CN214737458U - Jacking device for T-shaped bridge - Google Patents

Abstract

The utility model discloses a jacking device for a T-shaped bridge, which comprises a plurality of jacking mechanisms arranged at the bottom of a wing plate and a fixing frame arranged at the bottom of a stand column, wherein the fixing frame is fixed on a pier; the jacking mechanism comprises a jack and a support frame used for supporting the jack, the support frame is arranged on a pier, the jack is installed at the top of the support frame through a base plate, a wedge piece is arranged at the position, close to the stand column, of the bottom of the wing plate, and the plunger end of the jack abuts against the bottom of the wedge piece. The utility model discloses a set up climbing mechanism, applicable in the jacking operation of striding the bridge more, need not large-scale equipment of lifting by crane, construction area is little, is convenient for transport climbing mechanism to the pier department of next bridge of striding, and the jacking height of quantity control T type bridge through the support frame is favorable to reducing bridge beam supports's unbalanced error and reducing jack single jacking distance, is convenient for carry out the jacking with many pontoons of striding the bridge in step, and the practicality is strong.

Description

Jacking device for T-shaped bridge

Technical Field

The utility model belongs to the technical field of the bridge jacking, concretely relates to jacking device for T type bridge.

Background

In order to adapt to the modern traffic industry with high-speed development, more and more bridges are built under special environments such as rivers, lakes and seas, unfavorable geology and the like, when the clearance below the bridge is insufficient, the elevation of the bridge deck is smaller than the designed elevation, and a support is replaced and the bridge is reinforced, a main bearing component of the bridge needs to be lifted by adopting a jacking device, the existing jacking device is provided with a lifting device on the ground to lift the bridge to the designed height, or a hydraulic jack is arranged below the bridge to lift the bridge through the hydraulic jack.

When the height of the bridge body is larger, the periphery of the position is narrow and small, and the bridge piers of the multi-span T-shaped bridge are all in the complex site construction condition of the reservoir, the existing jacking device cannot well meet the jacking requirement, for example, under the weather of strong wind and the like, the lifting equipment is easy to have errors and damage the bridge structure, when the space between the bridge deck and the bridge piers is narrow, large jacks are inconvenient to place, the synchronism of the manually operated jacks is difficult to be completely consistent, unbalanced errors of the bridge body support are easy to generate, namely, the lifting height of each jack at the two ends of the bridge body needs to be adjusted repeatedly, the maintenance level of the bridge body can be kept, and the jacking height requirement can be met, therefore, a device capable of stably jacking the T-shaped bridge beam is urgently needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem lie in not enough to among the above-mentioned prior art, a jacking device for T type bridge is provided, a structure is simple, and reasonable design, through setting up climbing mechanism, it is applicable in the jacking operation of striding the bridge many times, need not large-scale equipment of lifting by crane, construction area is little, be convenient for transport climbing mechanism to the pier department of next bridge of striding, the jacking height of quantity control T type bridge through the support frame, be favorable to reducing bridge beam supports's unbalanced error and reduce jack single jacking distance, be convenient for with many pontoons of striding the bridge synchronous jacking, therefore, the clothes hanger is strong in practicability.

In order to solve the technical problem, the utility model discloses a technical scheme is: the utility model provides a jacking device for T type bridge, T type bridge include pier, stand and set up pterygoid lamina on the stand, its characterized in that: the lifting device comprises a plurality of lifting mechanisms arranged at the bottom of a wing plate and a fixing frame arranged at the bottom of an upright post, wherein the fixing frame is fixed on the bridge pier;

the climbing mechanism includes the jack and is used for supporting the support frame of jack, the support frame sets up on the pier, the jack passes through the backing plate and installs the support frame top, the pterygoid lamina bottom is close to stand department is provided with the wedge, the plunger end butt of jack the bottom of wedge, the support frame includes a plurality of bearing pad pieces, the mount includes a plurality of fixed pad pieces.

