A steel truss beam falling beam construction tool and a falling beam construction method

Abstract

The present application relates to a kind of steel truss beam falling beam construction frock and falling beam construction method, the frock includes steel truss beam, support seat, riser, L-type rod, horizontal plate, connecting rod, plug-in block, backing plate and gap;Steel truss beam bottom is equipped with support seat, support seat front end has jacking part, rear end is equipped with riser, riser connects L-type rod and horizontal plate, horizontal plate end is connected with connecting rod, connecting rod lower surface is equipped with plug-in block, support seat is stacked backing plate, and backing plate one side is opened gap, L-type rod end is fixed vertical rod, vertical rod is inserted into gap and one end is inserted into support seat, the steps of the construction method are as follows: jacking part lifts steel truss beam and removes part of backing plate, then makes steel truss beam fall, plug-in block is inserted into stable hole, steel truss beam holds L-type rod and drives riser to fall, vertical rod is synchronously fallen and rubber strip stabilizes backing plate, telescopic block is pushed by hydraulic oil and is driven to hold plate and is tightly inserted into plug-in slot.Steel truss beam end is limited between L-type rod and connecting rod, and riser only elevates and lowers along plug-in slot, and it is stable in multidimension, avoids falling beam deviation.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of beam construction, in particular to a steel truss beam construction tool and a beam construction method. BACKGROUND

[0002] The steel truss bridge is a structure form in which a solid-web steel plate bridge is hollowed according to certain rules, and the structure as a whole is in a beam stress mode, i.e., mainly bearing bending moment and shear force. The steel truss bridge is composed of a braking connection system, a bridge deck, a support and a pier (abutment).

[0003] In the prior art, when the steel truss beam is constructed, the steel truss beam is jacked up by a jacking device, and the steel plate at the bottom of the steel truss beam is pulled out. After multiple operations, the steel truss beam is lowered on the support base.

[0004] However, since the steel truss beam does not have a stable structure during the jacking and lowering process, the steel truss beam may deviate during the jacking and lowering process, affecting the accuracy of the position of the steel truss beam. SUMMARY

[0005] The present application aims to provide a steel truss beam construction tool and a beam construction method to solve the problems in the background art.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a steel truss beam construction tool, comprising:

[0007] A steel truss beam, wherein the bottom front end of the steel truss beam is provided with a plurality of stabilizing holes;

[0008] A support base, wherein the front end of the support base is fixed with a jacking piece, and the rear end is provided with a limiting assembly;

[0009] The limiting assembly comprises a vertical plate, the two side faces of the vertical plate are respectively connected with L-shaped rods, a horizontal plate is inserted on the front side face, the end of the horizontal plate is connected with a connecting rod, and the lower surface of the connecting rod is provided with an insertion block;

[0010] A plurality of spacers are stacked on the surface of the support base, and a notch is formed on one side of the spacer; an L-shaped rod is fixed to the end of the vertical rod, one end of the vertical rod is movably inserted into the support base, and the other end is inserted into the notch.

[0011] Preferably, a plurality of rubber strips are arranged on the outer circumferential surface of the vertical rod, and the rubber strips abut against the inner wall of the notch.

[0012] Preferably, an insertion slot is formed on the surface of the support base, the vertical plate is inserted into the insertion slot and can move up and down along the insertion slot, a spring is connected to the bottom of the vertical plate, and the other end of the spring is connected to the bottom wall of the insertion slot.

[0013] Preferably, the vertical plate surface is provided with a through groove, the horizontal plate is inserted into the through groove and can move horizontally along the through groove; the horizontal plate surface is connected with an elastic rod, the other end of the elastic rod is connected to the vertical plate surface, and the elastic rod exerts a pulling force on the horizontal plate, so that the horizontal plate drives the connecting rod to move towards the steel truss.

[0014] Preferably, the connecting rod is internally provided with a plurality of pushing air cylinders, the output ends of the pushing air cylinders are connected with the plug-in blocks, and the plug-in blocks can be plugged into the stabilizing holes of the steel truss.

