A method and device for installing a steel truss cable carrying channel

Abstract

The present invention discloses a method and device for installing a cable carrying channel of a steel truss, and relates to the technical field of cable carrying channel construction. The method comprises: step S1, using a lifting assembly to lift a cable carrying channel segment to be installed, and then lowering the cable carrying channel segment so that its two ends fall on two first platforms respectively; step S2, using the two first platforms as construction platforms, installing the cable carrying channel segment on the lower end of the upper crossbeam of the steel truss; step S3, moving the lifting assembly and the two first platforms along the track to the installation position of the next cable carrying channel segment to be installed; step S4, repeating steps S1 to S3 until all the cable carrying channel segments are installed. The present invention lifts the cable carrying channel segment to be installed by a lifting assembly, and places its two ends on two first platforms respectively, and then uses the two first platforms to install the cable carrying channel segment to be installed, so that the construction risk is low and the construction efficiency is high.

Description

Technical Field

[0001] The invention relates to the technical field of cable carrying channel construction, and in particular to a method and a device for installing a steel truss cable carrying channel. Background Art

[0002] At present, in the installation of auxiliary structures of steel truss bridges, the cable carrying channel is generally located at the lower part of the upper bridge deck, which is inaccessible to construction workers and often difficult to install.

[0003] In the prior art, the common method for installing a cable carrying channel is generally as follows: a large truss is set on the bridge deck, a right-angle cantilever device is set on the truss to extend from the lateral outside of the bridge into the lower end of the steel truss to provide an installation platform, a lifting device is set on the installation platform, and the cable carrying channel segment is lifted from under the bridge to the installation platform for installation.

[0004] However, the above installation method has at least the following problems:

[0005] 1. The right-angle cantilever device is in a cantilever state, and the risk of overturning is high;

[0006] 2. The cable channel segment is hoisted from under the bridge to the installation platform for installation. The hoisting length is too long and is greatly affected by wind swing;

[0007] 3. When the right-angle cantilever device moves along the longitudinal direction of the bridge, it will encounter the secondary truss struts between the steel trusses and needs to be rotated repeatedly to avoid them. In addition to the risk of overturning, it also reduces construction efficiency. Summary of the invention

[0008] The embodiment of the present invention provides a method and device for installing a steel truss cable carrying channel, which can solve the technical problem of the prior art of setting a right-angle cantilever device on the bridge deck to install the steel truss cable carrying channel, which has the risk of overturning.

[0009] In a first aspect, a method for installing a steel truss cable carrying channel is provided, the method comprising the following steps:

[0010] Step S1, using a lifting assembly to lift a cable carrying channel segment to be installed, and then lowering the cable carrying channel segment so that both ends thereof fall on two first platforms respectively;

[0011] Step S2, using the two first platforms as construction platforms, installing the cable carrying channel segment on the lower end of the upper cross beam of the steel truss;

[0012] Step S3, moving the lifting assembly and the two first platforms along the track to the installation position of the next cable carrying channel segment to be installed;

[0013] Step S4, repeating steps S1 to S3 until all cable carrying channel segments are installed.

[0014] In some embodiments, the method further comprises the following steps:

[0015] The cable carrying channel segment to be installed is transported to just below the lifting assembly using the second platform.

[0016] In some embodiments, in step S1, the method of using a lifting assembly to lift a cable carrying channel segment to be installed, and then lowering the cable carrying channel segment so that both ends thereof fall on two first platforms respectively, comprises:

[0017] Move the two first platforms so that the distance between the two first platforms is larger than the cable carrying channel segment to be installed;

[0018] Using a lifting assembly to lift the cable carrying channel segment so that it passes between the two first platforms and is higher than the two first platforms;

[0019] Then, the two first platforms are moved so that the distance between the two first platforms is smaller than the length of the cable carrying channel segment;

[0020] The cable carrying channel segment is lowered so that both ends thereof fall on the two first platforms respectively.

[0021] In a second aspect, a device for installing a steel truss cable carrying channel is provided, the device comprising:

[0022] A track is arranged longitudinally along the steel truss and fixed to the lower end of the upper cross beam of the steel truss;

[0023] A lifting assembly, which is movably connected to the track and can move along the track, and the lifting assembly is used to lift the cable carrying channel segment to be installed;

[0024] Two first platforms are relatively spaced apart and arranged on both sides of the lifting assembly. Both of the first platforms are movably connected to the track and can move along the track. The two first platforms are used to respectively receive the two ends of the cable carrying channel segment to be installed lifted by the lifting assembly.

