A launching system and method for launching a slide beam

Abstract

The present application relates to a kind of lowering system and its lowering method for facilitating the lowering of slide beam, it includes: support body;Slide beam, the slide beam is installed on the top of the support body;Lowering device, the lowering device is installed on the support body, the lowering device can be moved up and down relative to the support body;Towing device, the towing device can horizontally tow the slide beam to the lowering device.The lowering system for facilitating the lowering of slide beam and its lowering method provided by the present application can be applied to the lowering of large mass slide beam, and the structure is relatively simple, the cost is lower, and the position of slide beam can be adjusted by towing device, to better lower slide beam.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of bridge construction, in particular to a lowering system facilitating lowering of a slide beam and a lowering method thereof. BACKGROUND

[0002] In recent years, with the overall advancement of traffic planning, the bridge construction industry in China has made breakthrough progress. Steel truss bridges have the advantages of lighter weight, convenient construction, large span capacity, and good overall structural stability, and are increasingly widely used in infrastructure construction. The span of steel truss bridges is gradually increasing, and the use of three-piece truss structures is becoming more and more common. When a steel beam crosses below a highway, railway, waterway, important building, or complex terrain, a push and slide construction is often used.

[0003] In related technologies, a bridge is often erected in the form of multi-point push and slide. When a temporary support pier is set in the middle span, the length of the cantilever of the large-span steel truss bridge is generally between 80m and 180m, and the maximum stress of a single truss at each support point is close to 3000t, which makes the slide beam below the support point very strong and capable of bearing a concentrated load of 3000t.

[0004] However, in order to bear a large amount of concentrated load, the weight of the slide beam is generally very large. After the steel truss bridge is pushed and slid into position, the slide beam is located between the steel truss beam and the top of the pier, and ordinary hoisting equipment is difficult to lower the slide beam. SUMMARY

[0005] The embodiments of the present application provide a lowering system facilitating lowering of a slide beam and a lowering method thereof, to solve the problem that ordinary hoisting equipment in related technologies is difficult to lower a slide beam with a large weight.

[0006] In a first aspect, a lowering system facilitating lowering of a slide beam is provided, including a support body, a slide beam installed on the top of the support body, a lowering device installed on the support body and movable up and down relative to the support body, and a traction device capable of horizontally pulling the slide beam to the lowering device.

[0007] In some embodiments, the traction device includes a first traction mechanism fixed to the support body, a first wire connected to the first traction mechanism, and an end of the first wire away from the first traction mechanism fixed to the slide beam, and the first traction mechanism is capable of driving the first wire to pull the slide beam to move in the longitudinal direction of the bridge.

[0008] In some embodiments, the first traction mechanism is detachably installed on the support body.

[0009] In some embodiments, the traction device includes a second traction mechanism, which is installed on the lowering device. The second traction mechanism is connected to a second strand, and one end of the second strand away from the second traction mechanism is fixed to the slide beam. The second traction mechanism can drive the second strand to pull the slide beam to the lowering device.

[0010] In some embodiments, the support body is fixed with a fixing portion, and the top surface of the fixing portion is flush with the top surface of the support body; the lowering device includes a lowering body and a lowering corbel, and the lowering corbel is installed at the bottom of the fixing portion, and the lowering body is fixedly connected to the lowering corbel; when the top surface of the lowering corbel is in contact with the bottom surface of the fixing portion, the lowering body is located on the side of the fixing portion, and the top surface of the lowering body is flush with the top surface of the fixing portion.

[0011] In some embodiments, the lowering device further includes a third traction mechanism, which is installed on a side of the support body close to the lowering body. The third traction mechanism is connected to a third strand, and one end of the third strand away from the third traction mechanism is fixed to the lowering body.

[0012] In some embodiments, the lowering system includes a plurality of support bodies spaced apart along the longitudinal direction of the bridge, the support bodies include two support piers spaced apart along the transverse direction of the bridge, a vertically extending activity space is formed between the two support piers, the lowering device is located in the activity space, the lowering device can move vertically, and the two sides of the lowering device are respectively connected to the two support piers.

