CN110541352A - Reinforced connection unit between long-span pier column and bridge deck - Google Patents
Reinforced connection unit between long-span pier column and bridge deck Download PDFInfo
- Publication number
- CN110541352A CN110541352A CN201910953090.9A CN201910953090A CN110541352A CN 110541352 A CN110541352 A CN 110541352A CN 201910953090 A CN201910953090 A CN 201910953090A CN 110541352 A CN110541352 A CN 110541352A
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- bridge
- bridge deck
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- shaped
- steel
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 99
- 239000010959 steel Substances 0.000 claims abstract description 99
- 230000002787 reinforcement Effects 0.000 claims description 8
- 238000003466 welding Methods 0.000 claims description 5
- 239000004570 mortar (masonry) Substances 0.000 claims description 3
- 210000001503 joint Anatomy 0.000 claims 2
- 238000010276 construction Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract 1
- 230000003014 reinforcing effect Effects 0.000 description 9
- 238000005034 decoration Methods 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010079 rubber tapping Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
本发明公开了一种大跨度桥墩柱与桥面的加固型连接单元，它包括预制桥墩柱和方型桥柱，所述的本发明桥面与桥墩柱为钢混结构，两者之间截面形状契合且连接时使用螺纹短筋对桥面与桥墩柱之间的内置钢板进行连接，提高节点处的强度和稳定性；两跨之间的桥面下部使用钢管混凝土桁架进行加固处理，钢管混凝土桁架布置于两个桥墩柱之间，且在外部钢管位置进行焊接处理，斜向向两侧焊接桁架杆，桁架杆另一端焊接连接钢板，且连接钢板分别布置在双T型桥面的两个矩形肋上，起到支撑作用，支撑结构在横跨之间均匀布置，由于钢管桁架和三角形稳定的力学性能大幅度提高桥梁整体的强度与稳定性，适应桥梁施工技术领域的发展。
The invention discloses a reinforced connection unit between a long-span pier column and a bridge deck, which includes a prefabricated pier column and a square bridge column. The bridge deck and the pier column of the present invention are steel-concrete structures. The shape fits well and the built-in steel plate between the bridge deck and the pier column is connected by threaded short ribs to improve the strength and stability of the joint; the lower part of the bridge deck between the two spans is reinforced with steel tube concrete trusses, and steel tube concrete The truss is arranged between two pier columns, and welded at the position of the outer steel pipe, the truss rods are welded obliquely to both sides, and the other end of the truss rods is welded with connecting steel plates, and the connecting steel plates are respectively arranged on the two sides of the double T-shaped bridge deck. The rectangular rib plays a supporting role, and the supporting structure is evenly arranged between the spans. Due to the mechanical properties of the steel pipe truss and the triangular stability, the strength and stability of the bridge as a whole are greatly improved, and it adapts to the development of bridge construction technology.
Description
Technical Field
The invention relates to a bridge, in particular to a reinforced connecting unit of a large-span pier stud and a bridge floor.
Background
A bridge is a building built for a road to cross natural or artificial barriers, on a highway or a railway traffic line, the bridge is often the bottleneck for restraining traffic load and limiting the passing of overweight vehicles, for example, in the fields of chemical industry, petroleum, electric power, metallurgy, buildings and the like, the transportation of large-scale equipment or components is often limited because the transportation exceeds the design load of the bridge, although some equipment and components can be transported in batches in a dismounting mode, the whole equipment or components cannot be dismounted under the condition that the equipment or the components are integral, so the bearing capacity of the bridge is exceeded, the transportation of the integral equipment and components is difficult, and the foundation is difficult to expand in a large range due to the limitation of the road or the building around the foundation, and the bearing capacity of the integral equipment and components is difficult to greatly improve.
