CN221798118U - Continuous composite girder bridge - Google Patents

Abstract

The utility model discloses a continuous composite beam bridge, which relates to the field of composite beam bridges, including a hollow beam body, wherein the upper end of the hollow beam body is equidistantly formed with multiple groups of first arc straight grooves and second arc straight grooves, wherein the multiple groups of the first arc straight grooves and second arc straight grooves are mutually staggered and respectively penetrate to both sides of the hollow beam body, and the bottom of the arc ends of the multiple groups of the first arc straight grooves and second arc straight grooves are correspondingly formed with multiple groups of first circular hole grooves and second circular hole grooves. The utility model connects multiple groups of hollow beam bodies by arranging the first arc straight groove, the second arc straight groove, the first straight groove, the first connecting member, the second connecting member, etc., so that the connection of the hollow beam body is more stable, and the height of the first connecting member and the second connecting member is respectively lower than the first arc straight groove, the second arc straight groove, and the first straight groove, so that the contact area is increased during the later pouring, thereby increasing the strength of the connection, so that cracks are not easy to appear at the joints of the hollow beam body.

Description

A continuous composite beam bridge

Technical Field

The utility model relates to the field of combined beam bridges, in particular to a continuous combined beam bridge.

Background Art

A continuous beam bridge is a continuous beam bridge with two or more spans, and is a statically indeterminate system. When a continuous beam is subjected to a constant live load, the negative bending moment at the fulcrum generated has the effect of unloading the positive bending moment in the mid-span, making the internal force state more uniform and reasonable. As a result, the beam height can be reduced, thereby increasing the clearance under the bridge and saving materials. It also has high rigidity, good integrity, high overload capacity, high safety, and few expansion joints on the bridge deck. In addition, because the bending moment of the mid-span section is reduced, the span of the bridge can be increased. Composite beam bridges are divided into prefabricated and cast types. The cast type first builds a reinforced frame and then uses concrete to cast it into shape. The prefabricated type first makes a hollow bridge and then overlaps multiple groups of prefabricated beams and then casts the overlaps into shape.

Although the prefabricated composite beam bridge is simpler and more convenient than the cast-in-place composite beam bridge, after the hollow bridges in the prefabricated composite beam bridge are built, joints will be reserved between them. Although the upper surface will be cast as a whole to make it one piece later, cracks are still prone to appear at the joints of the hollow bridges during later use. Based on this, a continuous composite beam bridge is provided.

Utility Model Content

The utility model aims to provide a continuous composite beam bridge in order to solve the problem that cracks are easily formed at the joints of the hollow bridge of the composite beam bridge.

To achieve the above object, the utility model provides the following technical solutions: a continuous composite beam bridge, comprising a hollow beam body, wherein a plurality of groups of first arc straight grooves and second arc straight grooves are formed at equal intervals on the upper end of the hollow beam body, wherein the plurality of groups of the first arc straight grooves and the second arc straight grooves are mutually staggered and respectively penetrate to both sides of the hollow beam body;

A plurality of groups of the first arc straight grooves and the second arc straight grooves are formed at the bottom of the arc ends correspondingly with a plurality of groups of the first circular hole grooves and the second circular hole grooves;

The upper end of the hollow beam body is also equidistantly provided with a plurality of groups of second connecting members, and the lower ends of the plurality of groups of the second connecting members are symmetrically fixedly installed with second connecting columns matching the first circular hole groove and the second circular hole groove;

The upper end of the hollow beam body is also formed with multiple groups of first straight grooves at equal intervals, and the multiple groups of first straight grooves are arranged in parallel with each other and are perpendicularly connected to the first arc straight groove and the second arc straight groove. The first straight groove is formed with a third circular hole groove at the bottom of the inner wall near the two ends of the hollow beam body, and the first connecting members are correspondingly and equidistantly arranged inside the first straight groove, and the lower ends of the first connecting members are symmetrically fixed with first connecting columns matching the third circular hole groove.

As a further solution of the utility model: multiple groups of second straight grooves are correspondingly formed below the multiple groups of the first straight grooves, and the multiple groups of the second straight grooves are formed into the interior of the hollow beam body and have a depth greater than the depth of the first circular arc straight grooves and the second circular arc straight grooves.

As a further solution of the utility model: multiple groups of the first connecting members and the second connecting members are respectively and equidistantly provided inside the multiple groups of the first arc grooves and the second arc grooves, so as to increase the contact area between the later casting surface and the first connecting members and the second connecting members.

As a further solution of the utility model: when the two hollow beams are horizontally and transversely spliced, the spacing between the two second connecting columns at the bottom of the second arc groove matches the spacing between the two horizontally and transversely aligned first circular hole grooves and the spacing between the two horizontally and transversely aligned second circular hole grooves;

When the two hollow beams are horizontally and longitudinally spliced, the distance between the two first connecting columns at the bottom of the first connecting member matches the distance between the two third circular hole grooves aligned horizontally and longitudinally.