[0015] Preferably, the vertical rod is synchronously lifted with the L-shaped rod and the vertical plate, and one end of the vertical rod inserted into the support seat can move along the inside of the support seat.

[0016] Preferably, the L-shaped rod surface is slidingly inserted with a telescopic block, the inside of the L-shaped rod and the inside of the vertical plate are both filled with hydraulic oil and are connected with each other to form a closed hydraulic channel; the vertical plate surface is slidingly inserted with a supporting plate, and one end of the supporting plate is located in the inside of the vertical plate.

[0017] Preferably, when the telescopic block slides towards the inside of the L-shaped rod, the hydraulic oil is extruded, the hydraulic oil flows into the inside of the vertical plate along the closed hydraulic channel and pushes the supporting plate to extend out of the vertical plate, and after the supporting plate extends out, the supporting plate abuts against the inner wall of the plug-in slot.

[0018] The application also provides a beam lowering construction method based on the above-mentioned steel truss beam lowering construction tool.

[0019] Step one: plug-in positioning

[0020] Place the two ends of the steel truss on the top of the jacking member of the corresponding support seat, extend the jacking member to jack up the steel truss, and remove the part of the pad plate on the surface of the support seat;

[0021] Control the jacking member to contract to slowly lower the steel truss, the end of the steel truss pushes the connecting rod, drives the horizontal plate to slide along the through groove of the vertical plate and stretches the elastic rod;

[0022] When the plug-in block on the connecting rod is aligned with the stabilizing hole of the steel truss, start the pushing air cylinder to drive the plug-in block to be inserted into the stabilizing hole;

[0023] Step two: stabilize the beam lowering

[0024] Continue to control the jacking member to contract, the bottom of the end of the steel truss contacts the top of the L-shaped rod, and drives the L-shaped rod and the vertical plate to lower along the plug-in slot and compress the spring at the bottom of the vertical plate;

[0025] When the vertical plate lowers, the vertical rod lowers along the gap of the pad plate synchronously, and the rubber strip on the outer periphery of the vertical rod abuts against the inner wall of the gap, so that the pad plate is stabilized on the outer periphery of the vertical rod;

[0026] In the falling process of the L-shaped rod, the telescopic block slides to the inside of the L-shaped rod under the pushing of the inner wall of the gap, extruding the hydraulic oil to flow into the inside of the vertical plate along the closed hydraulic channel, pushing the holding plate to extend and tightly abutting the inner wall of the insertion slot, fixing the position of the vertical plate.

[0027] At this time, the end of the steel truss is limited between the L-shaped rod and the connecting rod, and the vertical plate can only be lifted and lowered along the insertion slot, realizing the stable falling of the steel truss.

[0028] Compared with the prior art, the beneficial effects of the present application are:

[0029] The two ends of the steel truss are located at the top of the jacking piece, the steel truss is jacked up through the jacking piece, and the gasket plate is pulled out, so that the steel truss is held at the end of the connecting rod in the falling process, the elastic rod is stretched, the connecting rod moves to the bottom of the steel truss, and the insertion block is inserted into the stabilizing hole, the steel truss is held at the top of the L-shaped rod in the falling process, the vertical plate falls with the steel truss, the vertical rod falls in the gap, and the surface of the vertical rod is provided with a rubber strip, so that the gasket plate is stably arranged on the surface of the vertical rod. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 It is a schematic diagram of the three-dimensional structure of the present application.

[0031] Figure 2 It is a schematic diagram of the steel truss structure of the present application.

[0032] Figure 3 It is a schematic diagram of the support seat structure of the present application.

[0033] Figure 4 It is a schematic diagram of the support seat structure of the present application.

[0034] Figure 5 It is a schematic diagram of the support seat structure of the present application.

[0035] Figure 6 It is Figure 5 It is an enlarged schematic diagram of the structure at A.

