CN217499974U - Device for bridge closure construction - Google Patents

Abstract

The utility model relates to a device for bridge closure construction belongs to bridge construction field. A device for bridge closure construction, including two bridge structures that will close the dragon, two bridge structures all are provided with the bolster, still include two piece at least spandrels, and the spandrel girder separates the setting along first direction, and spandrel girder one end sets up on the bolster on one of them bridge structure, and the other end setting of spandrel girder is on the bolster on another bridge structure. The both ends of the spandrel girder of this application all set up on corresponding bridge span structure, and the spandrel girder of this application is simply supported the girder construction promptly, and the intensity of this structure is high, and antidumping performance is good, and goes up the one end of mould longeron and pass through on the second hoist is fixed to the spandrel girder, and the one end of lower mould longeron is fixed to the spandrel girder through first hoist, consequently uses the device of this application to close the dragon and construct and can reduce the risk that the device topples.

Description

Device for bridge closure construction

Technical Field

The utility model relates to a device for bridge closure construction belongs to bridge construction field.

Background

Since the first cantilever pouring construction prestressed concrete girder bridge in the world was developed and designed by the federal german dividoka company before 1950, the cantilever pouring construction method is continuously improved, perfected, popularized and applied, is widely accepted by engineering world all over the world, and becomes one of the main construction methods for constructing large and medium span bridges.

The cradle construction has the main advantages of little influence by terrain conditions, small influence on traffic under the bridge, wide application in highway bridge construction, particularly large bridges across valleys, existing roads, rivers and sea areas, and suitability for the structural construction of prestressed concrete cantilever bridges, continuous beam bridges, T-shaped steel frame bridges, continuous rigid frame bridges, arch bridges, cable-stayed bridges and the like with large and medium spans. The cantilever casting method has the main characteristics that the using amount of construction equipment and turnover materials is small, a floor stand does not need to be erected except for a pier top cast-in-place section and a side span cast-in-place section, large-scale hoisting and transporting machines are not needed, the main equipment is a pair of traveling hanging baskets, the turnover material investment is effectively reduced, and turnover circulation operation can be realized.

With the continuous development of society, in the design process of highway bridges, when crossing over mountains, rivers or existing lines, the common span is large, and the economical and practical first choice is the continuous steel bridge, so in recent years, the construction of the cantilever casting method is greatly increased, but the accident frequency is brought along with the construction, and the hanging basket overturning accident caused by the design rigidity, the stability and other reasons occupies a great proportion in the continuous steel bridge accident.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is: the device for bridge closure construction is used for reducing the risk of overturning of the device when a bridge closure section is constructed.

The utility model provides a technical scheme that its technical problem adopted is: the device for bridge closure construction comprises two bridge span structures to be closed, wherein the two bridge span structures are both provided with a pad beam, the device also comprises at least two bearing beams, the bearing beams are arranged at intervals along a first direction, one end of each bearing beam is arranged on the pad beam on one bridge span structure, the other end of each bearing beam is arranged on the pad beam on the other bridge span structure, the top of each bridge span structure is respectively and fixedly connected with at least two upper die longitudinal beams, one end, far away from the bridge span structure connected with the upper die longitudinal beams, of each upper die longitudinal beam extends towards the other bridge span structure, the upper die longitudinal beams on each bridge span structure are arranged at intervals along the first direction, and one end, far away from the bridge span structure connected with the upper die longitudinal beams, of each upper die longitudinal beam is respectively and fixedly connected to the bearing beams corresponding to the upper die longitudinal beams through a second lifting appliance;

each bridge span structure is fixedly connected with at least two lower die longitudinal beams respectively, each lower die longitudinal beam is positioned below the corresponding bridge span structure, one end, far away from the bridge span structure connected with the lower die longitudinal beam, of the lower die longitudinal beam extends towards the other bridge span structure, the lower die longitudinal beams are arranged at intervals along a first direction, and one end, far away from the bridge span structure connected with the lower die longitudinal beam, of each lower die longitudinal beam is fixedly connected to a bearing beam corresponding to the lower die longitudinal beam through a first lifting appliance respectively;

the first direction is a width direction of the bridge span structure.