However, the rectangular steel pipe truss made of partially Filled Concrete (PCF for short) is a novel structure composed of rectangular steel pipes and rectangular steel pipe Concrete, the main pipe of the truss is a steel pipe or a steel pipe Concrete member, the branch pipes are rectangular steel pipe members, and the branch pipes and the main pipe are directly connected in a penetrating manner by adopting welding seams, so that the truss is a novel large-span and heavy-load structural form and has a good application prospect in bridge engineering.
Disclosure of Invention
The invention aims to provide a reinforced connecting unit of a large-span pier column and a bridge floor, which is characterized in that a steel pipe concrete truss is additionally arranged on the basis of supporting the bridge floor by the pier column to further reinforce the upper bridge floor, and the strength, the stability, the durability and the appearance of the structure can be greatly improved due to the performance of the steel pipe truss, so that the reinforced connecting unit is suitable for the development of the bridge construction field.
in order to solve the problems in the prior art, the technical scheme adopted by the invention is as follows:
The reinforced connecting unit of the large-span pier stud and the bridge floor comprises two prefabricated pier studs and a double-T-shaped bridge floor, wherein each prefabricated pier stud consists of a square pier stud positioned below and a trapezoidal supporting part positioned above, two rectangular grooves are symmetrically arranged on the trapezoidal supporting part, and built-in steel plates of the pier studs are embedded in the two ends of the trapezoidal supporting part; the cross section of the double-T-shaped bridge surface is double-T-shaped, two rectangular ribs are arranged at the bottom of the double-T-shaped bridge surface, the rectangular ribs correspond to the rectangular grooves in the prefabricated bridge pier columns in size, and bridge surface built-in steel plates are arranged at two ends of the double-T-shaped bridge surface; the double-T-shaped bridge deck is lapped at the middle position of two adjacent prefabricated bridge pier columns, rectangular grooves on the prefabricated bridge pier columns are in fit connection with rectangular ribs on the double-T-shaped bridge deck, bridge column built-in steel plates on the prefabricated bridge pier columns correspond to bridge deck built-in steel plates on the double-T-shaped bridge deck in position, reserved short rib openings are arranged above the steel plates, and threaded connection short ribs (11) are arranged in the reserved short rib openings to connect the bridge column built-in steel plates on the prefabricated bridge pier columns and the bridge deck built-in steel plates on the double-T-shaped bridge deck into a whole; a circular opening is reserved in the center of a square bridge column and a trapezoidal supporting part on a prefabricated bridge pier column, the size of the circular opening is consistent with the circular section of a concrete filled steel tube reinforcing part, the concrete filled steel tube reinforcing part is arranged between adjacent prefabricated bridge pier columns to serve as a reinforcing supporting rod, steel plate butt-joint grooves are evenly arranged at the bottoms of rectangular ribs on a double-T-shaped bridge face, the size of the steel plate butt-joint grooves corresponds to a rectangular connecting steel plate, the rectangular connecting steel plate is arranged in the steel plate butt-joint grooves, oblique truss rods are obliquely arranged between the rectangular connecting steel plate and the concrete filled steel tube reinforcing part, the upper ends of the oblique truss rods are welded on the rectangular connecting steel plate, and the lower ends of the oblique truss rods are welded on.
Further, the concrete filled steel tube reinforcing members are filled with concrete in the steel tubes, and welding treatment is carried out on the outer steel tubes between the adjacent concrete filled steel tube reinforcing members.
Furthermore, mortar is used for leveling after the reserved short rib openings arranged on the upper surface of the double-T-shaped bridge deck are connected.
Furthermore, the bridge pillar built-in steel plates on the prefabricated bridge pier columns are simultaneously connected with the bridge deck built-in steel plates on the left and right double-T-shaped bridge decks.