[0036] In the drawing: steel truss 1, support seat 2, support rod 3, stabilizing hole 4, jacking piece 5, insertion block 6, horizontal plate 7, vertical plate 8, connecting rod 9, L-shaped rod 10, gasket plate 11, gap 12, spring 13, insertion slot 14, holding plate 15, telescopic block 16, vertical rod 17, rubber strip 18, elastic rod 19, through slot 20. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical scheme of the present application, and the advantages are clearer, more complete and clearer, the embodiments of the present application are further described in detail below with reference to the drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present application, rather than all embodiments, and are used to explain the embodiments of the present application, and do not limit the embodiments of the present application. All other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0038] Please refer to Figures 1 to 6 The present application provides a technical scheme:

[0039] Embodiment 1: a steel truss beam construction tool, comprising a steel truss beam 1, a plurality of stable holes 4 are arranged at the front end of the bottom of the steel truss beam 1, and a support seat 2 is arranged at the bottom; a jacking piece 5 is fixed at the front end of the support seat 2, the jacking piece 5 can drive the steel truss beam 1 to rise and fall, a limiting assembly is arranged at the rear end of the support seat 2, a plug-in slot 14 is arranged on the surface of the support seat 2, a vertical plate 8 is inserted in the plug-in slot 14, the vertical plate 8 can move up and down along the plug-in slot 14, a spring 13 is connected to the bottom of the vertical plate 8, and the other end of the spring 13 is connected to the bottom wall of the plug-in slot 14; the vertical plate 8 is a limiting core, L-shaped rods 10 are arranged on the two sides of the vertical plate 8 respectively, a through slot 20 is arranged on the front side, a horizontal plate 7 is inserted in the through slot 20, the horizontal plate 7 can move horizontally along the through slot 20, a spring rod 19 is connected to the surface of the horizontal plate 7, the other end of the spring rod 19 is connected to the surface of the vertical plate 8, the spring rod 19 exerts a pulling force on the horizontal plate 7, so that the horizontal plate 7 drives a connecting rod 9 connected to the end to move towards the steel truss beam 1; an insertion block 6 is arranged on the lower surface of the connecting rod 9, a plurality of push air cylinders are arranged in the connecting rod 9, the output ends of the push air cylinders are connected to the insertion block 6, and the insertion block 6 can be driven to be inserted into the stable hole 4 of the steel truss beam 1; a plurality of cushion plates 11 are stacked on the surface of the support seat 2, and a notch 12 is arranged on one side of the cushion plate 11; a vertical rod 17 is fixed to the end of the L-shaped rod 10, one end of the vertical rod 17 is movably inserted into the support seat 2, the other end of the vertical rod 17 is inserted into the notch 12, the vertical rod 17 moves up and down synchronously with the L-shaped rod 10 and the vertical plate 8, a plurality of rubber strips 18 are arranged on the outer circumferential surface of the vertical rod 17, and the rubber strips 18 abut against the inner wall of the notch 12, so that the cushion plate 11 can be stably arranged on the surface of the vertical rod 17; the end of the steel truss beam 1 is located between the L-shaped rod 10 and the connecting rod 9, after the steel truss beam 1 is driven to rise and fall by the jacking piece 5 and is separated from the cushion plate 11, the steel truss beam 1 falls to the end of the L-shaped rod 10, the vertical plate 8 is lowered to compress the spring 13, the insertion block 6 is inserted into the stable hole 4, and the vertical rod 17 and the rubber strip 18 stably arrange the cushion plate 11, so that the steel truss beam 1 is stably lowered.

[0040] In the embodiment 2, the telescopic block 16 is slidably inserted on the surface of the L-shaped rod 10, the inside of the L-shaped rod 10 and the inside of the vertical plate 8 are filled with hydraulic oil and are in communication to form a closed hydraulic passage, the top-holding plate 15 is slidably inserted on the surface of the vertical plate 8 and is located in the inside of the vertical plate 8 at one end, when the steel truss 1 drives the L-shaped rod 10 to descend, the telescopic block 16 is pushed by the inner wall of the notch 12 of the base plate 11, slides to the inside of the L-shaped rod 10 and extrudes the hydraulic oil, the hydraulic oil flows into the inside of the vertical plate 8 along the closed hydraulic passage, drives the top-holding plate 15 to extend out of the vertical plate 8, the surface of the top-holding plate 15 abuts against the inner wall of the insertion slot 14 to further fix the position of the vertical plate 8, the rest structure is the same as that of the embodiment 1, the original positioning structure is locked by the hydraulic pressure, the displacement of the steel truss 1 is more stably limited, and the steel truss 1 is suitable for the requirements of heavy load or large-span steel truss beam lowering.