The device is particularly suitable for continuous steel bridges and continuous beam bridges.

Furthermore, the second lifting appliance is a first lifting rod, one end of the first lifting rod is fixedly connected to the bearing beam, the other end of the first lifting rod is fixedly connected with an annular first fixing piece, and the first fixing piece is sleeved on the periphery of the upper die longitudinal beam.

Furthermore, one end of the upper die longitudinal beam is fixedly connected to the bridge span structure through a second suspension rod.

Furthermore, one end of the lower die longitudinal beam is arranged on the first supporting device, and one end of the lower die longitudinal beam, far away from the bridge span structure connected with the lower die longitudinal beam, is arranged on the second supporting device;

the first supporting device comprises at least two second fixing pieces fixedly connected with corresponding bridge span structures, the second fixing pieces are arranged along a first direction in a spaced mode, the first supporting device further comprises a second lower cross beam, one end of the second lower cross beam is fixedly connected to one of the second fixing pieces, and the other end of the second lower cross beam is fixedly connected to the other second fixing piece;

the second supporting device comprises at least two third fixing pieces, the third fixing pieces are arranged along the first direction in a spaced mode, each third fixing piece is fixedly connected with the corresponding bearing beam through a first lifting appliance, the second supporting device further comprises a first lower cross beam, one end of the first lower cross beam is fixedly connected to one of the third fixing pieces, and the other end of the first lower cross beam is fixedly connected to the other third fixing piece;

one end of the lower die longitudinal beam is arranged on the second lower cross beam, and the other end of the lower die longitudinal beam is arranged on the first lower cross beam.

Further, the second fixing member is fixedly connected to the bridging structure through a third suspension rod.

Furthermore, first hoist is the steel suspender, and on fixing device fixed connection was passed through to the spandrel girder to the one end of steel suspender, fixing device included fixed pin and two support piece of spaced setting on the spandrel girder, and fixed being provided with the fixed pin between two support piece, is provided with first through-hole on the steel suspender, and first through-hole is passed to the fixed pin.

Furthermore, each supporting piece is provided with a third through hole, the fixing pin is inserted into the third through holes in the two supporting pieces and detachably connected with the supporting pieces, and the first through holes are provided with a plurality of through holes along the length direction of the steel sling.

Furthermore, the fixing device is fixedly arranged on the first upper cross beam, the length direction of the first upper cross beam extends along the first direction, and the first upper cross beam is fixedly arranged on the top surfaces of the bearing beams.

Furthermore, one end, far away from the bridge span structure, of each upper die longitudinal beam is fixedly connected to a second upper cross beam through a second lifting appliance, the length direction of the second upper cross beam extends along the first direction, and the second upper cross beam is fixedly arranged on the top surfaces of the bearing beams.

Furthermore, the bearing beam is a Bailey beam.

The utility model has the advantages that:

the two ends of the bearing beam are arranged on the corresponding bridge span structures, namely the bearing beam is a simply supported beam structure which is high in strength and good in anti-overturning performance, one end of the upper die longitudinal beam is fixed to the bearing beam through the second lifting appliance, and one end of the lower die longitudinal beam is fixed to the bearing beam through the first lifting appliance, so that the risk of overturning of the device can be reduced when the device is used for closure construction;

and because the spandrel girder adopts the simply supported beam structure, therefore the structure of this application can be applicable to the closure section construction of long span, hangs the basket construction and can only adapt to the closure section construction about 2 meters to the greatest extent, and the maximum adaptable closure section construction about 18 meters of this application, consequently adopts the structure construction closure section of this application can improve the efficiency of construction, save the engineering time.

Drawings

Fig. 1 is a front view of the present invention;

fig. 2 is an enlarged schematic view of the utility model at point D;

fig. 3 is a side view of the present invention;

fig. 4 is a top view of the present invention;

fig. 5 is an enlarged schematic view of the utility model at a;

fig. 6 is an enlarged schematic view of the utility model at the position B;

fig. 7 is an enlarged schematic view of the utility model at C;

fig. 8 is a front view of a second fixing member of the present invention;

fig. 9 is a side view of a second fixing member of the present invention;

fig. 10 is a plan view of a second fixing member according to the present invention.

