CN211285219U - Arch structure with mixed reinforced concrete plate girders - Google Patents
Arch structure with mixed reinforced concrete plate girders Download PDFInfo
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- CN211285219U CN211285219U CN201921994233.2U CN201921994233U CN211285219U CN 211285219 U CN211285219 U CN 211285219U CN 201921994233 U CN201921994233 U CN 201921994233U CN 211285219 U CN211285219 U CN 211285219U
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Abstract
The utility model discloses a reinforced concrete plate truss mixed arch structure, which adopts a first upper chord steel pipe, a second upper chord steel pipe, a first connecting rod and a second connecting rod as the framework of a top plate, a first lower chord steel pipe, a second lower chord steel pipe, a third connecting rod and a fourth connecting rod as the framework of a bottom plate, and web members as the framework of a web plate, wherein the first upper chord steel pipe, the second upper chord steel pipe, the first lower chord steel pipe and the second lower chord steel pipe are all filled with concrete, and outer concrete is poured outside the framework to form a closed box-shaped section formed by continuous concrete plates to participate in stress, and a truss is connected between the second upper chord steel pipe and the corresponding second lower chord steel pipe to be used as the inner support of the box-shaped structure, improve the torsion-resistant inertia moment during hoisting, the inner truss does not need to be wrapped with concrete, effectively improve the construction efficiency, reduce the construction difficulty and reduce the quality control links, the outer covering arch forming is fast, the construction risk is reduced, the construction period is greatly shortened, and the construction cost is saved.
Description
Technical Field
The utility model relates to a bridge engineering technical field, in particular to arch structure that reinforced concrete plate purlin mixes.
Background
The main arch box type structure of the arch bridge at home and abroad is mostly of a reinforced concrete structure, a single-box single-chamber structure and a single-box multi-chamber structure are adopted, and a web plate is usually added in a box chamber to improve the rigidity of the section of the box type structure.
In construction, the arch ring framework is usually installed into an arch, and then reinforced concrete is wrapped outside the top plate, the bottom plate and all web plates to form a box-type main arch. But because the arch structure is the arc structure, it is higher to set up the template degree of difficulty at the inside position of arch case structure, and the template expense is higher to pour the difficulty, difficult pouring is closely knit, therefore construction cycle is longer, appears quality problems easily, reduces the reliability of bridge.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the main hunch box structure among the prior art and structural outsourcing concrete structure construction degree of difficulty is big, with high costs, the cycle length, construction quality is difficult for above-mentioned not enough such as control at the web, provides a mixed hunch structure of reinforced concrete plate purlin.
In order to achieve the above object, the present invention provides the following technical solutions:
an arch structure with a mixed reinforced concrete plate girder comprises a body with a box-shaped structure, wherein the body comprises a top plate, a bottom plate, two webs and a plurality of web pipes, and the top plate, the bottom plate and all the webs are reinforced concrete members;
two ends of the top plate are respectively provided with two first upper chord steel pipes, two second upper chord steel pipes are arranged between the two first upper chord steel pipes, a first connecting rod is connected between the adjacent first upper chord steel pipes and the adjacent second upper chord steel pipes, a second connecting rod is connected between the two second upper chord steel pipes, and concrete is filled in all the first upper chord steel pipes and all the second upper chord steel pipes;
two ends of the bottom plate are respectively and correspondingly provided with two first lower chord steel pipes, two second lower chord steel pipes are correspondingly arranged between the two first lower chord steel pipes, a third connecting rod is connected between the adjacent first lower chord steel pipes and the adjacent second lower chord steel pipes, a fourth connecting rod is connected between the two second lower chord steel pipes, and concrete is filled in all the first lower chord steel pipes and all the second lower chord steel pipes;
a web member is connected between the first upper chord steel pipe and the corresponding first lower chord steel pipe, and a web member is connected between the second upper chord steel pipe and the corresponding second lower chord steel pipe;
the top plate is formed by concrete poured in the curved surface of the two first upper chord steel tubes, the top plate wraps all the first upper chord steel tubes, all the second upper chord steel tubes, all the first connecting rods and all the second connecting rods, the bottom plate wraps all the first lower chord steel tubes, all the second lower chord steel tubes, all the third connecting rods and all the fourth connecting rods, the corresponding web plates are formed by the concrete poured in the curved surface of the first upper chord steel tubes and the corresponding first lower chord steel tubes, and the corresponding web plates wrap all the corresponding web rods.
