CN216238152U - Prefabricated beam erection temporary buttress platform of variable width bridge - Google Patents

Abstract

The utility model relates to old bridge dismantling auxiliary equipment, in particular to a prefabricated beam erected temporary buttress platform of a variable width bridge, which comprises a stand column mechanism, a cross beam and a support platform, the cross beam is arranged at the top of the upright post mechanism, the support table is arranged at the top of the cross beam, the upright post mechanism comprises a plurality of upright posts which are arranged in a matrix, each upright post can be partially anchored into the ground, the supporting platform comprises a plurality of distributing beams which are arranged in parallel, each distributing beam is respectively and fixedly connected with the cross beam to provide a erecting foundation for the bridge girder erection machine so that the bridge girder erection machine can transversely move to meet the width of a bridge deck, the upright columns arranged in the matrix can be anchored into the ground to provide sufficient supporting force, the cross beams provide stable mounting bases for mounting the distribution beams, and the distribution beams arranged in parallel form a top supporting platform.

Description

Prefabricated beam erection temporary buttress platform of variable width bridge

Technical Field

The utility model relates to old bridge dismantling auxiliary equipment, in particular to a prefabricated beam erection temporary buttress platform of a wide bridge.

Background

Along with the continuous development of urban economy, the existing road span can not meet the traffic demand gradually, and the projects for reconstruction and expansion on the existing road are increased gradually, at present, a bridge erecting machine is generally adopted in the construction process of dismantling the old bridge and erecting the new bridge of the prefabricated bridge of the road above a river channel, and when the number of beam sheets of the prefabricated bridge deck is increased and the width of the bridge is changed from narrow to wide, the transverse moving range of the bridge erecting machine needs to be correspondingly increased so as to meet the requirement of erecting the beam plates at the widest position.

However, due to the fact that the width of the bridge deck of the erected bridge is insufficient, when the bridge girder erection machine is used for erecting the outer side girder, the situation that the supporting legs of the bridge girder erection machine are arranged without space can occur, the bridge girder erection machine is suspended, potential safety hazards exist, construction operation cannot be conducted, and smooth erection of the prefabricated girder of the widened bridge is affected.

Therefore, a technical scheme is needed at present to solve the technical problem that when the existing precast beam of the widened bridge is erected, the bridge girder erection machine does not have a leg space at the widened section, and is suspended in the air, so that the smooth completion of the girder erection task is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to: aiming at the problems in the prior art, the prefabricated beam erection temporary buttress platform for the wide bridge is provided.

In order to achieve the purpose, the utility model adopts the technical scheme that:

the utility model provides a widen bridge precast beam erects interim buttress platform, includes stand mechanism, crossbeam and brace table, the crossbeam sets up stand mechanism top, the brace table sets up the crossbeam top, stand mechanism includes the stand of a plurality of matrix arrangements, each the stand can partly anchor into ground, the brace table includes a plurality of parallel arrangement's distribution beam, each the distribution beam respectively with crossbeam fixed connection.

According to the temporary buttress platform erected on the widening bridge precast beam, the temporary buttress platform is composed of the upright columns, the cross beams and the support platforms, an erection foundation is provided for a bridge girder erection machine, the bridge girder erection machine can perform transverse movement meeting the width of a bridge deck, the upright columns arranged in a matrix mode can be anchored into the ground and provide sufficient supporting force, the cross beams provide stable installation foundation for installation of the distribution beams, the distribution beams arranged in parallel form the top support platform, the structure is simple, the bearing capacity is high, the number of the upright columns of the upright column mechanisms can be adjusted according to actual conditions, the supporting force of the upright column mechanisms is changed, the number of the distribution beams is adjusted, the width of the support platform is changed, and the temporary buttress platform meets the use requirements of widening bridges with different widths.

As a preferable scheme of the utility model, a support rod is arranged between the adjacent upright columns. The vaulting pole can link together adjacent stand, strengthens stand mechanism's bearing capacity, ensures stand mechanism at the ascending structural stability of all directions.

As a preferable scheme of the present invention, the brace rod at least includes a plurality of transverse braces and a plurality of diagonal braces, both ends of the transverse braces and the diagonal braces are respectively and fixedly connected to the vertical column, and the brace rod is an i-steel or a channel steel.

As the preferable scheme of the utility model, the upright posts are seamless steel tubes, the upright posts can be anchored into the ground for at least 12m, and the distance between the central lines of the adjacent upright posts is 2.5-3.5 m.

As the preferable scheme of the utility model, the distribution beams are all I-shaped steel or double-spliced I-shaped steel. The I-steel or double-spliced I-steel can form a supporting table with a flat top surface after being arranged and combined.