Foretell jacking device for T type bridge, its characterized in that: the wedge piece include with pterygoid lamina bottom fixed connection's roof and with the bottom plate of the plunger end butt of jack, vertically laid on the bottom plate a plurality of with roof fixed connection's sandwich panel.

Foretell jacking device for T type bridge, its characterized in that: and an inner included angle between the top plate and the bottom plate is equal to an included angle between the bottom of the wing plate and the horizontal plane.

Foretell jacking device for T type bridge, its characterized in that: the roof is the rectangular plate, just wear to be equipped with in the roof with pterygoid lamina bottom fixed connection's a plurality of bolts, the screw that supplies the bolt passes is all seted up to the four corners of roof.

Foretell jacking device for T type bridge, its characterized in that: and a plurality of displacement sensors are arranged at the bottom of the wing plate.

Foretell jacking device for T type bridge, its characterized in that: the supporting cushion block and the fixing cushion block are spliced into a whole by a plurality of channel steel.

Compared with the prior art, the utility model has the following advantage:

1. the utility model discloses easy and simple to handle, swift, through setting up climbing mechanism, applicable bridge and the jacking operation of the many pontoons of bridge of striding are striden in many, need not large-scale equipment of lifting by crane, and construction area is little, is convenient for transport the pier department of bridge to the next stride with climbing mechanism, has practiced thrift the engineering time, and climbing mechanism can used repeatedly, is favorable to energy-concerving and environment-protective.

2. The utility model discloses a set up the wedge piece, enlarged the area of contact of jack top and pterygoid lamina, not only reduced jack to the harm of pterygoid lamina, still be applicable to the T type bridge that has the inclination bottom the pterygoid lamina, application scope is wide, and the practicality is strong.

3. The utility model discloses a set up a plurality of mounts and a plurality of support frame, be convenient for confirm the quantity of mount and support frame according to the demand of jacking height, the flexible operation, and the height of single support frame is the definite value, all through the quantity control jacking height of support frame in the pterygoid lamina below at T type bridge both ends, be favorable to reducing bridge beam supports's unbalanced error and reduce jack single jacking distance, be convenient for carry out the jacking in step with many pontoons of bridge span, also convenient to popularize and use.

To sum up, the utility model discloses simple structure, reasonable in design through setting up climbing mechanism, is applicable in the jacking operation of striding the bridge more, need not large-scale equipment of lifting by crane, and the construction area is little, is convenient for transport climbing mechanism to the pier department of next bridge of striding, and through the jacking height of the quantity control T type bridge of support frame, be favorable to reducing bridge beam supports's unbalanced error and reduce jack single jacking distance, be convenient for carry out the jacking in step with striding many pontoons of bridge, the practicality is strong.

The technical solution of the present invention is further described in detail by the accompanying drawings and examples.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a left side view of fig. 1.

Fig. 3 is a schematic structural diagram of the wedge member of the present invention.

Fig. 4 is a schematic structural view of the middle support frame of the present invention.

Fig. 5 is a schematic structural view of the middle fixing frame of the present invention.

Description of reference numerals:

1-bridge pier; 2-upright post; 3-wing plate;

4-a wedge; 4-1-top plate; 4-2-base plate;

4-3-sandwich panel; 4-4-screw hole; 5-a jack;

6-backing plate; 7-supporting the cushion block; 8, fixing the cushion block;

9-displacement sensor.

Detailed Description

As shown in fig. 1 to 5, the utility model discloses an including setting up a plurality of climbing mechanisms and the setting of pterygoid lamina 3 bottom are in the mount of stand 2 bottom, the mount is fixed on pier 1.

Climbing mechanism includes jack 5 and is used for supporting jack 5's support frame, the support frame sets up on the pier 1, jack 5 installs through backing plate 6 the support frame top, 3 bottoms of pterygoid lamina are close to 2 departments of stand are provided with wedge piece 4, jack 5's plunger end butt the bottom of wedge piece 4, the support frame includes a plurality of supporting pad blocks 7, the mount includes a plurality of fixed pad blocks 8.