[0025] In some embodiments, the first platform includes a base, and the base is divided into a safety area and a receiving area. The safety area is used for construction workers to work, and the receiving area is used to receive the cable carrying channel segment to be installed lifted by the lifting assembly.

[0026] In some embodiments, the first platform includes four suspension rods, one end of the four suspension rods is connected to the base and the four suspension rods are arranged at intervals to form the safety zone, and a guardrail is connected between two adjacent suspension rods.

[0027] In some embodiments, the first platform includes four walking mechanisms corresponding to the four suspension rods, the lower end of each walking mechanism is connected to the upper end of the corresponding suspension rod, and the upper end of each walking mechanism is movably connected to the track and can move along the track.

[0028] In some embodiments, a plurality of spaced first rollers are disposed on the base, and the axes of the plurality of first rollers are parallel to the longitudinal direction of the steel truss.

[0029] In some embodiments, the device further comprises:

[0030] The second platform is detachably connected to the upper end of the lower cross beam of the steel truss, and the second platform is used to transport the cable carrying channel segment to be installed to the bottom of the lifting assembly.

[0031] In some embodiments, the second platform includes:

[0032] Four upright columns, which are detachably connected to the upper end of the lower cross beam of the steel truss and are arranged at intervals to form a rectangle;

[0033] A connecting assembly, the connecting assembly is connected to the four columns and extends transversely to just below the lifting assembly, the connecting assembly comprising a plurality of staggered longitudinal connecting members and transverse connecting members;

[0034] A plurality of spaced second rollers are arranged on the connection assembly, and the axes of the plurality of second rollers are parallel to the longitudinal direction of the steel truss.

[0035] The beneficial effects brought about by the technical solution provided by the present invention include:

[0036] An embodiment of the present invention provides a method and device for installing a steel truss cable carrying channel, wherein a cable carrying channel segment to be installed is lifted by a lifting assembly, and both ends of the cable carrying channel segment to be installed are respectively placed on two first platforms, and then the cable carrying channel segment to be installed is installed on the lower end of the upper crossbeam of the steel truss using the two first platforms, thereby avoiding the use of a right-angle cantilever device to install the steel truss cable carrying channel, with low construction risk and high construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0038] Figure 1 A flow chart of a method for installing a steel truss cable carrying channel provided in an embodiment of the present invention;

[0039] Figure 2 A flowchart of step S1 in a method for installing a steel truss cable carrying channel provided in an embodiment of the present invention;

[0040] Figure 3 A schematic diagram of the structure of a device for installing a steel truss cable carrying channel provided by an embodiment of the present invention;

[0041] Figure 4 The embodiment of the present invention provides Figure 3 A right view of

[0042] Figure 5 The embodiment of the present invention provides Figure 3 An enlarged schematic diagram of

[0043] Figure 6 The embodiment of the present invention provides Figure 5 A top view of

[0044] Figure 7 The embodiment of the present invention provides Figure 3 Another enlarged schematic diagram of;

[0045] Figure 8 The embodiment of the present invention provides Figure 7 A top view of

[0046] Fig. 9 The embodiment of the present invention provides Figure 7 A right view of

[0047] In the figure: 1. track; 2. lifting assembly; 3. first platform; 31. base; 311. safety zone; 312. receiving zone; 32. suspension rod; 321. guardrail; 33. walking mechanism; 34. first roller; 4. second platform; 41. column; 42. connection assembly; 421. longitudinal connector; 422. transverse connector; 43. second roller; 44. web member; 45. reinforcing rod; 5. cable carrying channel segment; 6. secondary truss support rod between steel truss sections; 7. temporary anchor. DETAILED DESCRIPTION

[0048] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are 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.

[0049] An embodiment of the present invention provides a method for installing a steel truss cable carrying channel, which can solve the technical problem of the prior art of setting a right-angle cantilever device on the bridge deck to install the steel truss cable carrying channel, which has the risk of overturning.

[0050] See also Figure 1 A method for installing a steel truss cable carrying channel is shown, the method comprising the following steps:

[0051] Step S1, use the lifting assembly 2 to lift a cable carrying channel segment to be installed, and then lower the cable carrying channel segment so that both ends of the segment fall on two first platforms 3 respectively.