In a preferred embodiment of the present invention, adjacent distribution beams are fixedly connected to form the support platform with a closed top surface.

As a preferable scheme of the utility model, the distribution beams are arranged at intervals of 45-55 cm.

As the preferable scheme of the utility model, the cross beam is double-spliced I-shaped steel. The strength of the beam is higher, and the support stability of the support table is improved.

As a preferred scheme of the utility model, the tops of the upright posts are provided with clamping grooves, the cross beam is clamped and matched with the clamping grooves, and the cross beam is longitudinally arranged along the bridge. The installation position of the cross beam is moved, the cross beam is not easy to move, and a stable installation foundation is provided for the distribution beam.

As a preferred scheme of the present invention, the present invention further comprises a connecting rod inserted into the upright post mechanism, the connecting rod can extend out of the upright post mechanism, and the connecting rod is respectively fixedly connected with the upright post and the stay bar. The connecting rod is used for extending to below the bridge panel for construct with the bridge and be connected down, make this interim buttress platform can be connected with the bridge that has erect, further improve the overall structure stability of this interim buttress platform, provide stable support basis for the bridging machine.

In summary, due to the adoption of the technical scheme, the utility model has the beneficial effects that:

1. the temporary buttress platform is formed by the upright columns, the cross beams and the support platform, so that an erection foundation is provided for the bridge girder erection machine, and the bridge girder erection machine can transversely move to meet the width of a bridge deck;

2. the upright columns arranged in the matrix can be anchored into the ground to provide enough supporting force;

3. the cross beam provides a stable mounting base for mounting the distribution beams, and the distribution beams arranged in parallel form a top support platform, so that the structure is simple and the bearing capacity is strong;

4. the number of the upright columns of the upright column mechanism can be adjusted according to actual conditions, the supporting force of the upright column mechanism is changed, the number of the distribution beams is adjusted, and the width of the supporting platform is changed, so that the temporary buttress platform meets the use requirements of bridges with different widths and widths.

Drawings

FIG. 1 is a front view of a prefabricated beam erected temporary pier platform of a widened bridge of the present invention;

FIG. 2 is a side view of a prefabricated bridge erected temporary pier platform of the utility model;

FIG. 3 is a top view of a prefabricated bridge erected temporary pier platform of the utility model;

fig. 4 is a usage effect diagram of the wide bridge prefabricated beam erected temporary pier platform of the utility model.

Icon:

1-upright post mechanism, 11-upright post, 12-clamping groove, 13-stiffening plate, 2-cross beam, 3-supporting table, 31-distribution beam, 4-cross beam, 5-diagonal support and 6-connecting rod.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings.

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

Example 1

As shown in fig. 1-4, a prefabricated bridge erection temporary pier platform of a variable width bridge comprises a column mechanism 1, a beam 2 and a support platform 3, wherein the beam 2 is arranged at the top of the column mechanism 1, the support platform 3 is arranged at the top of the beam 2, the column mechanism 1 comprises a plurality of columns 11 arranged in a matrix, each column 11 can be partially anchored into the ground, the support platform 3 comprises a plurality of distribution beams 31 arranged in parallel, and each distribution beam 31 is respectively and fixedly connected with the beam 2.

The prefabricated beam erected temporary buttress platform of the widened bridge in the embodiment adopts 6 upright posts 11 to form an upright post mechanism 1, the upright posts 1 are 630# seamless steel tubes, can be arranged by a 50t vibration hammer, are anchored into the ground for at least 12m, are longitudinally arranged along the bridge for 3 upright posts 11, are transversely arranged along the bridge for 2 rows of upright posts 11 to form the upright post mechanism 1 arranged in a 2 x 3 matrix manner, and the distance between the central lines of the adjacent upright posts 11 in the longitudinal direction and the transverse direction of the bridge is 3 m; crossbeam 2 is 45# I-steel for the double pin, set up along the bridge is vertical, with the stand 11 top of arranging along the bridge is fixed connection respectively, distribution beam 31 is 45# I-steel or double pin I-steel, many distribution beams 31 set up along the bridge is horizontal, set up on crossbeam 2, with crossbeam 2 welded connection, form brace table 3, provide the basis of erectting for the bridging machine, make the bridging machine can satisfy the sideslip of bridge floor width, through finite element software analog computation, the bearing capacity of this interim buttress platform satisfies the construction requirement, excellent in use effect in actual work progress, the bridging task that corresponds the bridging machine has been accomplished smoothly.

Preferably, the top of the upright post 11 forms a clamping groove 12 with an upward opening through cutting, and the beam 2 and the clamping groove 12 are clamped and matched and are connected in a welding mode, so that the beam 2 is stably arranged and forms a whole with the upright post mechanism 1.

