CN217325001U - Detachable cantilever support for cantilever plate of composite structure bridge - Google Patents

Abstract

An embodiment of the utility model provides a dismantled and assembled cantilever crane for cantilever slab of composite construction bridge, the composite construction bridge includes steel girder and cantilever slab, dismantled and assembled cantilever crane includes backup pad and supporting shoe, the backup pad is used for detachably to install on the web of steel girder, the quantity of supporting shoe is two at least, two at least the supporting shoe along the length direction interval of cantilever slab sets up the upper surface of backup pad. Therefore, the utility model discloses a dismantled and assembled cantilever crane for cantilever plate of composite construction bridge has the advantage of simplifying construction steps, promoting the construction speed, reducing construction labour cost and supporting material.

Description

Detachable cantilever support for cantilever plate of composite structure bridge

Technical Field

The utility model relates to a bridge technical field, concretely relates to a dismantled and assembled cantilever support that is used for cantilever plate of integrated configuration bridge.

Background

The steel-concrete combined bridge is a bridge structure form which connects a steel beam and a concrete bridge deck into a whole through a shear connector and considers common stress. Compared with a steel structure bridge, the steel-concrete combined bridge has the advantages of small steel consumption, high rigidity, good compression stability and the like; compared with a concrete bridge, the combined bridge has the advantages of low structure height, small self weight, simple structure, convenience in construction, good stress performance and the like. In addition, the combined beam bridge adopts reasonable manufacturing and construction procedures, is convenient for industrial production, and has high field installation quality, low construction cost and high construction speed.

The cantilever plate of the concrete bridge deck poured at present needs to adopt a cantilever support formwork erecting method, the adopted support frame comprises a plurality of support rods, a supporting point stress process exists in the construction process, the deformation is large, and the problems of reducing the flatness and the stability of the concrete bridge deck poured at the later stage exist. In addition, in the related art, welding is mostly adopted for installation, and the support frame needs to be cut during disassembly, so that the structure of the steel main beam is damaged.

Disclosure of Invention

The present invention aims at solving at least one of the technical problems in the related art to a certain extent. To this end, embodiments of the present invention provide a removable outrigger for a cantilever plate of a composite structural bridge, wherein the composite structural bridge includes a steel girder and a cantilever plate.

The utility model discloses a dismantled and assembled cantilever brace for cantilever slab of composite construction bridge, including backup pad and supporting shoe, the backup pad is used for detachably to install on the web of steel girder, the quantity of supporting shoe is two at least, two at least the supporting shoe along the length direction interval of cantilever slab sets up the upper surface of backup pad.

The utility model discloses a dismantled and assembled cantilever crane for cantilever slab of composite construction bridge constitutes cantilever crane through backup pad and the supporting shoe that sets up, supports the mould of cantilever slab. When the cantilever plate is manufactured, a full-hall floor scaffold does not need to be set up any more, the supporting plate only needs to be fixed on the web plate of the steel main beam, the supporting block is placed on the upper surface of the supporting plate, the mode of setting up the full-hall floor scaffold is avoided being adopted for construction, the construction step of setting up the cantilever support is simplified, a large amount of labor cost is saved, and the construction speed is accelerated.

And simultaneously, adopt the utility model discloses a dismantled and assembled cantilever crane for cantilever plate of composite construction bridge with the backup pad with the web of steel girder links to each other, and the road surface under backup pad and the composite construction bridge has certain distance promptly, does not obstruct the passing of vehicle under the bridge, and consequently, the traffic influence under the bridge is less in the construction.

In addition, the supporting plate is detachably connected with the web plate of the steel main beam, the detachable cantilever support can be detached after construction of the corresponding supported cantilever plate is finished, the supporting plate and the supporting block can be recycled, and waste of materials is avoided.

Therefore, the utility model discloses a dismantled and assembled cantilever crane for cantilever plate of composite construction bridge has the advantage of simplifying construction steps, promoting the construction speed, reducing construction labour cost and supporting material.

In some embodiments, the support plate includes a fixing body for being detachably mounted on the web of the steel girder, and a support portion provided at an upper surface of the fixing body, the support portion having a width equal to or greater than a width of the upper surface of the fixing body, the support block being provided at the upper surface of the support portion.

In some embodiments, the width of the support portion is equal to or greater than the width of the support block.

In some embodiments, the fixing body includes a main body portion and a fixing portion detachably connected to the web of the steel girder, and a width of the fixing portion is greater than or equal to a thickness of the main body portion.