[0013] In some embodiments, two lowering devices are provided on the support body, and the two lowering devices are spaced apart along the longitudinal direction of the bridge, and the distance between the two lowering devices is smaller than the length of the slide beam.

[0014] In a second aspect, a lowering method for facilitating the lowering of a slideway beam is provided, the lowering method comprising the following steps: a traction device horizontally pulls the slideway beam to the lowering device; the lowering device moves downward along the support body to lower the slideway beam.

[0015] In some embodiments, the step of the traction device horizontally pulling the slide beam to the lowering device includes the following steps: the first traction mechanism drives the first strand to pull the slide beam along the longitudinal bridge direction; the second traction mechanism drives the second strand to pull the slide beam along the transverse bridge direction to the lowering device.

[0016] The beneficial effects brought about by the technical solution provided by the present invention include:

[0017] The embodiment of the present application provides a lowering system convenient for lowering a slide beam. Since the lowering device can move up and down relative to the support body, the slide beam which is disassembled can be moved to the lowering device through the traction device, and the lowering of the slide beam is realized through the downward movement of the lowering device. The lowering device is installed on the support body, and the bottom of the slide beam can be supported on the top of the support body in the process of traction of the slide beam. The first traction device only provides a frictional force, and the slide beam does not need to be lifted, so that the load of the first traction device can be greatly reduced. In the lowering process, the slide beam moves vertically with the lowering device, the movement is relatively simple, and the force is relatively simple. The lowering can be realized through a continuous jack and the like, a crane is not needed, the space occupied is small, the structure is simple, and the system stability is high. Therefore, the lowering of the slide beam with large mass can be realized, the structure is relatively simple and the cost is low, and the position of the slide beam can be adjusted through the traction device, so that the slide beam is better lowered. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort.

[0019] Figure 1 A structure schematic diagram of a lowering system convenient for lowering a slide beam provided by the embodiment of the present application is shown in the figure.

[0020] Figure 2 A structure schematic diagram of a cross section of A-A in the figure is shown in the figure. Figure 1

[0021] A structure schematic diagram of a cross section of B-B in the figure is shown in the figure. Figure 3 Figure 1 A structure schematic diagram of a cross section of A-A when the slide beam moves to the lowering device is shown in the figure.

[0022] Figure 4 A structure schematic diagram of a cross section of A-A in the lowering process of the lowering device is shown in the figure.

[0023] Figure 5 A partial structure schematic diagram of the lowering device is shown in the figure.

[0024] Figure 6 In the figure:

[0025]

[0026] 1, support body; 11, support pier column; 12, activity space;

[0027] 2, slide beam; 21, first counterforce seat; 22, second counterforce seat;

[0028] ​​3, lowering device; 31, lowering body; 32, lowering bracket; 33, third traction mechanism; 34, third wire;

[0029] 4, traction device; 41, first traction mechanism; 42, first wire; 43, second traction mechanism; 44, second wire;

[0030] 5, fixed part;

[0031] 6, bent cap; 7, temporary support column. DETAILED DESCRIPTION

[0032] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the following will be combined with the drawings in the embodiments of the present application to make a clear and complete description of the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0033] The embodiments of the present application provide a lowering system and a lowering method for lowering a slide beam, which can solve the problem that ordinary hoisting equipment is difficult to lower a slide beam with large weight in the related art.