Preferably, triangular stiffening plates 13 are arranged at positions on the upright post 11 corresponding to the bottoms of the clamping grooves 12 and positions connected with other components, and the structural stability of the temporary buttress platform is further improved through the stiffening plates 13.

Preferably, it is vertical and horizontal adjacent along the bridge set up stull 4 and bracing 5 between the stand 11 respectively, stull 4 and bracing 5 are 20# channel-section steel, stull 4 and bracing 5 both ends respectively with stand 11 surface welded connection, form horizontal enhancement and the bracing enhancement to stand mechanism 1, make stand mechanism 1's stability higher.

Preferably, the distribution beams 31 are arranged at intervals of 50 cm. Under the condition of guaranteeing the normal use of the supporting platform 3, the number of the distributing beams 31 is reduced, the overall material consumption of the temporary buttress platform is reduced, meanwhile, the distributing beams 31 are transversely arranged along the bridge, gaps are arranged between the adjacent distributing beams 31, when the bridge girder erection machine is supported to move transversely, the supporting of the bridge girder erection machine is carried out by placing square timbers longitudinally extending along the bridge, the supporting is perpendicular to the transverse moving direction of the bridge girder erection machine, and the distributing beams 31, the square timbers and the bridge girder erection machine can be stably supported.

Example 2

As shown in fig. 1 to 4, the prefabricated bridge erection temporary pier platform of the present embodiment has the same structure as that of embodiment 1, except that: the adjacent distribution beams 31 are attached and welded to form the support platform 3 with a sealed top surface.

Example 3

As shown in fig. 1 to 4, the prefabricated bridge erection temporary pier platform of the present embodiment has the same structure as that of embodiment 1, except that: the device also comprises a connecting rod 6 arranged in the upright post mechanism 1 in a penetrating way.

The prefabricated beam of widening bridge of this embodiment erects interim buttress platform, and connecting rod 6 is 20# channel-section steel, can set up to fix on stull 4, extends to outside stand mechanism 1, and connecting rod 6 is used for constructing down with the bridge and is connected, makes this interim buttress platform and bridge form a whole down, provides stable support basis for the bridging machine.

Preferably, the number and length of the connecting rods 6 can be adjusted according to the actual situation.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. The utility model provides a widen bridge precast beam erects interim buttress platform, its characterized in that, includes stand mechanism (1), crossbeam (2) and brace table (3), crossbeam (2) set up stand mechanism (1) top, brace table (3) set up crossbeam (2) top, stand mechanism (1) includes stand (11) that a plurality of matrixes were arranged, each stand (11) can be partly anchored ground, brace table (3) include a plurality of parallel arrangement's distribution roof beam (31), each distribution roof beam (31) respectively with crossbeam (2) fixed connection.

2. A prefabricated bridge erection temporary pier platform as claimed in claim 1, wherein struts are provided between adjacent said uprights (11).

3. The wide bridge prefabricated beam erected temporary pier platform as claimed in claim 2, wherein the brace comprises at least a plurality of transversely arranged crossbars (4) and a plurality of obliquely arranged diagonal braces (5), two ends of the crossbars (4) and the diagonal braces (5) are respectively and fixedly connected with the upright column (11), and the brace is an I-steel or a channel steel.

4. The prefabricated bridge erected temporary pier platform as claimed in claim 1, wherein said columns (11) are seamless steel pipes, said columns (11) can be anchored into the ground for at least 12m, and the distance between the center lines of adjacent columns (11) is 2.5-3.5 m.

5. The precast wide bridge erected temporary pier platform as recited in claim 1, wherein said distribution beams (31) are all i-beams or double split i-beams.

6. A pre-fabricated bridge erection temporary pier platform as defined in claim 5, wherein adjacent distribution beams (31) are fixedly connected to form said support platform (3) with a closed top surface.

7. The bridge widening prefabricated beam erection temporary pier platform as claimed in claim 5, wherein said distribution beams (31) are double split i-beams, and adjacent distribution beams (31) are arranged at a distance of 45-55cm to form said support platform (3).

8. The bridge-widening prefabricated beam erected temporary pier platform as claimed in claim 1, wherein the cross beam (2) is a double-split i-steel.

9. The bridge widening prefabricated beam erected temporary pier platform as claimed in claim 8, wherein the top of the upright (11) is provided with a slot (12), the cross beam (2) is in clamping fit with the slot (12), and the cross beam (2) is arranged along the longitudinal direction of the bridge.

10. The bridge-widening prefabricated beam erected temporary pier platform as claimed in claim 3, further comprising a connecting rod (6) penetrating into the column mechanism (1), wherein the connecting rod (6) can extend out of the column mechanism (1), and the connecting rod (6) is fixedly connected with the column (11) and the stay bar respectively.

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