In some embodiments, the thickness of the main body portion in the direction extending outward from the main steel beam is constant or gradually reduced, and the length of the support plate is consistent with the length of the cantilever plate.

In some embodiments, the upper surface of the main body portion is disposed horizontally, and the height of the main body portion decreases in a direction from near to the fixing portion to far from the fixing portion.

In some embodiments, the fixing portion has a first side surface and a second side surface which are opposite to each other, the first side surface abuts against the web of the steel main beam, the second side surface abuts against the fixing portion, the fixing portion is divided into a first fixing area and a second fixing area by the main body portion, and a fixing member is provided in each of the first fixing area and the second fixing area.

In some embodiments, the fixing member is a bolt penetrating at least a portion of the web of the steel girder and the fixing portion, and the number of bolts set in the first fixing region and the second fixing region is the same.

In some embodiments, the support block is a batten.

In some embodiments the removable outrigger for a cantilevered slab of a composite structural bridge further comprises a formwork that is draped over the upper surface of the support blocks.

Drawings

Fig. 1 is a construction process diagram of a cantilever plate of a composite structural bridge according to an embodiment of the present invention.

Fig. 2 is a perspective view of a support plate according to an embodiment of the present invention.

Fig. 3 is another perspective view of the support plate according to the embodiment of the present invention.

Fig. 4 is a left side view of the support plate of an embodiment of the present invention.

Reference numerals:

a removable cantilever support 100; a steel main beam 200; a cantilever plate 300;

a support plate 1; a fixed body 11; a main body portion 111; a fixed portion 112; a first side 1121; a second side 1122; a support portion 12;

a support block 2;

a bolt 3;

a template 4.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

A removable outrigger 100 for a cantilever plate of a composite structural bridge, which includes a steel girder 200 and a cantilever plate 300, according to an embodiment of the present invention is described below with reference to fig. 1 to 4.

The utility model discloses a dismantled and assembled cantilever crane 100 for cantilever plate of composite construction bridge, including backup pad 1 and supporting shoe 2.

The support plate 1 is used for being detachably mounted on a web plate of the steel girder 200, the number of the support blocks 2 is at least two, and at least two support blocks 2 are arranged on the upper surface of the support plate 1 at intervals along the length direction of the cantilever plate.

The utility model discloses a backup pad 1 and supporting shoe 2 that are used for dismantled and assembled cantilever beam support 100 of cantilever beam plate of composite construction bridge to set up are used for the support when the cantilever beam plate of composite construction bridge makes, and then support the mould of cantilever beam plate 300. When preparation cantilever slab 300, no longer need set up the full hall scaffold that falls to the ground, only need fix backup pad 1 on the web of steel girder 200, place supporting shoe 2 again in the upper surface of backup pad 1 and can realize the support to the mould of cantilever slab 300, avoid adopting the mode of setting up the full hall scaffold that falls to the ground to be under construction, simplified the construction step of setting up cantilever support, saved a large amount of labour cost for construction speed.

And simultaneously, adopt the utility model discloses a dismantled and assembled cantilever support 100 for cantilever plate of composite construction bridge links to each other backup pad 1 with the web of steel girder 200, and the road surface under backup pad 1 and the composite construction bridge has certain distance promptly, does not hinder the current of vehicle under the bridge. Therefore, the traffic impact under the bridge is small during construction.

In addition, the supporting plate 1 is detachably connected with the web of the steel girder 200, and after the construction of the cantilever plate 300 is finished, the detachable cantilever support 100 is detached, so that the supporting plate 1 and the supporting block 2 can be reused, and the waste of materials is avoided.

Therefore, the utility model discloses a dismantled and assembled cantilever crane 100 for cantilever plate of integrated configuration bridge has the simplified construction step, reduces construction labour cost and supporting material's cost and promotes construction speed's effect.

Alternatively, the heights of the plurality of supporting blocks 2 may be different, and the height of each supporting block 2 may be selected according to the height between the upper surface of the supporting plate 1 and the lower surface of the corresponding cantilever plate 300, which has an advantage of high construction flexibility.

As shown in fig. 2 to 4, the support plate 1 includes a fixing body 11 and a support portion 12, the fixing body 11 is configured to be detachably mounted on a web of the steel main beam 200, the support portion 12 is disposed on an upper surface of the fixing body 11, a width of an upper surface of the support portion 12 is greater than or equal to a width of an upper surface of the fixing body 11, and the support block 2 is disposed on an upper surface of the support portion 12. In other words, the thickness (e.g., the front-rear direction in fig. 3) of the fixing body 11 is equal to or less than the width of the support portion 12.