During the in-service use, through setting up climbing mechanism, it is applicable in the jacking operation of the bridge of striding more and striding many pontoons of bridge with, need not large-scale equipment of lifting by crane, construction area is little, be convenient for transport climbing mechanism to the pier 1 department of the bridge of striding next, construction time has been practiced thrift, and climbing mechanism can used repeatedly, be favorable to energy-concerving and environment-protective, through setting up wedge 4, the area of contact of 5 tops of jack and pterygoid lamina 3 has been enlarged, jack 5 has been reduced to pterygoid lamina 3's harm.

In the embodiment, as shown in fig. 3, the wedge 4 comprises a top plate 4-1 fixedly connected with the bottom of the wing plate 3 and a bottom plate 4-2 abutted with the plunger end of the jack 5, and a plurality of sandwich plates 4-3 fixedly connected with the top plate 4-1 are vertically arranged on the bottom plate 4-2.

In this embodiment, an inner included angle between the top plate 4-1 and the bottom plate 4-2 is equal to an included angle between the bottom of the wing plate 3 and a horizontal plane.

When the wedge-shaped bridge is used in practice, the plurality of sandwich plates 4-3 are vertically arranged between the top plate 4-1 and the bottom plate 4-2 side by side, the two sandwich plates 4-3 which are positioned at the most close sides are respectively arranged at the nearest part and the farthest part of the distance between the top plate 4-1 and the bottom plate 4-2, the height of each sandwich plate 4-3 is matched with the distance between the top plate 4-1 and the bottom plate 4-2, the wedge-shaped pieces 4 can conveniently form a trapezoidal cube, the rigidity and the stability of the wedge-shaped pieces 4 can be enhanced, and the inner included angle between the top plate 4-1 and the bottom plate 4-2 is equal to the inclined angle of the bottom of the wing plate 3, so that the wedge-shaped bridge is suitable for T-shaped bridges with inclined angles at the bottoms of the wing plates 3, and the application range is wide.

In this embodiment, the top plate 4-1 is a rectangular plate, a plurality of bolts fixedly connected with the bottom of the wing plate 3 penetrate through the top plate 4-1, and screw holes 4-4 for the bolts to penetrate through are formed in four corners of the top plate 4-1.

In practical use, the screw holes 4-4 for the bolts to pass through are formed in the top plate 4-1, so that the bolts can conveniently pass through the top plate 4-1 and the wing plate 3, the top plate 4-1 is fixed at the bottom of the wing plate 3, namely, the wedge 4 is fixed at the bottom of the wing plate 3, the screw holes 4-4 are formed in the four corners of the top plate 4-1, the stability of the wedge 4 connected with the wing plate 3 is conveniently enhanced, the wedge 4 is ensured not to shift in the jacking process, the force of the jack 5 is transmitted to the wing plate 3, and the T-shaped bridge is jacked to the designed height by lifting the two ends of the wing plate 3.

It should be noted that the position of the interlayer plate 4-3 is adjusted according to the position of the screw hole 4-4, so that the screw hole 4-4 is ensured not to be blocked, and the interlayer plate 4-3 is prevented from influencing the bolt to pass through the screw hole 4-4.

In this embodiment, a plurality of displacement sensors 9 are disposed at the bottom of the wing plate 3.

During the in-service use, through set up displacement sensor 9 in 3 bottoms of pterygoid lamina, be convenient for utilize displacement sensor 9 through surveying the distance between pterygoid lamina 3 and the pier 1, make clear of the jacking height of T type bridge, all set up displacement sensor 9 on pterygoid lamina 3 through 2 both sides at the stand, be convenient for adjust the pterygoid lamina 3 height of 2 both sides of jacking stand according to the data that displacement sensor 9 obtained, thereby make clear of whether pterygoid lamina 3 after the jacking is in the horizontality, be favorable to striding the bridge more and with the jacking highly uniform who strides many bridges of bridge.