[0052] Specifically, see Figure 2 As shown, the method of using the lifting assembly 2 to lift a cable carrying channel segment to be installed, and then lowering the cable carrying channel segment so that both ends thereof fall on two first platforms 3 respectively, includes:

[0053] Step S101, moving the two first platforms 3 so that the distance between the two first platforms 3 is larger than the cable carrying channel segment to be installed.

[0054] Step S102 , using the lifting assembly 2 to lift the cable carrying channel segment so that it passes between the two first platforms 3 and is higher than the two first platforms 3 .

[0055] Step S103, moving the two first platforms 3 again, and making the distance between the two first platforms 3 smaller than the length of the cable carrying channel segment.

[0056] Step S104 , lowering the cable carrying channel segment so that both ends thereof fall on the two first platforms 3 respectively.

[0057] Step S2, using the two first platforms 3 as construction platforms, installing the cable carrying channel segment on the lower end of the upper cross beam of the steel truss.

[0058] Step S3, moving the lifting assembly 2 and the two first platforms 3 along the track 1 to the installation position of the next cable carrying channel segment to be installed.

[0059] Step S4, repeating steps S1 to S3 until all cable carrying channel segments are installed.

[0060] The method for installing a steel truss cable carrying channel in an embodiment of the present invention lifts the cable carrying channel segment to be installed by a lifting assembly 2, and places the two ends of the cable carrying channel segment to be installed on two first platforms 3 respectively, and then uses the two first platforms 3 to install the cable carrying channel segment to be installed on the lower end of the upper crossbeam of the steel truss, avoiding the use of a right-angle cantilever device to install the steel truss cable carrying channel, with low construction risk and high construction efficiency.

[0061] As an optional implementation, the method for installing a steel truss cable carrying channel in an embodiment of the present invention further includes using a second platform 4 to transport the cable carrying channel segment to be installed to directly below the lifting assembly 2, so that the cable carrying channel segment to be installed does not need to be lifted from under the bridge. The construction efficiency can be improved by cooperating with the lifting assembly 2 and the two first platforms 3.

[0062] See also Figure 3 and Figure 4 As shown, an embodiment of the present invention further provides a device for installing a steel truss cable carrying channel, the device comprising: a track 1, a lifting assembly 2 and two first platforms 3.

[0063] The track 1 is arranged longitudinally along the steel truss and fixed to the lower end of the upper cross beam of the steel truss. The lifting assembly 2 is movably connected to the track 1 and can move along the track 1. The lifting assembly 2 is used to lift the cable carrying channel segment to be installed. Two first platforms 3 are arranged at opposite intervals on both sides of the lifting assembly 2. Both of the first platforms 3 are movably connected to the track 1 and can move along the track 1. The two first platforms 3 are used to receive the cable carrying channel segment to be installed lifted by the lifting assembly 2.

[0064] See also Figure 1 As shown, the working principle of the device for installing the steel truss cable carrying channel is as follows:

[0065] Step S1, use the lifting assembly 2 to lift a cable carrying channel segment to be installed, and then lower the cable carrying channel segment so that both ends of the segment fall on two first platforms 3 respectively.

[0066] Step S2, using the two first platforms 3 as construction platforms, installing the cable carrying channel segment on the lower end of the upper cross beam of the steel truss. In addition, in order to ensure the stability of the construction of the two first platforms 3, temporary anchors 7 can be used to temporarily fix the first platforms 3 to the upper cross beam of the steel truss.

[0067] Step S3, moving the lifting assembly 2 and the two first platforms 3 along the track 1 to the installation position of the next cable carrying channel segment to be installed.

[0068] Step S4, repeating steps S1 to S3 until all cable carrying channel segments are installed.

[0069] The device for installing the cable carrying channel of the steel truss in the embodiment of the present invention is configured by setting a lifting assembly 2 and two first platforms 3. The cable carrying channel segment to be installed is lifted by the lifting assembly 2, and the two ends of the cable carrying channel segment to be installed are respectively placed on the two first platforms 3. The cable carrying channel segment to be installed is then installed on the lower end of the upper crossbeam of the steel truss by using the two first platforms 3, thereby avoiding the use of a right-angle cantilever device to install the cable carrying channel of the steel truss, and having low construction risk and high construction efficiency.

[0070] As an optional embodiment, the device for installing the steel truss cable carrying channel in the embodiment of the present invention is shown in FIG. Figure 5 and Figure 6 As shown, the first platform 3 includes a base 31, and the base 31 is divided into a safety area 311 and a receiving area 312. The safety area 311 is used for construction workers to work, and the receiving area 312 is used to receive the cable carrying channel segment to be installed lifted by the lifting assembly 2. By dividing the base 31 into zones, the space on the base 31 can be reasonably utilized.

