CN211036680U - Bracket for high pier variable-height curve continuous steel truss girder main pier - Google Patents
Bracket for high pier variable-height curve continuous steel truss girder main pier Download PDFInfo
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- CN211036680U CN211036680U CN201921441017.5U CN201921441017U CN211036680U CN 211036680 U CN211036680 U CN 211036680U CN 201921441017 U CN201921441017 U CN 201921441017U CN 211036680 U CN211036680 U CN 211036680U
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Abstract
The utility model discloses a bracket for a main pier of a high pier variable-height curve continuous steel truss girder, which comprises two parallel supporting units and two T-shaped stand columns, wherein the supporting units are arranged at intervals, each supporting unit comprises two bottom bracing structures and a supporting beam loaded at the top of the main pier, the two bottom bracing structures are arranged at the bottom of the supporting beam at intervals and form two triangular supports used for being arranged on the pier body of the main pier, and an accommodating space used for accommodating the main pier is formed between the two triangular supports; the T-shaped upright column comprises an upright column cross rod and upright column vertical rods, wherein the two ends of the upright column cross rod are respectively assembled on the two supporting cross beams, the upright column vertical rods are assembled on the upright column cross rod, the two upright column vertical rods are arranged on the two sides of the accommodating space, and the upright column vertical rods are used for supporting the second lower chord node. The utility model improves the common bracket, adapts to the change of the position of the horizontal surface of the lower chord node of the steel beam needing to be supported and connected through the supporting unit and the T-shaped upright post, is more flexible and convenient than the common bracket, and can be used repeatedly; the problems that the floor stand is large in material consumption and greatly influenced by wind load or cannot be used are also solved.
Description
Technical Field
The utility model relates to a bridge engineering technical field, concretely relates to high mound becomes bracket for high curve continuous steel truss girder owner mound.
Background
The steel truss bridge has beautiful appearance and strong spanning capability, and is widely applied to mountainous lakes or landscape bridge structures. Referring to fig. 1, for a curved variable height continuous steel truss girder, the lower chord node of the steel truss girder 7 at the top of the main pier comprises a first lower chord node 70 positioned in the middle and two second lower chord nodes 71 respectively arranged at two sides of the first lower chord node 70, and the second lower chord nodes 71 are above the first lower chord node 70, so that the lower chord nodes of the steel truss girder 7 are different in height in the vertical plane of the bridge, and the first lower chord node 70 and the two second lower chord nodes 71 are not on the same straight line in the plane of the bridge, so that the requirement on the pier top bracket is high, and the requirement on the supporting function of a common bracket is met, and the requirement that the vertical plane of the lower chord node of the steel truss girder 7 is different in height and not on the same straight line is met.
The common bracket is generally attached to the pier body by adopting a floor stand or a bracket so as to support the steel truss beam on the top of the main pier.
Wherein, the floor stand atress is direct, but to high mound top steel longeron segmental construction, adopts the extravagant steel of floor stand, and the support receives the wind-load to influence greatly, consequently is not applicable to high mound top steel longeron and erects.
The bracket attached to the pier body through the bracket can avoid wind load influence, the material consumption is economical, but for the vertical-face variable-height and planar curved steel truss, the common bracket design construction needs to correspond to the joint position of the lower chord connection of the steel girder in a coordinated manner, the bracket has multiple bracket types and is inconvenient to construct, improvement is needed, an effective bracket supporting structure capable of adapting to the position change of the horizontal vertical face of the lower chord joint of the steel truss is designed, and the structure can be repeatedly used and is convenient to construct.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model aims to provide a bracket for a main pier of a high pier variable-height curve continuous steel truss girder, which adapts to the position change of a horizontal surface of a lower chord node of the steel girder needing to be supported and connected through a supporting unit and a T-shaped upright post, is more flexible and convenient than a common bracket and can be used repeatedly; the problems that the floor stand is large in material consumption and greatly influenced by wind load or cannot be used are solved.
In order to achieve the above purpose, the utility model adopts the technical proposal that: the utility model provides a high mound becomes bracket for continuous steel truss girder main pier of high curve, its is used for supporting the steel truss girder, the steel truss girder lower chord includes first lower chord node and is located first lower chord node top and divide the second lower chord node of locating first lower chord node both sides, it includes:
the support units are arranged in parallel and at intervals and comprise two bottom support structures and a support cross beam used for bearing a cap beam at the top of the main pier, the two bottom support structures are arranged at the bottom of the support cross beam at intervals and form two triangular supports arranged on the pier body of the main pier in a group, and an accommodating space used for accommodating the main pier is formed between the two triangular supports;
the T-shaped stand columns comprise stand column cross rods with two ends respectively assembled on the two supporting cross beams and stand column vertical rods assembled on the stand column cross rods, the two stand column vertical rods of the T-shaped stand columns are arranged on two sides of the accommodating space, and the two stand column vertical rods of the T-shaped stand columns are configured to be respectively used for supporting the two second lower chord nodes.