[0034] Referring to Figures 1 to 3 As shown in the figure, the lowering system for lowering a slide beam provided by the embodiments of the present application can include: a support body 1; a slide beam 2 installed on the top of the support body 1; a lowering device 3 installed on the support body 1, which can move up and down relative to the support body 1; and a traction device 4 which can horizontally pull the slide beam 2 to the lowering device 3. That is, the slide beam is horizontally pulled to the lowering device 3 by the traction device 4, and then the slide beam 2 is moved down from the top of the support body 1 by the lowering device 3 moving up and down along the support body 1 to realize the lowering of the slide beam 2. Only vertical movement is required during the lowering process, the stress is relatively simple, and the lowering of the slide beam 2 with large mass can be realized by a simple driving unit, which is low in cost and small in occupied space. Compared with lifting the slide beam 2, the horizontal movement of the slide beam 2 in the present application is realized by the traction device 4, a continuous jack can be used as a driving unit to drive the wire to pull the slide beam, since the slide beam 2 is pulled horizontally, the traction device 4 mainly overcomes the friction of the slide beam 2, and does not need to provide lifting force. Compared with a crane, a driving unit with smaller load can be selected, the cost is relatively lower, and the slide beam 2 can be moved out of the relatively complex construction environment by horizontal pulling, and then lowered by the lowering device 3. Compared with other lowering processes, the present application has a wider range of application.

[0035] Referring to Figure 1As shown, preferably, the traction device 4 includes a first traction mechanism 41, the first traction mechanism 41 is fixed to the support body 1, the first traction mechanism 41 is connected to a first strand 42, the end of the first strand 42 away from the first traction mechanism 41 is fixed to the slide beam 2, and the first traction mechanism 41 can drive the first strand 42 to pull the slide beam 2 to move along the longitudinal bridge direction. In other words, the position of the slide beam 2 in the longitudinal bridge direction can be adjusted by the first traction mechanism 41. In this embodiment, a first reaction seat 21 is provided on the slide beam 2, and the connection between the first traction mechanism 41 and the slide beam 2 is achieved by fixing the end of the first strand 42 away from the first traction mechanism 41 to the first reaction seat 21. See. Figure 1 As shown, a cap beam 6 is provided in the bridge. If the slide beam 2 is lowered directly vertically, it will be blocked by the cap beam 6 and cannot be lowered smoothly. In other embodiments, the bridge may also be provided with other structures that hinder the lowering of the slide beam 2 bracket. The first traction mechanism 41 is used to adjust the position of the slide beam 2 in the longitudinal direction of the bridge so that the slide beam 2 is offset from the cap beam 6 and other structures that hinder the lowering, and then the slide beam 2 is lowered by the lowering device 3. The scope of application of the lowering system is expanded, and the problem of the inconvenience of lowering the slide beam 2 on complex structure bridges is solved. In this embodiment, the first traction mechanism 41 is a continuous jack. In other embodiments, the first traction mechanism 41 can also be a winch or other method to pull the stranded wire to drive the slide beam 2 to move. The driving unit of the first traction mechanism 41 is not limited, as long as it can realize the function of pulling the first stranded wire 42.

[0036] See also Figure 1 As shown, preferably, the first traction mechanism 41 is detachably mounted on the support body 1. In this embodiment, since a second traction mechanism 43 is provided to pull the slide beam 2 in the transverse direction, the first traction mechanism 41 is configured as a detachable structure. During the process of pulling the slide beam 2 in the transverse direction, the first traction mechanism 41 can be disassembled to ensure smooth traction of the second traction mechanism 43. The disassembled first traction mechanism 41 can be used as the second traction mechanism 43, achieving the application of one traction unit in multiple sites and reducing construction costs. In this embodiment, the detachable connection of the first traction mechanism 41 is achieved by bolt connection.

[0037] See also Figures 2 to 5As shown, preferably, the traction device 4 comprises a second traction mechanism 43 installed on the lowering device 3, the second traction mechanism 43 is connected with a second wire 44, one end of the second wire 44 away from the second traction mechanism 43 is fixed on the slide beam 2, the second traction mechanism 43 can drive the second wire 44 to pull the slide beam 2 to the lowering device 3. That is, the slide beam adjusted in position is pulled to the lowering device 3 in the transverse direction of the bridge by the second traction mechanism 43, so as to lower the lowering device 3, in the embodiment, the lowering device 3 is arranged in the movable space 12 between the two support piers 11, in other embodiments, the lowering device 3 can be arranged at a suitable position according to the structure of the bridge, for example, the lowering device 3 is arranged on the side surface of the support body 1. Similar to the first traction mechanism 41, the second traction mechanism 43 can also be a continuous jack or a winch mechanism, as long as it can pull the second wire to drag the slide beam 2. In the embodiment, the second counterforce seat 22 is arranged on the slide beam 2, and one end of the second wire 44 away from the second traction mechanism 43 is fixed on the second counterforce seat 22, so as to realize the traction of the slide beam 2 by the second traction mechanism 43.