The arch structure of the reinforced concrete plate truss mixed structure adopts a first upper chord steel pipe, a second upper chord steel pipe, a first connecting rod and a second connecting rod as the framework of a top plate, a first lower chord steel pipe, a second lower chord steel pipe, a third connecting rod and a fourth connecting rod as the framework of a bottom plate and a web member as the framework of a web plate, all parts are prefabricated and spliced into an integral framework in blocks and sections, the processing is convenient, the structure is stable, the first upper chord steel pipe, the second upper chord steel pipe, the first lower chord steel pipe and the second lower chord steel pipe are steel pipes arranged along the longitudinal bridge direction, the first connecting rod, the second connecting rod, the third connecting rod and the fourth connecting rod are connecting members arranged along the transverse bridge direction and are arranged between the corresponding upper chord pipes or lower chord pipes at intervals, concrete is filled in the first upper chord steel pipe, the second upper chord steel pipe, the first lower chord steel pipe and the second lower chord steel pipe, and the exterior reinforced concrete is poured outside the framework to form a closed box-shaped section formed by continuous concrete panels to participate in stress, the exterior arch forming speed is high, the template is convenient to erect, a truss is connected between the second upper chord steel tube and the corresponding second lower chord steel tube to be used as the internal support of the box-shaped structure, the torsional moment of inertia during hoisting is improved, the web members of the internal truss are made of steel tubes, the stability of the web members are high, strong and weak shafts are not present, the exterior reinforced concrete is not required to be coated, the construction efficiency is effectively improved, the construction difficulty is reduced, quality control links are reduced, the exterior arch forming speed is high, the construction risk is reduced, the construction period is greatly shortened, the construction cost is saved, the rigidity and the bearing capacity can be effectively met, the structure weight can be reduced, the number of segment assembly is reduced, the installation difficulty is reduced, the safety risk in the construction stage is reduced, the construction period is shortened, and the anti-seismic performance is obviously improved.
Preferably, the body comprises at least two segments.
Preferably, the first connecting rods at the two ends of the segment comprise channel steel members, the rest of the first connecting rods comprise angle steel members, the third connecting rods at the two ends of the segment comprise channel steel members, and the rest of the third connecting rods comprise angle steel members; all the second connecting rods comprise channel steel members, all the fourth connecting rods comprise channel steel members, the first connecting rods are connected with the corresponding first upper chord steel tubes and the corresponding second upper chord steel tubes in a welded mode, the third connecting rods are connected with the corresponding first lower chord steel tubes and the corresponding second lower chord steel tubes in a welded mode, the second connecting rods are connected with the second upper chord steel tubes in a welded mode, and the fourth connecting rods are connected with the second lower chord steel tubes in a welded mode.
For transportation hoist and mount convenience, the body divides into a plurality of segmental along the bridge length direction, the first connecting rod and the third connecting rod of the both ends of every segmental all contain the channel-section steel component, the first connecting rod and the third connecting rod of all the other positions all contain the angle steel component to strengthen the rigidity of segmental tip.
Further preferably, the second connecting rod comprises two second connecting rod units, each second connecting rod unit comprises two welded channel steel members, and two adjacent second connecting rod units are respectively bolted to the connecting plate.
By adopting the arrangement mode, the box-type body can be hoisted by left and right sections conveniently, namely, each section comprises a left part and a right part which are assembled to form the box-type body, and hoisting is further facilitated.
Further preferably, a first inclined strut is connected between two adjacent first connecting rods located on the same side in each segment, and a second inclined strut is connected between two adjacent third connecting rods located on the same side in each segment.
