Vertical supporting device for steel truss girder incremental launching construction

Abstract

The utility model discloses a vertical supporting device for steel truss girder incremental launching construction. The vertical supporting device for steel truss girder incremental launching construction comprises a lifting cushion base, a jacking mechanism and a supporting mechanism. A slot with an upward opening is formed in the top of the dip pad base; the jacking mechanism is installed in the inserting groove and is configured to stretch out and draw back in the height direction. The supporting mechanism comprises a lifting cushion block, and a steel plate and a wood plate which are crosswise arranged at the top of the lifting cushion block in the height direction; wherein the lifting cushion block is connected to the top of the jacking mechanism. In the pushing process of the steel truss girder bridge, the vertical supporting device for pushing construction of the steel truss girder bridge can quickly increase the height, can save manpower and improves the construction efficiency of the steel truss girder bridge.

Description

Technical Field

[0001] The present application relates to the technical field of building construction, and in particular to a vertical support device for steel truss beam jacking construction. Background Art

[0002] A steel truss bridge is a frame structure consisting of a series of parallel longitudinal beams, connected by crossbeams and diagonal braces. Steel truss bridges are widely used due to their simple structure, good stability, and light weight. In the construction of steel truss bridges, jacking is a common method. This method pre-assembles and adjusts the entire truss using a temporary support structure, and then uses hydraulic jacking machinery to push the entire bridge into the desired position.

[0003] During the jacking process of steel truss bridges, the existing cushion structure needs to be constructed in a cross-laying order of steel plates and formwork, which makes the installation of the cushion structure after jacking time-consuming and labor-intensive, thereby reducing construction efficiency. Summary of the Invention

[0004] The embodiment of the present application solves the technical problem in the prior art that the existing cushion structure needs to be constructed in the order of cross-laying steel plates and templates, which makes the installation of the cushion structure after jacking time-consuming and labor-intensive, by providing a vertical support device for steel truss jacking construction.

[0005] An embodiment of the present application provides a vertical support device for steel truss jacking construction, comprising: a pad base, a top of which is provided with a slot with an upward opening; a jacking mechanism, which is installed in the slot and is configured to extend and retract in the height direction; a support mechanism, which includes a pad block, and a steel plate and a wooden plate cross-arranged on the top of the pad block in the height direction; wherein the pad block is connected to the top of the jacking mechanism.

[0006] In one possible implementation, the lifting mechanism includes at least one jack and a connecting plate; the connecting plate is located above the shoveling pad base, and the support mechanism is connected to the top surface of the connecting plate; the at least one jack is installed in the slot, and the moving end of the at least one jack is connected to the bottom surface of the connecting plate and is configured to drive the connecting plate to move in the height direction.

[0007] In one possible implementation, the jacking mechanism further includes a guide assembly connected to the connecting plate; the shoveling pad base is provided with a guide structure adapted to the guide assembly; the guide assembly is connected to the connecting plate, the guide assembly is at least partially located inside the guide structure, and when the at least one jack drives the connecting plate to move, the guide structure limits the movement direction of the guide assembly to the height direction.

[0008] In one possible implementation, the guide structure includes at least one guide groove; the guide assembly includes at least one guide rod arranged along the height direction, one end of the at least one guide rod is connected to the connecting plate and is at least partially located in the at least one guide groove; wherein, the at least one guide groove limits the movement direction of the at least one guide rod to the height direction.

[0009] In a possible implementation, the guide assembly further includes a guide block disposed on the bottom surface of the connecting plate; the guide block is at least partially located in the slot.

[0010] In a possible implementation, the jacking mechanism further includes a fixing assembly arranged on the top surface of the connecting plate; the bottom of the pad block is a rectangular structure, and the fixing assembly includes two first limiting plates arranged in parallel, and a second limiting plate and a third limiting plate arranged in parallel; wherein, both ends of the second limiting plate and both ends of the third limiting plate are vertically connected to the two first limiting plates.

[0011] In a possible implementation, both ends of the second limiting plate and / or both ends of the third limiting plate are detachably connected to the two first limiting plates.