In the present embodiment, as shown in fig. 4 and 5, the supporting block 7 and the fixing block 8 are integrally formed by splicing a plurality of channel steel.

During the in-service use, two channel-section steels are back-to-back welded to be an I-shaped steel member, and a plurality of I-shaped steel members syntropy is put into a set of, and two sets of I-shaped steel members stack and form lip block 7 or fixed cushion 8, and the longitudinal direction mutually perpendicular of I-shaped steel member when stacking, and weld as a whole, stack back with a plurality of lip block 7, weld into the support frame, stack the back with a plurality of fixed cushion 8, weld into the mount.

During the in-service use, the width of fixed cushion 8 suits with the width of stand 2, lip block 7 lays on the lateral wall next door of stand 2, through setting up a plurality of lip blocks 7 and a plurality of fixed cushion 8, be convenient for confirm the quantity of lip block 7 and fixed cushion 8 according to the demand of jacking height, the flexible operation, and single lip block 7 highly be the definite value, all control the jacking height through lip block 7's quantity in 3 below of pterygoid lamina at T type bridge both ends, be favorable to reducing bridge beam support's unbalanced error and reduce 5 single jacking distances of jack, be convenient for carry out the jacking with many bridge bodys of bridge.

It should be noted that the base plate 6 is disposed on the uppermost surface of the plurality of supporting cushion blocks 7, and the length and width dimensions of the base plate 6 are adapted to the length and width dimensions of the supporting cushion blocks 7, so that the supporting frame is convenient to bear load, and the stability of the jack 5 is also facilitated.

The above, only be the utility model discloses a preferred embodiment, it is not right the utility model discloses do any restriction, all according to the utility model discloses the technical entity all still belongs to any simple modification, change and the equivalent structure change of doing above embodiment the utility model discloses technical scheme's within the scope of protection.

Claims (6)

1. The utility model provides a jacking device for T type bridge, T type bridge includes stand (2) and sets up pterygoid lamina (3) on stand (2), T type bridge is located pier (1), its characterized in that: the device comprises a plurality of jacking mechanisms arranged at the bottom of a wing plate (3) and a fixing frame arranged at the bottom of an upright post (2), wherein the fixing frame is fixed on the pier (1);

climbing mechanism includes jack (5) and is used for supporting the support frame of jack (5), the support frame sets up on pier (1), install jack (5) through backing plate (6) the support frame top, pterygoid lamina (3) bottom is close to stand (2) department is provided with wedge piece (4), the plunger end butt of jack (5) the bottom of wedge piece (4), the support frame includes a plurality of bearing pad piece (7), the mount includes a plurality of fixed cushion piece (8).

2. The jacking device for the T-shaped bridge according to claim 1, wherein: the wedge piece (4) comprises a top plate (4-1) fixedly connected with the bottom of the wing plate (3) and a bottom plate (4-2) abutted to the plunger end of the jack (5), and a plurality of sandwich plates (4-3) fixedly connected with the top plate (4-1) are vertically distributed on the bottom plate (4-2).

3. The jacking device for the T-shaped bridge according to claim 2, wherein: the inner included angle between the top plate (4-1) and the bottom plate (4-2) is equal to the included angle between the plane where the bottom of the wing plate (3) is located and the horizontal plane.

4. The jacking device for the T-shaped bridge according to claim 2, wherein: the top plate (4-1) and the bottom plate (4-2) are rectangular plates, a plurality of bolts fixedly connected with the bottoms of the wing plates (3) penetrate through the top plate (4-1), and screw holes (4-4) for the bolts to penetrate through are formed in four corners of the top plate (4-1).

5. The jacking device for the T-shaped bridge according to claim 1, wherein: and a plurality of displacement sensors (9) are arranged at the bottom of the wing plate (3).

6. The jacking device for the T-shaped bridge according to claim 1, wherein: the supporting cushion block (7) and the fixed cushion block (8) are spliced into a whole by a plurality of channel steel.

Images