And the first inclined strut and the second inclined strut are used for further enhancing the rigidity of the structure, and are also positioned in the corresponding top plate concrete and the corresponding bottom plate concrete.
Preferably, each said web member comprises an angle member.
Preferably, the box structure is internally provided with partition plates at intervals, the partition plates are wrapped with concrete, and the partition plates are provided with holes.
By adopting the arrangement mode, the torsion resistance during hoisting is further improved.
Preferably, the strength of the concrete in the first upper chord steel pipe, the strength of the concrete in the second upper chord steel pipe, the strength of the concrete in the first lower chord steel pipe and the strength of the concrete in the second lower chord steel pipe are the same, and the strength of the concrete in the top plate, the bottom plate and the web plate is less than that of the concrete in the first upper chord steel pipe.
The strength of the outer concrete is lower than that of the concrete in the framework, and cost saving is facilitated.
Preferably, the diameters of all the first upper chord steel tubes, the diameters of all the first lower chord steel tubes, the diameters of all the second upper chord steel tubes and the diameters of all the second lower chord steel tubes are the same, the diameters of all the web tubes are the same, and the diameters of the web tubes are smaller than the diameters of the first upper chord steel tubes.
To sum up, compare with prior art, the beneficial effects of the utility model are that:
1. adopt a mixed hunch structure of reinforced concrete plate purlin, can effectively satisfy rigidity and bearing capacity, can lighten structure weight again, reduce the installation degree of difficulty, reduce the safe risk in construction stage, improve the reliability of structure, shorten construction cycle, show and promote anti-seismic performance.
Description of the drawings:
fig. 1 is a schematic structural view of a reinforced concrete slab-truss hybrid arch structure according to the present invention;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;
FIG. 3 is a cross-sectional view taken at B-B in FIG. 1;
FIG. 4 is a schematic structural view of the skeleton of FIG. 3;
fig. 5 is a structural plan view of the framework of the assembled arch structure of the present invention;
FIG. 6 is a view from the direction B of FIG. 5;
fig. 7 is a cross-sectional view taken at a-a in fig. 5.
The labels in the figure are: 1-top plate, 2-bottom plate 3-web plate, 41-first upper chord steel pipe, 42-second upper chord steel pipe, 51-first connecting rod, 52-second connecting rod, 53-third connecting rod, 54-fourth connecting rod, 61-first lower chord steel pipe, 62-second lower chord steel pipe, 7-web member, 8-web member and 91-first diagonal brace.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments. However, it should not be understood that the scope of the above-mentioned subject matter is limited to the following embodiments, and all the technologies realized based on the present invention are within the scope of the present invention.
Example 1
As shown in fig. 1-3, the arch structure of a reinforced concrete plate truss hybrid according to the present invention comprises a body of a box-type structure, wherein the body comprises a top plate 1, a bottom plate 2, two webs 3 and a plurality of web pipes 8, the top plate 1, the bottom plate 2 and the two webs 3 are integrally cast and formed reinforced concrete members, a framework formed by combining steel pipes and trusses is arranged in the box-type concrete structure, and preferably, the body comprises at least two segments, which is convenient for transportation and hoisting and casting in sections on site;
two ends of the top plate 1 are respectively provided with two first upper chord steel tubes 41, two second upper chord steel tubes 42 are arranged between the two first upper chord steel tubes 41, a first connecting rod 51 is connected between the adjacent first upper chord steel tubes 41 and the adjacent second upper chord steel tubes 42, a second connecting rod 52 is connected between the two second upper chord steel tubes 42, all the first upper chord steel tubes 41 and all the second upper chord steel tubes 42 are filled with concrete, the first upper chord steel tubes 41 and the second upper chord steel tubes 42 are steel tubes arranged along a longitudinal bridge direction, and the first connecting rods 51 and the second connecting rods 52 are connecting members arranged along a transverse bridge direction;