[0012] In one possible implementation, the vertical support device for steel truss jacking construction also includes at least one support column, which is arranged in the slot along the height direction, and the top of the at least one support column is flush with the top of the at least one jack at a low height.

[0013] The technical solutions provided in the embodiments of this application have at least the following technical effects:

[0014] The present invention provides a vertical support device for steel truss girder jacking construction, comprising a pad base, a lifting mechanism, and a support mechanism. The pad base has an upwardly opening slot at its top; the lifting mechanism is installed in the slot and is configured to extend and retract in the vertical direction; the support mechanism comprises a pad block, and steel plates and wooden boards arranged crosswise on top of the pad block in the vertical direction; the pad block is connected to the top of the lifting mechanism. During the jacking process of a steel truss bridge, when the vertical support device for steel truss girder jacking construction is used to replace the existing pad structure, the lifting mechanism is controlled to lift the support mechanism, and then a temporary pad is used to support the structure on the support mechanism on the pad base. The lifting mechanism is then controlled to lower the support mechanism, and then steel plates or wooden boards are added to the pad block. This allows the vertical support device for steel truss girder jacking construction to quickly increase in height, saves manpower, and improves the construction efficiency of steel truss bridges. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following is a brief introduction to the drawings required for use in the description of the embodiments of the present application. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0016] Figure 1 A schematic structural diagram of a vertical support device for steel truss girder jacking construction provided in an embodiment of the present application;

[0017] Figure 2 A schematic structural diagram of a pad base provided in an embodiment of the present application;

[0018] Figure 3 and Figure 4 Schematic diagrams of the structures of the connecting plate, the guide assembly, and the fixing assembly provided in the embodiments of the present application at different viewing angles;

[0019] Figure 5 A schematic structural diagram of the support mechanism provided in an embodiment of the present application.

[0020] Description of reference numerals:

[0021] 100-scraping pad base; 110-slot; 120-guide structure; 121-guide groove; 200-lifting mechanism; 210-jack; 220-connecting plate; 230-guide assembly; 231-guide rod; 240-guide block; 250-fixing assembly; 251-first limit plate; 252-second limit plate; 253-third limit plate; 300-support mechanism; 310-scraping pad block; 320-steel plate; 330-wooden board; 400-support column. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0023] In the description of the embodiments of the present application, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present application. The terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, 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 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 embodiments of the present application can be understood according to the specific circumstances.

[0024] The embodiment of the present application provides a vertical support device for steel truss beam jacking construction, such as Figures 1 to 5 As shown, the vertical support device for steel truss girder jacking construction includes a pad base 100, a jacking mechanism 200 and a support mechanism 300.

[0025] The top of the sling base 100 is provided with an upward-opening slot 110. The lifting mechanism 200 is mounted within the slot 110 and is configured to extend and retract in the vertical direction. The support mechanism 300 comprises a sling block 310, as well as a steel plate 320 and a wooden board 330 arranged vertically across the top of the sling block 310. The sling block 310 is connected to the top of the lifting mechanism 200. When the lifting mechanism 200 extends and retracts in the vertical direction, it drives the sling block 310 up and down.

[0026] During the jacking process of a steel truss bridge, when the vertical support device for steel truss jacking construction is used to replace the existing pad structure, the jacking mechanism 200 is controlled to jack up the support mechanism 300, and then a temporary pad is used to support the structure on the support mechanism 300 on the pad base 100. Then, the jacking mechanism 200 is controlled to drive the support mechanism 300 to descend, and then a steel plate 320 or a wooden board 330 is added to the pad block 310, thereby enabling the vertical support device for steel truss jacking construction to quickly increase its height, save manpower, and improve the construction efficiency of the steel truss bridge.

[0027] like Figure 1 and Figure 2As shown, in the embodiment of the present application, the lifting mechanism 200 includes at least one jack 210 and a connecting plate 220. The connecting plate 220 is located above the pad base 100, and the support mechanism 300 is connected to the top surface of the connecting plate 220. At least one jack 210 is installed in the slot 110, and the moving end of at least one jack 210 is connected to the bottom surface of the connecting plate 220 and is configured to drive the connecting plate 220 to move in the height direction. For example, Figure 2 The bottoms of the two jacks 210 are installed on the bottom surface of the slot 110 , and the tops of the two jacks 210 are connected to the bottom surface of the connecting plate 220 .