The invention has the advantages and beneficial effects that:
The reinforced connecting unit of the large-span pier stud and the bridge floor comprises two prefabricated pier studs and a double-T-shaped bridge floor, the double-T-shaped bridge floor is connected to the middle position of the two prefabricated pier studs at the lower part in a lap joint mode, built-in steel plates are uniformly arranged inside the prefabricated pier studs and the double-T-shaped bridge floor, the bridge floor and the pier studs are of a steel-concrete structure, the cross section shapes of the bridge floor and the pier studs are matched, and during connection, the built-in steel plates between the bridge floor and the pier studs are connected through threaded short ribs, so that the strength and stability of joints are improved, and the stability of a bridge body structure is improved. The bridge floor lower part between two strides uses the steel pipe concrete truss to consolidate and handles, the steel pipe concrete truss arranges between two pier stud, and weld treatment in outside steel pipe position, the slant is to both sides welding truss pole, truss pole other end welded connection steel sheet, and the steel sheet is arranged respectively on two rectangle ribs of two T type bridge floors, play the supporting role, bearing structure evenly arranges between spaning, because the steel pipe truss improves the holistic intensity of bridge and stability with triangle-shaped stable mechanical properties by a wide margin, adapt to the development in bridge construction technical field.
Drawings
the invention is described in further detail below with reference to the accompanying drawings:
FIG. 1 is a schematic view of the overall structure of a reinforced connecting unit for a long-span pier stud and a bridge deck according to the present invention;
FIG. 2 is a side view of the section A-A in FIG. 1, namely the connection between the prefabricated pier stud and the double-T-shaped bridge deck;
FIG. 3 is a side view of the prefabricated pier stud and the double T-shaped bridge deck;
FIG. 4 is a cross-sectional view taken along line B-B of FIG. 1;
FIG. 5 is a top view of a double T deck;
FIG. 6 is a front view of the connection between a prefabricated pier stud and a double-T-shaped bridge surface node;
FIG. 7 is a side view of the connection between prefabricated pier stud and a node of a double-T-shaped bridge deck;
Fig. 8 is a schematic structural arrangement diagram of the oblique truss rods and the rectangular connecting steel plate.
in the figure: the prefabricated bridge pier comprises a prefabricated bridge pier column 1, square bridge columns 1-1, trapezoidal supporting parts 1-2, rectangular grooves 1-3, double-T-shaped bridge decks 2-1, rectangular ribs 2-1, built-in steel plates 3 for the bridge columns, circular holes 4, built-in steel plates 5 for the bridge decks, concrete-filled steel tubes 6, oblique truss rods 7, rectangular connecting steel plates 8, butt-joint grooves 9 for the steel plates, self-tapping and self-drilling screws 10, threaded connecting short ribs 11 and reserved short rib holes 12.
Detailed Description
in order to further illustrate the present invention, the following detailed description of the present invention is given with reference to the accompanying drawings and examples, which should not be construed as limiting the scope of the present invention.
As shown in figure 1, the reinforced connecting unit for the large-span pier stud and the bridge deck comprises two prefabricated pier studs 1 and a double-T-shaped bridge deck 2, wherein the prefabricated pier studs 1 and the double-T-shaped bridge deck 2 are of prefabricated steel-concrete structures. As shown in fig. 2-7, the prefabricated pier stud 1 consists of a square pier stud 1-1 positioned below and a ladder-shaped support part 1-2 positioned above, two rectangular grooves 1-3 are symmetrically arranged on the ladder-shaped support part 1-2, and a pier built-in steel plate 3 is embedded in two ends of the ladder-shaped support part 1-2; the cross section of the double-T-shaped bridge deck 2 is double-T-shaped, two rectangular ribs 2-1 are arranged at the bottom of the double-T-shaped bridge deck 2, the rectangular ribs 2-1 correspond to rectangular grooves 1-3 on the prefabricated bridge pier stud 1 in size, and bridge deck built-in steel plates 5 are arranged at two ends of the double-T-shaped bridge deck 2; the double-T-shaped bridge surfaces 2 are lapped at the middle positions of two adjacent prefabricated