The utility model discloses a dismantled and assembled cantilever brace 100 for cantilever plate of composite structure bridge passes through the width of the upper surface of the fixed main part 11 of the width more than or equal to of supporting part 12, can provide enough big supporting area for supporting shoe 2, promotes the firm degree that supports this supporting shoe 2. Meanwhile, the thickness (e.g., the vertical direction in fig. 3) of the fixing body 11 is less than or equal to the width (e.g., the vertical direction in fig. 3) of the supporting portion 12, so that the overall weight of the supporting plate 1 can be reduced and the amount of raw materials required for manufacturing the supporting plate 1 can be reduced on the premise that the supporting plate 1 can bear a certain shearing force and the supporting area provided by the supporting block 2 is appropriate.

Alternatively, the raw material of each of the fixing body 11 and the supporting portion 12 is steel, and the fixing body 11 and the supporting portion 12 are welded or integrally formed.

The width of the upper surface of the support portion 12 is equal to or greater than the width of the lower surface of the support block 2. It is possible to provide a sufficient supporting area for the supporting block 2, thereby improving the stability of supporting the supporting block 2.

As shown in fig. 2 to 4, the fixing body 11 includes a main body portion 111 and a fixing portion 112, the fixing portion 112 is detachably connected to the web of the steel girder 200, and the width of the fixing portion 112 is equal to or greater than the thickness of the main body portion 111. The width direction of the fixing portion 112 is the front-rear direction shown in fig. 3, and the thickness of the main body portion 111 is the front-rear direction in fig. 3.

The utility model discloses a dismantled and assembled cantilever brace 100 for cantilever plate of composite structure bridge is through the thickness with the width more than or equal to main part 111 of fixed part 112, can provide the fixed space for being connected between the web of fixed part 112 and steel girder 200, promotes the area of contact between the web of fixed part 112 and steel girder 200, and then has promoted the connection steadiness between backup pad 1 and the steel girder 200.

As shown in fig. 2 to 4, the thickness of the main body 111 in the direction extending outward from the steel main beam 200 is constant or gradually reduced, and the length of the support plate 1 is equal to that of the cantilever plate.

Alternatively, the thickness of the main body portion 111 from the steel main beam 200 in a direction away from the steel main beam 200 is kept constant.

For example, in other embodiments, as shown in fig. 2 to 4, the thickness of the main body 111 decreases from the direction of the main beam 200 away from the main beam 200, and the length of the support plate 1 corresponds to the length of the cantilever plate. At one end (e.g., the right end shown in fig. 3) of the main body 111 far from the steel main beam 200, the force applied to the main body 111 is smaller than the force applied to the end (e.g., the left end shown in fig. 3) of the main body 111 near the steel main beam 200, so that the thickness of the main body 111 in the outward extending direction from the steel main beam 200 can be gradually reduced on the premise of ensuring the stability of the supporting force, thereby further reducing the weight of the detachable cantilever support 100 and improving the stability of the installation. And the material consumption for manufacturing the support frame is reduced, and the cost is saved.

As shown in fig. 2 to 4, the upper surface of the main body portion 111 is disposed horizontally, and the height of the main body portion 111 (the dimension of the main body portion 111 in the up-down direction) decreases in a direction from near the fixing portion 112 to far from the fixing portion 112 (in the longitudinal direction thereof).

The utility model discloses a dismantled and assembled cantilever crane 100 that is used for cantilever slab of integrated configuration bridge passes through the upper surface of main part 111 from being close to fixed part 112 to keeping away from the highly reducing of 112 direction downwardly extending of fixed part, further alleviates the whole weight of support, can reduce the consumptive material volume of preparation support frame under the prerequisite that the assurance supports the atress firm, has the advantage of saving the cost.

Alternatively, the upper surface of the main body portion 111 is tapered in height extending straight downward from the direction close to the fixing portion 112 to the direction away from the fixing portion 112. It is understood that the lower surface of the body portion 111 is a slope.

The height of the upper surface of the main body 111 extending from a side close to the fixing portion 112 to a right lower side is identical to the height of the fixing portion 112.