Furthermore, the bracket also comprises two gusset plates, and the two gusset plates are respectively used for fixing the two upright posts and the steel truss girder.
Further, when the gusset plate is installed on the upright post vertical rod, the wall surface of the gusset plate connected with the steel truss girder inclines towards the side where the accommodating space is located.
Furthermore, the node board and the upright post vertical rod are fixedly connected through a connecting board and a fastener.
Further, the bracket further comprises a first anchor for anchoring the supporting beam to the top of the main pier.
Further, the first anchoring piece adopts a pre-buried rib.
Furthermore, the bracket also comprises a second anchoring piece, one end of the second anchoring piece is used for being connected with one of the bottom bracing structures of the supporting unit, and the other end of the second anchoring piece is used for penetrating through the main pier body and being connected with the other bottom bracing structure of the supporting unit, so that the two bottom bracing structures are abutted against the main pier body.
Further, the second anchoring part adopts a counter-pulling steel strand, a counter-pulling screw rod or a counter-pulling anchor rod.
Furthermore, the triangular support is in the shape of a right triangle, one right-angle side is formed by the supporting cross beam, and the other right-angle side is used for abutting against the main pier body.
Further, the bracket also comprises a shoveling pad arranged between the supporting beam and the top of the main pier.
Compared with the prior art, the utility model has the advantages of:
(1) the U-shaped bracket structure solves the problems that the high-pier floor stand is large in material consumption and wind load or the floor stand is used unconditionally. Simple structure, convenient construction can reuse to the bridge pier structure of the same type.
(2) For the problem that a plurality of steel truss girder main pier brackets with different plane curve radiuses and different vertical surface structures are connected with the lower chord node, the T-shaped upright post can be well adapted to the spatial position of the lower chord node by adjusting the transverse and vertical rods, and construction is simplified.
(3) One end of the T-shaped upright post is connected with the steel truss girder gusset plate fastener, and the other end of the T-shaped upright post is welded with the U-shaped bracket on site. The gusset plate can effectively protect the main structure of the steel truss girder from being influenced by the construction stage, and the on-site welding between the transverse and vertical rods of the T-shaped upright post is convenient for on-site operation and adjustment.
Drawings
FIG. 1 is a schematic structural view of a curved variable-height continuous steel truss girder;
fig. 2 is a bracket for a main pier of a high pier variable-height curve continuous steel truss girder provided by the embodiment of the utility model;
fig. 3 is a schematic structural view of a bracket for a main pier of a high pier variable-height curve continuous steel truss girder provided by an embodiment of the invention when in use;
FIG. 4 is a view taken along line B-B of FIG. 3;
fig. 5 is a partially enlarged view of fig. 3 at C.
In the figure: A. an accommodating space; 1. a support unit; 10. a bottom bracing structure; 11. a support beam; 2. a T-shaped upright post; 20. a column rail; 21. vertical columns; 3. a gusset plate; 4. a first anchor; 5. a second anchor; 6. a main pier; 7. a steel truss beam; 70. a first lower chord node; 71. a second lower chord node; 8. a connecting plate; 9. a fastener.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Referring to fig. 2 to 4, the embodiment of the present invention provides a bracket for a high pier high-rise curve continuous steel truss girder main pier, which is used for supporting a steel truss girder 7, wherein a lower chord of the steel truss girder 7 includes a first lower chord node 70 and second lower chord nodes 71 which are located above the first lower chord node 70 and are respectively arranged at two sides of the first lower chord node 70, and includes two supporting units 1 and two T-shaped uprights 2, the two supporting units 1 are arranged in parallel and at intervals, the supporting unit 1 includes two bottom bracing structures 10 and a supporting beam 11 for bearing a cap beam at the top of the main pier 6, the two bottom bracing structures 10 are arranged at the bottom of the supporting beam 11 at intervals and form two triangular supports for being arranged at the pier body of the main pier 6, and a containing space a for containing the main pier 6 is formed between the two triangular supports, so that the supporting unit 1 forms a U-shaped structure as a whole; the T-shaped upright posts 2 comprise upright post cross rods 20 with two ends respectively assembled on the two supporting cross beams 11 and upright post vertical rods 21 assembled on the upright post cross rods 20, the upright post vertical rods 21 of the two T-shaped upright posts 2 are symmetrically arranged on two sides of the accommodating space A, the upright post vertical rods 21 of the two T-shaped upright posts 2 are configured to be respectively used for supporting two second lower chord nodes 71, the upright post cross rods 20 and the upright post vertical rods 21 can be welded on site, and the on-site welding is convenient for on-site operation and adjustment.