[0028] When the support mechanism 300 needs to be raised, the construction worker operates the jack 210 to extend the jack 210, and the top of the jack 210 drives the support mechanism 300 to move upward; when the support mechanism 300 needs to be lowered, the construction worker operates the jack 210 to shorten the jack 210, and the top of the jack 210 drives the support mechanism 300 to move downward.

[0029] Furthermore, in the embodiments of the present application, Figure 1 As shown, the lifting mechanism 200 further includes a guide assembly 230, which is connected to the connecting plate 220; Figure 2 As shown, the mat base 100 is provided with a guide structure 120 adapted to a guide assembly 230. The guide assembly 230 is connected to the connecting plate 220. The guide assembly 230 is at least partially located within the guide structure 120. When the at least one jack 210 drives the connecting plate 220 to move, the guide structure 120 limits the movement direction of the guide assembly 230 to the height direction.

[0030] When the jack 210 drives the support mechanism 300 to move in the height direction through the connecting plate 220, the guide assembly 230 moves in the height direction along with the connecting plate 220. The guide structure 120 can limit the movement direction of the guide assembly 230 so that the movement direction of the guide assembly 230 is only in the height direction, thereby causing the support mechanism 300 to move only in the height direction, thereby avoiding lateral displacement of the support mechanism 300 during movement.

[0031] Specifically, the guide structure 120 includes at least one guide groove 121; the guide assembly 230 includes at least one guide rod 231 arranged along the height direction, one end of at least one guide rod 231 is connected to the connecting plate 220, and is at least partially located in at least one guide groove 121; wherein, at least one guide groove 121 limits the movement direction of at least one guide rod 231 to the height direction.

[0032] When the connecting plate 220 drives the guide rod 231, the side wall of the guide groove 121 limits the guide rod 231 so that the guide rod 231 can only move in the height direction, and thus the support mechanism 300 arranged on the top surface of the connecting plate 220 is limited to move only in the height direction.

[0033] Illustratively, the guide structure 120 includes three guide rods 231 disposed on a first side of the connecting plate 220, and three guide rods 231 disposed on a second side opposite to the first side. Accordingly, three guide grooves 121 adapted to the three guide rods 231 are disposed on opposite side surfaces of the mat base 100.

[0034] Reference Figure 4 In the embodiment of the present application, the guide assembly 230 further includes a guide block 240 disposed on the bottom surface of the connecting plate 220. The guide block 240 is at least partially located within the slot 110. When the connecting plate 220 moves in the height direction, the sidewalls of the slot 110 constrain the guide block 240, restricting the guide block 240 in at least two opposite lateral directions, further ensuring that the support mechanism 300 does not deviate laterally.

[0035] like Figure 1 and Figure 3 As shown, in the embodiment of the present application, the lifting mechanism 200 further includes a fixing assembly 250 disposed on the top surface of the connecting plate 220. The bottom of the shoveling pad 310 is a rectangular parallelepiped structure. The fixing assembly 250 includes two parallel first limiting plates 251, and a parallel second limiting plate 252 and a third limiting plate 253. The ends of the second limiting plate 252 and the ends of the third limiting plate 253 are both perpendicularly connected to the two first limiting plates 251.

[0036] The sling block 310 is connected to the connecting plate 220 via the aforementioned fixing assembly 250. Specifically, the sling block 310 is placed on the top surface of the connecting plate 220. The first, second, and third limiting plates 251, 252, and 253 are positioned against the bottom of the sling block 310, clamping and securing the sling block 310 horizontally. When the connecting plate 220 moves vertically, the sling block 310 moves with it. The first, second, and third limiting plates 251, 252, and 253 prevent the sling block 310 from shifting during movement, thereby ensuring that the position supported by the support mechanism 300 remains unchanged. This ensures a more accurate pushing process and prevents the support mechanism 300 from falling off the connecting plate 220.

