilitate the division of the position and size of each cable channel according to actual construction needs.

[0080] The U-shaped groove bottom plate 11 is provided with a wire outlet hole 14, which corresponds to the cable channel separated by the fixed partition 3 and the movable partition 5. The top plate 2 is provided with an inspection port that runs through the top plate 2, and the inspection port is provided with an inspection door, which includes a slide groove 21 and a door panel 22. The slide groove 21 is provided on the inspection port, and a slide groove opening is provided on one side of the slide groove 21; one end of the door panel 22 is inserted into the slide groove opening and slides along the slide groove 21; a limiting strip 23 is provided on the side of the door panel 22 away from the slide groove, and the limiting strip 23 is provided on the top surface of the top plate 2, and as the door panel 22 slides outward along the slide groove 21, the door panel 22 abuts against the limiting strip 23. The limiting strip 23 limits the door panel 22 to prevent the door panel 22 from being separated from the slide groove 21, so that the cables 10 in the cable channel are exposed, affecting the safety of the cables 10 in the cable channel.

[0081] The electrical channel segment also includes multiple groups of positioning and connecting devices, each group of positioning and connecting devices includes a bridge deck connector 7 and a positioning and mounting member 8, and the bridge deck connector 7 is arranged below the electrical channel segment for fixing with the bridge deck 6. The positioning and mounting member 8 is arranged on the top surface of the bridge deck connector 7 and is welded and fixed to the U-shaped groove side plate 12 and the top plate 2. The multiple groups of positioning and connecting devices are arranged in a spaced arrangement along the longitudinal direction of the bridge, and the spacing between two adjacent groups of positioning and connecting devices is the same.

[0082] The positioning mounting member 8 includes a wing plate 81, a positioning vertical plate 82 and a positioning support plate 83. The wing plate 81 is semicircular, and the wing plate 81 is arranged on one side of the top plate 2, and the side of the wing plate 81 is welded to the side of the top plate 2. Two positioning support plates 83 are arranged opposite to each other on both sides of the U-shaped groove 1 along the longitudinal bridge direction. The top surfaces of the two positioning support plates 83 are welded and fixed to the bottom surfaces of the U-shaped groove side plates 12. The positioning vertical plate 82 is arranged along the transverse bridge direction, and the top surfaces of the positioning vertical plates 82 are welded and fixed to the wing plates 81, and the side surfaces of the positioning vertical plates 82 are welded to the outer side surfaces of the positioning support plates 83 and the outer side surfaces of the U-shaped groove side plates 12. The wing plates 81, the positioning vertical plates 82 and the positioning support plates 83 are perpendicular to each other.

[0083] The bridge deck connector 7 includes a T-shaped connector and a single-plate connector 71. The T-shaped connector includes a connector riser 72 and a connector support plate 73 that are perpendicular to each other. The connector support plate 73 is arranged along the longitudinal bridge direction and is arranged on one side of the U-shaped groove 1. The single-plate connector 71 is arranged along the longitudinal bridge direction and is arranged opposite to the connector support plate 73 and is arranged on the other side of the U-shaped groove 1. The upper ends of the connector support plate 73 and the single-plate connector 71 are bolted and fixed to the positioning support plate 83, and the connector riser 72 is bolted and fixed to the positioning riser 82 on the positioning mounting member 8.

[0084] The top surface of the wing plate 81 is provided with a maintenance walkway guardrail 9 and a lamp pole. The maintenance walkway guardrail 9 and the lamp pole are arranged on the wing plate 81 to avoid occupying the space on the top surface of the top plate 2, thereby expanding the space of the maintenance walkway and avoiding the maintenance walkway guardrail 9 and the lamp pole occupying the working space when the maintenance personnel perform maintenance on the cable line 10 in the cable channel on the maintenance walkway.

[0085] Specific embodiment 2.

[0086] The present invention also provides a construction method for an assembled multi-purpose electrical channel of a railway bridge, comprising the following steps:

[0087] S1. Production and assembly of unit components;

[0088] The longitudinal unit components for composing the assembled multi-purpose electrical channel of the railway bridge are manufactured in the factory. The longitudinal unit components include a U-shaped groove 1 and a top plate 2, and the top plate 2 is welded and fixed on the U-shaped groove side plate 12. According to the electrical design requirements, a partition groove 4 is welded at the designed position of the top surface of the U-shaped groove bottom plate 11 and the bottom surface of the top plate 2; the partition 3 is welded and fixed in the U-shaped groove 1 to divide the U-shaped groove 1 into several functional units.

[0089] S2, trial assembly of longitudinal units;

[0090] A plurality of longitudinal units are spliced ​​together to form an electrical channel segment, and the longitudinal units for docking on adjacent electrical channel segments are trial-assembled on a trial assembly platform to detect whether the docking unit segment matching keys 13 of the longitudinal units for docking match.