[0071] As an optional embodiment, the device for installing the steel truss cable carrying channel in the embodiment of the present invention is shown in FIG. Figure 5 and Figure 6 As shown, the first platform 3 includes four suspension rods 32, one end of the four suspension rods 32 is connected to the base 31 and is spaced apart to form the safety zone 311, and a guardrail 321 is connected between two adjacent suspension rods 32, and the guardrail 321 can protect construction workers.

[0072] As an optional embodiment, the device for installing the steel truss cable carrying channel in the embodiment of the present invention is shown in FIG. Figure 5 and Figure 6 As shown, the first platform 3 includes four walking mechanisms 33 corresponding to the four suspension rods 32, the lower end of each walking mechanism 33 is connected to the upper end of the corresponding suspension rod 32, and the upper end of each walking mechanism 33 is movably connected to the track 1 and can move along the track 1. The four walking mechanisms 33 can drive the first platform 3 to move along the track 1, which is convenient for construction.

[0073] As an optional embodiment, the device for installing the steel truss cable carrying channel in the embodiment of the present invention is shown in FIG. Figure 5 As shown, the base 31 is provided with a plurality of spaced first rollers 34, the axes of the plurality of first rollers 34 are parallel to the longitudinal direction of the steel truss, and the first rollers 34 are used to move the cable carrying channel segments to be installed on the first platform 3, so as to facilitate construction.

[0074] As an optional embodiment, the device for installing the steel truss cable carrying channel in the embodiment of the present invention is shown in FIG. Figure 3 and Figure 4 As shown, the device further includes: a second platform 4, which is detachably connected to the upper end of the lower cross beam of the steel truss, and is used to transport the cable carrying channel segment to be installed to just below the lifting assembly 2. The second platform 4 makes it unnecessary to lift the cable carrying channel segment to be installed from under the bridge, and cooperates with the lifting assembly 2 and the two first platforms 3 to improve the construction efficiency.

[0075] Further, see Figure 7 and Figure 8 As shown, the second platform 4 includes: four columns 41, a connecting assembly 42 and a plurality of spaced second rollers 43.

[0076] The four columns 41 are detachably connected to the upper end of the lower cross beam of the steel truss and are arranged at intervals to form a rectangle, so that the second platform 4 can be moved and installed and disassembled along the longitudinal direction of the steel truss as needed to adapt to the installation position of the cable carrying channel segment to be installed. The connecting assembly 42 is connected to the four columns 41 and extends horizontally to the bottom of the lifting assembly 2. The connecting assembly 42 includes a plurality of staggered longitudinal connectors 421 and transverse connectors 422, so that the structure of the second platform 4 is more stable. A plurality of second rollers 43 are arranged on the connecting assembly 42, and the axes of the plurality of second rollers 43 are parallel to the longitudinal direction of the steel truss. The plurality of second rollers 43 are used to move the cable carrying channel segment to be installed on the second platform 4, which is convenient for construction.

[0077] Also, see Figure 7 and Fig. 9 As shown, in order to further improve the structural stability of the second platform 4 , a web bar 44 may be provided under the connecting assembly 42 , and a reinforcing bar 45 may be provided between the columns 41 .

[0078] As an optional embodiment, the device for installing the steel truss cable carrying channel in the embodiment of the present invention is shown in FIG. Figure 3 As shown, the track 1, the lifting assembly 2 and the two first platforms 3 are all located on the side of the secondary truss brace between the steel truss beams close to the steel truss beams. Therefore, when the lifting assembly 2 and the two first platforms 3 move, they will not collide with the secondary truss brace between the steel truss beams.

[0079] As an optional embodiment, the device for installing the steel truss cable carrying channel in the embodiment of the present invention is shown in FIG. Figure 4 As shown, the lifting assembly 2 can select two electric hoists that are spaced apart.

[0080] As an optional embodiment, the device for installing the steel truss cable carrying channel in the embodiment of the present invention is shown in FIG. Figure 5As shown, when the cable carrying channel segments are installed on the lower ends of the upper cross beams of the steel trusses on the two first platforms 3, in order to ensure the stability of the construction of the two first platforms 3, temporary anchors 7 can be used to temporarily fix the first platforms 3 to the upper cross beams of the steel trusses.