Labeled in the figure as: the bridge structure comprises a bridge structure 1, a pad beam 21, a bearing beam 22, a first upper cross beam 23, a support 24, a fixing pin 25, a first hanger 26, a first through hole 262, a second hanger 27, a first fixing part 28, a third hanger 29, an upper die longitudinal beam 32, a first lower cross beam 34, a lower die longitudinal beam 36, a second lower cross beam 38, a second fixing part 4, a butt joint part 42, a second through hole 422, a placing part 44, a connecting part 46, a platform 5, a third fixing part 6 and a second upper cross beam 7.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them.

Thus, the following detailed description of the embodiments of the invention is not intended to limit the scope of the invention as claimed, but is merely representative of some embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1 to 10, the device for bridge closure construction of the present invention comprises two bridge span structures 1 to be closed, wherein the two bridge span structures 1 are both provided with a pad beam 21, and further comprises at least two bearing beams 22, the bearing beams 22 are spaced apart in a first direction, one end of each bearing beam 22 is disposed on the pad beam 21 of one of the bridge span structures 1, the other end of each bearing beam 22 is disposed on the pad beam 21 of the other bridge span structure 1, the top of each bridge span structure 1 is respectively and fixedly connected with at least two upper mold longitudinal beams 32, one end of each upper mold longitudinal beam 32, which is far away from the bridge span structure 1 connected with the upper mold longitudinal beam 32, extends toward the other bridge span structure 1, the upper mold longitudinal beams 32 on each bridge span structure 1 are spaced apart in the first direction, one end of each upper die longitudinal beam 32, which is far away from the bridge span structure 1 connected with the upper die longitudinal beam, is fixedly connected to the bearing beam 22 corresponding to the upper die longitudinal beam 32 through a second lifting appliance 27;

at least two lower die longitudinal beams 36 are fixedly connected to each bridge span structure 1 respectively, each lower die longitudinal beam 36 is located below the corresponding bridge span structure 1, one end, away from the bridge span structure 1 connected with the lower die longitudinal beam 36, of each lower die longitudinal beam 36 extends towards the other bridge span structure 1, the lower die longitudinal beams 36 are arranged at intervals along a first direction, and one end, away from the bridge span structure 1 connected with the lower die longitudinal beam 36, of each lower die longitudinal beam 36 is fixedly connected to the bearing beam 22 corresponding to the lower die longitudinal beam 36 through a first lifting appliance 26;

the first direction is the width direction of the bridging structure 1.

The device is particularly suitable for continuous steel bridges and continuous beam bridges.

Specifically, the top surface of the upper die longitudinal beam 32 and the top surface of the lower die longitudinal beam 36 are used for placing concrete templates, and steel bars can be bound after the concrete templates are supported; each bridge span structure 1 is provided with a plurality of pad beams 21, the length direction of the pad beams 21 extends along a first direction, two ends of a bearing beam 22 of the present application are arranged on the corresponding bridge span structure 1, namely, the bearing beam 22 of the present application is a simple beam structure, the structure has high strength and good anti-overturning performance, one end of an upper die longitudinal beam 32 is fixed on the bearing beam 22 through a second lifting appliance 27, and one end of a lower die longitudinal beam 36 is fixed on the bearing beam 22 through a first lifting appliance 26, so that the risk of overturning of the device can be reduced by using the device of the present application to carry out closure construction; and because spandrel girder 22 adopts the simply supported beam structure, the structure of this application can be applicable to the closure section construction of long span, hangs the basket construction and can only adapt to the closure section construction about 2 meters to the greatest extent, and the construction of the closure section that the maximum adaptable 18 meters of this application is about, consequently adopts the structure construction closure section of this application can improve the efficiency of construction, save the engineering time.

In addition, the linear quality of the closure section constructed by adopting the structure is good, and the integral rigidity and deflection of the bearing beam 22 can be adjusted through calculation, so that the structure can predict the deformation in advance and adjust in advance, and the integral linear shape meets the requirements of design drawings and specifications; if adopt the construction of hanging the basket, the template is yielding when carrying out concrete placement, and the structural strength of double bracing is big, and template non-deformable when concrete placement consequently adopts the structure of this application can guarantee that the closure section possesses good linear, and linear is exactly the shape of the top surface and the bottom surface of the bridge span structure 1 of closure section.