[0038] Referring to Figures 2 to 5 As shown, preferably, the support body 1 is fixed with a fixed part 5, the top surface of the fixed part 5 is flush with the top surface of the support body 1; the lowering device 3 comprises a lowering main body 31 and a lowering bracket 32, the lowering bracket 32 is installed on the bottom of the fixed part 5, and the lowering main body 31 is fixedly connected with the lowering bracket 32; when the top surface of the lowering bracket 32 is attached to the bottom surface of the fixed part 5, the lowering main body 31 is located on the side surface of the fixed part 5, and the top surface of the lowering main body 31 is flush with the top surface of the fixed part 5. That is, the top surface of the lowering device 3 is flush with the top surface of the support body 1, and the side surface of the lowering device 3 is attached to the side surface of the fixed part 5, so as to smoothly transition the slide beam 2 from the support body 1 to the lowering device 3 in the process of pulling the slide beam 2 by the traction device 4. In the embodiment, the lowering bracket 32 of the lowering device 3 can be directly welded on the bottom of the fixed part 5, and the lowering bracket 32 can also be fixedly connected with the bottom of the fixed part 5 by bolts, when the lowering device 3 needs to lower the slide beam 2, the separation of the lowering main body 31 and the support body 1 can be realized by cutting the gap between the fixed part 5 and the lowering bracket 32 or disassembling the connecting bolts. When the slide beam 2 does not need to be lowered, the lowering bracket 32 is fixedly connected with the fixed part 5, so as to avoid the deflection of the lowering device 3 due to gravity or other reasons before lowering, and the top surface of the lowering device 3 cannot be aligned with the top surface of the support body 1.

[0039] Referring to Figures 2 to 5As shown, preferably, the lowering device 3 further comprises a third traction mechanism 33, which is installed on one side of the support body 1 close to the lowering body 31, and the third traction mechanism 33 is connected with a third wire 34, and one end of the third wire 34 away from the third traction mechanism 33 is fixed to the lowering body 31. That is, in this embodiment, the lowering of the slide beam 2 is realized by traction, and in other embodiments, other lifting systems such as slide rails, pulley blocks, and hydraulic lifting systems can also be used as the lowering structure. Compared with other structures, the traction method occupies less space and has lower construction cost. The third traction mechanism 33 can be replaced by the second traction mechanism 43 which is removed. Before lowering, the lowering body 31 is fixed to the support body 1, and then the third traction mechanism 33 is installed on one side of the support body 1 close to the lowering body 31, and the third wire 34 connected with the third traction mechanism 33 is fixed to the lowering body 31. In this embodiment, the third traction mechanism 33 is fixed vertically to the fixed part, and the third wire 34 is fixed to the lowering body 31 from the central hole of the fixed part 5 or the side surface of the fixed part 5.

[0040] Referring to Figures 2 to 5 As shown, preferably, the lowering system comprises a plurality of support bodies 1 arranged at intervals along the longitudinal direction of the bridge, each support body 1 comprises two support piers 11 arranged at intervals along the transverse direction of the bridge, and a vertically extending movable space 12 is formed between the two support piers 11, the lowering device 3 is located in the movable space 12, the lowering device 3 can move vertically, and the two sides of the lowering device 3 are connected with the two support piers 11 respectively. That is, the lowering device 3 is arranged in the movable space 12 surrounded by the two support piers 11, and the lowering device 3 is connected with the two support piers 11 through the third wires 34 on both sides. Compared with arranging the lowering device 3 on one side of the support body 1 and fixing the lowering device 3 on one side only, connecting the two sides of the lowering device 3 with the support body 1 can improve the stability of the lowering process. And it will not affect the construction on both sides of the bridge. In this embodiment, a temporary support column 7 is also provided to support the slide beam 2 moving in the longitudinal direction of the bridge, so as to prevent the slide beam 2 from deflecting and falling during movement in the longitudinal direction of the bridge. In this embodiment, the lowering device 3 is also arranged on the temporary support column 7 to assist in supporting the slide beam 2.