two ends of the bottom plate 2 are respectively and correspondingly provided with two first lower chord steel tubes 61, two second lower chord steel tubes 62 are correspondingly arranged between the two first lower chord steel tubes 61, each second lower chord steel tube 62 is correspondingly arranged with one second upper chord steel tube 42, a third connecting rod 53 is connected between the adjacent first lower chord steel tube 61 and the second lower chord steel tube 62, a fourth connecting rod 54 is connected between the two second lower chord steel tubes 62, all the first lower chord steel tubes 61 and all the second lower chord steel tubes 62 are filled with concrete, the first lower chord steel tube 61 and the second lower chord steel tubes 62 are steel tubes arranged along the longitudinal bridge direction, and the third connecting rod 53 and the fourth connecting rod 54 are connecting members arranged along the transverse bridge direction;
a web member 7 is connected between the first upper chord steel tube 41 and the corresponding first lower chord steel tube 61, the web member 7 includes a vertical web member and an oblique web member, each web member 7 includes an angle steel member, for example, each web member 7 employs two angle steel members, as shown in fig. 6; the web pipes 8 are connected between the second upper chord steel pipes 42 and the corresponding second lower chord steel pipes 62, each web pipe 8 comprises a vertical web pipe and an inclined web pipe, as shown in fig. 7, preferably, steel partition plates are arranged inside the box-shaped structure at intervals, the peripheries of the partition plates are welded with frameworks in the top plate 1, the bottom plate 2 and the web plate 3, panels of the partition plates are welded with the corresponding vertical web pipes, the partition plates are wrapped with concrete, and holes are formed in the partition plates, as shown in fig. 2-3, so that the torsion resistance during hoisting is further improved, which is not shown in fig. 6-7.
The top plate 1 is formed by concrete poured in the curved surface of the two first upper chord steel tubes 41, the top plate 1 wraps all the first upper chord steel tubes 41, all the second upper chord steel tubes 42, all the first connecting rods 51 and all the second connecting rods 52, the bottom plate 2 is formed by concrete poured in the curved surface of the two first lower chord steel tubes 61, the bottom plate 2 wraps all the first lower chord steel tubes 61, all the second lower chord steel tubes 62, all the third connecting rods 53 and all the fourth connecting rods 54, the corresponding web plates 3 are formed by concrete poured in the curved surface of the first upper chord steel tubes 41 and the corresponding first lower chord steel tubes 61, and the corresponding web plates 7 are wrapped by the web plates 3.
As shown in fig. 3-4, the first upper chord steel pipe 41, the second upper chord steel pipe 42, the first connecting rod 51 and the second connecting rod 52 are used as the framework of the top plate 1, the first lower chord steel pipe 61, the second lower chord steel pipe 62, the third connecting rod 53 and the fourth connecting rod 54 are used as the framework of the bottom plate 2, the web member 7 is used as the framework of the web plate 3, and each part is prefabricated and spliced into an integral framework in a block and section manner, so that the processing is convenient, and the structure is stable.
Preferably, the strength of the concrete in the first upper chord steel tube 41, the strength of the concrete in the second upper chord steel tube 42, the strength of the concrete in the first lower chord steel tube 61 and the strength of the concrete in the second lower chord steel tube 62 are the same, and the strength of the concrete in the top plate 1, the bottom plate 2 and the web plate 3 is less than that of the concrete in the first upper chord steel tube 41, that is, the strength of the outer concrete is less than that of the concrete in the framework, which is beneficial to saving cost; preferably, the diameters of all the first upper chord steel tubes 41, the diameters of all the first lower chord steel tubes 61, the diameters of all the second upper chord steel tubes 42 and the diameters of all the second lower chord steel tubes 62 are the same, the diameters of all the web tubes 8 are the same, and the diameters of the web tubes 8 are smaller than the diameters of the first upper chord steel tubes 41.