Referring to fig. 2, the bracket further comprises two gusset plates 3, the two gusset plates 3 are respectively used for fixing the two upright post vertical rods 21 and the steel truss girder 7, and the gusset plates 3 can effectively protect the main structure of the steel truss girder from being influenced by the construction stage. When the gusset plate 3 is mounted on the pillar vertical member 21, the wall surface of the gusset plate 3 connected to the steel girder 7 is inclined toward the side of the housing space a.
Referring to fig. 5, the node plate 3 is fixedly connected with the upright post 21 through the connecting plate 8 and the fastener 9. In this embodiment, the fastening member 9 is a nail or a high-strength bolt, and the connection is reliable and firm.
As shown in fig. 2 and 3, the carriage further comprises a first anchor 4 for anchoring the supporting beam 11 to the top of the main pier 6. In this embodiment, the first anchoring member 4 is a pre-embedded rib.
As shown in fig. 2, the bracket further comprises a second anchoring member 5, one end of the second anchoring member 5 is used for connecting with one of the bottom bracing structures 10 of the supporting unit 1, and the other end is used for penetrating through the main pier 6 pier body and connecting with the other bottom bracing structure 10 of the supporting unit 1, so that the two bottom bracing structures 10 are abutted against the main pier 6 pier body. In this embodiment, the second anchoring member 5 is a split steel strand, a split screw, or a split anchor.
Referring to fig. 2, the triangular support is a right triangle, one of the right-angled sides is formed by the supporting beam 11, and the other right-angled side is used for abutting against the pier body of the main pier 6.
The method of use of the present bracket is described in detail below:
(1) referring to fig. 3, two support units 1 are clamped on a hat beam of a main pier 6 from top to bottom, so that a support beam 11 is supported on the hat beam, the top of the main pier 6 and the hat beam are accommodated in an accommodating space a, and meanwhile, a vertical right-angle side of a triangular support in a right-angled triangle is abutted against a main pier 6 pier body;
(2) referring to fig. 3, the supporting beam 11 and the cap beam are anchored through a pre-embedded rib anchored on the cap beam, the supporting beam 11 and the top of the main pier 6 are tightly shoveled through a shoveling pad, and the two triangular supports are tightly pulled through a counter-pull steel strand belt penetrating through the pier body of the main pier 6;
(3) as shown in fig. 4, two supporting units 1 are ensured to correspond to one main girder of the steel truss girder 7, the upright posts 20 of two T-shaped upright posts 2 are placed according to the plane positions of two second lower chord nodes 71 of the corresponding steel truss girder 7 on the supporting cross beam 11, and the upright posts 21 are placed on the upright posts 20 according to the vertical positions of the second lower chord nodes 71 of the corresponding steel truss girder 7;
(4) referring to fig. 5, a second lower chord node 71 of the steel truss girder 7, which is required to be connected with the upright post 21, is welded with the node plate 3 in a factory in advance; when the gusset plate 3 is connected with the upright post vertical rod 21 again, the gusset plate 3 is fixed through the connecting plate 8 and the punching nail or the high-strength bolt, and the gusset plate 3 is cut off after the bracket is dismantled in the later stage.
The U-shaped bracket structure solves the problems that the high-pier floor stand is large in material consumption and wind load or the floor stand is used unconditionally. Simple structure, convenient construction can reuse to the bridge pier structure of the same type.
For the problem that a plurality of steel truss girder main pier brackets with different plane curve radiuses and different vertical surface structures are connected with the lower chord node, the T-shaped upright post can be well adapted to the spatial position of the lower chord node by adjusting the transverse and vertical rods, and construction is simplified.
One end of the T-shaped upright post is connected with the steel truss girder gusset plate fastener, and the other end of the T-shaped upright post is welded with the U-shaped bracket on site. The gusset plate can effectively protect the main structure of the steel truss girder from being influenced by the construction stage, and the on-site welding between the transverse and vertical rods of the T-shaped upright post is convenient for on-site operation and adjustment.