[0041] Referring to Figures 1 to 5As shown, preferably, two of the lowering devices 3 are arranged on the support body 1, and the two lowering devices 3 are arranged along the longitudinal direction of the bridge and spaced apart from each other by a distance less than the length of the slide beam 2. That is, the slide beam 2 is lowered by the plurality of lowering devices 3, and the slide beam 2 is prevented from tilting and falling by the two lowering devices 3 in the case that the mass of the lowering device 3 is small. In the embodiment, the lowering device 3 can be arranged on a temporary support or a temporary pier in addition to being arranged on the pier of the bridge body, so as to provide support for lowering the slide beam 2. During the lowering process, the lowering distance of each lowering device 3 can be controlled to be equal, so as to prevent the slide beam 2 from tilting during the lowering process.

[0042] The embodiment of the present application also provides a lowering method for facilitating lowering of the slide beam, which utilizes the lowering system described above and comprises the following steps: horizontally pulling the slide beam 2 to the lowering device 3 by the traction device 4; and lowering the slide beam 2 by the lowering device 3 along the support body 1. That is, the slide beam 2 is first horizontally pulled to the outside of the lowering device 3, and then lowered by the lowering device 3. Compared with the hoisting machine, the traction device 4 is smaller in size, more suitable for bridge construction, and lower in cost.

[0043] Preferably, the step of horizontally pulling the slide beam 2 to the lowering device 3 by the traction device 4 comprises the following steps: driving the first wire 42 to move the slide beam 2 along the longitudinal direction of the bridge by the first traction mechanism 41; and driving the second wire 44 to pull the slide beam 2 to the lowering device 3 along the transverse direction of the bridge by the second traction mechanism 43. That is, the first traction mechanism 41 can be used to pull the slide beam 2 to be staggered with the cover beam 6 or other structures along the longitudinal direction of the bridge, so as to prevent the cover beam 6 or the related structures from hindering the lowering of the slide beam 2.

[0044] The principle of the lowering system for facilitating lowering of the slide beam and the lowering method thereof provided by the embodiment of the present application is as follows:

[0045] The slide beam 2 is horizontally pulled by the traction device 4, and then lowered vertically by the lowering device 3. Compared with the hoisting machine, the moving track of the slide beam 2 is relatively simple, and the space occupied is less. The lowering device 3 is only subjected to vertical force, and the traction device 4 is mainly subjected to horizontal force, so the stress of each driving unit of the lowering system is simple, the lowering work can be achieved by simple mechanisms, and the cost of lowering the slide beam 2 is reduced. The space occupied is smaller than that of the hoisting machine, and the construction is simpler.

[0046] In the description of the present application, it should be noted that the terms "upper", "lower", and the like are used for indicating the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood broadly, for example, can be fixed connection, can also be detachable connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0047] It should be noted that in the present application, relational terms such as "first" and "second" and the like are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus including a series of elements includes not only those elements, but also other elements not explicitly listed, or other elements inherent in such a process, method, article or apparatus. Without more limitations, the element defined by the statement "comprising a" does not exclude the presence of other identical elements in the process, method, article or apparatus including the element.

[0048] The above is only a specific embodiment of the present application, which enables those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features applied herein.