Preferably, the second hanger 27 is a first hanger rod, one end of the first hanger rod is fixedly connected to the load-bearing beam 22, the other end of the first hanger rod is fixedly connected to an annular first fixing member 28, and the first fixing member 28 is sleeved on the periphery of the upper die longitudinal beam 32. Specifically, when the annular first fixing member 28 is used for fixing the upper die longitudinal beam 32, the force application point of the upper die longitudinal beam 32 can be conveniently adjusted, and the position of one end of the upper die longitudinal beam 32 in the vertical direction can be adjusted by the first suspension rod.

Preferably, one end of the upper die longitudinal beam 32 is fixedly connected to the bridge span structure 1 through a second suspension rod.

As shown in fig. 7 to 10, preferably, one end of the lower die longitudinal beam 36 is arranged on a first support device, and the end of the lower die longitudinal beam 36 remote from the bridge structure 1 connected thereto is arranged on a second support device;

the first supporting device comprises at least two second fixing pieces 4 fixedly connected with the corresponding bridge span structure 1, the second fixing pieces 4 are arranged at intervals along the first direction, the first supporting device also comprises a second lower cross beam 38, one end of the second lower cross beam 38 is fixedly connected to one of the second fixing pieces 4, and the other end of the second lower cross beam 38 is fixedly connected to the other second fixing piece 4;

the second supporting device comprises at least two third fixing pieces 6, the third fixing pieces 6 are arranged at intervals along the first direction, each third fixing piece 6 is fixedly connected with the corresponding bearing beam 22 through a first lifting appliance 26, the second supporting device further comprises a first lower cross beam 34, one end of the first lower cross beam 34 is fixedly connected to one of the third fixing pieces 6, and the other end of the first lower cross beam 34 is fixedly connected to the other third fixing piece 6;

one end of the lower die longitudinal beam 36 is disposed on the second lower cross beam 38, and the other end of the lower die longitudinal beam 36 is disposed on the first lower cross beam 34.

Specifically, the length direction of the second lower cross beam 38 extends along the first direction, and a plurality of lower die longitudinal beams 36 can be arranged after the scheme is arranged, so that the number of the first lifting appliances 26 is saved; further, the platform 5 is fixed on the second fixing part 4, and the platform 5 is used for construction of workers.

Preferably, the second attachment element 4 is fixedly connected to the bridging structure 1 by means of a third suspension bar 29.

Specifically, second mounting 4 is including placing piece 44, the length direction who places piece 44 is parallel with the length direction who strides structure 1, and the middle part fixedly connected with butt joint portion 42 of placing piece 44, butt joint portion 42 extends towards vertical direction, be provided with second through-hole 422 on the butt joint portion 42, the one end fixed connection of the third jib 29 of being connected with second mounting 4 is on striding structure 1, other end fixedly connected with adaptor, the fourth through-hole has been seted up on the adaptor, the axis of fourth through-hole and the axis of second through-hole 422 are located same straight line, and the adaptor passes through bolt fixed connection with butt joint portion 42. The second lower cross members 38 are fixedly attached to the top surfaces of the placement members 44, and preferably, the number of the second lower cross members 38 is two, and the second lower cross members are respectively fixed to the top surfaces of both ends of the placement members 44 in the length direction thereof. Furthermore, place piece 44 and butt joint portion 42 and constitute one and place the unit, the quantity of the unit of placing of this application is 2, and sets up along first direction interval, and two are placed the unit and pass through connecting piece 46 fixed connection, set up two and place the unit and can make the structure of this application more stable, reduce the risk that second bottom end rail 38 warp.

The structure of the third fixing element 6 is the same as that of the second fixing element 4, and the details are not repeated in this application.