As shown in fig. 1 to 4, the fixing portion 112 has a first side surface 1121 and a second side surface 1122 which are oppositely arranged, the first side surface 1121 abuts against the web of the steel main beam 200, the second side surface 1122 abuts against the fixing portion 112, the fixing portion 112 is divided into a first fixing area and a second fixing area by the main body portion 111, and a fixing member penetrating through a portion of the steel main beam and the fixing portion is disposed between each of the first fixing area and the second fixing area and the steel main beam 200. In other words, the fixing portion 112 is provided with a fixing member in a region of the main body portion 111.

The utility model discloses a dismantled and assembled cantilever brace 100 that is used for cantilever slab of integrated configuration bridge is located the both sides of main part 111 through fixed part 112 and is equipped with the mounting, can promote the homogeneity of the web junction atress of backup pad 1 and steel girder 200, and then promotes the fastness that backup pad 1 is fixed.

As shown in fig. 1 to 4, the fixing member is a bolt 3, the bolt 3 penetrates through at least a portion of the web of the steel girder 200 and the fixing portion 112, and the number of the bolts 3 set in the first fixing area and the second fixing area is the same.

The utility model discloses a dismantled and assembled cantilever crane 100 for cantilever plate of composite construction bridge has the advantage that raw and other materials are easily obtained and the structure is simple and convenient through setting up the mounting into bolt 3.

Alternatively, the number of bolts 3 is 4 or more.

Optionally, the bolt 3 has a size of M16.

As shown in fig. 1, the supporting block 2 is a batten. Set up the supporting shoe 2 into the flitch, have the holistic weight that alleviates this dismantled and assembled cantilever support 100, can reduce the degree of difficulty of construction and promote the advantage of the steadiness of construction.

As shown in fig. 1, the cantilever plate for a composite structural bridge according to the embodiment of the present invention further includes a formwork 4, and the formwork 4 is lapped on the upper surface of the supporting block 2. The formwork 4 is arranged to provide support for the construction of the cast cantilever plate 300.

Optionally, the formwork 4 is a wooden formwork. The shearing force borne by the supporting plate 1 during supporting is reduced, and the stability of the structure is improved.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless explicitly defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the present disclosure, the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims (10)

1. A removable outrigger for a cantilevered slab of a composite structural bridge, the composite structural bridge comprising a steel girder and a cantilevered slab, the removable outrigger comprising:

the supporting plate is used for being detachably mounted on a web plate of the steel main beam; and

the number of the supporting blocks is at least two, and the supporting blocks are arranged on the upper surface of the supporting plate at intervals along the length direction of the cantilever plate.

2. The removable outrigger for a cantilever plate of a composite structural bridge of claim 1, wherein the supporting plate comprises a fixing body for being detachably mounted on a web of the steel girder and a supporting portion provided on an upper surface of the fixing body, the supporting portion having a width equal to or greater than a width of the upper surface of the fixing body, the supporting block being provided on an upper surface of the supporting portion.

3. The removable outrigger for a cantilevered slab of a composite structural bridge of claim 2 wherein the width of the support section is greater than or equal to the width of the support block.

4. The removable outrigger for a cantilevered slab of a composite structural bridge of claim 2 wherein the fixed body includes a main body portion and a fixed portion, the fixed portion being removably attached to the web of the steel main beam, the fixed portion having a width greater than or equal to the main body portion.

5. The removable outrigger for a cantilevered slab of a composite structural bridge of claim 4 wherein the body portion has a constant or decreasing thickness in the direction of extension outwardly from the steel girder, and the support plate has a length corresponding to the length of the cantilevered slab.

6. The removable outrigger for a cantilevered slab of a composite structural bridge of claim 4 wherein the upper surface of the body section is horizontally disposed and the height of the body section decreases in a direction from proximate to the fixed section to distal from the fixed section.

7. The removable outrigger for a cantilevered slab of a composite structural bridge of claim 6 wherein the anchor has first and second opposing sides, the first side abutting the web of the steel girder, the second side abutting the anchor, the anchor being divided by the body portion into first and second anchor regions, each of the first and second anchor regions having an anchor.

8. The removable outrigger for a cantilevered slab of a composite structural bridge of claim 7 wherein the fasteners are bolts that extend through at least a portion of the web of the steel spar and through the fixing sections, the number of bolts set in the first and second fixing sections being the same.

9. The removable outrigger for a cantilevered slab of a composite structural bridge of any of claims 1-7 wherein the support block is a batten.

10. The removable outrigger for a cantilevered slab of a composite structural bridge of any one of claims 1-7, further comprising a template that is draped over the upper surface of the support block.

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