[0041] Working principle: during the beam lowering construction, the two ends of the steel truss 1 are first placed on the top of the jacking part 5 of the support seat 2, the steel truss 1 is jacked up by the jacking part 5, a suitable extraction distance is provided between the base plate 11 and the jacking part 5, the base plate 11 can be extracted after being inclined by the hoisting equipment, the jacking part 5 is controlled to shrink to slowly lower the steel truss 1, the steel truss 1 is supported at the end of the connecting rod 9 during the lowering process, the elastic rod 19 is stretched, and the connecting rod 9 moves along the through slot 20 to the front end top of the steel truss 1 along with the horizontal plate 7; since one end of the insertion block 6 located in the inside of the connecting rod 9 is connected with the pushing air cylinder and a plurality of insertion blocks 6 are connected with the pushing air cylinder, the plurality of insertion blocks 6 are extended out of the inside of the connecting rod 9 by starting the pushing air cylinder, and then the insertion block 6 is inserted into the stable hole 4 of the steel truss 1, the horizontal positioning is completed; the jacking part 5 is continuously controlled to shrink, the steel truss 1 is lowered and supported on the top of the L-shaped rod 10, the vertical plate 8 is lowered along with the steel truss 1 in the insertion slot 14, the vertical rod 17 is lowered in the notch 12 at the same time, and the rubber strip 18 on the surface of the vertical rod 17 abuts against the inner wall of the notch 12, so that the base plate 11 is stabilized on the surface of the vertical rod 17; at this time, the end of the steel truss 1 is located between the L-shaped rod 10 and the connecting rod 9, and the vertical plate 8 can only move up and down along the insertion slot 14, the stability of the steel truss 1 can be preliminarily maintained; if the embodiment 2 is implemented, when the L-shaped rod 10 is lowered, the telescopic block 16 is pushed by the inner wall of the notch 12, so that the telescopic block 16 is inserted into the inside of the L-shaped rod 10, since the inside of the L-shaped rod 10 and the inside of the vertical plate 8 are cavities and are filled with hydraulic oil, the hydraulic oil moves along the closed hydraulic passage under the pushing of the telescopic block 16, and then drives the top-holding plate 15 to extend out of the inside of the vertical plate 8, the surface of the top-holding plate 15 abuts against the inner wall of the insertion slot 14 to stabilize the position of the vertical plate 8, the stability of the steel truss 1 is further maintained, and finally the precise beam lowering of the steel truss 1 is realized.

[0042] While the forgoing detailed description of the application has shown specific embodiments of the application, it is to be understood that changes and modifications can be made to the specific embodiments without departing from the spirit and scope of the application as defined by the claims set forth below.