As a further solution of the utility model: the height and width of the first connecting member are respectively smaller than the height and width of the first straight groove, and the height and width of the second connecting member are respectively smaller than the height and width of the first circular arc straight groove and the second circular arc straight groove.

Compared with the prior art, the beneficial effects of the utility model are:

By arranging a first arc straight groove, a second arc straight groove, a first straight groove, a first connecting piece, a second connecting piece, etc. to connect multiple groups of hollow beams, the connection of the hollow beams is made more stable, and the heights of the first connecting piece and the second connecting piece are respectively lower than the first arc straight groove, the second arc straight groove, and the first straight groove, which increases the contact area during the later pouring, thereby increasing the strength of the connection and making it less likely for cracks to appear at the joints of the hollow beams.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of a three-dimensional structure of a single hollow beam of the utility model;

FIG2 is a schematic diagram of a partially enlarged structure of a plurality of hollow beams overlapped in the utility model;

FIG3 is a schematic diagram of a partially enlarged structure of the first connecting member and the second connecting member separated from each other in the present invention;

FIG. 4 is a schematic structural diagram of the first connecting member and the second connecting member of the present invention.

In the figure: 1, hollow beam body; 2, first arc straight groove; 3, second arc straight groove; 4, first circular hole groove; 5, first straight groove; 6, second straight groove; 7, second circular hole groove; 8, first connecting member; 9, first arc groove; 10, second connecting member; 11, second arc groove; 12, third circular hole groove; 13, first connecting column; 14, second connecting column.

DETAILED DESCRIPTION

The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

Please refer to Figures 1 to 4. In the embodiment of the utility model, a continuous composite beam bridge includes a hollow beam body 1. A plurality of first arc straight grooves 2 and second arc straight grooves 3 are formed at equal intervals on the upper end of the hollow beam body 1. The plurality of first arc straight grooves 2 and second arc straight grooves 3 are mutually staggered and respectively penetrate to both sides of the hollow beam body 1.

A plurality of groups of first arc straight grooves 2 and second arc straight grooves 3 are formed at the bottom of the arc ends correspondingly with a plurality of groups of first circular hole grooves 4 and second circular hole grooves 7;

The upper end of the hollow beam body 1 is also equidistantly provided with a plurality of groups of second connecting members 10, and the lower ends of the plurality of groups of second connecting members 10 are symmetrically fixedly installed with second connecting columns 14 matching the first circular hole groove 4 and the second circular hole groove 7;

A plurality of groups of first straight grooves 5 are formed at equal intervals on the upper end of the hollow beam body 1. The plurality of groups of first straight grooves 5 are arranged in parallel with each other and are vertically connected to the first arc straight grooves 2 and the second arc straight grooves 3. A third circular hole groove 12 is formed at the bottom of the inner wall of the first straight groove 5 near the two ends of the hollow beam body 1. First connecting members 8 are correspondingly and equidistantly arranged inside the first straight groove 5. The lower ends of the first connecting members 8 are symmetrically fixed with first connecting columns 13 matching the third circular hole grooves 12.

In this embodiment: when using the continuous modular beam bridge, multiple groups of hollow beam bodies 1 are first cast, and then the multiple groups of hollow beam bodies 1 are transported to the location where the beam bridge is to be erected. Thereafter, the multiple groups of hollow beam bodies 1 are longitudinally connected using the first connecting member 8, and then the multiple groups of hollow beam bodies 1 are transversely connected using the second connecting member 10. During the connection process, the first connecting column 13 connected by the first connecting member 8 cooperates with the third circular hole groove 12, and the second connecting column 14 connected by the second connecting member 10 cooperates with the first circular hole groove 4 and the second circular hole groove 7. This makes the connection between the multiple groups of hollow beam bodies 1 more stable, thereby preventing cracks from occurring at the joints of the hollow beam bodies 1 during the later casting and forming.

Please refer to FIG. 1 , multiple groups of second straight grooves 6 are correspondingly formed below the multiple groups of first straight grooves 5 , and the multiple groups of second straight grooves 6 are formed inside the hollow beam body 1 and have a depth greater than the depth of the first arc straight grooves 2 and the second arc straight grooves 3 .

In this embodiment: through this structural setting, during the later pouring, the first connecting member 8 and the second connecting member 10 are vertically overlapped and located inside the first straight groove 5, the first circular hole groove 4, and the second circular hole groove 7, so that the first connecting member 8 and the second connecting member 10 can be completely covered during pouring, thereby avoiding pouring dead corners.