As shown in fig. 5 to 6, preferably, the first sling 26 is a steel sling, one end of the steel sling is fixedly connected to the bearing beam 22 through a fixing device, the fixing device includes a fixing pin 25 and two supporting members 24 arranged on the bearing beam 22 at intervals, the fixing pin 25 is fixedly arranged between the two supporting members 24, a first through hole 262 is arranged on the steel sling, and the fixing pin 25 passes through the first through hole 262. Specifically, the axial direction of the fixing pin 25 is parallel to the first direction.

Preferably, each support member 24 is provided with a third through hole, the fixing pin 25 is inserted into the third through holes of the two support members 24, the fixing pin 25 is detachably connected with the support members 24, and the first through holes 262 are provided in plurality along the length direction of the steel sling. Specifically, the fixing pin 25 may be fixedly connected to the supporting member 24 through a split pin, and the fixing pin 25 is inserted into different first through holes 262, so that the position of one end of the lower die longitudinal beam 36 away from the bridge span structure 1 in the vertical direction can be adjusted, thereby facilitating control of the line shape of the closure segment.

Preferably, the fixing device is fixedly arranged on the first upper cross beam 23, the length direction of the first upper cross beam 23 extends along the first direction, and the first upper cross beam 23 is fixedly arranged on the top surfaces of the bearing beams 22. Specifically, if this scheme does not set up first entablature 23, then require the quantity of third mounting 6 and the quantity looks adaptation of spandrel girder 22, so comparatively extravagant material increases the engineering time, and has set up first entablature 23 after, can set up a plurality of third mountings 6 in order to support first bottom end rail 34 on first entablature 23 to increase the intensity of first bottom end rail 34.

Preferably, one end of each upper die longitudinal beam 32, which is far away from the bridge structure 1, is fixedly connected to the second upper cross beam 7 through a second lifting appliance 27, the length direction of the second upper cross beam 7 extends along the first direction, and the second upper cross beam 7 is fixedly arranged on the top surfaces of the bearing beams 22.

Specifically, if this scheme does not set up second entablature 7, then require the quantity of mould longeron 32 and the quantity looks adaptation of spandrel girder 22, so comparatively extravagant material increases the engineering time, and has set up second entablature 7 after, can fix a plurality of mould longerons 32 on second entablature 7 to increase the intensity of whole device.

Preferably, the load beam 22 is a beret beam. Specifically, the Bailey beam is large in self rigidity, large in span and good in performance, and when the beam is 18m before closure section construction, two sides can be connected through self structural advantages to carry out overall linear control.

In the description of the present invention, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, orientations or positional relationships that are usually placed when the product of the present invention is used, or orientations or positional relationships that are usually understood by those skilled in the art, and such terms are only used for convenience of description and simplification of the description, and do not indicate or imply that the device or element indicated must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance. In this context, "parallel," "perpendicular," and the like are not strictly mathematical and/or geometric limitations, but also encompass tolerances as would be understood by one skilled in the art and permitted by fabrication or use.

It should be noted that, in the embodiments and features and technical solutions in the embodiments of the present invention may be combined with each other without conflict.

Claims (10)

1. A device for bridge closure construction, including two bridge structures (1) that will close the dragon, all be provided with pad roof beam (21) on two bridge structures (1), its characterized in that: further comprising at least two load-bearing beams (22), said load-bearing beams (22) being arranged spaced apart along a first direction, one end of the bearing beam (22) is arranged on a pad beam (21) on one of the bridge span structures (1), the other end of the bearing beam (22) is arranged on a pad beam (21) on the other bridge span structure (1), the top of each bridge span structure (1) is respectively and fixedly connected with at least two upper die longitudinal beams (32), one end of the upper mold longitudinal beam (32) far away from the bridge span structure (1) connected with the upper mold longitudinal beam extends towards the other bridge span structure (1), the upper mold longitudinal beams (32) on each bridge span structure (1) are arranged at intervals along a first direction, one end of each upper die longitudinal beam (32), which is far away from the bridge span structure (1) connected with the upper die longitudinal beam, is fixedly connected to the bearing beam (22) corresponding to the upper die longitudinal beam (32) through a second lifting appliance (27);

each bridge span structure (1) is fixedly connected with at least two lower die longitudinal beams (36) respectively, each lower die longitudinal beam (36) is located below the corresponding bridge span structure (1), one end, far away from the bridge span structure (1) connected with the lower die longitudinal beam (36), of each lower die longitudinal beam extends towards the other bridge span structure (1), the lower die longitudinal beams (36) are arranged at intervals along a first direction, and one end, far away from the bridge span structure (1) connected with the lower die longitudinal beam (36), of each lower die longitudinal beam (36) is fixedly connected to the bearing beam (22) corresponding to the lower die longitudinal beam (36) through a first lifting appliance (26);

the first direction is the width direction of the bridge span structure (1).