Claims

1. A lowering system for facilitating the lowering of a slideway beam, characterized in that: It includes: Support body (1); A slide beam (2), the slide beam (2) being mounted on the top of the support body (1); A lowering device (3), the lowering device (3) is mounted on the support body (1), and the lowering device (3) can move up and down relative to the support body (1); A traction device (4), wherein the traction device (4) can horizontally pull the slide beam (2) to the lowering device (3); The traction device (4) comprises a first traction mechanism (41), the first traction mechanism (41) is fixed to the support body (1), the first traction mechanism (41) is connected to a first strand (42), one end of the first strand (42) away from the first traction mechanism (41) is fixed to the slide beam (2), and the first traction mechanism (41) can drive the first strand (42) to pull the slide beam (2) to move along the longitudinal bridge direction; The support body (1) is fixed with a fixing portion (5), and the top surface of the fixing portion (5) is flush with the top surface of the support body (1); The lowering device (3) comprises a lowering body (31) and a lowering corbel (32), wherein the lowering corbel (32) is mounted on the bottom of the fixing portion (5), and the lowering body (31) is fixedly connected to the lowering corbel (32); When the top surface of the lowering corbel (32) is in contact with the bottom surface of the fixing portion (5), the lowering body (31) is located on the side of the fixing portion (5), and the top surface of the lowering body (31) is flush with the top surface of the fixing portion (5); The lowering bracket (32) is directly welded or bolted to the bottom of the fixing portion (5), and when the lowering device (3) lowers the slideway beam (2), the lowering body (31) and the support body (1) are separated by cutting the gap between the fixing portion (5) and the lowering bracket (32) or removing the connecting bolts; The lowering device (3) further comprises a third traction mechanism (33), the third traction mechanism (33) being mounted on a side of the support body (1) close to the lowering body (31), the third traction mechanism (33) being connected to a third strand (34), and one end of the third strand (34) away from the third traction mechanism (33) being fixed to the lowering body (31); A temporary support column (7) is also provided to support the slideway beam (2) moving in the longitudinal direction of the bridge, and the lowering device (3) is provided on the temporary support column (7).

2. The system for lowering a slideway beam according to claim 1, wherein: The first traction mechanism (41) is detachably mounted on the support body (1).

3. The system for lowering a slideway beam according to claim 1, wherein: The traction device (4) includes a second traction mechanism (43), the second traction mechanism (43) is installed on the lowering device (3), the second traction mechanism (43) is connected to a second strand (44), one end of the second strand (44) away from the second traction mechanism (43) is fixed to the slide beam (2), and the second traction mechanism (43) can drive the second strand (44) to pull the slide beam (2) to move to the lowering device (3).

4. The system for lowering a slideway beam according to claim 1, wherein: The lowering system comprises a plurality of support bodies (1) spaced apart along the longitudinal direction of the bridge, the support body (1) comprising two support piers (11) spaced apart along the transverse direction of the bridge, a vertically extending activity space (12) is formed between the two support piers (11), the lowering device (3) is located in the activity space (12), the lowering device (3) is movable in the vertical direction, and the two sides of the lowering device (3) are respectively connected to the two support piers (11).

5. The lowering system for facilitating lowering of a slideway beam according to claim 1, characterized in that: Two lowering devices (3) are provided on the support body (1), and the two lowering devices (3) are spaced apart along the longitudinal direction of the bridge, and the distance between the two lowering devices (3) is smaller than the length of the slide beam (2).

6. A method for lowering a slideway beam, characterized in that: Utilizing the lowering system according to claim 1, the lowering method comprises the following steps: The traction device (4) horizontally pulls the slide beam (2) to the lowering device (3); The lowering device (3) moves downward along the supporting body (1) to lower the slideway beam (2).

7. The lowering method according to claim 6, wherein: The step of the traction device (4) horizontally traction the slideway beam (2) to the lowering device (3) comprises the following steps: The first traction mechanism (41) drives the first strand (42) to move along the longitudinal bridge toward the traction slideway beam (2); The second traction mechanism (43) drives the second strand (44) to pull the slideway beam (2) to the lowering device (3) along the transverse direction of the bridge.

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