[0091] S3, installation of segment structure;

[0092] The positioning mounting member 8 is welded and fixed on the U-shaped groove 1 and the top plate 2 according to the preset position;

[0093] A plurality of bridge deck connectors 7 are welded to the railway steel bridge deck at preset positions, or are pre-buried in the concrete bridge deck; the electrical channel segment is hoisted to the construction site, and is initially bolted and fixed to the bridge deck connector 7 by means of the positioning and mounting parts 8; each electrical channel segment is installed in sequence, and when the next electrical channel segment is installed, the longitudinal units of adjacent electrical channel segments are spliced ​​by means of the docking unit segment matching keys 13, and the docking unit segment matching keys 13 are bonded and fixed by means of structural adhesive; and then the positioning and mounting parts 8 and the bridge deck connector 7 are completely bolted and fixed.

[0094] S4. Installation of accessories;

[0095] The inspection walkway guardrail 9 and the lamp pole are installed on the top surface of the positioning installation member 8 , wherein the inspection walkway guardrail 9 and the lamp pole are installed on the wing plate 81 of the positioning installation member 8 .

[0096] S5. Installation of strong and weak cables.

[0097] According to the electrical design requirements, the movable partition 5 is inserted into the partition groove 4 to complete the installation of the movable partition 5. The movable partition 5 forms a plurality of cable channels in the functional unit; the cables 10 of different professional strengths are inserted into the corresponding cable channels.

[0098] Compared with the prior art, the present invention provides an assembled multi-purpose electrical channel for a railway bridge and a construction method thereof, wherein the electrical channel consists of a plurality of electrical channel segments, each of which is formed by splicing a plurality of longitudinal unit components, and the manufacture and welding of the longitudinal unit components and the assembly of the electrical channel segments can be completed in a factory and on an assembly platform, thereby greatly simplifying the construction steps of on-site construction of the electrical channel and improving the efficiency of on-site construction.

[0099] A fixed partition is fixed in the longitudinal unit element, which divides the U-shaped groove into several functional units. Each functional unit is provided with a partition groove and a movable partition. The functional unit is divided into multiple cable channels by the movable partition. Cables with different professional strengths can be arranged in different functional units according to their electromagnetic strength, so as to avoid electromagnetic interference between different cables; the movable partitions and the partition grooves in the functional units are detachably connected, which is convenient for adjusting the position of the cable channel according to the needs of on-site wiring, and has high flexibility.

[0100] The electrical channel segment is installed on the bridge deck through a positioning connection device. The positioning connection device includes a bridge deck connector and a positioning installation member. The bridge deck connector is fixed to the bridge deck. The positioning installation member is welded to the longitudinal unit element and bolted to the bridge deck connector. The position of the longitudinal unit element is determined by the bridge deck connector and the positioning installation member, which greatly improves the installation efficiency of the longitudinal unit element.

[0101] Finally, it should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which this application can be implemented. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in this application without affecting the effects and purposes that can be achieved by this application.

[0102] As used herein, the terms "comprises," "includes," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article, or apparatus. In the absence of more limitations, an element defined by the phrase "includes a ..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element.

[0103] The present invention is not limited to the above-mentioned optimal implementation mode. Anyone should be aware that any structural changes made under the inspiration of the present invention, and any technical solutions that are the same or similar to the present invention, fall within the protection scope of the present invention.