Claims

1. A steel truss beam launching construction tooling, characterized in that, Include: Steel truss (1), the bottom of the steel truss (1) front end is equipped with several stable holes (4); Support seat (2), the front end of the support seat (2) is fixed with a jacking part (5), and the rear end is provided with a limiting assembly; The limiting assembly includes a vertical plate (8), the two side surfaces of the vertical plate (8) are respectively connected with L-shaped rods (10), the front surface is inserted with a horizontal plate (7), the end of the horizontal plate (7) is connected with a connecting rod (9), and the lower surface of the connecting rod (9) is provided with a plug-in block (6); The surface of the support seat (2) is stacked with a plurality of base plates (11), one side of the base plate (11) is provided with a notch (12); the end of the L-shaped rod (10) is fixed with a vertical rod (17), one end of the vertical rod (17) is movably inserted into the inside of the support seat (2), and the other end is inserted into the notch (12); The outer circumferential surface of the vertical rod (17) is provided with a plurality of rubber strips (18), which abut against the inner wall of the notch (12); The surface of the support seat (2) is provided with a plug-in slot (14), the vertical plate (8) is inserted into the plug-in slot (14) and can be lifted and moved along the plug-in slot (14); the bottom of the vertical plate (8) is connected with a spring (13), and the other end of the spring (13) is connected to the bottom wall of the plug-in slot (14); The surface of the vertical plate (8) is provided with a through slot (20), the horizontal plate (7) is inserted into the through slot (20) and can move horizontally along the through slot (20); the surface of the horizontal plate (7) is connected with a spring rod (19), the other end of the spring rod (19) is connected to the surface of the vertical plate (8), and the spring rod (19) exerts a pulling force on the horizontal plate (7), so that the horizontal plate (7) drives the connecting rod (9) to move towards the steel truss (1); The inside of the connecting rod (9) is provided with a plurality of pusher air cylinders, the output end of the pusher air cylinder is connected with the plug-in block (6), and the plug-in block (6) can be inserted into the stable hole (4) of the steel truss (1); The surface of the L-shaped rod (10) is slidably inserted with a telescopic block (16), the inside of the L-shaped rod (10) and the inside of the vertical plate (8) are filled with hydraulic oil and are connected with each other to form a closed hydraulic channel; the surface of the vertical plate (8) is slidably inserted with a supporting plate (15), one end of the supporting plate (15) is located in the inside of the vertical plate (8).

2. The steel truss beam launching construction tooling of claim 1, wherein, The vertical rod (17) is lifted and lowered synchronously with the L-shaped rod (10) and the vertical plate (8), and the end of the vertical rod (17) inserted into the inside of the support seat (2) can move along the inside of the support seat (2).

3. The steel truss beam launching construction tooling of claim 2, wherein, When the telescopic block (16) slides towards the inside of the L-shaped rod (10), the hydraulic oil is extruded, the hydraulic oil flows into the inside of the vertical plate (8) along the closed hydraulic channel and pushes the supporting plate (15) to extend out of the vertical plate (8), and after the supporting plate (15) extends, the inner wall of the plug-in slot (14) is tightly clamped.

4. A method for erecting a steel truss beam according to claim 3, characterized in that, The steps include: Step one: plug-in positioning Place the two ends of the steel truss (1) on the top of the jacking part (5) of the corresponding support seat (2), start the jacking part (5) to extend to jack up the steel truss (1), and pull out part of the base plate (11) on the surface of the support seat (2); The control of the jacking piece (5) retraction makes the steel truss (1) slowly down, the steel truss (1) end push connecting rod (9), drive the horizontal plate (7) along the vertical plate (8) through the slot (20) and stretch the elastic rod (19); When the connecting rod (9) on the plug-in block (6) and steel truss (1) with stable hole (4) alignment, start the push gas cylinder, drive plug-in block (6) inserted into the stable hole (4); Step two: stable beam Continue to control the jacking piece (5) retraction, the steel truss (1) end bottom and L type rod (10) top contact, and drive L type rod (10) and vertical plate (8) along the plug-in slot (14) down, compression vertical plate (8) bottom spring (13); When the vertical plate (8) down, the vertical rod (17) along the gasket (11) gap (12) synchronous down, the vertical rod (17) outer rubber strip (18) resist the gap (12) inner wall, make the gasket (11) stable in the vertical rod (17) outer circle; L type rod (10) down process, telescopic block (16) by the gap (12) inner wall push and slide to the inside of L type rod (10), extrusion hydraulic oil along the closed hydraulic channel into the vertical plate (8) inside, push the top plate (15) and tightly plug-in slot (14) inner wall, fixed vertical plate (8) position; At this time the steel truss (1) end limit in L type rod (10) and connecting rod (9) between, and vertical plate (8) can only along the plug-in slot (14) lift, realize the stable beam of steel truss (1).

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