[0037] Specifically, both ends of the second limiting plate 252 and / or both ends of the third limiting plate 253 are detachably connected to the two first limiting plates 251. That is, Figure 3The two ends of the third limiting plate 253 shown are detachably connected to the two first limiting plates 251; alternatively, the two ends of the second limiting plate 252 can be detachably connected to the two first limiting plates 251; alternatively, the two ends of the third limiting plate 253 and the two ends of the second limiting plate 252 are both detachably connected to the two first limiting plates 251.

[0038] Of course, in other embodiments of the present application, the pad block 310 is connected to the top surface of the connecting plate 220 by welding, bonding, bolting, etc.

[0039] like Figure 1 and Figure 2 As shown, the vertical support device for steel truss jacking construction provided in the embodiment of the present application also includes at least one support column 400, at least one support column 400 is arranged in the slot 110 along the height direction, and the top of at least one support column 400 is flush with the top of at least one jack 210 at a low height.

[0040] When the jacks drive the connecting plate to its lowest position, construction workers add steel or wooden plates to the pads. The tops of the support columns now support the connecting plate, keeping it stable. For example, two jacks are installed in the slots, and two support columns are positioned vertically within the slots, one on each side of the two jacks.

[0041] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other. Each embodiment focuses on the differences from other embodiments.

[0042] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit the present application. Although the present application has been described in detail with reference to the aforementioned embodiments, a person of ordinary skill in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some or all of the technical features therein can be replaced by equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the present application.

Claims

1. A vertical support device for steel truss girder jacking construction, characterized in that: include: A pad base, wherein a slot with an upward opening is provided on the top of the pad base; a lifting mechanism, the lifting mechanism being installed in the slot and configured to extend and retract in a height direction; The supporting mechanism includes a pad block, and a steel plate and a wooden plate cross-arranged on the top of the pad block in the height direction; wherein the pad block is connected to the top of the jacking mechanism.

2. The vertical support device for steel truss girder jacking construction according to claim 1 is characterized in that: The jacking mechanism includes at least one jack and a connecting plate; The connecting plate is located above the pad base, and the supporting mechanism is connected to the top surface of the connecting plate; The at least one jack is installed in the slot, and the moving end of the at least one jack is connected to the bottom surface of the connecting plate and is configured to drive the connecting plate to move in the height direction.

3. The vertical support device for steel truss girder jacking construction according to claim 2, characterized in that: The lifting mechanism further includes a guide assembly, wherein the guide assembly is connected to the connecting plate; The pad base is provided with a guide structure adapted to the guide assembly; The guide assembly is connected to the connecting plate, and the guide assembly is at least partially located inside the guide structure. When the at least one jack drives the connecting plate to move, the guide structure limits the movement direction of the guide assembly to the height direction.

4. The vertical support device for steel truss girder jacking construction according to claim 3, characterized in that: The guide structure includes at least one guide groove; The guide assembly includes at least one guide rod arranged along the height direction, one end of the at least one guide rod is connected to the connecting plate and is at least partially located in the at least one guide groove; Wherein, the at least one guide groove limits the movement direction of the at least one guide rod to be the height direction.

5. The vertical support device for steel truss girder jacking construction according to claim 4, characterized in that: The guide assembly further includes a guide block provided on the bottom surface of the connecting plate; The guide block is at least partially located within the slot.

6. The vertical support device for steel truss girder jacking construction according to claim 2, characterized in that: The jacking mechanism further includes a fixing assembly provided on the top surface of the connecting plate; The bottom of the pad block is a rectangular parallelepiped structure, and the fixing assembly includes two first limiting plates arranged in parallel, and a second limiting plate and a third limiting plate arranged in parallel; Wherein, both ends of the second limiting plate and both ends of the third limiting plate are vertically connected to the two first limiting plates.

7. The vertical support device for steel truss girder jacking construction according to claim 6, characterized in that: Both ends of the second limiting plate and / or both ends of the third limiting plate are detachably connected to the two first limiting plates.

8. The vertical support device for steel truss girder jacking construction according to claim 2, characterized in that: It also includes at least one supporting column, which is arranged in the slot along the height direction, and the top of the at least one supporting column is flush with the top of the at least one jack when it is at a low height.

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