Please refer to Figures 1 to 4 in particular. Multiple groups of first connecting members 8 and second connecting members 10 are respectively and equidistantly provided inside with multiple groups of first arc grooves 9 and second arc grooves 11 for increasing the contact area between the later casting surface and the first connecting members 8 and the second connecting members 10.

When two hollow beam bodies 1 are horizontally and transversely spliced, the spacing between the two second connecting columns 14 at the bottom of the second arc groove 11 matches the spacing between the two horizontally and transversely aligned first circular hole grooves 4 and the spacing between the two horizontally and transversely aligned second circular hole grooves 7;

When two hollow beam bodies 1 are horizontally and longitudinally spliced, the distance between the two first connecting columns 13 at the bottom of the first connecting member 8 matches the distance between the two third circular hole grooves 12 that are horizontally and longitudinally aligned.

In this embodiment: through this structural setting, the first connecting column 13 connected by the first connecting member 8 cooperates with the third circular hole groove 12, and the second connecting column 14 connected by the second connecting member 10 cooperates with the first circular hole groove 4 and the second circular hole groove 7, so that the connection between the multiple groups of hollow beam bodies 1 is more stable, so that cracks are not easy to appear at the joints of the hollow beam bodies 1 during the later casting and molding.

Please refer to FIG. 2 , the height and width of the first connecting member 8 are respectively smaller than the height and width of the first straight groove 5 , and the height and width of the second connecting member 10 are respectively smaller than the height and width of the first arc straight groove 2 and the second arc straight groove 3 .

In this embodiment: through this structural setting, during the later pouring, the pouring cement can completely wrap the first connecting member 8 and the second connecting member 10, thereby increasing the connection strength.

What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims (5)

1. The continuous combined beam bridge comprises a hollow beam body (1), and is characterized in that a plurality of groups of first circular arc straight grooves (2) and second circular arc straight grooves (3) are formed at the upper end of the hollow beam body (1) at equal intervals, and the plurality of groups of first circular arc straight grooves (2) and second circular arc straight grooves (3) are staggered with each other and respectively penetrate through two sides of the hollow beam body (1);

A plurality of groups of first circular hole grooves (4) and second circular hole grooves (7) are correspondingly formed at the bottoms of the circular arc end heads of the first circular arc straight grooves (2) and the second circular arc straight grooves (3);

The upper end of the hollow beam body (1) is also equidistantly provided with a plurality of groups of second connecting pieces (10), and the lower ends of the plurality of groups of second connecting pieces (10) are symmetrically and fixedly provided with second connecting columns (14) matched with the first round hole grooves (4) and the second round hole grooves (7);

The hollow beam body (1) upper end still equidistance shaping has multiunit first straight flute (5), multiunit first straight flute (5) parallel arrangement each other and with first circular arc straight flute (2), second circular arc straight flute (3) looks perpendicular switch on, the inner wall bottom shaping that first straight flute (5) are close to hollow beam body (1) both ends has third round hole groove (12), the inside equidistance that corresponds of first straight flute (5) is provided with first connecting piece (8), equal symmetry fixed mounting in first connecting piece (8) lower extreme has first spliced pole (13) with third round hole groove (12) assorted.

2. The continuous composite girder bridge according to claim 1, wherein a plurality of groups of second straight grooves (6) are correspondingly formed below the first straight grooves (5), and the second straight grooves (6) are formed inside the hollow girder body (1) and have a depth greater than the depths of the first circular arc straight grooves (2) and the second circular arc straight grooves (3).

3. The continuous composite girder bridge according to claim 1, wherein a plurality of groups of first circular arc grooves (9) and second circular arc grooves (11) are respectively formed in the first connecting piece (8) and the second connecting piece (10) at equal intervals, and are used for increasing the contact area between the later pouring surface and the first connecting piece (8) and the second connecting piece (10).

4. A continuous composite girder bridge according to claim 3, wherein when two hollow girder bodies (1) are horizontally spliced, the distance between two second connecting columns (14) at the bottom of the second circular arc groove (11) is matched with the distance between two first circular hole grooves (4) horizontally aligned and the distance between two second circular hole grooves (7) horizontally aligned;

When the two hollow beam bodies (1) are horizontally and longitudinally spliced, the distance between the two first connecting columns (13) at the bottom of the first connecting piece (8) is matched with the distance between the two third round hole grooves (12) which are horizontally and longitudinally aligned.

5. A continuous composite girder bridge according to claim 1, characterized in that the first connecting piece (8) has a height and a width smaller than the height and the width of the first straight groove (5), respectively, and the second connecting piece (10) has a height and a width smaller than the height and the width of the first circular arc straight groove (2) and the second circular arc straight groove (3), respectively.