Usually, an arch bridge comprises two arch structures which are spliced into an arch, namely two bodies, a transverse connecting system is arranged between the two bodies, as shown in fig. 5, the first connecting rods 51 at the two ends of the segment comprise channel members, such as four channel members welded together, the rest of the first connecting rods 51 comprise angle steel members, such as four angle steel members welded together, the first connecting rods 51 are welded with the corresponding first upper chord steel pipe 41 and second upper chord steel pipe 42, all the second connecting rods 52 comprise channel steel members, if two angle steel members are adopted for welding connection, the second connecting rod 52 is welded with the two second upper chord steel tubes 42, a first inclined strut 91 is connected between two adjacent first connecting rods 51 positioned on the same side in each section, and the directions of all the first inclined struts 91 are consistent; similarly, the third connecting rods 53 at the two ends of the segment comprise channel steel members, such as four channel steel members welded together, the rest of the third connecting rods 53 comprise angle steel members, such as four angle steel members welded together, all the fourth connecting rods 54 comprise channel steel members, such as two angle steel members welded together, the third connecting rods 53 are welded together with the corresponding first and second lower chord steel pipes 61 and 62, the fourth connecting rods 54 are welded together with the two second lower chord steel pipes 62, a second diagonal brace is connected between two adjacent third connecting rods 53 on the same side in each segment, and since the body comprises a plurality of segments, the first connecting rods 51 and the third connecting rods 53 at the two ends of each segment are reinforced to ensure the rigidity of the connecting ends of the segments, the first diagonal brace 91 and the second diagonal brace are used for further enhancing the rigidity of the concrete structure.
In order to further reduce the hoisting weight, each second connecting rod 52 comprises two second connecting rod units, each second connecting rod unit comprises two welded channel steel members, and two adjacent second connecting rod units are respectively bolted to the connecting plates, that is, each section comprises a left part and a right part which are assembled together.
By adopting the arch structure of the reinforced concrete plate girder mixture, the first upper chord steel pipe 41, the second upper chord steel pipe 42, the first lower chord steel pipe 61 and the second lower chord steel pipe 62 are all filled with concrete, and the outer-wrapped reinforced concrete is poured outside the framework to form a closed box-shaped section to participate in stress, the outer-wrapped arching speed is high, the template is convenient to set up, and the truss is connected between the second upper chord steel pipe 42 and the corresponding second lower chord steel pipe 62 and used as the inner support of the box-shaped structure, so that the torsional moment of inertia during hoisting is improved, the inner truss does not need to be wrapped with concrete, the construction efficiency is effectively improved, the construction difficulty is reduced, the quality control link is reduced, the outer-wrapped arching speed is high, the construction risk is reduced, the construction period is greatly shortened, the construction cost is saved, and the structure can effectively meet the rigidity and the bearing capacity, and the structure weight can be reduced, the installation difficulty is reduced, the safety risk in the construction stage is reduced, the reliability of the structure is improved, the construction period is shortened, and the anti-seismic performance is obviously improved.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (9)
1. The arch structure with the mixed reinforced concrete plate girders is characterized by comprising a body with a box-shaped structure, wherein the body comprises a top plate (1), a bottom plate (2), two webs (3) and a plurality of web pipes (8), and the top plate (1), the bottom plate (2) and all the webs (3) are reinforced concrete members;
two ends of the top plate (1) are respectively provided with two first upper chord steel pipes (41), two second upper chord steel pipes (42) are arranged between the two first upper chord steel pipes (41), a first connecting rod (51) is connected between the adjacent first upper chord steel pipes (41) and the adjacent second upper chord steel pipes (42), a second connecting rod (52) is connected between the two second upper chord steel pipes (42), and concrete is filled in all the first upper chord steel pipes (41) and all the second upper chord steel pipes (42);
two ends of the bottom plate (2) are respectively and correspondingly provided with two first lower chord steel tubes (61), two second lower chord steel tubes (62) are correspondingly arranged between the two first lower chord steel tubes (61), a third connecting rod (53) is connected between the adjacent first lower chord steel tubes (61) and the adjacent second lower chord steel tubes (62), a fourth connecting rod (54) is connected between the two second lower chord steel tubes (62), and concrete is filled in all the first lower chord steel tubes (61) and all the second lower chord steel tubes (62);
a web member (7) is connected between the first upper chord steel pipe (41) and the corresponding first lower chord steel pipe (61), and a web member (8) is connected between the second upper chord steel pipe (42) and the corresponding second lower chord steel pipe (62);
the concrete poured in the curved surface where the two first upper chord steel pipes (41) are positioned forms the top plate (1), the top plate (1) wraps all the first upper chord steel tubes (41), all the second upper chord steel tubes (42), all the first connecting rods (51) and all the second connecting rods (52), and concrete poured in a curved surface where the two first lower chord steel tubes (61) are located forms the bottom plate (2), the bottom plate (2) wraps all the first lower-chord steel tubes (61), all the second lower-chord steel tubes (62), all the third connecting rods (53) and all the fourth connecting rods (54), the first upper chord steel pipe (41) and the corresponding concrete poured in the curved surface of the first lower chord steel pipe (61) form the corresponding web (3), and the web (3) wraps all the corresponding web members (7).