bridge pier columns 1, rectangular grooves 1-3 on the prefabricated bridge pier columns 1 are matched and connected with rectangular ribs 2-1 on the double-T-shaped bridge surfaces 2, bridge post built-in steel plates 3 on the prefabricated bridge pier columns 1 correspond to bridge deck built-in steel plates 5 on the double-T-shaped bridge surfaces 2 in position, reserved short rib openings 12 are arranged above the steel plates, and threaded connecting short ribs 11 are arranged in the reserved short rib openings 12 to connect the bridge post built-in steel plates 3 on the prefabricated bridge pier columns 1 and the bridge deck built-in steel plates 5 on the double-T-shaped bridge surfaces 2 into a whole; a round hole 4 is reserved in the centers of a square bridge pillar 1-1 and a trapezoid supporting part 1-2 on the prefabricated bridge pier stud 1, the size of the round hole is consistent with the cross section of a concrete filled steel tube reinforcing part 6 in a round mode, and the concrete filled steel tube reinforcing part 6 is arranged between the adjacent prefabricated bridge pier studs 1 to serve as a reinforcing supporting rod. As shown in fig. 5 and 8, steel plate butt-joint grooves 9 are uniformly arranged at the bottoms of the rectangular ribs 2-1 on the double-T-shaped bridge deck 2, the size of each steel plate butt-joint groove 9 corresponds to that of a rectangular connecting steel plate 8, the rectangular connecting steel plates 8 are arranged at the bottoms of the rectangular ribs 2-1 in the steel plate butt-joint grooves 9, self-tapping self-drilling screws 10 are used for nailing the rectangular ribs 8-1, oblique truss rods 7 are obliquely arranged between the rectangular connecting steel plates 8 and the concrete-filled steel tube reinforcements 6, the upper ends of the oblique truss rods 7 are welded on the rectangular connecting steel plates 8, and the lower ends of the oblique truss rods are welded on the.
concrete filled steel tube reinforcement 6 fills the concrete in for the steel pipe, saves steel when having strengthened the resistance to compression shearing performance of structure, carries out welding treatment in outside steel pipe department between the adjacent concrete filled steel tube reinforcement 6.
And after the reserved short rib openings 12 arranged on the upper surface of the double-T-shaped bridge deck 2 are connected, mortar is used for leveling.
The bridge floor built-in steel plates 5 on the left and right double-T bridge floor 2 are connected to the bridge column built-in steel plates 3 on the prefabricated bridge pier column 1 simultaneously, the double-T bridge floor 2 on the two sides are further fixed in position, and overall stability is improved.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910953090.9A CN110541352A (en) | 2019-10-09 | 2019-10-09 | Reinforced connection unit between long-span pier column and bridge deck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910953090.9A CN110541352A (en) | 2019-10-09 | 2019-10-09 | Reinforced connection unit between long-span pier column and bridge deck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110541352A true CN110541352A (en) | 2019-12-06 |
Family
ID=68715377
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910953090.9A Withdrawn CN110541352A (en) | 2019-10-09 | 2019-10-09 | Reinforced connection unit between long-span pier column and bridge deck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110541352A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111236057A (en) * | 2020-03-26 | 2020-06-05 | 沈阳促晋科技有限公司 | Connecting device for anti-seismic support of viaduct panel and bridge panel |
| CN114787449A (en) * | 2020-07-20 | 2022-07-22 | 王建友 | Viaduct structure |
| CN115030010A (en) * | 2022-07-28 | 2022-09-09 | 山东华亿钢机股份有限公司 | Combined steel bridge structure system and its installation and construction method |
-
2019
- 2019-10-09 CN CN201910953090.9A patent/CN110541352A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111236057A (en) * | 2020-03-26 | 2020-06-05 | 沈阳促晋科技有限公司 | Connecting device for anti-seismic support of viaduct panel and bridge panel |
| CN114787449A (en) * | 2020-07-20 | 2022-07-22 | 王建友 | Viaduct structure |
| CN115030010A (en) * | 2022-07-28 | 2022-09-09 | 山东华亿钢机股份有限公司 | Combined steel bridge structure system and its installation and construction method |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20191206 |
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| WW01 | Invention patent application withdrawn after publication |