The present invention is not limited to the above embodiments, and for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations are also considered to be within the protection scope of the present invention. Those not described in detail in this specification are within the skill of the art.
Claims (10)
1. A bracket for a main pier of a high-pier variable-height curve continuous steel truss girder is used for supporting the steel truss girder (7), wherein the lower chord of the steel truss girder (7) comprises a first lower chord node (70) and second lower chord nodes (71) which are positioned above the first lower chord node (70) and are respectively arranged at two sides of the first lower chord node (70), and the bracket is characterized by comprising:
the support units (1) are arranged in parallel at intervals, each support unit (1) comprises two bottom support structures (10) and a support cross beam (11) used for bearing a cap beam at the top of a main pier (6), the two bottom support structures (10) are arranged at the bottom of the support cross beam (11) at intervals and form two triangular supports used for being arranged on the pier body of the main pier (6), and an accommodating space (A) used for accommodating the main pier (6) is formed between the two triangular supports;
two T shape stands (2), T shape stand (2) include that both ends are located two respectively the stand horizontal pole (20) of supporting beam (11) and group locate stand montant (21) on stand horizontal pole (20), two stand montant (21) of T shape stand (2) are located accommodating space (A) both sides, and two stand montant (21) of T shape stand (2) are configured to be used for supporting respectively two second lower chord node (71).
2. The bracket for the main pier of the high pier variable-height curve continuous steel truss girder as claimed in claim 1, wherein: the bracket further comprises two node plates (3), and the two node plates (3) are respectively used for fixing the two upright posts (21) and the steel truss girder (7).
3. The bracket for the main pier of the high pier variable-height curve continuous steel truss girder as claimed in claim 2, wherein: when the gusset plate (3) is installed on the upright post vertical rod (21), the wall surface of the gusset plate (3) connected with the steel truss girder (7) inclines towards the side where the accommodating space (A) is located.
4. The bracket for the main pier of the high pier variable-height curve continuous steel truss girder as claimed in claim 3, wherein: the gusset plate (3) is fixedly connected with the upright post (21) through a connecting plate (8) and a fastener (9).
5. The bracket for the main pier of the high pier variable-height curve continuous steel truss girder as claimed in claim 1, wherein: the carriage also comprises a first anchor (4) for anchoring the supporting beam (11) on top of the main pier (6).
6. The bracket for the main pier of the high pier variable-height curve continuous steel truss girder as claimed in claim 5, wherein: the first anchoring piece (4) adopts a pre-buried rib.
7. The bracket for the main pier of the high pier variable-height curve continuous steel truss girder as claimed in claim 1, wherein: the bracket further comprises a second anchoring piece (5), one end of the second anchoring piece (5) is used for being connected with one bottom support structure (10) of the supporting unit (1), and the other end of the second anchoring piece (5) is used for penetrating through the pier body of the main pier (6) and being connected with the other bottom support structure (10) of the supporting unit (1), so that the two bottom support structures (10) are abutted against the pier body of the main pier (6).
8. The bracket for the main pier of the high pier variable-height curve continuous steel truss girder as claimed in claim 7, wherein: the second anchoring piece (5) adopts a counter-pulling steel strand, a counter-pulling screw rod or a counter-pulling anchor rod.
9. The bracket for the main pier of the high pier variable-height curve continuous steel truss girder as claimed in claim 1, wherein: the triangular support is in the shape of a right-angled triangle, one right-angled side is formed by the supporting cross beam (11), and the other right-angled side is used for tightly abutting against the pier body of the main pier (6).
10. The bracket for the main pier of the high pier variable-height curve continuous steel truss girder as claimed in claim 1, wherein: the bracket also comprises a shoveling pad arranged between the supporting beam (11) and the top of the main pier (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921441017.5U CN211036680U (en) | 2019-08-30 | 2019-08-30 | Bracket for high pier variable-height curve continuous steel truss girder main pier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921441017.5U CN211036680U (en) | 2019-08-30 | 2019-08-30 | Bracket for high pier variable-height curve continuous steel truss girder main pier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211036680U true CN211036680U (en) | 2020-07-17 |
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ID=71567809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921441017.5U Active CN211036680U (en) | 2019-08-30 | 2019-08-30 | Bracket for high pier variable-height curve continuous steel truss girder main pier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211036680U (en) |
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2019
- 2019-08-30 CN CN201921441017.5U patent/CN211036680U/en active Active
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