2. A dome structure in accordance with claim 1 wherein the body comprises at least two segments.
3. Arch structure according to claim 2, wherein the first connecting rods (51) at both ends of a segment comprise channel steel members, the remaining first connecting rods (51) comprise angle steel members, the third connecting rods (53) at both ends of a segment comprise channel steel members, and the remaining third connecting rods (53) comprise angle steel members; all the second connecting rods (52) comprise channel steel members, all the fourth connecting rods (54) comprise channel steel members, the first connecting rods (51) are connected with the corresponding first upper chord steel pipes (41) and second upper chord steel pipes (42) in a welding mode, the third connecting rods (53) are connected with the corresponding first lower chord steel pipes (61) and second lower chord steel pipes (62) in a welding mode, the second connecting rods (52) are connected with the second upper chord steel pipes (42) in a welding mode, and the fourth connecting rods (54) are connected with the second lower chord steel pipes (62) in a welding mode.
4. Arch structure according to claim 3, characterized in that said second connecting rod (52) comprises two second connecting rod units, each comprising two welded-connection channel members, two adjacent second connecting rod units being bolted to a connecting plate, respectively.
5. Arch according to claim 2, wherein a first diagonal brace (91) is connected between two adjacent first connecting rods (51) of each segment located on the same side, and a second diagonal brace is connected between two adjacent third connecting rods (53) of each segment located on the same side.
6. Arch structure according to claim 1, characterised in that each of said web members (7) comprises an angle member.
7. An arch structure according to any of claims 1 to 6, wherein the box-like structure is internally spaced by a partition.
8. Arch structure according to any of claims 1-6, characterized in that the strength of the concrete in the first upper chord steel tube (41), the strength of the concrete in the second upper chord steel tube (42), the strength of the concrete in the first lower chord steel tube (61) and the strength of the concrete in the second lower chord steel tube (62) are all the same, and the concrete strength of the top plate (1), bottom plate (2) and web (3) are all less than the concrete strength of the first upper chord steel tube (41).
9. Arch structure according to any of claims 1-6, characterized in that the diameter of all the first upper chord steel tubes (41), the diameter of all the first lower chord steel tubes (61), the diameter of all the second upper chord steel tubes (42) and the diameter of all the second lower chord steel tubes (62) are identical, the diameter of all the web tubes (8) is identical, the diameter of the web tubes (8) is smaller than the diameter of the first upper chord steel tubes (41).
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| CN201921994233.2U CN211285219U (en) | 2019-11-18 | 2019-11-18 | Arch structure with mixed reinforced concrete plate girders |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110670475A (en) * | 2019-11-18 | 2020-01-10 | 四川省公路规划勘察设计研究院有限公司 | Arch structure with mixed reinforced concrete plate girders |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110670475A (en) * | 2019-11-18 | 2020-01-10 | 四川省公路规划勘察设计研究院有限公司 | Arch structure with mixed reinforced concrete plate girders |
| CN110670475B (en) * | 2019-11-18 | 2024-06-21 | 四川省公路规划勘察设计研究院有限公司 | Arch structure for reinforced concrete plate truss mixing |
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