[0081] In the description of the present invention, it should be noted that the terms "upper", "lower", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present invention. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0082] It should be noted that, in the present invention, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including 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 device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0083] The above description is only a specific embodiment of the present invention, so that those skilled in the art can understand or implement the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but should conform to the widest scope consistent with the principles and novel features of the present invention.

Claims

1. A device for installing a steel truss cable carrying channel, characterized in that: The device comprises: A track (1) arranged longitudinally along the steel truss and fixed to the lower end of the upper crossbeam of the steel truss; A lifting assembly (2) movably connected to the track (1) and capable of moving along the track (1), the lifting assembly (2) being used to lift a cable carrying channel segment to be installed; Two first platforms (3) are arranged at opposite sides of the lifting assembly (2) at a relative interval, the two first platforms (3) are both movably connected to the track (1) and can move along the track (1), and the two first platforms (3) are used to respectively receive two ends of the cable carrying channel segment to be installed lifted by the lifting assembly (2); The first platform (3) comprises a base (31), the base (31) being divided into a safety area (311) and a receiving area (312), the safety area (311) being used for construction workers to work, and the receiving area (312) being used to receive the cable carrying channel segment to be installed lifted by the lifting assembly (2); The first platform (3) comprises four suspension rods (32), one end of the four suspension rods (32) being connected to the base (31) and arranged at intervals to enclose the safety zone (311), and a guardrail (321) being connected between two adjacent suspension rods (32); The first platform (3) comprises four walking mechanisms (33) corresponding to the four suspension rods (32), the lower end of each walking mechanism (33) being connected to the upper end of the corresponding suspension rod (32), and the upper end of each walking mechanism (33) being movably connected to the track (1) and capable of moving along the track (1); The base (31) is provided with a plurality of spaced first rollers (34), and the axes of the plurality of first rollers (34) are all parallel to the longitudinal direction of the steel truss.

2. A device for installing a steel truss cable carrying channel as claimed in claim 1, characterized in that: The device also includes: The second platform (4) is detachably connected to the upper end of the lower cross beam of the steel truss, and the second platform (4) is used to transport the cable carrying channel segment to be installed to the bottom of the lifting assembly (2).

3. A device for installing a steel truss cable carrying channel as claimed in claim 2, characterized in that: The second platform (4) comprises: Four upright columns (41), the four upright columns (41) being detachably connected to the upper end of the lower cross beam of the steel truss and spaced apart to form a rectangle; A connecting assembly (42), the connecting assembly (42) being connected to the four upright posts (41) and extending transversely to just below the lifting assembly (2), the connecting assembly (42) comprising a plurality of staggered longitudinal connecting members and transverse connecting members; A plurality of spaced second rollers (43) are arranged on the connection assembly (42), and the axes of the plurality of second rollers (43) are parallel to the longitudinal direction of the steel truss.

4. A method for installing a steel truss cable carrying channel, using the device for installing a steel truss cable carrying channel according to claim 1, characterized in that: The method comprises the following steps: Step S1, using a lifting assembly (2) to lift a cable carrying channel segment to be installed, and then lowering the cable carrying channel segment so that both ends thereof fall on two first platforms (3) respectively; Step S2, using the two first platforms (3) as construction platforms, installing the cable carrying channel segment on the lower end of the upper cross beam of the steel truss; Step S3, moving the lifting assembly (2) and the two first platforms (3) along the track (1) to the installation position of the next cable carrying channel segment to be installed; Step S4, repeating steps S1 to S3 until all cable carrying channel segments are installed.

5. A method for installing a steel truss cable carrying channel as claimed in claim 4, characterized in that: The method further comprises the following steps: The cable carrying channel segment to be installed is transported to the position directly below the lifting assembly (2) using the second platform (4).

6. A method for installing a steel truss cable carrying channel as claimed in claim 4, characterized in that: In step S1, the lifting assembly (2) is used to lift a cable carrying channel segment to be installed, and then the cable carrying channel segment is lowered so that both ends thereof fall on two first platforms (3) respectively, comprising: Moving the two first platforms (3) so that the distance between the two first platforms (3) is larger than the cable carrying channel segment to be installed; Using a lifting assembly (2) to lift the cable carrying channel segment so that it passes between the two first platforms (3) and rises above the two first platforms (3); Then, the two first platforms (3) are moved so that the distance between the two first platforms (3) is smaller than the length of the cable carrying channel segment; The cable carrying channel segment is lowered so that its two ends fall on two first platforms (3) respectively.

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