2. The apparatus for bridge closure construction according to claim 1, wherein: the second lifting appliance (27) is a first lifting rod, one end of the first lifting rod is fixedly connected to the bearing beam (22), the other end of the first lifting rod is fixedly connected with an annular first fixing piece (28), and the first fixing piece (28) is sleeved on the periphery of the upper die longitudinal beam (32).

3. The apparatus for bridge closure construction according to claim 2, wherein: one end of the upper die longitudinal beam (32) is fixedly connected to the bridge span structure (1) through a second suspension rod.

4. The apparatus for bridge closure construction according to claim 1, wherein: one end of the lower die longitudinal beam (36) is arranged on the first supporting device, and one end, far away from the bridge span structure (1) connected with the lower die longitudinal beam (36), of the lower die longitudinal beam is arranged on the second supporting device;

the first supporting device comprises at least two second fixing pieces (4) fixedly connected with the corresponding bridge span structure (1), the second fixing pieces (4) are arranged at intervals along the first direction, the first supporting device further comprises a second lower cross beam (38), one end of the second lower cross beam (38) is fixedly connected to one of the second fixing pieces (4), and the other end of the second lower cross beam (38) is fixedly connected to the other second fixing piece (4);

the second supporting device comprises at least two third fixing pieces (6), the third fixing pieces (6) are arranged at intervals along the first direction, each third fixing piece (6) is fixedly connected with the corresponding bearing beam (22) through a first lifting appliance (26), the second supporting device further comprises a first lower cross beam (34), one end of the first lower cross beam (34) is fixedly connected to one of the third fixing pieces (6), and the other end of the first lower cross beam (34) is fixedly connected to the other third fixing piece (6);

one end of the lower die longitudinal beam (36) is arranged on the second lower cross beam (38), and the other end of the lower die longitudinal beam (36) is arranged on the first lower cross beam (34).

5. The apparatus for bridge closure construction according to claim 4, wherein: the second fixing piece (4) is fixedly connected to the bridge span structure (1) through a third suspender (29).

6. The apparatus for bridge closure construction according to claim 4, wherein: first hoist (26) are the steel suspender, the one end of steel suspender is passed through fixing device fixed connection to on spandrel girder (22), fixing device includes fixed pin (25) and two support piece (24) of spaced setting on spandrel girder (22), fixed being provided with fixed pin (25) between two support piece (24), be provided with first through-hole (262) on the steel suspender, fixed pin (25) pass first through-hole (262).

7. The apparatus for bridge closure construction according to claim 6, wherein: each support piece (24) is provided with a third through hole, the fixing pin (25) is inserted into the third through holes in the two support pieces (24), the fixing pin (25) is detachably connected with the support pieces (24), and the first through holes (262) are provided with a plurality of through holes along the length direction of the steel hanging strip.

8. The apparatus for bridge closure construction according to claim 7, wherein: the fixing device is fixedly arranged on a first upper cross beam (23), the length direction of the first upper cross beam (23) extends along the first direction, and the first upper cross beam (23) is fixedly arranged on the top surfaces of the bearing beams (22).

9. The apparatus for bridge closure construction according to claim 8, wherein: one end, far away from the bridge span structure (1), of each upper die longitudinal beam (32) is fixedly connected to a second upper cross beam (7) through a second lifting appliance (27), the length direction of the second upper cross beam (7) extends along the first direction, and the second upper cross beam (7) is fixedly arranged on the top surfaces of the bearing beams (22).

10. The apparatus for bridge closure construction according to any one of claims 1 to 9, wherein: the bearing beam (22) is a Bailey beam.

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