Claims

1. A railway bridge assembled multi-purpose electrical channel, characterized in that: It is composed of a plurality of electrical channel segments arranged along the longitudinal bridge direction, each electrical channel segment includes a plurality of longitudinal unit elements formed by splicing, and each of the longitudinal unit elements includes: The U-shaped groove comprises a U-shaped groove bottom plate and a U-shaped groove side plate, wherein the U-shaped groove side plates are arranged on the left and right sides of the U-shaped groove bottom plate; A top plate, arranged above the bottom plate of the U-shaped groove, with its bottom surface connected and fixed to the top surface of the side plate of the U-shaped groove; A plurality of partition grooves are provided on the bottom surface of the top plate and the top surface of the U-shaped groove bottom plate; A fixed partition is arranged between the U-shaped groove bottom plate and the top plate, one end of which is fixedly connected to the U-shaped groove bottom plate, and the other end of which is inserted into the partition groove on the bottom surface of the top plate, and the fixed partition divides the U-shaped groove into a plurality of functional units; A movable partition is arranged in the functional unit, the upper and lower ends of the movable partition are inserted into the partition groove, and the movable partition is detachably connected with the U-shaped groove and the top plate through the partition groove; The electrical channel segment further comprises a plurality of sets of positioning and connecting devices, each set of the positioning and connecting devices comprising: A bridge deck connector, disposed below the electrical channel segment and fixed to the bridge deck; A positioning mounting member is arranged on the top surface of the bridge deck connector, and the positioning mounting member is welded and fixed to the side plates of the U-shaped groove and the side surfaces of the top plate; A plurality of groups of the positioning and connecting devices are arranged in a spaced arrangement along the longitudinal direction of the bridge, and the spacing between two adjacent groups of the positioning and connecting devices is the same; The positioning mounting member comprises: A wing plate, which is semicircular, is arranged on one side of the top plate, and the side surface of the wing plate is welded to the side surface of the top plate; Two positioning support plates are arranged opposite to each other on both sides of the U-shaped groove along the longitudinal bridge direction, and the top surfaces of the positioning support plates are welded and fixed to the bottom surfaces of the U-shaped groove side plates; A positioning vertical plate is arranged along the transverse direction of the bridge, the top surface of the positioning vertical plate is welded and fixed to the bottom surface of the wing plate, and the side surface of the positioning vertical plate is welded to the outer side surface of the positioning support plate and the outer side surface of the U-shaped groove side plate; The wing plate, the positioning vertical plate and the positioning support plate are perpendicular to each other; The bridge deck connector comprises: The T-shaped connector comprises a connector riser and a connector support plate which are perpendicular to each other, wherein the connector support plate is arranged along the longitudinal bridge direction; the connector support plate is arranged on one side of the U-shaped groove; A single-board connector is arranged along the longitudinal bridge direction, opposite to the connector support plate, and arranged on the other side of the U-shaped groove; The upper ends of the connector support plate and the single-board connector are bolted and fixed to the positioning support plate; the connector vertical plate is bolted and fixed to the positioning vertical plate; A maintenance walkway guardrail and a lamp pole are arranged on the top surface of the wing plate.

2. The assembled multi-purpose electrical channel for railway bridge according to claim 1 is characterized in that: The top plate is provided with an inspection door, including: A chute, the top plate is provided with an inspection opening that passes through the top plate, the chute is provided on the inspection opening, and a chute opening is provided on one side of the chute; A door panel, one end of which is inserted into the slot opening and slidably arranged along the slot; A limit strip is arranged on the top surface of the top plate, and the limit strip is arranged on a side of the door plate away from the slide groove; as the door plate slides outward along the slide groove, the door plate abuts against the limit strip.

3. The assembled multi-purpose electrical channel for railway bridge according to claim 2 is characterized in that: The U-shaped groove bottom plate is provided with a wire outlet hole, and the wire outlet hole and the inspection door correspond to the cable channel separated by the fixed partition plate and the movable partition plate.

4. The assembled multi-purpose electrical channel for railway bridge according to claim 1 is characterized in that: The two ends of the U-shaped groove side plate are provided with a plurality of protruding portions extending outward, the protruding portions are arranged at intervals, and grooves are formed between the protruding portions; the protruding lengths of the protruding portions are the same, and the protruding portions on the two ends of the U-shaped groove side plate are adapted to the grooves.

5. The assembled multi-purpose electrical channel for railway bridge according to claim 4 is characterized in that: The widths of the protrusions are different, and a docking unit segment matching key is formed by the protrusions and the grooves.

6. A construction method for the assembled multi-purpose electrical channel of a railway bridge according to claim 1, characterized in that: The following steps are involved: A longitudinal unit element for forming an assembled multi-purpose electrical channel for a railway bridge is manufactured, wherein the longitudinal unit element comprises a U-shaped groove and a top plate arranged on the U-shaped groove, a partition groove is welded and fixed on the top surface of the bottom plate of the U-shaped groove and the bottom surface of the top plate according to a designed position, and a fixed partition is welded in the U-shaped groove; Splicing a plurality of longitudinal units to form an electrical channel segment, and performing trial assembly of the longitudinal units for docking on adjacent electrical channel segments on a test assembly platform; Weld and fix the positioning mounting parts to the U-shaped groove and the top plate according to the preset position; Weld multiple bridge deck connectors on the railway steel bridge deck at preset positions, or embed them in the concrete bridge deck; hoist the electrical channel segment to the construction location, and preliminarily bolt and fix each electrical channel segment to the bridge deck connector through the positioning installation piece; install each electrical channel segment in sequence, and when installing the next electrical channel segment, the longitudinal units of the adjacent electrical channel segments are spliced ​​through the matching keys of the docking unit segments, and are fixed by bonding with structural adhesive; completely bolt and fix the positioning installation piece and the bridge deck connector; Install the inspection walkway guardrail and light pole on the top surface of the positioning installation piece; According to the needs of electrical design, movable partitions are installed to form multiple cable channels; different professional strong and weak cables are inserted into the corresponding cable channels.

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